tools/json_schema_compiler/dart_generator_test.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import os
   7 import sys
   8 import unittest
   9
  10 from compiler import GenerateSchema
  11
  12 # If --rebase is passed to this test, this is set to True, indicating the test
  13 # output should be re-generated for each test (rather than running the tests
  14 # themselves).
  15 REBASE_MODE = False
  16
  17 # The directory containing the input and expected output files corresponding
  18 # to each test name.
  19 TESTS_DIR = 'dart_test'
  20
  21 class DartTest(unittest.TestCase):
  22
  23   def _RunTest(self, test_filename):
  24     '''Given the name of a test, runs compiler.py on the file:
  25       TESTS_DIR/test_filename.idl
  26     and compares it to the output in the file:
  27       TESTS_DIR/test_filename.dart
  28     '''
  29     file_rel = os.path.join(TESTS_DIR, test_filename)
  30
  31     output_dir = None
  32     if REBASE_MODE:
  33       output_dir = TESTS_DIR
  34     output_code = GenerateSchema('dart', ['%s.idl' % file_rel], TESTS_DIR,
  35                                  output_dir, '', None, None, [])
  36
  37     if not REBASE_MODE:
  38       with open('%s.dart' % file_rel) as f:
  39         expected_output = f.read()
  40       # Remove the first line of the output code (as it contains the filename).
  41       # Also remove all blank lines, ignoring them from the comparison.
  42       # Compare with lists instead of strings for clearer diffs (especially with
  43       # whitespace) when a test fails.
  44       self.assertEqual([l for l in expected_output.split('\n') if l],
  45                        [l for l in output_code.split('\n')[1:] if l])
  46
  47   def setUp(self):
  48     # Increase the maximum diff amount to see the full diff on a failed test.
  49     self.maxDiff = 2000
  50
  51   def testComments(self):
  52     self._RunTest('comments')
  53
  54   def testDictionaries(self):
  55     self._RunTest('dictionaries')
  56
  57   def testEmptyNamespace(self):
  58     self._RunTest('empty_namespace')
  59
  60   def testEmptyType(self):
  61     self._RunTest('empty_type')
  62
  63   def testEvents(self):
  64     self._RunTest('events')
  65
  66   def testBasicFunction(self):
  67     self._RunTest('functions')
  68
  69   def testOpratableType(self):
  70     self._RunTest('operatable_type')
  71
  72   def testTags(self):
  73     self._RunTest('tags')
  74
  75
  76 if __name__ == '__main__':
  77   if '--rebase' in sys.argv:
  78     print "Running in rebase mode."
  79     REBASE_MODE = True
  80     sys.argv.remove('--rebase')
  81   unittest.main()