Auto merge of #29923 - mrobinson:test-scripts, r=jdm

Combine all script tests into `test-scripts`

Remove:
    - tidy self test support from `./mach test`
    - `./mach test-idl`

Adds a `./mach test-scripts` command that is responsible for running all
Python script tests. Run this during the CI to catch regressions in
changes to scripts. The WebIDL tests are still *very* slow and there are
from Gecko, so only run them when "-a" is passed meaning all tests.

<!-- Please describe your changes on the following line: -->

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

python/wpt/__init__.py

@@ -12,6 +12,8 @@ import sys
 
 import mozlog.commandline
 
+from . import test
+
 SCRIPT_PATH = os.path.abspath(os.path.dirname(__file__))
 SERVO_ROOT = os.path.abspath(os.path.join(SCRIPT_PATH, "..", ".."))
 WPT_PATH = os.path.join(SERVO_ROOT, "tests", "wpt")
@@ -62,3 +64,7 @@ def update_args_for_legacy_layout(kwargs: dict):
     kwargs["include_manifest"] = os.path.join(
         WPT_PATH, "include-legacy-layout.ini"
     )
+
+
+def run_tests():
+    return test.run_tests()

python/wpt/exporter/__init__.py

@@ -127,7 +127,7 @@ class SyncRun:
         return SyncRun.clean_up_body_text(body) + f"\nReviewed in {self.servo_pr}"
 
 
-@dataclasses.dataclass(kw_only=True)
+@dataclasses.dataclass()
 class WPTSync:
     servo_repo: str
     wpt_repo: str

python/wpt/requirements-dev.txt

@@ -1,4 +0,0 @@
--r requirements.txt
-
-flask
-types-requests

python/wpt/requirements.txt

@@ -1 +0,0 @@
-requests

python/wpt/test.py

@@ -26,30 +26,27 @@ import logging
 import os
 import shutil
 import subprocess
-import sys
 import tempfile
 import threading
 import time
 import unittest
 
 from functools import partial
-from typing import Any, Optional, Tuple
+from typing import Any, Optional, Tuple, Type
 from wsgiref.simple_server import WSGIRequestHandler, make_server
 
 import flask
 import flask.cli
 import requests
-from exporter import SyncRun, WPTSync
-from exporter.step import CreateOrUpdateBranchForPRStep
+
+from .exporter import SyncRun, WPTSync
+from .exporter.step import CreateOrUpdateBranchForPRStep
 
 TESTS_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "tests")
 SYNC: Optional[WPTSync] = None
 TMP_DIR: Optional[str] = None
 PORT = 9000
 
-if "-v" in sys.argv or "--verbose" in sys.argv:
-    logging.getLogger().level = logging.DEBUG
-
 
 @dataclasses.dataclass
 class MockPullRequest():
@@ -666,8 +663,16 @@ def tearDownModule():
     shutil.rmtree(TMP_DIR)
 
 
-if __name__ == "__main__":
-    # Uncomment this line to enable verbose logging.
-    # logging.getLogger().setLevel(logging.INFO)
+def run_tests():
+    verbosity = 1 if logging.getLogger().level >= logging.WARN else 2
 
-    unittest.main()
+    def run_suite(test_case: Type[unittest.TestCase]):
+        return unittest.TextTestRunner(verbosity=verbosity).run(
+            unittest.TestLoader().loadTestsFromTestCase(test_case)
+        ).wasSuccessful()
+
+    return all([
+        run_suite(TestApplyCommitsToWPT),
+        run_suite(TestCleanUpBodyText),
+        run_suite(TestFullSyncRun),
+    ])