Make the try slave selection client side.

tests/trychange_unittest.py

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 
 """Unit tests for trychange.py."""
 
+import optparse
 import unittest
 
 # Local imports
+import gcl
 import super_mox
 import trychange
+import upload
 from super_mox import mox
 
 
 class TryChangeTestsBase(super_mox.SuperMoxTestBase):
   """Setups and tear downs the mocks but doesn't test anything as-is."""
   pass
 
 
 class TryChangeUnittest(TryChangeTestsBase):
   """General trychange.py tests."""
   def testMembersChanged(self):
     members = [
       'EscapeDot', 'GIT', 'GetSourceRoot',
       'GetTryServerSettings', 'GuessVCS',
       'HELP_STRING', 'InvalidScript', 'NoTryServerAccess', 'PathDifference',
       'RunCommand', 'SCM', 'SVN', 'TryChange', 'USAGE',
       'datetime', 'gcl', 'gclient', 'gclient_scm', 'getpass', 'logging',
-      'optparse', 'os', 'shutil', 'socket', 'sys', 'tempfile', 'traceback',
-      'upload', 'urllib', 'subprocess',
+      'optparse', 'os', 'presubmit_support', 'shutil', 'socket', 'subprocess',
+      'sys', 'tempfile', 'traceback', 'upload', 'urllib',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange, members)
 
 
 class SVNUnittest(TryChangeTestsBase):
   """trychange.SVN tests."""
+  def setUp(self):
+    self.fake_root = '/fake_root'
+    self.expected_files = ['foo.txt', 'bar.txt']
+    change_info = gcl.ChangeInfo('test_change', 0, 0, 'desc',
+                                 [('M', f) for f in self.expected_files],
+                                 self.fake_root)
+    self.svn = trychange.SVN(None)
+    self.svn.change_info = change_info
+    super_mox.SuperMoxTestBase.setUp(self)
+
   def testMembersChanged(self):
     members = [
-      'GenerateDiff', 'ProcessOptions', 'options'
+      'GenerateDiff', 'GetFileNames', 'GetLocalRoot', 'ProcessOptions',
+      'options'
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange.SVN(None), members)
 
+  def testGetFileNames(self):
+    self.mox.ReplayAll()
+    self.assertEqual(self.svn.GetFileNames(), self.expected_files)
+
+  def testGetLocalRoot(self):
+    self.mox.ReplayAll()
+    self.assertEqual(self.svn.GetLocalRoot(), self.fake_root)
+
 
 class GITUnittest(TryChangeTestsBase):
   """trychange.GIT tests."""
+  def setUp(self):
+    self.fake_root = '/fake_root'
+    self.expected_files = ['foo.txt', 'bar.txt']
+    options = optparse.Values()
+    options.files = self.expected_files
+    self.git = trychange.GIT(options)
+    super_mox.SuperMoxTestBase.setUp(self)
+
   def testMembersChanged(self):
     members = [
-      'GenerateDiff', 'GetEmail', 'GetPatchName', 'ProcessOptions', 'options'
+      'GenerateDiff', 'GetEmail', 'GetFileNames', 'GetLocalRoot',
+      'GetPatchName', 'ProcessOptions', 'options'
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange.GIT(None), members)
 
+  def testGetFileNames(self):
+    self.mox.ReplayAll()
+    self.assertEqual(self.git.GetFileNames(), self.expected_files)
+
+  def testGetLocalRoot(self):
+    self.mox.StubOutWithMock(upload, 'RunShell')
+    upload.RunShell(['git', 'rev-parse', '--show-cdup']).AndReturn(
+        self.fake_root)
+    self.mox.ReplayAll()
+    self.assertEqual(self.git.GetLocalRoot(), self.fake_root)
+
 
 if __name__ == '__main__':
   unittest.main()