diff --git a/pyproject.toml b/pyproject.toml
index 4a67ea5..a98ccff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,9 +8,7 @@ description = "An extendable static site generator powered by the Force. =/"
 readme = "README.rst"
 requires-python = ">= 3.10"
 license = "BSD-3-Clause"
-authors = [
-    { name = "Ihor Kalnytskyi", email = "ihor@kalnytskyi.com" }
-]
+authors = [{ name = "Ihor Kalnytskyi", email = "ihor@kalnytskyi.com" }]
 keywords = ["static", "site", "blog", "generator", "markdown"]
 classifiers = [
     "Environment :: Console",
@@ -72,16 +70,54 @@ scripts.run = "python -m pytest {args:-vv}"
 
 [tool.hatch.envs.lint]
 detached = true
-dependencies = ["ruff == 0.2.*"]
+dependencies = ["ruff == 0.8.*"]
 scripts.check = ["ruff check {args:.}", "ruff format --check --diff {args:.}"]
 scripts.fmt = ["ruff check --fix {args:.}", "ruff format {args:.}"]
 
+[tool.ruff]
+line-length = 100
+
 [tool.ruff.lint]
-select = ["F", "E", "W", "I", "S", "FBT", "B", "C4", "DTZ", "T10", "ISC", "RET", "SLF", "RUF"]
-ignore = ["S603", "S701", "B904", "ISC001"]
+select = ["ALL"]
+ignore = [
+    "A001",
+    "A002",
+    "ANN",
+    "ARG001",
+    "ARG002",
+    "B904",
+    "C",
+    "COM812",
+    "D",
+    "INP001",
+    "ISC001",
+    "N801",
+    "N802",
+    "PERF203",
+    "PLR",
+    "PLW2901",
+    "PTH",
+    "S603",
+    "S701",
+    "SIM117",
+    "TID252",
+]
 
 [tool.ruff.lint.isort]
 known-first-party = ["holocron"]
 
 [tool.ruff.lint.per-file-ignores]
-"tests/*" = ["E501", "S101", "S607", "SLF001", "RUF001"]
+"src/holocron/__main__.py" = ["T201"]
+"tests/*" = [
+    "BLE001",
+    "D",
+    "E501",
+    "PT011",
+    "PT012",
+    "RUF001",
+    "S101",
+    "S607",
+    "SIM108",
+    "SLF001",
+    "UP031",
+]
diff --git a/src/holocron/__init__.py b/src/holocron/__init__.py
index 9fbd23d..0551b94 100644
--- a/src/holocron/__init__.py
+++ b/src/holocron/__init__.py
@@ -2,4 +2,4 @@
 
 from ._core import Application, Item, WebSiteItem, create_app
 
-__all__ = ["Application", "create_app", "Item", "WebSiteItem"]
+__all__ = ["Application", "Item", "WebSiteItem", "create_app"]
diff --git a/src/holocron/__main__.py b/src/holocron/__main__.py
index 4411e2a..fb2d600 100644
--- a/src/holocron/__main__.py
+++ b/src/holocron/__main__.py
@@ -19,9 +19,8 @@
 
 def create_app_from_yml(path):
     """Return an application instance created from YAML."""
-
     try:
-        with open(path, "rt", encoding="UTF-8") as f:
+        with open(path, encoding="UTF-8") as f:
             try:
                 # Substitute ALL occurrences of '%(here)s' with a path to a
                 # directory with '.holocron.yml'. Please note, we also want
@@ -34,9 +33,7 @@ def create_app_from_yml(path):
 
                 conf = yaml.safe_load(interpolated)
             except yaml.YAMLError as exc:
-                raise RuntimeError(
-                    "Cannot parse a configuration file. Context: " + str(exc)
-                )
+                raise RuntimeError("Cannot parse a configuration file. Context: " + str(exc))
 
     except FileNotFoundError:
         conf = {"metadata": None, "pipes": {}}
@@ -46,8 +43,7 @@ def create_app_from_yml(path):
 
 @contextlib.contextmanager
 def configure_logger(level):
-    """
-    Configure a root logger to print records in pretty format.
+    """Configure a root logger to print records in pretty format.
 
     The format is more readable for end users, since it's not necessary at
     all to know a record's dateime and a source of the record.
@@ -63,7 +59,7 @@ def configure_logger(level):
 
     class _PendingHandler(logging.handlers.MemoryHandler):
         def __init__(self, target):
-            return super(_PendingHandler, self).__init__(capacity=-1, target=target)
+            super().__init__(capacity=-1, target=target)
 
         def shouldFlush(self, record):
             return False
@@ -71,7 +67,7 @@ def shouldFlush(self, record):
     class _Formatter(logging.Formatter):
         def format(self, record):
             record.levelname = record.levelname[:4]
-            return super(_Formatter, self).format(record)
+            return super().format(record)
 
     # create stream handler with custom formatter
     stream_handler = logging.StreamHandler()
@@ -90,8 +86,7 @@ def format(self, record):
 
 
 def parse_command_line(args):
-    """
-    Builds a command line interface, and parses its arguments. Returns
+    """Builds a command line interface, and parses its arguments. Returns
     an object with attributes, that are represent CLI arguments.
 
     :param args: a list of command line arguments
diff --git a/src/holocron/_core/__init__.py b/src/holocron/_core/__init__.py
index 82d1728..7fa5fda 100644
--- a/src/holocron/_core/__init__.py
+++ b/src/holocron/_core/__init__.py
@@ -4,4 +4,4 @@
 from .factories import create_app
 from .items import Item, WebSiteItem
 
-__all__ = ["Application", "create_app", "Item", "WebSiteItem"]
+__all__ = ["Application", "Item", "WebSiteItem", "create_app"]
diff --git a/src/holocron/_core/application.py b/src/holocron/_core/application.py
index 7b0b8c3..9b5b590 100644
--- a/src/holocron/_core/application.py
+++ b/src/holocron/_core/application.py
@@ -3,7 +3,7 @@
 import collections
 import logging
 
-from .._processors import _misc
+from holocron._processors import _misc
 
 _logger = logging.getLogger("holocron")
 
@@ -55,7 +55,8 @@ def add_processor(self, name, processor):
 
     def add_processor_wrapper(self, name, processor):
         if name in self._processor_reserved_props:
-            raise ValueError(f"illegal wrapper name: {name}")
+            msg = f"illegal wrapper name: {name}"
+            raise ValueError(msg)
 
         self.add_processor(name, processor)
         self._processor_wrappers.add(name)
@@ -73,7 +74,8 @@ def invoke(self, pipe, stream=None):
         # from some processor.
         if isinstance(pipe, str):
             if pipe not in self._pipes:
-                raise ValueError(f"no such pipe: '{pipe}'")
+                msg = f"no such pipe: '{pipe}'"
+                raise ValueError(msg)
             pipe = self._pipes[pipe]
 
         # Since processors expect an input stream to be an iterator, we cast a
@@ -87,16 +89,15 @@ def invoke(self, pipe, stream=None):
             # parameters. Please note, we're doing this so late because we
             # want to take into account metadata and other changes produced
             # by previous processors in the pipe.
-            processor = _misc.resolve_json_references(
-                processor, {"metadata:": self.metadata}
-            )
+            processor = _misc.resolve_json_references(processor, {"metadata:": self.metadata})
 
             name, args, kwargs = _unpack_and_wrap_processor(
                 processor, self._processor_reserved_props
             )
 
             if name not in self._processors:
-                raise ValueError(f"no such processor: '{name}'")
+                msg = f"no such processor: '{name}'"
+                raise ValueError(msg)
 
             processfn = self._processors[name]
             stream = processfn(self, stream, *args, **kwargs)
@@ -123,15 +124,12 @@ def _unpack_and_wrap_processor(processor, processor_reserved_props):
     processor. So this function naturally wraps `commonmark` and so we
     effectively resolve syntax sugar.
     """
-
     processor_name = processor["name"]
     processor_args = []
     processor_kwrs = {}
     processor_opts = processor.get("args", {})
 
-    wrapper_name = next(
-        (k for k in processor if k not in processor_reserved_props), None
-    )
+    wrapper_name = next((k for k in processor if k not in processor_reserved_props), None)
 
     if wrapper_name:
         processor_name = wrapper_name
diff --git a/src/holocron/_core/factories.py b/src/holocron/_core/factories.py
index 73d8f43..848da2e 100644
--- a/src/holocron/_core/factories.py
+++ b/src/holocron/_core/factories.py
@@ -1,12 +1,12 @@
 """Factory functions to create core instances."""
 
-from .._processors import import_processors, when
+from holocron._processors import import_processors, when
+
 from . import Application
 
 
 def create_app(metadata, processors=None, pipes=None):
     """Return an application instance with processors & pipes setup."""
-
     instance = Application(metadata)
 
     # In order to avoid code duplication, we use existing built-in import
diff --git a/src/holocron/_core/items.py b/src/holocron/_core/items.py
index bd92e80..e7f5b30 100644
--- a/src/holocron/_core/items.py
+++ b/src/holocron/_core/items.py
@@ -16,7 +16,8 @@ def __init__(self, *mappings, **properties):
         # behaviour. Anyway, passing more than one mapping to '__init__' is
         # senseless and confusing.
         if len(mappings) > 1:
-            raise TypeError("expected at most 1 argument, got 2")
+            msg = "expected at most 1 argument, got 2"
+            raise TypeError(msg)
 
         for mapping in itertools.chain(mappings, (properties,)):
             self._mapping.update(mapping)
@@ -64,9 +65,7 @@ def as_mapping(self):
                 key: value.__get__(self)
                 for key, value in vars(self.__class__).items()
                 if not key.startswith("_")
-                and (
-                    inspect.isdatadescriptor(value) or inspect.ismethoddescriptor(value)
-                )
+                and (inspect.isdatadescriptor(value) or inspect.ismethoddescriptor(value))
             },
             **self._mapping,
         )
@@ -76,14 +75,14 @@ class WebSiteItem(Item):
     """Pipeline item wrapper for a static web site."""
 
     def __init__(self, *mappings, **properties):
-        super(WebSiteItem, self).__init__(*mappings, **properties)
+        super().__init__(*mappings, **properties)
 
         missing = {"destination", "baseurl"} - self.keys()
         if missing:
-            raise TypeError(
-                "WebSiteItem is missing some required properties: %s"
-                % ", ".join(("'%s'" % prop for prop in sorted(missing)))
+            msg = "WebSiteItem is missing some required properties: {}".format(
+                ", ".join(f"'{prop}'" for prop in sorted(missing))
             )
+            raise TypeError(msg)
 
     @property
     def url(self):
diff --git a/src/holocron/_processors/chain.py b/src/holocron/_processors/chain.py
index 830ad3a..eb60733 100644
--- a/src/holocron/_processors/chain.py
+++ b/src/holocron/_processors/chain.py
@@ -18,7 +18,8 @@
 )
 def process(app, stream, *, order_by=None, direction=None):
     if direction and not order_by:
-        raise ValueError("'direction' cannot be set without 'order_by'")
+        msg = "'direction' cannot be set without 'order_by'"
+        raise ValueError(msg)
 
     if order_by:
         # WARNING: Sorting the stream requires evaluating all items from the
diff --git a/src/holocron/_processors/commonmark.py b/src/holocron/_processors/commonmark.py
index cb4b107..ff6ce3e 100644
--- a/src/holocron/_processors/commonmark.py
+++ b/src/holocron/_processors/commonmark.py
@@ -3,7 +3,6 @@
 import json
 import logging
 import subprocess
-import typing as t
 
 import markdown_it
 import markdown_it.renderer
@@ -40,7 +39,7 @@ def fence(self, tokens, idx, options, env) -> str:
         return super().fence(tokens, idx, options, env)
 
 
-def _exec_pipe(args: t.List[str], input_: t.ByteString, timeout: int = 1000) -> bytes:
+def _exec_pipe(args: list[str], input_: bytes, timeout: int = 1000) -> bytes:
     try:
         completed_process = subprocess.run(
             args,
diff --git a/src/holocron/_processors/feed.py b/src/holocron/_processors/feed.py
index 97011b5..a0e3578 100644
--- a/src/holocron/_processors/feed.py
+++ b/src/holocron/_processors/feed.py
@@ -55,19 +55,15 @@ def _resolvefeed(name):
         return resolve_json_references(feed.get(name), {"feed:": feed})
 
     def _resolveitem(name, streamitem):
-        return resolve_json_references(
-            item.get(name), {"item:": streamitem, "feed:": feed}
-        )
+        return resolve_json_references(item.get(name), {"item:": streamitem, "feed:": feed})
 
     feed_generator = feedgen.feed.FeedGenerator()
 
-    if any((key.startswith("itunes_") for key in feed)):
+    if any(key.startswith("itunes_") for key in feed):
         feed_generator.load_extension("podcast")
         feed_generator.podcast.itunes_author(_resolvefeed("itunes_author"))
         feed_generator.podcast.itunes_block(_resolvefeed("itunes_block"))
-        feed_generator.podcast.itunes_category(
-            _resolvefeed("itunes_category"), replace=True
-        )
+        feed_generator.podcast.itunes_category(_resolvefeed("itunes_category"), replace=True)
         feed_generator.podcast.itunes_image(_resolvefeed("itunes_image"))
         feed_generator.podcast.itunes_explicit(_resolvefeed("itunes_explicit"))
         feed_generator.podcast.itunes_complete(_resolvefeed("itunes_complete"))
@@ -125,25 +121,15 @@ def _resolveitem(name, streamitem):
             feed_entry.podcast.itunes_author(_resolveitem("itunes_author", streamitem))
             feed_entry.podcast.itunes_block(_resolveitem("itunes_block", streamitem))
             feed_entry.podcast.itunes_image(_resolveitem("itunes_image", streamitem))
-            feed_entry.podcast.itunes_duration(
-                _resolveitem("itunes_duration", streamitem)
-            )
-            feed_entry.podcast.itunes_duration(
-                _resolveitem("itunes_duration", streamitem)
-            )
-            feed_entry.podcast.itunes_explicit(
-                _resolveitem("itunes_explicit", streamitem)
-            )
+            feed_entry.podcast.itunes_duration(_resolveitem("itunes_duration", streamitem))
+            feed_entry.podcast.itunes_duration(_resolveitem("itunes_duration", streamitem))
+            feed_entry.podcast.itunes_explicit(_resolveitem("itunes_explicit", streamitem))
             feed_entry.podcast.itunes_is_closed_captioned(
                 _resolveitem("itunes_is_closed_captioned", streamitem)
             )
             feed_entry.podcast.itunes_order(_resolveitem("itunes_order", streamitem))
-            feed_entry.podcast.itunes_subtitle(
-                _resolveitem("itunes_subtitle", streamitem)
-            )
-            feed_entry.podcast.itunes_summary(
-                _resolveitem("itunes_summary", streamitem)
-            )
+            feed_entry.podcast.itunes_subtitle(_resolveitem("itunes_subtitle", streamitem))
+            feed_entry.podcast.itunes_summary(_resolveitem("itunes_summary", streamitem))
 
     to_bytes = {"atom": feed_generator.atom_str, "rss": feed_generator.rss_str}
     to_bytes = to_bytes[syndication_format]
diff --git a/src/holocron/_processors/frontmatter.py b/src/holocron/_processors/frontmatter.py
index 77c79d4..562648f 100644
--- a/src/holocron/_processors/frontmatter.py
+++ b/src/holocron/_processors/frontmatter.py
@@ -48,10 +48,8 @@ def process(app, stream, *, format="yaml", delimiter=None, overwrite=True):
             frontmatter = loader(match.group("frontmatter"))
 
             if not isinstance(frontmatter, collections.abc.Mapping):
-                raise ValueError(
-                    "Frontmatter must be a mapping (i.e. key-value pairs), "
-                    "not arrays."
-                )
+                msg = "Frontmatter must be a mapping (i.e. key-value pairs), " "not arrays."
+                raise ValueError(msg)
 
             for key, value in frontmatter.items():
                 if overwrite or key not in item:
diff --git a/src/holocron/_processors/jinja2/__init__.py b/src/holocron/_processors/jinja2/__init__.py
index 0056447..b13fc4a 100644
--- a/src/holocron/_processors/jinja2/__init__.py
+++ b/src/holocron/_processors/jinja2/__init__.py
@@ -33,10 +33,7 @@ def process(app, stream, *, template="item.j2", context=None, themes=None):
 
     env = jinja2.Environment(
         loader=jinja2.ChoiceLoader(
-            [
-                jinja2.FileSystemLoader(str(pathlib.Path(theme, "templates")))
-                for theme in themes
-            ]
+            [jinja2.FileSystemLoader(str(pathlib.Path(theme, "templates"))) for theme in themes]
         ),
         trim_blocks=True,
         lstrip_blocks=True,
diff --git a/src/holocron/_processors/restructuredtext.py b/src/holocron/_processors/restructuredtext.py
index 4461456..cb0b6df 100644
--- a/src/holocron/_processors/restructuredtext.py
+++ b/src/holocron/_processors/restructuredtext.py
@@ -48,9 +48,7 @@ def process(app, stream, *, settings=None):
         # translator to fit our needs.
         writer.translator_class = _HTMLTranslator
 
-        parts = publish_parts(
-            item["content"], writer=writer, settings_overrides=settings
-        )
+        parts = publish_parts(item["content"], writer=writer, settings_overrides=settings)
 
         item["content"] = parts["fragment"].strip()
         item["destination"] = item["destination"].with_suffix(".html")
diff --git a/src/holocron/_processors/sitemap.py b/src/holocron/_processors/sitemap.py
index 9b286a2..969bb1c 100644
--- a/src/holocron/_processors/sitemap.py
+++ b/src/holocron/_processors/sitemap.py
@@ -59,12 +59,13 @@ def _create_sitemap_xml(stream, sitemap, pretty):
 
     for item in stream:
         if not item["absurl"].startswith(owned_url):
-            raise ValueError(
+            msg = (
                 f"The location of a Sitemap file determines the set of URLs "
                 f"that can be included in that Sitemap. A Sitemap file located "
                 f"at {sitemap['absurl']} can include any URLs starting with "
                 f"{owned_url} but can not include {item['absurl']}."
             )
+            raise ValueError(msg)
 
         url = dom.createElement("url")
         loc = dom.createElement("loc")
diff --git a/src/holocron/_processors/source.py b/src/holocron/_processors/source.py
index 90501d8..7d28421 100644
--- a/src/holocron/_processors/source.py
+++ b/src/holocron/_processors/source.py
@@ -47,9 +47,7 @@ def _finditems(app, path, pattern, encoding, tzinfo):
             if pattern and not re_name.match(str(source)):
                 continue
 
-            yield _createitem(
-                app, root / filename, source, encoding=encoding, tzinfo=tzinfo
-            )
+            yield _createitem(app, root / filename, source, encoding=encoding, tzinfo=tzinfo)
 
 
 @parameters(
diff --git a/src/holocron/_processors/when.py b/src/holocron/_processors/when.py
index 120571a..c8e8b4b 100644
--- a/src/holocron/_processors/when.py
+++ b/src/holocron/_processors/when.py
@@ -62,7 +62,8 @@ def process(app, stream, processor, *_condition, condition=None):
     condition = _condition or condition
 
     if not condition:
-        raise TypeError("missing argument or value: 'condition'")
+        msg = "missing argument or value: 'condition'"
+        raise TypeError(msg)
 
     def smartstream():
         for item in stream:
diff --git a/tests/_core/test_application.py b/tests/_core/test_application.py
index bd2d415..7b76154 100644
--- a/tests/_core/test_application.py
+++ b/tests/_core/test_application.py
@@ -135,7 +135,7 @@ def processor_wrapper_b(app, items, processor):
     assert caplog.records[0].message == "processor override: 'wrapper'"
 
 
-@pytest.mark.parametrize(["wrapper_name"], [pytest.param("name"), pytest.param("args")])
+@pytest.mark.parametrize("wrapper_name", [pytest.param("name"), pytest.param("args")])
 def test_add_processor_wrapper_illegal_name(caplog, wrapper_name):
     """.add_processor_wrapper() raises on illegal name."""
 
@@ -364,7 +364,7 @@ def processor(app, items):
 
 
 @pytest.mark.parametrize(
-    ["processor_args"],
+    "processor_args",
     [
         pytest.param({"a": 1}, id="int"),
         pytest.param({"b": 1.13}, id="float"),
@@ -388,7 +388,7 @@ def processor(app, items, **args):
 
 
 @pytest.mark.parametrize(
-    ["processor_args", "resolved"],
+    ("processor_args", "resolved"),
     [
         pytest.param(
             {"a": {"$ref": "metadata://#/is_yoda_master"}},
@@ -418,9 +418,7 @@ def processor(app, items, **args):
 def test_invoke_resolves_jsonref(processor_args, resolved):
     """.invoke() resolves JSON references in processor's arguments."""
 
-    testapp = holocron.Application(
-        {"extra": [{"luke": "skywalker"}], "is_yoda_master": True}
-    )
+    testapp = holocron.Application({"extra": [{"luke": "skywalker"}], "is_yoda_master": True})
 
     def processor(app, items, **args):
         assert args == resolved
@@ -437,7 +435,8 @@ def test_invoke_processor_errors():
     """.invoke() raises proper exception."""
 
     def processor(app, documents):
-        raise ValueError("something bad happened")
+        msg = "something bad happened"
+        raise ValueError(msg)
         yield
 
     testapp = holocron.Application()
diff --git a/tests/_core/test_items.py b/tests/_core/test_items.py
index b575db5..b6d471f 100644
--- a/tests/_core/test_items.py
+++ b/tests/_core/test_items.py
@@ -8,7 +8,6 @@
 
 
 @pytest.fixture(
-    scope="function",
     params=[
         pytest.param(42, id="int-value"),
         pytest.param("key", id="str-value"),
@@ -27,7 +26,7 @@ def supported_value(request):
     return request.param
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def item_descriptors_cls():
     class methoddescriptor:
         def __init__(self, wrapped):
@@ -327,12 +326,11 @@ def test_websiteitem_init_multiple_mappings(supported_value):
 
 
 @pytest.mark.parametrize(
-    ["properties", "error"],
+    ("properties", "error"),
     [
         pytest.param(
             {},
-            "WebSiteItem is missing some required properties: "
-            "'baseurl', 'destination'",
+            "WebSiteItem is missing some required properties: " "'baseurl', 'destination'",
             id="baseurl",
         ),
         pytest.param(
@@ -529,7 +527,7 @@ def test_websiteitem_contains():
 
 
 @pytest.mark.parametrize(
-    ["destination", "url"],
+    ("destination", "url"),
     [
         pytest.param(pathlib.Path("path-to-item"), "/path-to-item", id="flat"),
         pytest.param(pathlib.Path("path", "to", "item"), "/path/to/item", id="nested"),
@@ -541,15 +539,13 @@ def test_websiteitem_contains():
 def test_websiteitem_url(destination, url):
     """'url' property is based on 'destination'."""
 
-    instance = holocron.WebSiteItem(
-        {"destination": destination, "baseurl": "https://yoda.ua"}
-    )
+    instance = holocron.WebSiteItem({"destination": destination, "baseurl": "https://yoda.ua"})
 
     assert instance["url"] == url
 
 
 @pytest.mark.parametrize(
-    ["properties", "absurl"],
+    ("properties", "absurl"),
     [
         pytest.param(
             {
diff --git a/tests/_processors/test_archive.py b/tests/_processors/test_archive.py
index edd1581..b76bc85 100644
--- a/tests/_processors/test_archive.py
+++ b/tests/_processors/test_archive.py
@@ -10,7 +10,7 @@
 from holocron._processors import archive
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
@@ -18,9 +18,7 @@ def testapp():
 def test_item(testapp):
     """Archive processor has to work!"""
 
-    stream = archive.process(
-        testapp, [holocron.Item({"title": "The Force", "content": "Obi-Wan"})]
-    )
+    stream = archive.process(testapp, [holocron.Item({"title": "The Force", "content": "Obi-Wan"})])
 
     assert isinstance(stream, collections.abc.Iterable)
     assert list(stream) == [
@@ -38,7 +36,7 @@ def test_item(testapp):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -58,10 +56,7 @@ def test_item_many(testapp, amount):
     assert isinstance(stream, collections.abc.Iterable)
     assert list(stream) == list(
         itertools.chain(
-            [
-                holocron.Item({"title": "The Force (part #%d)" % i})
-                for i in range(amount)
-            ],
+            [holocron.Item({"title": "The Force (part #%d)" % i}) for i in range(amount)],
             [
                 holocron.WebSiteItem(
                     {
@@ -105,7 +100,7 @@ def test_args_template(testapp):
 
 
 @pytest.mark.parametrize(
-    ["save_as"],
+    "save_as",
     [
         pytest.param(pathlib.Path("posts", "skywalker.luke"), id="deep"),
         pytest.param(pathlib.Path("yoda.jedi"), id="flat"),
@@ -136,7 +131,7 @@ def test_args_save_as(testapp, save_as):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"save_as": 42},
diff --git a/tests/_processors/test_chain.py b/tests/_processors/test_chain.py
index 88aab79..9f5fb6c 100644
--- a/tests/_processors/test_chain.py
+++ b/tests/_processors/test_chain.py
@@ -8,7 +8,7 @@
 from holocron._processors import chain
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -16,9 +16,7 @@ def testapp():
 def test_one_item(testapp):
     """Chain processor has to work with one item!"""
 
-    stream = chain.process(
-        testapp, [holocron.Item({"title": "The Force", "content": "Obi-Wan"})]
-    )
+    stream = chain.process(testapp, [holocron.Item({"title": "The Force", "content": "Obi-Wan"})])
 
     assert isinstance(stream, collections.abc.Iterable)
     assert list(stream) == [holocron.Item({"title": "The Force", "content": "Obi-Wan"})]
@@ -165,7 +163,7 @@ def test_args_direction(testapp):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"order_by": 42},
diff --git a/tests/_processors/test_commonmark.py b/tests/_processors/test_commonmark.py
index 4296d4f..d491b3a 100644
--- a/tests/_processors/test_commonmark.py
+++ b/tests/_processors/test_commonmark.py
@@ -24,7 +24,7 @@ def __repr__(self):
         return self._regex.pattern
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
@@ -62,7 +62,7 @@ def test_item(testapp):
 
 
 @pytest.mark.parametrize(
-    ["content"],
+    "content",
     [
         pytest.param(
             textwrap.dedent(
@@ -267,7 +267,7 @@ def test_item_infer_title_with_sections(testapp):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -305,7 +305,7 @@ def test_item_many(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["rendered", "pygmentize"],
+    ("rendered", "pygmentize"),
     [
         pytest.param(
             (
@@ -367,7 +367,7 @@ def test_args_pygmentize(testapp, rendered, pygmentize):
     ]
 
 
-@pytest.mark.parametrize(["language"], [pytest.param("yoda"), pytest.param("vader")])
+@pytest.mark.parametrize("language", [pytest.param("yoda"), pytest.param("vader")])
 def test_args_pygmentize_unknown_language(testapp, language):
     """Commonmark has to assume text/plain for unknown languages."""
 
@@ -620,7 +620,7 @@ def test_args_definition(testapp):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"pygmentize": 42},
diff --git a/tests/_processors/test_feed.py b/tests/_processors/test_feed.py
index 619e936..daafc22 100644
--- a/tests/_processors/test_feed.py
+++ b/tests/_processors/test_feed.py
@@ -16,7 +16,7 @@
 _HOLOCRON_VERSION = importlib.metadata.version("holocron")
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
@@ -437,11 +437,9 @@ def test_item_rss_feed_metadata(testapp):
     assert parsed.rss.channel.item.itunes_summary == "berry"
 
 
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
 @pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -505,10 +503,8 @@ def test_item_many(testapp, syndication_format, amount):
     )
 
 
-@pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding(testapp, syndication_format, encoding):
     """Feed processor has to respect encoding argument."""
 
@@ -547,10 +543,8 @@ def test_args_encoding(testapp, syndication_format, encoding):
     assert untangle.parse(items[-1]["content"].decode(encoding))
 
 
-@pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding_fallback(testapp, syndication_format, encoding):
     """Feed processor has to respect encoding argument (fallback)."""
 
@@ -590,11 +584,9 @@ def test_args_encoding_fallback(testapp, syndication_format, encoding):
     assert untangle.parse(items[-1]["content"].decode(encoding))
 
 
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
 @pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(
-    ["save_as"],
+    "save_as",
     [
         pytest.param(pathlib.Path("foo.xml")),
         pytest.param(pathlib.Path("foo", "bar.xml")),
@@ -647,10 +639,8 @@ def test_args_save_as(testapp, syndication_format, save_as):
     ]
 
 
-@pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(["limit"], [pytest.param(2), pytest.param(5)])
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
+@pytest.mark.parametrize("limit", [pytest.param(2), pytest.param(5)])
 def test_args_limit(testapp, syndication_format, limit):
     """Feed processor has to respect limit argument."""
 
@@ -716,20 +706,15 @@ def test_args_limit(testapp, syndication_format, limit):
     assert len(items) == limit
 
     for i, item in enumerate(items):
-        if syndication_format == "atom":
-            content = item.content
-        else:
-            content = item.description
+        content = item.content if syndication_format == "atom" else item.description
 
         assert item.title == "Day 1"
         assert content == "the way of the Force, part %d" % (9 - i)
 
 
+@pytest.mark.parametrize("syndication_format", [pytest.param("atom"), pytest.param("rss")])
 @pytest.mark.parametrize(
-    ["syndication_format"], [pytest.param("atom"), pytest.param("rss")]
-)
-@pytest.mark.parametrize(
-    ["pretty", "check_fn"],
+    ("pretty", "check_fn"),
     [
         pytest.param(False, lambda x: x == 2, id="no"),
         pytest.param(True, lambda x: x > 10, id="yes"),
@@ -785,7 +770,7 @@ def test_args_pretty(testapp, syndication_format, pretty, check_fn):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"encoding": "UTF-42"},
diff --git a/tests/_processors/test_frontmatter.py b/tests/_processors/test_frontmatter.py
index 70faa9b..ccaa6e5 100644
--- a/tests/_processors/test_frontmatter.py
+++ b/tests/_processors/test_frontmatter.py
@@ -10,7 +10,7 @@
 from holocron._processors import frontmatter
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -327,7 +327,7 @@ def test_item_yaml_exploit(testapp):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -373,7 +373,7 @@ def test_item_many(testapp, amount):
     ]
 
 
-@pytest.mark.parametrize(["delimiter"], [pytest.param("+++"), pytest.param("***")])
+@pytest.mark.parametrize("delimiter", [pytest.param("+++"), pytest.param("***")])
 def test_args_delimiter(testapp, delimiter):
     """Frontmatter processor has to respect 'delimiter' argument."""
 
@@ -411,7 +411,7 @@ def test_args_delimiter(testapp, delimiter):
     ]
 
 
-@pytest.mark.parametrize(["overwrite"], [pytest.param(False), pytest.param(True)])
+@pytest.mark.parametrize("overwrite", [pytest.param(False), pytest.param(True)])
 def test_args_overwrite(testapp, overwrite):
     """Frontmatter processor has to respect 'overwrite' argument."""
 
@@ -451,7 +451,7 @@ def test_args_overwrite(testapp, overwrite):
 
 
 @pytest.mark.parametrize(
-    ["frontsnippet", "format", "exception"],
+    ("frontsnippet", "format", "exception"),
     [
         pytest.param(
             """\
@@ -486,9 +486,7 @@ def test_args_overwrite(testapp, overwrite):
             ---
             """.rstrip(),
             "yaml",
-            ValueError(
-                "Frontmatter must be a mapping (i.e. key-value pairs), not arrays."
-            ),
+            ValueError("Frontmatter must be a mapping (i.e. key-value pairs), not arrays."),
             id="toml-yaml",
         ),
     ],
@@ -536,7 +534,7 @@ def test_args_format(testapp, frontsnippet, format, exception):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"delimiter": 42},
diff --git a/tests/_processors/test_import_processors.py b/tests/_processors/test_import_processors.py
index 1955349..625fb1d 100644
--- a/tests/_processors/test_import_processors.py
+++ b/tests/_processors/test_import_processors.py
@@ -9,12 +9,12 @@
 from holocron._processors import import_processors
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp(request):
     return holocron.Application()
 
 
-@pytest.fixture(scope="function", params=["process", "invoke"])
+@pytest.fixture(params=["process", "invoke"])
 def runprocessor(testapp, request):
     """Run the processor directly and as a part of anonymous pipe."""
 
@@ -66,7 +66,7 @@ def run(app, items):
 
 
 @pytest.mark.parametrize(
-    ["processors", "imports", "registered"],
+    ("processors", "imports", "registered"),
     [
         pytest.param([], [], [], id="no-imports"),
         pytest.param(
@@ -95,9 +95,7 @@ def run(app, items):
         ),
     ],
 )
-def test_imports_args_from(
-    testapp, runprocessor, tmpdir, processors, imports, registered
-):
+def test_imports_args_from(testapp, runprocessor, tmpdir, processors, imports, registered):
     """Imports must work from 3rd party directory."""
 
     for processor in processors:
@@ -120,7 +118,7 @@ def process(app, items):
 
 
 @pytest.mark.parametrize(
-    ["imports", "registered"],
+    ("imports", "registered"),
     [
         pytest.param([], [], id="no-imports"),
         pytest.param(["yoda = os.path:join"], ["yoda"], id="yoda-imports-yoda"),
@@ -175,16 +173,14 @@ def run(app, items):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"imports": 42},
             "imports: 42 is not of type 'array'",
             id="imports-int",
         ),
-        pytest.param(
-            {"from_": 42}, "from_: 42 is not of type 'string'", id="from_-int"
-        ),
+        pytest.param({"from_": 42}, "from_: 42 is not of type 'string'", id="from_-int"),
     ],
 )
 def test_args_bad_value(testapp, args, error):
diff --git a/tests/_processors/test_jinja2.py b/tests/_processors/test_jinja2.py
index c351020..eede65c 100644
--- a/tests/_processors/test_jinja2.py
+++ b/tests/_processors/test_jinja2.py
@@ -12,7 +12,7 @@
 from holocron._processors import jinja2
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
@@ -92,7 +92,7 @@ def test_item_template(testapp, tmpdir):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -121,12 +121,7 @@ def test_item_many(testapp, tmpdir, amount):
 
     assert (
         items[:amount]
-        == [
-            holocron.Item(
-                {"title": "History of the Force", "content": unittest.mock.ANY}
-            )
-        ]
-        * amount
+        == [holocron.Item({"title": "History of the Force", "content": unittest.mock.ANY})] * amount
     )
 
     for i, item in enumerate(items[:amount]):
@@ -280,7 +275,7 @@ def test_args_themes_two_themes(testapp, tmpdir):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"template": 42},
diff --git a/tests/_processors/test_markdown.py b/tests/_processors/test_markdown.py
index 7ba5b90..7df4bbb 100644
--- a/tests/_processors/test_markdown.py
+++ b/tests/_processors/test_markdown.py
@@ -25,7 +25,7 @@ def __repr__(self):
         return self._regex.pattern
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -435,7 +435,7 @@ def test_item_with_inline_code(testapp):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -473,12 +473,11 @@ def test_item_many(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["extensions", "rendered"],
+    ("extensions", "rendered"),
     [
         pytest.param(
             {},
-            r"<p>test codeblock</p>\s*"
-            r"<pre><code>:::\s*lambda x: pass\s*</code></pre>",
+            r"<p>test codeblock</p>\s*" r"<pre><code>:::\s*lambda x: pass\s*</code></pre>",
             id="no",
         ),
         pytest.param(
@@ -523,7 +522,7 @@ def test_args_extensions(testapp, extensions, rendered):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"extensions": 42},
diff --git a/tests/_processors/test_metadata.py b/tests/_processors/test_metadata.py
index 167921a..39126fc 100644
--- a/tests/_processors/test_metadata.py
+++ b/tests/_processors/test_metadata.py
@@ -8,7 +8,7 @@
 from holocron._processors import metadata
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -37,13 +37,11 @@ def test_item_untouched(testapp):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"content": "the Force", "author": "skywalker"})
-    ]
+    assert list(stream) == [holocron.Item({"content": "the Force", "author": "skywalker"})]
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -57,10 +55,7 @@ def test_item_many(testapp, amount):
 
     stream = metadata.process(
         testapp,
-        [
-            holocron.Item({"content": "the key is #%d" % i, "author": "luke"})
-            for i in range(amount)
-        ],
+        [holocron.Item({"content": "the key is #%d" % i, "author": "luke"}) for i in range(amount)],
         metadata={"author": "yoda", "type": "memoire"},
     )
 
@@ -78,7 +73,7 @@ def test_item_many(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["overwrite", "author"],
+    ("overwrite", "author"),
     [
         pytest.param(True, "yoda", id="overwrite"),
         pytest.param(False, "skywalker", id="not-overwrite"),
@@ -101,7 +96,7 @@ def test_args_overwrite(testapp, overwrite, author):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"metadata": 42},
diff --git a/tests/_processors/test_pipe.py b/tests/_processors/test_pipe.py
index 6b1eded..bbee05b 100644
--- a/tests/_processors/test_pipe.py
+++ b/tests/_processors/test_pipe.py
@@ -8,7 +8,7 @@
 from holocron._processors import pipe
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     def spam(app, items, **args):
         for item in items:
@@ -78,13 +78,11 @@ def test_args_pipeline_empty(testapp):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"content": "the Force", "author": "skywalker"})
-    ]
+    assert list(stream) == [holocron.Item({"content": "the Force", "author": "skywalker"})]
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -119,7 +117,7 @@ def test_item_many(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [pytest.param({"pipe": 42}, "pipe: 42 is not of type 'array'", id="pipe-int")],
 )
 def test_args_bad_value(testapp, args, error):
diff --git a/tests/_processors/test_prettyuri.py b/tests/_processors/test_prettyuri.py
index e7898ae..23d645a 100644
--- a/tests/_processors/test_prettyuri.py
+++ b/tests/_processors/test_prettyuri.py
@@ -9,7 +9,7 @@
 from holocron._processors import prettyuri
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -28,9 +28,7 @@ def test_item(testapp):
     ]
 
 
-@pytest.mark.parametrize(
-    ["index"], [pytest.param("index.html"), pytest.param("index.htm")]
-)
+@pytest.mark.parametrize("index", [pytest.param("index.html"), pytest.param("index.htm")])
 def test_item_index(testapp, index):
     """Prettyuri processor has to ignore index items."""
 
@@ -40,13 +38,11 @@ def test_item_index(testapp, index):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"destination": pathlib.Path("about", "cv", index)})
-    ]
+    assert list(stream) == [holocron.Item({"destination": pathlib.Path("about", "cv", index)})]
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
diff --git a/tests/_processors/test_restructuredtext.py b/tests/_processors/test_restructuredtext.py
index ef73972..c78f005 100644
--- a/tests/_processors/test_restructuredtext.py
+++ b/tests/_processors/test_restructuredtext.py
@@ -24,7 +24,7 @@ def __repr__(self):
         return self._regex.pattern
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
@@ -321,7 +321,7 @@ def test_args_settings(testapp):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -359,7 +359,7 @@ def test_item_many(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"settings": 42},
diff --git a/tests/_processors/test_save.py b/tests/_processors/test_save.py
index ab8d76b..e45a1ec 100644
--- a/tests/_processors/test_save.py
+++ b/tests/_processors/test_save.py
@@ -10,7 +10,7 @@
 from holocron._processors import save
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp(request):
     return holocron.Application()
 
@@ -33,7 +33,7 @@ def test_item(testapp, monkeypatch, tmpdir):
 
 
 @pytest.mark.parametrize(
-    ["data", "loader"],
+    ("data", "loader"),
     [
         pytest.param("text", py.path.local.read, id="text"),
         pytest.param(b"\xf1", py.path.local.read_binary, id="binary"),
@@ -50,14 +50,12 @@ def test_item_content_types(testapp, monkeypatch, tmpdir, data, loader):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"content": data, "destination": pathlib.Path("1.dat")})
-    ]
+    assert list(stream) == [holocron.Item({"content": data, "destination": pathlib.Path("1.dat")})]
     assert loader(tmpdir.join("_site", "1.dat")) == data
 
 
 @pytest.mark.parametrize(
-    ["destination"],
+    "destination",
     [
         pytest.param(pathlib.Path("1.txt"), id="deep-0"),
         pytest.param(pathlib.Path("a", "2.txt"), id="deep-1"),
@@ -76,14 +74,12 @@ def test_item_destination(testapp, monkeypatch, tmpdir, destination):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"content": "Obi-Wan", "destination": destination})
-    ]
+    assert list(stream) == [holocron.Item({"content": "Obi-Wan", "destination": destination})]
     assert tmpdir.join("_site", destination).read_text("UTF-8") == "Obi-Wan"
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -115,7 +111,7 @@ def test_item_many(testapp, monkeypatch, tmpdir, amount):
         assert tmpdir.join("_site", str(i)).read_text("UTF-8") == "Obi-Wan"
 
 
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding(testapp, monkeypatch, tmpdir, encoding):
     """Save processor has to respect 'encoding' argument."""
 
@@ -134,7 +130,7 @@ def test_args_encoding(testapp, monkeypatch, tmpdir, encoding):
     assert tmpdir.join("_site", "1.html").read_text(encoding) == "Обі-Ван"
 
 
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding_fallback(testapp, monkeypatch, tmpdir, encoding):
     """Save processor has to respect 'encoding' argument (fallback)."""
 
@@ -153,7 +149,7 @@ def test_args_encoding_fallback(testapp, monkeypatch, tmpdir, encoding):
     assert tmpdir.join("_site", "1.html").read_text(encoding) == "Обі-Ван"
 
 
-@pytest.mark.parametrize(["to"], [pytest.param("_build"), pytest.param("_public")])
+@pytest.mark.parametrize("to", [pytest.param("_build"), pytest.param("_public")])
 def test_args_to(testapp, monkeypatch, tmpdir, to):
     """Save processor has to respect 'to' argument."""
 
@@ -173,7 +169,7 @@ def test_args_to(testapp, monkeypatch, tmpdir, to):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param({"to": 42}, "to: 42 is not of type 'string'", id="to-int"),
         pytest.param({"to": [42]}, "to: [42] is not of type 'string'", id="to-list"),
diff --git a/tests/_processors/test_sitemap.py b/tests/_processors/test_sitemap.py
index 9062346..23ed671 100644
--- a/tests/_processors/test_sitemap.py
+++ b/tests/_processors/test_sitemap.py
@@ -32,13 +32,13 @@ def __repr__(self):
         return self._expected
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
 
 @pytest.mark.parametrize(
-    ["filename", "escaped"],
+    ("filename", "escaped"),
     [
         pytest.param("s.html", "s.html"),
         pytest.param("ы.html", "%D1%8B.html"),
@@ -97,7 +97,7 @@ def test_item(testapp, filename, escaped):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [pytest.param(1), pytest.param(2), pytest.param(5), pytest.param(10)],
 )
 def test_item_many(testapp, amount):
@@ -139,9 +139,7 @@ def test_item_many(testapp, amount):
                         "content": _pytest_xmlasdict(
                             {
                                 "urlset": {
-                                    "@xmlns": (
-                                        "http://www.sitemaps.org/schemas/sitemap/0.9"
-                                    ),
+                                    "@xmlns": ("http://www.sitemaps.org/schemas/sitemap/0.9"),
                                     "url": [
                                         {
                                             "loc": "https://yoda.ua/%d" % i,
@@ -173,11 +171,7 @@ def test_item_many_zero(testapp):
                 "source": pathlib.Path("sitemap://sitemap.xml"),
                 "destination": pathlib.Path("sitemap.xml"),
                 "content": _pytest_xmlasdict(
-                    {
-                        "urlset": {
-                            "@xmlns": "http://www.sitemaps.org/schemas/sitemap/0.9"
-                        }
-                    }
+                    {"urlset": {"@xmlns": "http://www.sitemaps.org/schemas/sitemap/0.9"}}
                 ),
                 "baseurl": testapp.metadata["url"],
             }
@@ -235,7 +229,7 @@ def test_args_gzip(testapp):
 
 
 @pytest.mark.parametrize(
-    ["save_as"],
+    "save_as",
     [
         pytest.param(pathlib.Path("posts", "skywalker.luke"), id="deep"),
         pytest.param(pathlib.Path("yoda.jedi"), id="flat"),
@@ -280,13 +274,11 @@ def test_args_save_as(testapp, save_as):
 
 
 @pytest.mark.parametrize(
-    ["document_path", "sitemap_path"],
+    ("document_path", "sitemap_path"),
     [
         pytest.param(pathlib.Path("1.html"), pathlib.Path("b", "sitemap.xml")),
         pytest.param(pathlib.Path("a", "1.html"), pathlib.Path("b", "sitemap.xml")),
-        pytest.param(
-            pathlib.Path("a", "1.html"), pathlib.Path("a", "c", "sitemap.xml")
-        ),
+        pytest.param(pathlib.Path("a", "1.html"), pathlib.Path("a", "c", "sitemap.xml")),
         pytest.param(pathlib.Path("ab", "1.html"), pathlib.Path("a", "sitemap.xml")),
     ],
 )
@@ -321,9 +313,7 @@ def test_args_save_as_unsupported(testapp, document_path, sitemap_path):
     )
 
 
-@pytest.mark.parametrize(
-    ["pretty", "lines"], [pytest.param(False, 1), pytest.param(True, 7)]
-)
+@pytest.mark.parametrize(("pretty", "lines"), [pytest.param(False, 1), pytest.param(True, 7)])
 def test_args_pretty(testapp, pretty, lines):
     """Sitemap processor has to respect pretty argument."""
 
@@ -366,7 +356,7 @@ def test_args_pretty(testapp, pretty, lines):
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"gzip": "true"},
diff --git a/tests/_processors/test_source.py b/tests/_processors/test_source.py
index 38e0cd3..46b228e 100644
--- a/tests/_processors/test_source.py
+++ b/tests/_processors/test_source.py
@@ -24,13 +24,13 @@ def __repr__(self):
         return self._timestamp
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application({"url": "https://yoda.ua"})
 
 
 @pytest.mark.parametrize(
-    ["path"],
+    "path",
     [
         pytest.param(["about", "luke", "cv.pdf"], id="deep-subdir"),
         pytest.param(["about", "cv.pdf"], id="subdir"),
@@ -61,7 +61,7 @@ def test_item(testapp, monkeypatch, tmpdir, path):
     ]
 
 
-@pytest.mark.parametrize(["data"], [pytest.param("text"), pytest.param(b"\xf1")])
+@pytest.mark.parametrize("data", [pytest.param("text"), pytest.param(b"\xf1")])
 def test_item_content_types(testapp, monkeypatch, tmpdir, data):
     """Source processor has to properly read items" content."""
 
@@ -114,7 +114,7 @@ def test_item_empty(testapp, monkeypatch, tmpdir):
 
 
 @pytest.mark.parametrize(
-    ["discovered"],
+    "discovered",
     [
         pytest.param(0),
         pytest.param(1),
@@ -124,7 +124,7 @@ def test_item_empty(testapp, monkeypatch, tmpdir):
     ],
 )
 @pytest.mark.parametrize(
-    ["passed"],
+    "passed",
     [
         pytest.param(0),
         pytest.param(1),
@@ -149,9 +149,7 @@ def test_item_many(testapp, monkeypatch, tmpdir, discovered, passed):
     assert isinstance(stream, collections.abc.Iterable)
 
     items = list(stream)
-    assert items[:passed] == [
-        holocron.Item({"marker": "the key is %d" % i}) for i in range(passed)
-    ]
+    assert items[:passed] == [holocron.Item({"marker": "the key is %d" % i}) for i in range(passed)]
 
     # Since we don"t know in which order items are discovered, we sort them so
     # we can avoid possible flakes of the test.
@@ -171,7 +169,7 @@ def test_item_many(testapp, monkeypatch, tmpdir, discovered, passed):
 
 
 @pytest.mark.parametrize(
-    ["path"],
+    "path",
     [
         pytest.param(["a"]),
         pytest.param(["a", "b"]),
@@ -193,12 +191,8 @@ def test_args_path(testapp, monkeypatch, tmpdir, path):
                 "source": pathlib.Path("test"),
                 "destination": pathlib.Path("test"),
                 "content": "Obi-Wan",
-                "created": _pytest_timestamp(
-                    tmpdir.join(*path).join("test").stat().ctime
-                ),
-                "updated": _pytest_timestamp(
-                    tmpdir.join(*path).join("test").stat().mtime
-                ),
+                "created": _pytest_timestamp(tmpdir.join(*path).join("test").stat().ctime),
+                "updated": _pytest_timestamp(tmpdir.join(*path).join("test").stat().mtime),
                 "baseurl": testapp.metadata["url"],
             }
         )
@@ -244,7 +238,7 @@ def test_args_pattern(testapp, monkeypatch, tmpdir):
     ]
 
 
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding(testapp, monkeypatch, tmpdir, encoding):
     """Source processor has to respect encoding argument."""
 
@@ -268,7 +262,7 @@ def test_args_encoding(testapp, monkeypatch, tmpdir, encoding):
     ]
 
 
-@pytest.mark.parametrize(["encoding"], [pytest.param("CP1251"), pytest.param("UTF-16")])
+@pytest.mark.parametrize("encoding", [pytest.param("CP1251"), pytest.param("UTF-16")])
 def test_args_encoding_fallback(testapp, monkeypatch, tmpdir, encoding):
     """Source processor has to respect encoding argument (fallback)."""
 
@@ -294,7 +288,7 @@ def test_args_encoding_fallback(testapp, monkeypatch, tmpdir, encoding):
 
 
 @pytest.mark.parametrize(
-    ["timezone", "tznames"],
+    ("timezone", "tznames"),
     [
         pytest.param("UTC", ["UTC"]),
         pytest.param("Europe/Kiev", ["EET", "EEST"]),
@@ -320,7 +314,7 @@ def test_args_timezone(testapp, monkeypatch, tmpdir, timezone, tznames):
 
 
 @pytest.mark.parametrize(
-    ["tz", "tznames"],
+    ("tz", "tznames"),
     [
         pytest.param("UTC", ["UTC"]),
         pytest.param("Europe/Kiev", ["EET", "EEST"]),
@@ -367,15 +361,13 @@ def test_args_timezone_in_action(testapp, monkeypatch, tmpdir):
     created_utc = items_utc[0]["created"]
     created_kie = items_kie[0]["created"]
 
-    assert created_kie.tzinfo.utcoffset(created_kie) >= created_utc.tzinfo.utcoffset(
-        created_utc
-    )
+    assert created_kie.tzinfo.utcoffset(created_kie) >= created_utc.tzinfo.utcoffset(created_utc)
     assert created_kie.isoformat() > created_utc.isoformat()
     assert created_kie.isoformat().split("+")[-1] in ("02:00", "03:00")
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param({"path": 42}, "path: 42 is not of type 'string'", id="path-int"),
         pytest.param(
diff --git a/tests/_processors/test_todatetime.py b/tests/_processors/test_todatetime.py
index fdde85d..e6d769c 100644
--- a/tests/_processors/test_todatetime.py
+++ b/tests/_processors/test_todatetime.py
@@ -14,13 +14,13 @@
 _TZ_EET = dateutil.tz.gettz("EET")
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp():
     return holocron.Application()
 
 
 @pytest.mark.parametrize(
-    ["timestamp", "parsed"],
+    ("timestamp", "parsed"),
     [
         pytest.param(
             "2019-01-15T21:07:07+00:00",
@@ -128,7 +128,7 @@ def test_item(testapp, timestamp, parsed):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -176,9 +176,7 @@ def test_item_timestamp_missing(testapp):
     )
 
     assert isinstance(stream, collections.abc.Iterable)
-    assert list(stream) == [
-        holocron.Item({"content": "the Force is strong with this one"})
-    ]
+    assert list(stream) == [holocron.Item({"content": "the Force is strong with this one"})]
 
 
 def test_item_timestamp_bad_value(testapp):
@@ -205,7 +203,7 @@ def test_item_timestamp_bad_value(testapp):
 
 
 @pytest.mark.parametrize(
-    ["timestamp"],
+    "timestamp",
     [
         pytest.param("2019-01-11", id="str"),
         pytest.param(pathlib.Path("2019-01-11"), id="path"),
@@ -240,7 +238,7 @@ def test_args_todatetime(testapp, timestamp):
 
 
 @pytest.mark.parametrize(
-    ["timestamp", "parsearea"],
+    ("timestamp", "parsearea"),
     [
         pytest.param("2019/01/11/luke-skywalker-part-1.txt", r"\d{4}/\d{2}/\d{2}"),
         pytest.param("2019-01-11-luke-skywalker-part-1.txt", r"\d{4}-\d{2}-\d{2}"),
@@ -306,7 +304,7 @@ def test_args_parsearea_not_found(testapp):
 
 
 @pytest.mark.parametrize(
-    ["timestamp"],
+    "timestamp",
     [
         pytest.param("2019/01/11/luke-skywalker.txt"),
         pytest.param("2019/01/11/luke-skywalker/index.txt"),
@@ -348,7 +346,7 @@ def test_args_fuzzy(testapp, timestamp):
     ]
 
 
-@pytest.mark.parametrize(["tz"], [pytest.param("EET"), pytest.param("UTC")])
+@pytest.mark.parametrize("tz", [pytest.param("EET"), pytest.param("UTC")])
 def test_args_timezone(testapp, tz):
     """Todatetime processor has to respect "timezone" argument."""
 
@@ -386,15 +384,13 @@ def test_args_timezone(testapp, tz):
         holocron.Item(
             {
                 "content": "may the Force be with you",
-                "timestamp": datetime.datetime(
-                    2019, 1, 15, 21, 7, tzinfo=dateutil.tz.gettz(tz)
-                ),
+                "timestamp": datetime.datetime(2019, 1, 15, 21, 7, tzinfo=dateutil.tz.gettz(tz)),
             }
         ),
     ]
 
 
-@pytest.mark.parametrize(["tz"], [pytest.param("EET"), pytest.param("UTC")])
+@pytest.mark.parametrize("tz", [pytest.param("EET"), pytest.param("UTC")])
 def test_args_timezone_fallback(testapp, tz):
     """Todatetime processor has to respect "timezone" argument (fallback)."""
 
@@ -433,16 +429,14 @@ def test_args_timezone_fallback(testapp, tz):
         holocron.Item(
             {
                 "content": "may the Force be with you",
-                "timestamp": datetime.datetime(
-                    2019, 1, 15, 21, 7, tzinfo=dateutil.tz.gettz(tz)
-                ),
+                "timestamp": datetime.datetime(2019, 1, 15, 21, 7, tzinfo=dateutil.tz.gettz(tz)),
             }
         ),
     ]
 
 
 @pytest.mark.parametrize(
-    ["args", "error"],
+    ("args", "error"),
     [
         pytest.param(
             {"todatetime": 42},
@@ -459,9 +453,7 @@ def test_args_timezone_fallback(testapp, tz):
             "timezone: 'Europe/Kharkiv' is not a 'timezone'",
             id="timezone-wrong",
         ),
-        pytest.param(
-            {"fuzzy": 42}, "fuzzy: 42 is not of type 'boolean'", id="fuzzy-int"
-        ),
+        pytest.param({"fuzzy": 42}, "fuzzy: 42 is not of type 'boolean'", id="fuzzy-int"),
     ],
 )
 def test_args_bad_value(testapp, args, error):
diff --git a/tests/_processors/test_when.py b/tests/_processors/test_when.py
index 1eb6baa..7a1fc32 100644
--- a/tests/_processors/test_when.py
+++ b/tests/_processors/test_when.py
@@ -10,7 +10,7 @@
 from holocron._processors import when
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def testapp(request):
     def spam(app, items, *, text=42):
         for item in items:
@@ -39,7 +39,7 @@ def eggs(app, items):
 
 
 @pytest.mark.parametrize(
-    ["cond", "item"],
+    ("cond", "item"),
     [
         pytest.param(
             "item.author == 'yoda'",
@@ -68,7 +68,7 @@ def test_item_spam(testapp, cond, item):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -97,7 +97,7 @@ def test_item_many_spam(testapp, amount):
 
 
 @pytest.mark.parametrize(
-    ["amount"],
+    "amount",
     [
         pytest.param(0),
         pytest.param(1),
@@ -119,10 +119,7 @@ def test_item_many_rice(testapp, amount):
     assert isinstance(stream, collections.abc.Iterable)
     assert list(stream) == list(
         itertools.chain(
-            [
-                holocron.Item({"content": "the great jedi", "key": i})
-                for i in range(amount)
-            ],
+            [holocron.Item({"content": "the great jedi", "key": i}) for i in range(amount)],
             [holocron.Item({"content": "rice"})],
         )
     )
@@ -148,7 +145,7 @@ def test_item_many_eggs(testapp):
 
 
 @pytest.mark.parametrize(
-    ["cond"],
+    "cond",
     [
         pytest.param([r"item.author == 'yoda'"], id="=="),
         pytest.param([r"item.source.suffix == '.md'"], id="endswith"),
@@ -194,7 +191,7 @@ def test_args_condition(testapp, cond):
 
 
 @pytest.mark.parametrize(
-    ["cond"],
+    "cond",
     [
         pytest.param([r"item.author == 'yoda'"], id="=="),
         pytest.param([r"item.source.suffix == '.md'"], id="endswith"),
diff --git a/tests/test_main.py b/tests/test_main.py
index 248ecda..dc050f3 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -5,8 +5,8 @@
 import subprocess
 import sys
 import textwrap
+from unittest import mock
 
-import mock
 import pytest
 import yaml
 
@@ -18,7 +18,7 @@ def _fake_root_logger(monkeypatch):
     monkeypatch.setattr(logging, "root", logging.getLogger("fakeroot"))
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def create_site(tmpdir):
     def create(structure):
         for path, content in structure:
@@ -27,7 +27,7 @@ def create(structure):
     return create
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def example_site(create_site):
     holocron_yml = yaml.safe_dump(
         {
@@ -51,7 +51,7 @@ def example_site(create_site):
     )
 
 
-@pytest.fixture(scope="function")
+@pytest.fixture
 def execute(capsys):
     def execute(args, *, as_subprocess=True):
         if as_subprocess: