== F1a: find_untested_sources.py on fixture WITHOUT tests (needs-wrappers) ==
Scanning /private/tmp/dotnet-skills-review/tests/dotnet-test/generate-testability-wrappers/fixtures/needs-wrappers...
Parsed 5 files: 5 source, 0 test.
{
  "repo_root": "/private/tmp/dotnet-skills-review/tests/dotnet-test/generate-testability-wrappers/fixtures/needs-wrappers",
  "summary": {
    "source_files": 5,
    "test_files": 0,
    "tested_source_files": 0,
    "untested_source_files": 5,
    "orphan_test_files": 0,
    "languages": [
      "csharp"
    ]
  },
  "untested_sources": [
    {
      "path": "Program.cs",
      "language": "csharp",
      "declaration_count": 1,
      "declarations": [
        "Program"
      ],
      "suggested_test_path": "ProgramTests.cs"
    },
    {
      "path": "Services/ConsolePrompter.cs",
      "language": "csharp",
      "declaration_count": 1,
      "declarations": [
        "ConsolePrompter"
exit: 0

== F1b: same script on fixture WITH tests (grade-tests production-available) ==
Scanning /private/tmp/dotnet-skills-review/tests/dotnet-test/grade-tests/fixtures/production-available...
Parsed 2 files: 1 source, 1 test.
{
  "repo_root": "/private/tmp/dotnet-skills-review/tests/dotnet-test/grade-tests/fixtures/production-available",
  "summary": {
    "source_files": 1,
    "test_files": 1,
    "tested_source_files": 1,
    "untested_source_files": 0,
    "orphan_test_files": 0,
    "languages": [
      "csharp"
    ]
  },
  "untested_sources": [],
  "orphan_tests": []
}
exit: 0

== F1c: negative case: nonexistent path ==
ERROR: not a directory: /private/tmp/does-not-exist-xyz
exit: 1