Regression 264089@main: [ews] unapply-patch is consistently failing w…

…ith an exception

https://bugs.webkit.org/show_bug.cgi?id=259935
rdar://113591649

Reviewed by Aakash Jain.

* Tools/CISupport/ews-build/steps.py:
(CleanWorkingDirectory.run): setCommand deprecated in new-style builds.
* Tools/CISupport/ews-build/steps_unittest.py:
(TestCleanWorkingDirectory.test_success_wpe):

Canonical link: https://commits.webkit.org/266721@main

Tools/CISupport/ews-build/steps.py

@@ -947,7 +947,7 @@ def __init__(self, **kwargs):
     def run(self):
         platform = self.getProperty('platform')
         if platform in ('gtk', 'wpe'):
-            self.setCommand(self.command + ['--keep-jhbuild-directory'])
+            self.command = self.command + ['--keep-jhbuild-directory']
         return super().run()
 
 

Tools/CISupport/ews-build/steps_unittest.py

@@ -3466,6 +3466,19 @@ def test_success(self):
         self.expectOutcome(result=SUCCESS, state_string='Cleaned working directory')
         return self.runStep()
 
+    def test_success_wpe(self):
+        self.setupStep(CleanWorkingDirectory())
+        self.setProperty('platform', 'wpe')
+        self.expectRemoteCommands(
+            ExpectShell(workdir='wkdir',
+                        logEnviron=False,
+                        command=['python3', 'Tools/Scripts/clean-webkit', '--keep-jhbuild-directory'],
+                        )
+            + 0,
+        )
+        self.expectOutcome(result=SUCCESS, state_string='Cleaned working directory')
+        return self.runStep()
+
     def test_failure(self):
         self.setupStep(CleanWorkingDirectory())
         self.expectRemoteCommands(