feat(notion-writer): dialect->Notion enhanced markdown translator

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

custom-skills/32-notion-writer/code/scripts/test_md_translate.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+"""Tests for md_translate.py — run with `python test_md_translate.py`."""
+
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).parent))
+
+import md_translate
+
+
+def test_passthrough_basics():
+    src = "# Heading\n\n- item\n\n```python\nx=1\n```"
+    assert md_translate.translate(src) == src
+
+
+def test_callout_note():
+    out = md_translate.translate("> [!NOTE]\n> Be careful")
+    assert '<callout icon="ℹ️" color="blue_bg">' in out
+    assert "\tBe careful" in out
+    assert "</callout>" in out
+
+
+def test_callout_warning_color():
+    out = md_translate.translate("> [!WARNING]\n> Danger")
+    assert 'color="yellow_bg"' in out
+    assert 'icon="⚠️"' in out
+
+
+def test_columns():
+    src = "::: columns\n::: column\nLeft\n:::\n::: column\nRight\n:::\n:::"
+    out = md_translate.translate(src)
+    assert "<columns>" in out
+    assert out.count("<column>") == 2
+    assert "</columns>" in out
+    assert "\tLeft" in out or "\t\tLeft" in out
+
+
+def test_toggle_children_indented():
+    src = "<details>\n<summary>More</summary>\nBody line\n</details>"
+    out = md_translate.translate(src)
+    assert "<summary>More</summary>" in out
+    assert "\tBody line" in out
+
+
+def test_mention_url():
+    out = md_translate.translate(
+        "See @[ADR](https://notion.so/X-abcdef0123456789abcdef0123456789).")
+    assert "<mention-page url=" in out
+    assert ">ADR</mention-page>" in out
+
+
+def test_mention_invalid_plain():
+    out = md_translate.translate("ping @[Bob](not-an-id)")
+    assert "@Bob" in out
+    assert "mention-page" not in out
+
+
+def run_all():
+    tests = [
+        test_passthrough_basics,
+        test_callout_note,
+        test_callout_warning_color,
+        test_columns,
+        test_toggle_children_indented,
+        test_mention_url,
+        test_mention_invalid_plain,
+    ]
+    for t in tests:
+        print(f"\n{t.__name__}")
+        t()
+    print("\n" + "=" * 50)
+    print(f"✅ All {len(tests)} tests passed")
+    print("=" * 50)
+
+
+if __name__ == "__main__":
+    run_all()