Extract analyze-baselines command out of rebaseline.py.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/analyze_baselines_unittest.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from webkitpy.common.checkout.baselineoptimizer import BaselineOptimizer
+from webkitpy.layout_tests.controllers.test_result_writer import TestResultWriter
+from webkitpy.tool.commands.analyze_baselines import AnalyzeBaselines
+from webkitpy.tool.commands.rebaseline_unittest import BaseTestCase
+from webkitpy.tool.mocktool import MockOptions
+
+
+class _FakeOptimizer(BaselineOptimizer):
+
+    def read_results_by_directory(self, baseline_name):
+        if baseline_name.endswith('txt'):
+            return {'LayoutTests/passes/text.html': '123456'}
+        return {}
+
+
+class TestAnalyzeBaselines(BaseTestCase):
+    command_constructor = AnalyzeBaselines
+
+    def setUp(self):
+        super(TestAnalyzeBaselines, self).setUp()
+        self.port = self.tool.port_factory.get('test')
+        self.tool.port_factory.get = (lambda port_name=None, options=None: self.port)
+        self.lines = []
+        self.command._optimizer_class = _FakeOptimizer
+        self.command._write = (lambda msg: self.lines.append(msg))
+
+    def test_default(self):
+        self.command.execute(MockOptions(suffixes='txt', missing=False, platform=None), ['passes/text.html'], self.tool)
+        self.assertEqual(self.lines,
+                         ['passes/text-expected.txt:',
+                          '  (generic): 123456'])
+
+    def test_missing_baselines(self):
+        self.command.execute(MockOptions(suffixes='png,txt', missing=True, platform=None), ['passes/text.html'], self.tool)
+        self.assertEqual(self.lines,
+                         ['passes/text-expected.png: (no baselines found)',
+                          'passes/text-expected.txt:',
+                          '  (generic): 123456'])