QA: Add basic tests.

Author: Gadgetoid

.gitignore

@@ -1,22 +1,20 @@
-__pycache__/
+build/
+_build/
+*.o
+*.so
+*.a
 *.py[cod]
+*.egg-info
 dist/
-sdist/
-env/
-build/
-develop-eggs/
-eggs/
-*.egg-info/
-.installed.cfg
-*.egg
+__pycache__
+.DS_Store
 *.deb
 *.dsc
 *.build
 *.changes
 *.orig.*
-library/debian/
 packaging/*tar.xz
-pip-log.txt
-pip-delete-this-directory.txt
-.DS_Store
-
+library/debian/
+.coverage
+.pytest_cache
+.tox

tests/conftest.py

@@ -0,0 +1,26 @@
+import sys
+
+import mock
+import pytest
+
+
+@pytest.fixture(scope="function", autouse=True)
+def cleanup():
+    yield
+    del sys.modules["cap1xxx"]
+
+
+@pytest.fixture(scope="function")
+def smbus2():
+    sys.modules["smbus2"] = mock.MagicMock()
+    yield sys.modules["smbus2"]
+    del sys.modules["smbus2"]
+
+
+@pytest.fixture(scope="function")
+def gpio():
+    sys.modules["RPi"] = mock.Mock()
+    sys.modules["RPi.GPIO"] = mock.MagicMock()
+    yield
+    del sys.modules["RPi"]
+    del sys.modules["RPi.GPIO"]

tests/test_setup.py

@@ -0,0 +1,26 @@
+import pytest
+
+
+def test_setup(gpio, smbus2):
+    import cap1xxx
+
+    smbus2.SMBus(1).read_byte_data.return_value = cap1xxx.PID_CAP1208
+    cap1208 = cap1xxx.Cap1208()
+    assert cap1208.number_of_leds == 8
+
+    smbus2.SMBus(1).read_byte_data.return_value = cap1xxx.PID_CAP1188
+    cap1188 = cap1xxx.Cap1188()
+    assert cap1188.number_of_leds == 8
+
+    smbus2.SMBus(1).read_byte_data.return_value = cap1xxx.PID_CAP1166
+    cap1166 = cap1xxx.Cap1166()
+    assert cap1166.number_of_leds == 6
+
+
+def test_setup_invalid_pid(gpio, smbus2):
+    import cap1xxx
+
+    smbus2.SMBus(1).read_byte_data.return_value = 0x00
+
+    with pytest.raises(RuntimeError):
+        _ = cap1xxx.Cap1208()