extension for ref resolve, explode, implode, weave, tangle

tests/test_explode_implode.py

@@ -0,0 +1,93 @@
+from pathlib import Path
+
+import pytest
+from click.testing import CliRunner
+
+from markitect_tool.cli import main
+from markitect_tool.explode import (
+    EXPLODE_MANIFEST_NAME,
+    ExplodeError,
+    explode_markdown_file,
+    implode_markdown_directory,
+)
+
+
+ROUNDTRIP_DOC = """---
+title: Explode Example
+---
+
+Opening text before the first heading.
+
+# Intro
+
+Intro body.
+
+## Detail
+
+Detail body.
+
+# Later
+
+Later body.
+"""
+
+
+def test_flat_explode_implode_roundtrips_exact_markdown(tmp_path: Path):
+    source = tmp_path / "source.md"
+    output_dir = tmp_path / "exploded"
+    source.write_text(ROUNDTRIP_DOC, encoding="utf-8")
+
+    result = explode_markdown_file(source, output_dir, variant="flat")
+    imploded = implode_markdown_directory(output_dir)
+
+    assert Path(result.manifest_path).name == EXPLODE_MANIFEST_NAME
+    assert (output_dir / "00-preamble.md").exists()
+    assert (output_dir / "sections" / "01-intro.md").exists()
+    assert imploded.markdown == ROUNDTRIP_DOC
+    assert imploded.current_hash == result.manifest.source_hash
+
+
+def test_hierarchical_explode_places_child_sections_under_parent(tmp_path: Path):
+    source = tmp_path / "source.md"
+    output_dir = tmp_path / "exploded"
+    source.write_text(ROUNDTRIP_DOC, encoding="utf-8")
+
+    result = explode_markdown_file(source, output_dir, variant="hierarchical")
+
+    files = {Path(path).relative_to(output_dir).as_posix() for path in result.written_files}
+    assert "01-intro.md" in files
+    assert "01-intro/02-detail.md" in files
+    assert implode_markdown_directory(output_dir).markdown == ROUNDTRIP_DOC
+
+
+def test_explode_rejects_non_empty_output_without_force(tmp_path: Path):
+    source = tmp_path / "source.md"
+    output_dir = tmp_path / "exploded"
+    output_dir.mkdir()
+    (output_dir / "existing.md").write_text("Existing", encoding="utf-8")
+    source.write_text(ROUNDTRIP_DOC, encoding="utf-8")
+
+    with pytest.raises(ExplodeError, match="not empty"):
+        explode_markdown_file(source, output_dir)
+
+
+def test_mkt_explode_and_implode(tmp_path: Path):
+    source = tmp_path / "source.md"
+    output_dir = tmp_path / "exploded"
+    rebuilt = tmp_path / "rebuilt.md"
+    source.write_text(ROUNDTRIP_DOC, encoding="utf-8")
+    runner = CliRunner()
+
+    explode_result = runner.invoke(
+        main,
+        ["explode", str(source), "--output-dir", str(output_dir), "--variant", "flat"],
+    )
+    implode_result = runner.invoke(
+        main,
+        ["implode", str(output_dir), "--output", str(rebuilt)],
+    )
+
+    assert explode_result.exit_code == 0
+    assert "entries: 4" in explode_result.output
+    assert implode_result.exit_code == 0
+    assert rebuilt.read_text(encoding="utf-8") == ROUNDTRIP_DOC