Squash Odysseus development history

tests/test_strip_think.py

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+import pytest
+from src.text_helpers import strip_think
+
+def test_strip_think_cases():
+    # 1. Mid-text unclosed leak (fails before fix)
+    assert strip_think("Hello! <think> I am thinking.") == "Hello!"
+    assert strip_think("Sure.\n<think>\nLet me reconsider...") == "Sure."
+    assert strip_think("Sure.\n<thinking>\nLet me reconsider...") == "Sure."
+
+    # 2. Start-anchored unclosed
+    assert strip_think("<think> unclosed from start") == ""
+    assert strip_think("   <thinking> thinking at start") == ""
+
+    # 3. Closed block
+    assert strip_think("Hello! <think> closed </think> Here is the answer.") == "Hello! Here is the answer."
+    assert strip_think("Hello! <thinking> closed </thinking> Here is the answer.") == "Hello! Here is the answer."
+
+    # 4. No-tag passthrough
+    assert strip_think("No tags here.") == "No tags here."
+
+    # 5. Content-before-opener preserved (part of mid-text unclosed)
+    assert strip_think("Prefix text <think> trailing thoughts") == "Prefix text"
+    
+    # 6. Multiple blocks (closed + unclosed)
+    assert strip_think("Hello! <think> closed </think> Here is the answer. <think> unclosed") == "Hello! Here is the answer."
+
+
+def test_strip_think_handles_thought_tags():
+    assert strip_think("<thought>internal reasoning</thought>Final answer.") == "Final answer."
+
+
+def test_strip_think_handles_gemma4_thought_channel():
+    text = "<|channel>thought\ninternal reasoning<channel|>Final answer."
+    assert strip_think(text) == "Final answer."
+
+
+def test_strip_think_handles_empty_gemma4_thought_channel():
+    text = "<|channel>thought\n<channel|>Final answer."
+    assert strip_think(text) == "Final answer."
+
+
+def test_strip_think_unwraps_gemma4_response_channel():
+    text = "<|channel>thought\ninternal reasoning<channel|><|channel>response\nFinal answer.<channel|>"
+    assert strip_think(text) == "Final answer."