Add CI pipeline for variant 5

tests/test_math_tools.py

@@ -0,0 +1,21 @@
+import pytest
+
+from ci_lab.math_tools import average, is_even, median
+
+
+def test_average_returns_arithmetic_mean() -> None:
+    assert average([2, 4, 6, 8]) == 5
+
+def test_average_raises_error_for_empty_list() -> None:
+    with pytest.raises(ValueError, match="numbers must not be empty"):
+        average([])
+
+def test_median_for_odd_count() -> None:
+    assert median([5, 1, 9]) == 5
+
+def test_median_for_even_count() -> None:
+    assert median([10, 2, 8, 4]) == 6
+
+def test_is_even() -> None:
+    assert is_even(10) is True
+    assert is_even(7) is False

tests/test_text_tools.py

@@ -0,0 +1,14 @@
+from ci_lab.text_tools import normalize_text, unique_words, word_count
+
+
+def test_normalize_text_removes_extra_spaces_and_lowers_case() -> None:
+    assert normalize_text("  Hello   WORLD  ") == "hello world"
+
+def test_word_count_counts_words() -> None:
+    assert word_count("Python CI with GitHub Actions") == 5
+
+def test_word_count_returns_zero_for_empty_text() -> None:
+    assert word_count("   ") == 0
+
+def test_unique_words_returns_only_unique_values() -> None:
+    assert unique_words("Python python CI") == {"python", "ci"}