Remove tools/tests.

tools/tests/base_unittest.py

-#!/usr/bin/python
-
-"""
-Copyright 2014 Google Inc.
-
-Use of this source code is governed by a BSD-style license that can be
-found in the LICENSE file.
-
-A wrapper around the standard Python unittest library, adding features we need
-for various unittests within this directory.
-
-TODO(epoger): Move this into the common repo for broader use?  Or at least in
-a more common place within the Skia repo?
-"""
-
-import errno
-import filecmp
-import os
-import shutil
-import tempfile
-import unittest
-
-TRUNK_DIR = os.path.abspath(os.path.join(
-    os.path.dirname(__file__), os.pardir, os.pardir))
-
-
-class TestCase(unittest.TestCase):
-
-  def __init__(self, *args, **kwargs):
-    super(TestCase, self).__init__(*args, **kwargs)
-    # Subclasses should override this default value if they want their output
-    # to be automatically compared against expectations (see setUp and tearDown)
-    self._testdata_dir = None
-
-  def setUp(self):
-    """Called before each test."""
-    # Get the name of this test, in such a way that it will be consistent
-    # regardless of the directory it is run from (throw away package names,
-    # if any).
-    self._test_name = '.'.join(self.id().split('.')[-3:])
-
-    self._temp_dir = tempfile.mkdtemp()
-    if self._testdata_dir:
-      self.create_empty_dir(self.output_dir_actual)
-
-  def tearDown(self):
-    """Called after each test."""
-    shutil.rmtree(self._temp_dir)
-    if self._testdata_dir and os.path.exists(self.output_dir_expected):
-      different_files = _find_different_files(self.output_dir_actual,
-                                              self.output_dir_expected)
-      # Don't add any cleanup code below this assert!
-      # Then if tests fail, the artifacts will not be cleaned up.
-      assert (not different_files), \
-        ('found differing files:\n' +
-         '\n'.join(['tkdiff %s %s &' % (
-             os.path.join(self.output_dir_actual, basename),
-             os.path.join(self.output_dir_expected, basename))
-                    for basename in different_files]))
-
-  @property
-  def temp_dir(self):
-    return self._temp_dir
-
-  @property
-  def input_dir(self):
-    assert self._testdata_dir, 'self._testdata_dir must be set'
-    return os.path.join(self._testdata_dir, 'inputs')
-
-  @property
-  def output_dir_actual(self):
-    assert self._testdata_dir, 'self._testdata_dir must be set'
-    return os.path.join(
-        self._testdata_dir, 'outputs', 'actual', self._test_name)
-
-  @property
-  def output_dir_expected(self):
-    assert self._testdata_dir, 'self._testdata_dir must be set'
-    return os.path.join(
-        self._testdata_dir, 'outputs', 'expected', self._test_name)
-
-  def shortDescription(self):
-    """Tell unittest framework to not print docstrings for test cases."""
-    return None
-
-  def create_empty_dir(self, path):
-    """Creates an empty directory at path and returns path.
-
-    Args:
-      path: path on local disk
-    """
-    # Delete the old one, if any.
-    if os.path.isdir(path):
-      shutil.rmtree(path=path, ignore_errors=True)
-    elif os.path.lexists(path):
-      os.remove(path)
-
-    # Create the new one.
-    try:
-      os.makedirs(path)
-    except OSError as exc:
-      # Guard against race condition (somebody else is creating the same dir)
-      if exc.errno != errno.EEXIST:
-        raise
-    return path
-
-
-def _find_different_files(dir1, dir2, ignore_subtree_names=None):
-  """Returns a list of any files that differ between the directory trees rooted
-  at dir1 and dir2.
-
-  Args:
-    dir1: root of a directory tree; if nonexistent, will raise OSError
-    dir2: root of another directory tree; if nonexistent, will raise OSError
-    ignore_subtree_names: list of subtree directory names to ignore;
-          defaults to ['.svn'], so all SVN files are ignores
-
-  TODO(epoger): include the dirname within each filename (not just the
-  basename), to make it easier to locate any differences
-  """
-  differing_files = []
-  if ignore_subtree_names is None:
-    ignore_subtree_names = ['.svn']
-  dircmp = filecmp.dircmp(dir1, dir2, ignore=ignore_subtree_names)
-  differing_files.extend(dircmp.left_only)
-  differing_files.extend(dircmp.right_only)
-  differing_files.extend(dircmp.common_funny)
-  differing_files.extend(dircmp.diff_files)
-  differing_files.extend(dircmp.funny_files)
-  for common_dir in dircmp.common_dirs:
-    differing_files.extend(_find_different_files(
-        os.path.join(dir1, common_dir), os.path.join(dir2, common_dir)))
-  return differing_files
-
-
-def main(test_case_class):
-  """Run the unit tests within the given class.
-
-  Raises an Exception if any of those tests fail (in case we are running in the
-  context of run_all.py, which depends on that Exception to signal failures).
-  """
-  suite = unittest.TestLoader().loadTestsFromTestCase(test_case_class)
-  results = unittest.TextTestRunner(verbosity=2).run(suite)
-  if not results.wasSuccessful():
-    raise Exception('failed unittest %s' % test_case_class)