Auto merge of #25377 - marmeladema:issue-23607/test-wpt, r=jdm

Run eventsource wpt tests with Python3

I deliberately changed the CI to run the WPT tests using Python3 to see if it works.
Even if we don't want to change the CI right now, the first commit with only the python requirements update can be merged.

---
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors

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etc/taskcluster/decision_task.py

@@ -658,7 +658,7 @@ def macos_wpt():
     priority = "high" if CONFIG.git_ref == "refs/heads/auto" else None
     build_task = macos_release_build_with_debug_assertions(priority=priority)
     def macos_run_task(name):
-        task = macos_task(name).with_python2() \
+        task = macos_task(name).with_python2().with_python3() \
             .with_repo_bundle(alternate_object_dir="/var/cache/servo.git/objects")
         return with_homebrew(task, ["etc/taskcluster/macos/Brewfile"])
     wpt_chunks(
@@ -734,7 +734,13 @@ def wpt_chunks(platform, make_chunk_task, build_task, total_chunks, processes,
         if this_chunk == 0:
             task.with_script("""
                 ./mach test-wpt-failure
-                time ./mach test-wpt --release --binary-arg=--multiprocess \
+                time python2 ./mach test-wpt --release --binary-arg=--multiprocess \
+                    --processes $PROCESSES \
+                    --log-raw test-wpt-mp.log \
+                    --log-errorsummary wpt-mp-errorsummary.log \
+                    eventsource \
+                    | cat
+                time env PYTHONIOENCODING=utf-8 python3 ./mach test-wpt --release --binary-arg=--multiprocess \
                     --processes $PROCESSES \
                     --log-raw test-wpt-mp.log \
                     --log-errorsummary wpt-mp-errorsummary.log \

etc/taskcluster/decisionlib.py

@@ -693,6 +693,12 @@ class MacOsGenericWorkerTask(UnixTaskMixin, GenericWorkerTask):
             pip install --user virtualenv
         """)
 
+    def with_python3(self):
+        return self.with_early_script("""
+            python3 -m ensurepip --user
+            python3 -m pip install --user virtualenv
+        """)
+
     def with_rustup(self):
         return self.with_early_script("""
             export PATH="$HOME/.cargo/bin:$PATH"

python/requirements.txt

@@ -5,8 +5,8 @@ blessings == 1.6
 distro == 1.4
 mach == 1.0.0
 mozdebug == 0.1
-mozinfo == 0.8
-mozlog == 3.6
+mozinfo == 1.1.0
+mozlog == 5.0
 setuptools == 39.0
 toml == 0.9.2
 

tests/wpt/run.py

@@ -34,7 +34,7 @@ def run_tests(**kwargs):
     set_defaults(kwargs)
 
     mozlog.commandline.log_formatters["servo"] = \
-        (grouping_formatter.ServoFormatter, "Servo’s grouping output formatter")
+        (grouping_formatter.ServoFormatter, "Servo's grouping output formatter")
     mozlog.commandline.log_formatters["servojson"] = \
         (grouping_formatter.ServoJsonFormatter, "Servo's JSON logger of unexpected results")