[tools/perf] Add smoke test cover for record_wpr list command (Reland)

tools/perf/scripts_smoke_unittest.py

Index: tools/perf/scripts_smoke_unittest.py
diff --git a/tools/perf/scripts_smoke_unittest.py b/tools/perf/scripts_smoke_unittest.py
index c8ea208794a02e8aa8c9a4dd7661eae0640d54a9..503d3890cde56e68af8840c293a25ae8ffe58b50 100644
--- a/tools/perf/scripts_smoke_unittest.py
+++ b/tools/perf/scripts_smoke_unittest.py
@@ -24,8 +24,8 @@ class ScriptsSmokeTest(unittest.TestCase):
 
   def testRunBenchmarkHelp(self):
     return_code, stdout = self.RunPerfScript('run_benchmark help')
+    self.assertEquals(return_code, 0, stdout)
     self.assertIn('Available commands are', stdout)
-    self.assertEquals(return_code, 0)
 
   def testRunBenchmarkRunListsOutBenchmarks(self):
     return_code, stdout = self.RunPerfScript('run_benchmark run')
@@ -39,14 +39,24 @@ class ScriptsSmokeTest(unittest.TestCase):
 
   def testRunBenchmarkListListsOutBenchmarks(self):
     return_code, stdout = self.RunPerfScript('run_benchmark list')
+    self.assertEquals(return_code, 0, stdout)
     self.assertIn('Pass --browser to list benchmarks', stdout)
     self.assertIn('dummy_benchmark.stable_benchmark_1', stdout)
-    self.assertEquals(return_code, 0)
 
   def testRunRecordWprHelp(self):
     return_code, stdout = self.RunPerfScript('record_wpr')
+    self.assertEquals(return_code, 0, stdout)
     self.assertIn('optional arguments:', stdout)
-    self.assertEquals(return_code, 0)
+
+  def testRunRecordWprList(self):
+    return_code, stdout = self.RunPerfScript('record_wpr --list-benchmarks')
+    # TODO(nednguyen): Remove this once we figure out why importing
+    # small_profile_extender fails on Android dbg.
+    # crbug.com/561668
+    if 'ImportError: cannot import name small_profile_extender' in stdout:
+      self.skipTest('small_profile_extender is missing')
+    self.assertEquals(return_code, 0, stdout)
+    self.assertIn('kraken', stdout)
 
   def testRunBenchmarkListJSONListsOutBenchmarks(self):
     tmp_file = tempfile.NamedTemporaryFile(delete=False)