From d5957754fc4a2718595752062e71bc93ccd8deb9 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Mon, 16 Mar 2026 13:59:11 +0000
Subject: [PATCH] Add scheduling_analysis/tests/test_core.py

---
 scheduling_analysis/tests/test_core.py | 46 ++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 scheduling_analysis/tests/test_core.py

diff --git a/scheduling_analysis/tests/test_core.py b/scheduling_analysis/tests/test_core.py
new file mode 100644
index 0000000..1d18df2
--- /dev/null
+++ b/scheduling_analysis/tests/test_core.py
@@ -0,0 +1,46 @@
+import pytest
+import pandas as pd
+from scheduling_analysis import core
+
+@pytest.fixture
+def sample_data():
+    return [
+        {"run_id": "r1", "metric_name": "max_outlier_ms", "metric_value": 10.0, "mechanism": "sched_a"},
+        {"run_id": "r2", "metric_name": "max_outlier_ms", "metric_value": 25.0, "mechanism": "sched_b"},
+        {"run_id": "r1", "metric_name": "band_width_h", "metric_value": 5.0, "mechanism": "sched_a"},
+        {"run_id": "r2", "metric_name": "band_width_h", "metric_value": 7.5, "mechanism": "sched_b"}
+    ]
+
+
+def test_analyze_scheduling_effects_basic(sample_data):
+    result = core.analyze_scheduling_effects(sample_data)
+    assert isinstance(result, dict)
+    assert set(result.keys()) == {"max_outlier_effect", "resonance_band_shift", "metrics"}
+
+    # numerical plausibility
+    assert isinstance(result["max_outlier_effect"], float)
+    assert isinstance(result["resonance_band_shift"], float)
+    assert abs(result["max_outlier_effect"] - 15.0) < 1e-6
+    assert abs(result["resonance_band_shift"] - 2.5) < 1e-6
+
+
+def test_empty_data_raises():
+    with pytest.raises(ValueError):
+        core.analyze_scheduling_effects([])
+
+
+def test_invalid_data_type():
+    # Not a list should raise a TypeError
+    with pytest.raises(TypeError):
+        core.analyze_scheduling_effects("invalid")
+
+
+def test_partial_metrics_present():
+    data = [
+        {"run_id": "r1", "metric_name": "max_outlier_ms", "metric_value": 10.0, "mechanism": "sched_a"},
+        {"run_id": "r1", "metric_name": "band_width_h", "metric_value": 5.0, "mechanism": "sched_a"}
+    ]
+    result = core.analyze_scheduling_effects(data)
+    assert result["max_outlier_effect"] == pytest.approx(0.0)
+    assert result["resonance_band_shift"] == pytest.approx(0.0)
+    assert isinstance(result["metrics"], dict)
\ No newline at end of file