fixture-repository coverage for the testing strategy

tests/test_repository_scanner.py

@@ -1,4 +1,9 @@
 from repo_registry.repo_scanning.scanner import DeterministicScanner
+from tests.fixtures import (
+    write_misleading_docs_repo,
+    write_python_cli_repo,
+    write_readme_only_repo,
+)
 
 
 def test_deterministic_scanner_extracts_structural_facts(tmp_path):
@@ -34,3 +39,35 @@ def test_deterministic_scanner_extracts_structural_facts(tmp_path):
 
     languages = {fact.name: fact.metadata["file_count"] for fact in result.facts if fact.kind == "language"}
     assert languages == {"Python": 2}
+
+
+def test_scanner_readme_only_fixture_records_docs_without_interfaces(tmp_path):
+    repo = write_readme_only_repo(tmp_path)
+
+    result = DeterministicScanner().scan(repo)
+
+    facts = {(fact.kind, fact.name, fact.path) for fact in result.facts}
+    assert ("documentation", "README", "README.md") in facts
+    assert {fact.kind for fact in result.facts} == {"documentation"}
+
+
+def test_scanner_python_cli_fixture_records_cli_and_framework_hints(tmp_path):
+    repo = write_python_cli_repo(tmp_path)
+
+    result = DeterministicScanner().scan(repo)
+
+    facts = {(fact.kind, fact.name, fact.path) for fact in result.facts}
+    assert ("framework", "Click", "requirements.txt") in facts
+    assert ("framework", "pytest", "requirements.txt") in facts
+    assert ("interface", "python CLI command decorator", "cli.py") in facts
+    assert ("test", "test_cli.py", "tests/test_cli.py") in facts
+
+
+def test_scanner_misleading_docs_fixture_stays_observational(tmp_path):
+    repo = write_misleading_docs_repo(tmp_path)
+
+    result = DeterministicScanner().scan(repo)
+
+    assert [(fact.kind, fact.name, fact.path) for fact in result.facts] == [
+        ("documentation", "README", "README.md")
+    ]