Move tests into their projects.

tests/golden.py

@@ -1,78 +0,0 @@
-
-
-import optparse
-import os.path
-import shutil
-import subprocess
-import sys
-import tempfile
-import unittest
-
-
-def _accept_actual(failed):
-    for actual_str, golden_path in failed:
-        with open(golden_path, "wb") as golden_file:
-            golden_file.write(actual_str)
-        print("Wrote golden file:", golden_path)
-
-
-def _show_differences(failed):
-    temp_dir = tempfile.mkdtemp()
-    try:
-        golden_dir = os.path.join(temp_dir, "golden")
-        actual_dir = os.path.join(temp_dir, "actual")
-        os.mkdir(golden_dir)
-        os.mkdir(actual_dir)
-        for actual_str, golden_file in failed:
-            name = os.path.basename(golden_file)
-            actual_path = os.path.join(actual_dir, name)
-            with open(actual_path, "wb") as actual:
-                actual.write(actual_str)
-            os.symlink(os.path.abspath(golden_file),
-                       os.path.join(golden_dir, name))
-        diff_command = ["meld"] if shutil.which("meld") else ["diff", "-r"]
-        subprocess.run(diff_command + [actual_dir, golden_dir])
-    finally:
-        shutil.rmtree(temp_dir)
-
-
-_FAILED = set()
-
-
-def assertGolden(actual, golden_path):
-    actual = actual.encode("utf-8")
-    try:
-        with open(golden_path, "rb") as golden_file:
-            expected = golden_file.read()
-    except FileNotFoundError:
-        expected = None
-    if actual != expected:
-        _FAILED.add((actual, golden_path))
-        if expected is None:
-            raise unittest.TestCase.failureException(
-                f'The golden file does not exist: {golden_path!r}\n'
-                'Use "--diff" or "--accept" to create the golden file.')
-        else:
-            raise unittest.TestCase.failureException(
-                f'Output does not match golden file: {golden_path!r}\n'
-                'Use "--diff" or "--accept" to update the golden file.')
-
-
-def main():
-    parser = optparse.OptionParser()
-    parser.add_option("-a", "--accept", action="store_true",
-                      dest="should_accept_actual")
-    parser.add_option("-d", "--diff", action="store_true", dest="should_diff")
-    options, args = parser.parse_args()
-    # unitest.main doesn't expect these arguments, so remove them.
-    for argument in ["-a", "--accept", "-d", "--diff"]:
-        if argument in sys.argv:
-            sys.argv.remove(argument)
-    try:
-        unittest.main()
-    finally:
-        if len(_FAILED) > 0:
-            if options.should_accept_actual:
-                _accept_actual(_FAILED)
-            if options.should_diff:
-                _show_differences(_FAILED)