feat(analysis): _expected_ticks per finestre */15 allineate

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-12 22:32:12 +00:00
parent 07a8bbf5c8
commit 35ac92e938
2 changed files with 54 additions and 0 deletions
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+"""Unit tests for analysis.data_audit."""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+from cerbero_bite.analysis.data_audit import _expected_ticks  # noqa: PLC2701
+
+
+def test_expected_ticks_basic() -> None:
+    since = datetime(2026, 5, 12, 12, 0, tzinfo=UTC)
+    until = datetime(2026, 5, 12, 13, 0, tzinfo=UTC)
+    # 12:00, 12:15, 12:30, 12:45 → 4 ticks before 13:00
+    assert _expected_ticks(since, until) == 4
+
+
+def test_expected_ticks_inclusive_left_exclusive_right() -> None:
+    since = datetime(2026, 5, 12, 12, 0, tzinfo=UTC)
+    until = datetime(2026, 5, 12, 12, 15, tzinfo=UTC)
+    # Only 12:00
+    assert _expected_ticks(since, until) == 1
+
+
+def test_expected_ticks_unaligned_since_rounds_up() -> None:
+    since = datetime(2026, 5, 12, 12, 7, tzinfo=UTC)
+    until = datetime(2026, 5, 12, 12, 30, tzinfo=UTC)
+    # First aligned tick after 12:07 is 12:15, then 12:30 is excluded
+    assert _expected_ticks(since, until) == 1