File size: 2,639 Bytes
198fb2a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | #!/usr/bin/env python3
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()
|