[#21] Added unit tests for basic utility functions.

tests/test_utilities.py

@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+
+"""Tests for pdfdesigner.utilities"""
+
+import pytest
+from pdfdesigner import utilities
+
+def test_is_numeric():
+    assert utilities.is_numeric(1) is True
+    assert utilities.is_numeric('alamakota') is False
+    assert utilities.is_numeric(True) is True
+    assert utilities.is_numeric([1, 2, 3]) is False
+
+
+def test_is_string():
+    assert utilities.is_string(1) is False
+    assert utilities.is_string('alamakota') is True
+    assert utilities.is_string(True) is False
+    assert utilities.is_string(u'this-is-unicode') is True
+
+
+def test_is_iterable():
+    assert utilities.is_iterable(1) is False
+    assert utilities.is_iterable('alamakota') is True
+    assert utilities.is_iterable(True) is False
+    assert utilities.is_iterable([1, 2, 3]) is True
+    assert utilities.is_iterable({'test': 1, 'test2': 2}) is True
+    assert utilities.is_iterable((1, 2)) is True
+
+
+def test_get_indexes(iterable):
+    iterable = ['test1', 'test2', 'test3', 'test2']
+    expected_result = [1, 3]
+    result = utilities.get_indexes(iterable, item = 'test2')
+    assert result == expected_result
+
+
+def test_remove_relative_item():
+    iterable = ['test1', 'test2', 'test3', 'test2', 'test2']
+    expected_result = ['test1', 'test2', 'test3', 'test2']
+
+    result = utilities.remove_relative_item(iterable,
+                                            relative_position = 1,
+                                            item = 'test2')
+
+    assert result == expected_result