Use tuple everywhere with explicit conversion.

TEST=Add PanProjectChecks unittest, there was none.

R=dpranke@chromium.org
BUG=

Review URL: http://codereview.chromium.org/7104141

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@88982 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_canned_checks.py

@@ -576,8 +576,8 @@ def RunPylint(input_api, output_api, white_list=None, black_list=None):
 
   The default white_list enforces looking only a *.py files.
   """
-  white_list = white_list or ['.*\.py$']
-  black_list = black_list or input_api.DEFAULT_BLACK_LIST
+  white_list = tuple(white_list or ('.*\.py$',))
+  black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
   if input_api.is_committing:
     error_type = output_api.PresubmitError
   else:
@@ -846,11 +846,11 @@ def PanProjectChecks(input_api, output_api,
   Returns:
     A list of warning or error objects.
   """
-  excluded_paths = excluded_paths or  tuple()
-  text_files = text_files or (
+  excluded_paths = tuple(excluded_paths or [])
+  text_files = tuple(text_files or (
       r'.+\.txt$',
       r'.+\.json$',
-  )
+  ))
   project_name = project_name or 'Chromium'
   license_header = license_header or (
       r'.*? Copyright \(c\) %(year)s The %(project)s Authors\. '

tests/presubmit_unittest.py

@@ -10,6 +10,7 @@
 
 import StringIO
 import sys
+import time
 
 # Fixes include path.
 from super_mox import mox, SuperMoxTestBase
@@ -1361,6 +1362,8 @@ class CannedChecksUnittest(PresubmitTestsBase):
     input_api.tbr = False
     input_api.python_executable = 'pyyyyython'
     input_api.platform = sys.platform
+    input_api.time = time
+    input_api.canned_checks = presubmit_canned_checks
     return input_api
 
   def testMembersChanged(self):
@@ -2157,6 +2160,44 @@ mac|success|blew
     self.checkstdout(
         'Running %s\n' % presubmit.os.path.join('random_directory', 'b'))
 
+  def testPanProjectChecks(self):
+    # Make sure it accepts both list and tuples.
+    change = presubmit.Change(
+        'foo1', 'description1', self.fake_root_dir, None, 0, 0, None)
+    input_api = self.MockInputApi(change, False)
+    affected_file = self.mox.CreateMock(presubmit.SvnAffectedFile)
+    for _ in range(3):
+      input_api.AffectedFiles(file_filter=mox.IgnoreArg(), include_deletes=False
+          ).AndReturn([affected_file])
+      affected_file.NewContents().AndReturn('Hey!\nHo!\nHey!\nHo!\n\n')
+    affected_file.ChangedContents().AndReturn([
+        (0, 'Hey!\n'),
+        (1, 'Ho!\n'),
+        (2, 'Hey!\n'),
+        (3, 'Ho!\n'),
+        (4, '\n')])
+    for _ in range(5):
+      affected_file.LocalPath().AndReturn('hello.py')
+    input_api.AffectedSourceFiles(mox.IgnoreArg()).AndReturn([affected_file])
+    input_api.ReadFile(affected_file).AndReturn('Hey!\nHo!\nHey!\nHo!\n\n')
+    input_api.AffectedSourceFiles(mox.IgnoreArg()).AndReturn([affected_file])
+    for _ in range(4):
+      affected_file.LocalPath().AndReturn('hello.py')
+
+    self.mox.ReplayAll()
+    results = presubmit_canned_checks.PanProjectChecks(
+        input_api,
+        presubmit.OutputApi,
+        excluded_paths=None,
+        text_files=None,
+        license_header=None,
+        project_name=None,
+        owners_check=True)
+    self.assertEqual(1, len(results))
+    self.assertEqual(
+        'Found line ending with white spaces in:', results[0]._message)
+    self.checkstdout('')
+
 
 if __name__ == '__main__':
   import unittest