feat(thinking): Phases 1-2 complete - parser, model, tests

tests/test_thinking_gui.py

@@ -0,0 +1,52 @@
+import pytest
+from src.gui_2 import App
+
+
+def test_render_thinking_trace_helper_exists():
+    assert hasattr(App, "_render_thinking_trace"), (
+        "_render_thinking_trace helper should exist in App class"
+    )
+
+
+def test_discussion_entry_with_thinking_segments():
+    entry = {
+        "role": "AI",
+        "content": "Here's my response",
+        "thinking_segments": [
+            {"content": "Let me analyze this step by step...", "marker": "thinking"},
+            {"content": "I should consider edge cases...", "marker": "thought"},
+        ],
+        "ts": "2026-03-13T10:00:00",
+        "collapsed": False,
+    }
+    assert "thinking_segments" in entry
+    assert len(entry["thinking_segments"]) == 2
+
+
+def test_discussion_entry_without_thinking():
+    entry = {
+        "role": "User",
+        "content": "Hello",
+        "ts": "2026-03-13T10:00:00",
+        "collapsed": False,
+    }
+    assert "thinking_segments" not in entry
+
+
+def test_thinking_segment_model_compatibility():
+    from src.models import ThinkingSegment
+
+    segment = ThinkingSegment(content="test", marker="thinking")
+    assert segment.content == "test"
+    assert segment.marker == "thinking"
+    d = segment.to_dict()
+    assert d["content"] == "test"
+    assert d["marker"] == "thinking"
+
+
+if __name__ == "__main__":
+    test_render_thinking_trace_helper_exists()
+    test_discussion_entry_with_thinking_segments()
+    test_discussion_entry_without_thinking()
+    test_thinking_segment_model_compatibility()
+    print("All GUI thinking trace tests passed!")