| |
|
|
| import os |
| import shutil |
| import subprocess |
| import sys |
| import unittest |
|
|
| sys.path.insert(0, os.path.dirname(os.path.realpath(__file__))) |
|
|
| import genMetrics |
|
|
|
|
| class GitHeadCommitTests(unittest.TestCase): |
| """Tests git_head_commit()'s fallback behavior so commit metadata |
| extraction degrades gracefully instead of raising.""" |
|
|
| def test_returns_descriptive_string_when_git_not_on_path(self): |
| """Nix builds and hermetic Bazel sandboxes can lack git; the |
| helper must report that distinctly rather than masquerading as |
| 'not a git repo'.""" |
| self.assertEqual(genMetrics.git_head_commit(None, "/tmp"), "git not on PATH") |
|
|
| def test_returns_na_when_folder_is_not_a_directory(self): |
| """An unset/misconfigured PLATFORM_DIR must not let subprocess |
| raise FileNotFoundError on cwd.""" |
| self.assertEqual( |
| genMetrics.git_head_commit("/usr/bin/git", "/no/such/directory/orfs-test"), |
| "N/A", |
| ) |
|
|
|
|
| class ShutilWhichGitConsistencyTests(unittest.TestCase): |
| """Cross-checks shutil.which("git") against actually invoking git, so |
| we catch any environment (e.g. a stripped Nix sandbox) where the two |
| disagree and the PATH probe would give the wrong answer.""" |
|
|
| def test_which_matches_git_version(self): |
| which_result = shutil.which("git") |
| try: |
| output = subprocess.check_output( |
| ["git", "--version"], stderr=subprocess.STDOUT, text=True |
| ) |
| except FileNotFoundError: |
| self.assertIsNone( |
| which_result, |
| "shutil.which found git but invoking it raised FileNotFoundError", |
| ) |
| return |
|
|
| self.assertIsNotNone( |
| which_result, |
| "git --version succeeded but shutil.which returned None", |
| ) |
| self.assertTrue(output.startswith("git version "), output) |
|
|
|
|
| class ShutilWhichMissingCommandTests(unittest.TestCase): |
| """Validates shutil.which() returns None for a non-existent command. |
| This is the primitive git_head_commit() relies on at the call site; |
| if it ever returned a bogus path (in Nix, in a Bazel sandbox, |
| anywhere) the missing-git branch would never fire.""" |
|
|
| BOGUS_CMD = "orfs-genmetrics-no-such-command-xyzzy" |
|
|
| def test_which_returns_none_for_missing_command(self): |
| self.assertIsNone(shutil.which(self.BOGUS_CMD)) |
|
|
| def test_invoking_missing_command_raises_file_not_found(self): |
| with self.assertRaises(FileNotFoundError): |
| subprocess.check_call([self.BOGUS_CMD]) |
|
|
|
|
| if __name__ == "__main__": |
| unittest.main() |
|
|
