add missing test coverage for #1077 scope guard and markdown fence fixes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_languages.py

@@ -1110,6 +1110,45 @@ def test_js_local_const_does_not_emit_phantom_node(tmp_path):
     assert "exportedConst" in labels, f"exported const 'exportedConst' missing: {labels}"
 
 
+def test_js_module_level_arrow_produces_node_and_call_edges(tmp_path):
+    """Module-level arrow functions must still emit a node and capture their calls (#1077).
+
+    The scope guard must not accidentally suppress top-level arrow functions.
+    """
+    src = (
+        "function helper() { return 1; }\n"
+        "const handler = () => {\n"
+        "  helper();\n"
+        "};\n"
+    )
+    f = tmp_path / "arrows.js"
+    f.write_text(src)
+    r = extract_js(f)
+    labels = _labels(r)
+    relations = _relations(r)
+
+    assert any("handler" in l for l in labels), f"module-level arrow 'handler' missing: {labels}"
+    assert "calls" in relations, f"expected 'calls' edge from handler->helper: {relations}"
+
+
+def test_ts_local_const_does_not_emit_phantom_node(tmp_path):
+    """Scope guard applies to TypeScript files too (shared _js_extra_walk path)."""
+    src = (
+        "describe('suite', () => {\n"
+        "  const inner: Set<number> = new Set([1, 2]);\n"
+        "});\n"
+        "\n"
+        "export const topLevel = { a: 1 };\n"
+    )
+    f = tmp_path / "scope_guard.ts"
+    f.write_text(src)
+    r = extract_js(f)
+    labels = _labels(r)
+
+    assert "inner" not in labels, f"phantom TS node for arrow-body local 'inner': {labels}"
+    assert "topLevel" in labels, f"module-level TS const 'topLevel' missing: {labels}"
+
+
 # ── Markdown ─────────────────────────────────────────────────────────────────
 
 from graphify.extract import extract_markdown
@@ -1150,7 +1189,41 @@ def test_markdown_contains_edges():
     r = extract_markdown(FIXTURES / "deploy_guide.md")
     assert "contains" in _relations(r)
     contains_edges = [e for e in r["edges"] if e["relation"] == "contains"]
-    assert len(contains_edges) >= 4  # file->h1, h1->h2s, h2->h3
+    # deploy_guide.md has: file->h1, h1->h2(Prerequisites), h1->h2(Full Deploy),
+    # h2(Full Deploy)->h3(Database Migration), h1->h2(Rollback) = 5 edges
+    assert len(contains_edges) >= 5, f"expected >= 5 contains edges, got {len(contains_edges)}"
+
+
+def test_markdown_fenced_heading_not_parsed():
+    """A '## heading' inside a fenced block must not produce a heading node (#1077).
+
+    The fence-toggle skips over fenced contents so interior markdown syntax
+    is not misread as document structure.
+    """
+    import tempfile, os
+    src = (
+        "# Real Heading\n"
+        "\n"
+        "```bash\n"
+        "## Not A Heading\n"
+        "echo hello\n"
+        "```\n"
+        "\n"
+        "## Another Real Heading\n"
+    )
+    with tempfile.NamedTemporaryFile(suffix=".md", mode="w", delete=False) as fh:
+        fh.write(src)
+        fpath = fh.name
+    try:
+        r = extract_markdown(Path(fpath))
+        labels = _labels(r)
+    finally:
+        os.unlink(fpath)
+
+    assert any("Real Heading" in l for l in labels), f"'Real Heading' missing: {labels}"
+    assert any("Another Real Heading" in l for l in labels), f"'Another Real Heading' missing: {labels}"
+    assert not any("Not A Heading" in l for l in labels), \
+        f"fenced '## Not A Heading' was incorrectly parsed as a node: {labels}"
 
 def test_markdown_no_dangling_edges():
     r = extract_markdown(FIXTURES / "deploy_guide.md")