More test coverage (71%)

tests/test_ignore_dir.py

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+from __future__ import annotations
+
+from pathlib import Path
+
+
+def test_iter_effective_lines_skips_comments_and_block_comments():
+    from enroll.ignore import IgnorePolicy
+
+    policy = IgnorePolicy(deny_globs=[])
+
+    content = b"""
+# comment
+; semi
+// slash
+* c-star
+
+valid=1
+/* block
+ignored=1
+*/
+valid=2
+"""
+
+    lines = [l.strip() for l in policy.iter_effective_lines(content)]
+    assert lines == [b"valid=1", b"valid=2"]
+
+
+def test_deny_reason_dir_behaviour(tmp_path: Path):
+    from enroll.ignore import IgnorePolicy
+
+    # Use an absolute pattern matching our temporary path.
+    deny_glob = str(tmp_path / "deny") + "/*"
+    pol = IgnorePolicy(deny_globs=[deny_glob], dangerous=False)
+
+    d = tmp_path / "dir"
+    d.mkdir()
+    f = tmp_path / "file"
+    f.write_text("x", encoding="utf-8")
+    link = tmp_path / "link"
+    link.symlink_to(d)
+
+    assert pol.deny_reason_dir(str(d)) is None
+    assert pol.deny_reason_dir(str(link)) == "symlink"
+    assert pol.deny_reason_dir(str(f)) == "not_directory"
+
+    # Denied by glob.
+    deny_path = tmp_path / "deny" / "x"
+    deny_path.mkdir(parents=True)
+    assert pol.deny_reason_dir(str(deny_path)) == "denied_path"
+
+    # Missing/unreadable.
+    assert pol.deny_reason_dir(str(tmp_path / "missing")) == "unreadable"
+
+    # Dangerous disables deny_globs.
+    pol2 = IgnorePolicy(deny_globs=[deny_glob], dangerous=True)
+    assert pol2.deny_reason_dir(str(deny_path)) is None