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Add unit tests for get_commit_timestamp_utc & name_hash #595

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Add unit tests for get_commit_timestamp_utc & name_hash #595

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29 changes: 28 additions & 1 deletion tests_unit/lobster_html_report/test_html_report.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,9 @@
import unittest
import hashlib
import subprocess
from datetime import datetime, timezone
from lobster.tools.core.html_report.html_report import get_commit_timestamp_utc
from unittest.mock import patch
from lobster.tools.core.html_report.html_report import get_commit_timestamp_utc, name_hash


class LobsterHtmlReportTests(unittest.TestCase):
Expand All @@ -25,6 +27,31 @@ def test_timestamp_unknown_commit(self):
returned = get_commit_timestamp_utc(invalid_commit)
self.assertEqual(returned, "Unknown")

def test_timestamp_found_in_submodule(self):
"""Test when commit is found only in submodule"""
with patch("lobster.tools.core.html_report.html_report.run_git_show") as mock_run:
# First call (main repo) returns None, second call (submodule) returns timestamp
mock_run.side_effect = [None, "2026-06-25T12:00:00Z"]
returned = get_commit_timestamp_utc("abc123", submodule_path="submodule/path")
self.assertEqual(returned, "2026-06-25T12:00:00Z (from submodule at submodule/path)")

def test_various_inputs(self):
"""Ensure name_hash matches hashlib.md5 for multiple inputs"""
test_cases = [
("", hashlib.md5("".encode("UTF-8")).hexdigest()), # empty string
("Unit", hashlib.md5("Unit".encode("UTF-8")).hexdigest()), # ASCII
("Straße", hashlib.md5("Straße".encode("UTF-8")).hexdigest()), # German
("Test", hashlib.md5("Test".encode("UTF-8")).hexdigest()), # consistency check
]

for input_str, expected in test_cases:
with self.subTest(name=input_str):
self.assertEqual(name_hash(input_str), expected)

def test_different_inputs(self):
"""Different inputs should yield different hashes"""
self.assertNotEqual(name_hash("Unit"), name_hash("Test"))


if __name__ == "__main__":
unittest.main()
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