Add temperature_data_analysis/tests/test_core.py

temperature_data_analysis/tests/test_core.py

@@ -0,0 +1,43 @@
+import pytest
+from temperature_data_analysis import core
+
+
+def test_analyze_temperature_data_basic():
+    data = [20.0, 22.0, 24.0, 26.0]
+    result = core.analyze_temperature_data(data)
+    expected_mean = 23.0
+    expected_variance = pytest.approx(6.6667, rel=1e-3)
+
+    assert isinstance(result, dict)
+    assert result['mean_temperature'] == pytest.approx(expected_mean)
+    assert result['temperature_variance'] == expected_variance
+
+
+def test_analyze_temperature_data_single_value():
+    data = [25.5]
+    result = core.analyze_temperature_data(data)
+    assert result['mean_temperature'] == 25.5
+    assert result['temperature_variance'] == 0.0
+
+
+def test_analyze_temperature_data_invalid_input_type():
+    with pytest.raises((TypeError, ValueError)):
+        core.analyze_temperature_data(["a", "b", "c"])
+
+
+def test_analyze_temperature_data_empty_list():
+    with pytest.raises(ValueError):
+        core.analyze_temperature_data([])
+
+
+def test_analysisresult_structure():
+    result_obj = core.AnalysisResult(mean_temperature=21.5, temperature_variance=1.2)
+    assert result_obj.mean_temperature == 21.5
+    assert result_obj.temperature_variance == 1.2
+
+    # to_dict behavior
+    result_dict = result_obj.__dict__
+    assert 'mean_temperature' in result_dict
+    assert 'temperature_variance' in result_dict
+    assert result_dict['mean_temperature'] == 21.5
+    assert result_dict['temperature_variance'] == 1.2