Initial release: iai-mcp v0.1.0

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: XNLLLLH <XNLLLLH@users.noreply.github.com>

tests/test_trajectory_m6_live.py

@@ -0,0 +1,61 @@
+"""Plan 03-02 Task 2 Step 7: M6 context-repeat-rate LIVE tests."""
+from __future__ import annotations
+
+import pytest
+
+from iai_mcp.events import write_event
+from iai_mcp.store import MemoryStore
+from iai_mcp.trajectory import m6_context_repeat_rate_live
+
+
+def test_m6_zero_on_empty_store(tmp_path):
+    store = MemoryStore(path=tmp_path)
+    assert m6_context_repeat_rate_live(store) == 0.0
+
+
+def test_m6_repeat_rate_three_repeats_in_ten(tmp_path):
+    """10 sessions, 3 repeated hashes -> repeat rate 0.3.
+
+    Layout: 7 distinct hashes + 3 reuses of one prior hash.
+    total=10, unique=7, (10-7)/10 = 0.3.
+    """
+    store = MemoryStore(path=tmp_path)
+    distinct = [f"h{i}" for i in range(7)]
+    for h in distinct:
+        write_event(
+            store, kind="session_started",
+            data={"session_state_hash": h, "session_id": "s"},
+            severity="info",
+        )
+    # 3 reuses of "h0"
+    for _ in range(3):
+        write_event(
+            store, kind="session_started",
+            data={"session_state_hash": "h0", "session_id": "s"},
+            severity="info",
+        )
+    val = m6_context_repeat_rate_live(store)
+    assert val == pytest.approx(0.3, abs=1e-6)
+
+
+def test_m6_all_unique_returns_zero(tmp_path):
+    store = MemoryStore(path=tmp_path)
+    for i in range(5):
+        write_event(
+            store, kind="session_started",
+            data={"session_state_hash": f"u{i}"},
+            severity="info",
+        )
+    assert m6_context_repeat_rate_live(store) == 0.0
+
+
+def test_m6_all_repeats_returns_high(tmp_path):
+    store = MemoryStore(path=tmp_path)
+    for _ in range(5):
+        write_event(
+            store, kind="session_started",
+            data={"session_state_hash": "same"},
+            severity="info",
+        )
+    val = m6_context_repeat_rate_live(store)
+    assert val == pytest.approx(0.8, abs=1e-6)  # (5-1)/5