test: add token and api tests, expand metrics, email and task tests

Author: Nigma-Ks

backend/file_utils/tests/test_runstrat_metrics.py

@@ -2,7 +2,12 @@
 
 import pytest
 
-from backend.file_utils.runstrat_metrics import RunstratMetrics, compute_metrics
+from backend.file_utils.runstrat_metrics import (
+    RunstratMetrics,
+    combine_metrics,
+    compute_metrics,
+    merge_csvs,
+)
 
 FIELDNAMES = ["tests", "errors", "coverage", "total_time_sec"]
 
@@ -30,6 +35,7 @@ def test_compute_metrics_single_row(tmp_path):
         mean_coverage=0.75,
         median_coverage=0.75,
         total_time_sec=30.0,
+        methods_with_results=1,
     )
 
 
@@ -134,3 +140,113 @@ def test_compute_metrics_accepts_path_object(tmp_path):
     result = compute_metrics(filepath)
 
     assert result.total_tests == 1
+
+
+def test_compute_metrics_counts_methods_with_results(tmp_path):
+    filepath = write_metrics_csv(
+        tmp_path,
+        [
+            {"tests": 1, "errors": 0, "coverage": 0.1, "total_time_sec": 1.0},
+            {"tests": 2, "errors": 0, "coverage": 0.2, "total_time_sec": 1.0},
+            {"tests": 3, "errors": 0, "coverage": 0.3, "total_time_sec": 1.0},
+        ],
+    )
+
+    result = compute_metrics(filepath)
+
+    assert result.methods_with_results == 3
+
+
+def test_combine_metrics_aggregates_across_files(tmp_path):
+    csharp_dir = tmp_path / "csharp"
+    csharp_dir.mkdir()
+    java_dir = tmp_path / "java"
+    java_dir.mkdir()
+
+    file1 = write_metrics_csv(
+        csharp_dir,
+        [
+            {"tests": 5, "errors": 1, "coverage": 0.5, "total_time_sec": 10.0},
+            {"tests": 3, "errors": 0, "coverage": 0.7, "total_time_sec": 20.0},
+        ],
+    )
+    file2 = write_metrics_csv(
+        java_dir,
+        [
+            {"tests": 4, "errors": 2, "coverage": 0.9, "total_time_sec": 15.0},
+        ],
+    )
+
+    combined = combine_metrics([file1, file2])
+
+    assert combined.total_tests == 12
+    assert combined.total_errors == 3
+    assert combined.total_time_sec == pytest.approx(45.0)
+    assert combined.methods_with_results == 3
+    assert combined.mean_coverage == pytest.approx(0.7)
+    assert combined.median_coverage == pytest.approx(0.7)
+
+
+def test_combine_metrics_single_file_equals_compute_metrics(tmp_path):
+    filepath = write_metrics_csv(
+        tmp_path,
+        [
+            {"tests": 5, "errors": 1, "coverage": 0.5, "total_time_sec": 10.0},
+            {"tests": 3, "errors": 0, "coverage": 0.9, "total_time_sec": 20.0},
+        ],
+    )
+
+    assert combine_metrics([filepath]) == compute_metrics(filepath)
+
+
+def test_merge_csvs_preserves_header_and_rows(tmp_path):
+    src1 = tmp_path / "src1"
+    src1.mkdir()
+    src2 = tmp_path / "src2"
+    src2.mkdir()
+
+    file1 = write_metrics_csv(
+        src1,
+        [{"tests": 1, "errors": 0, "coverage": 0.5, "total_time_sec": 1.0}],
+    )
+    file2 = write_metrics_csv(
+        src2,
+        [
+            {"tests": 2, "errors": 1, "coverage": 0.6, "total_time_sec": 2.0},
+            {"tests": 3, "errors": 0, "coverage": 0.7, "total_time_sec": 3.0},
+        ],
+    )
+
+    dest = tmp_path / "merged.csv"
+    merge_csvs([file1, file2], dest)
+
+    with open(dest, newline="") as f:
+        reader = csv.DictReader(f)
+        assert list(reader.fieldnames or []) == FIELDNAMES
+        rows = list(reader)
+
+    assert len(rows) == 3
+    assert rows[0]["tests"] == "1"
+    assert rows[1]["tests"] == "2"
+    assert rows[2]["tests"] == "3"
+
+
+def test_merge_csvs_then_compute_matches_combine(tmp_path):
+    csharp_dir = tmp_path / "csharp"
+    csharp_dir.mkdir()
+    java_dir = tmp_path / "java"
+    java_dir.mkdir()
+
+    file1 = write_metrics_csv(
+        csharp_dir,
+        [{"tests": 5, "errors": 1, "coverage": 0.5, "total_time_sec": 10.0}],
+    )
+    file2 = write_metrics_csv(
+        java_dir,
+        [{"tests": 4, "errors": 2, "coverage": 0.9, "total_time_sec": 15.0}],
+    )
+    dest = tmp_path / "merged.csv"
+
+    merge_csvs([file1, file2], dest)
+
+    assert compute_metrics(dest) == combine_metrics([file1, file2])