New expect_tests UI

expect_tests/test/pipeline_test.py

+import os
+import unittest
+
+from expect_tests import pipeline
+
+SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))
+
+
+class ParsingAndConfigTest(unittest.TestCase):
+  def test_get_config(self):
+    """Testing that reading the config file works. Tests requires a specific
+    content for data/.expect_tests.cfg"""
+    path = os.path.join(SCRIPT_DIR, 'data')
+    black_list = pipeline.get_config(path)
+    self.assertEqual(black_list,
+                     set(['directory1', 'directory2', 'ignored']))
+
+  def test_parse_test_glob(self):
+    self.assertEqual(pipeline.parse_test_glob('a/b/c'),
+                     (os.path.abspath('a/b/c'), '*'))
+    self.assertEqual(pipeline.parse_test_glob('a/b/c:'),
+                     (os.path.abspath('a/b/c'), '*'))
+    self.assertEqual(pipeline.parse_test_glob('a/b/c:Test'),
+                     (os.path.abspath('a/b/c'), 'Test'))
+    self.assertEqual(pipeline.parse_test_glob('a/b/c:Test.Name'),
+                     (os.path.abspath('a/b/c'), 'Test.Name'))
+    self.assertRaises(ValueError, pipeline.parse_test_glob, 'a:b:c',)
+    self.assertRaises(ValueError, pipeline.parse_test_glob, 'a:b/c',)
+
+
+class PathManipulationTest(unittest.TestCase):
+  """Tests for all path-manipulating functions.
+
+  This set uses checked-out files in the present repository to avoid mocking
+  the I/O functions.

[iannucci, 2014/11/12 20:26:24]

+1 :)

You could also have done a setUpClass sort of thing to populate a temporary
directory. Either way is better than mocking the filesystem.

[pgervais, 2014/11/13 17:55:47]

I replied to this elsewhere: the less I touch the filesystem the better.
Creating files means deleting them and deleting means trouble on windows (and is
generally dangerous).

+  """
+
+  def test_get_python_root(self):
+    """This function uses the directory structure under data/"""
+    data_dir = os.path.join(SCRIPT_DIR, 'data')
+    self.assertEqual(pipeline.get_python_root(data_dir), data_dir)
+    self.assertEqual(pipeline.get_python_root(
+      os.path.join(data_dir, 'package1')), data_dir)
+    self.assertEqual(pipeline.get_python_root(
+      os.path.join(data_dir, 'package1', 'subpackage1_1')), data_dir)
+    self.assertRaises(ValueError, pipeline.get_python_root,
+                      '____non-existing-path____')

[iannucci, 2014/11/12 20:26:24]

this isn't meant to be a python identifier, is it? If it is, the dashes are
problematic.

[pgervais, 2014/11/13 17:55:47]

It is meant to be a filename. Nothing is loaded by get_python_root so the name
can be arbitrary. That's possibly a bad example though.

+
+  def test_get_runtime_context(self):
+    """Test the get_runtime_context function"""
+    datadir = os.path.join(SCRIPT_DIR, 'data')
+
+    # Single directory case
+    test_globs = [datadir]
+    contexts = pipeline.get_runtime_contexts(test_globs)
+    self.assertEqual(len(contexts), 1)
+    self.assertEqual(contexts[0].cwd, datadir)
+    for testing_c in contexts[0].testing_contexts:
+      self.assertNotEqual(testing_c.package_name, 'ignored')
+
+    # Single package
+    test_globs = [os.path.join(datadir, 'package1')]
+    contexts = pipeline.get_runtime_contexts(test_globs)
+    self.assertEqual(len(contexts), 1)
+    self.assertEqual(contexts[0].cwd, datadir)
+    testing_c = contexts[0].testing_contexts
+    self.assertEqual(len(testing_c), 1)
+    self.assertEqual(testing_c[0].package_name, 'package1')
+
+    # Two packages in the same directory
+    test_globs = [os.path.join(datadir, 'package1'),
+                  os.path.join(datadir, 'package2')]
+    contexts = pipeline.get_runtime_contexts(test_globs)
+    self.assertEqual(len(contexts), 1)
+    self.assertEqual(contexts[0].cwd, datadir)
+    testing_c = contexts[0].testing_contexts
+    self.assertEqual(len(testing_c), 2)
+    package_names = set()
+    for testing_c in contexts[0].testing_contexts:
+      package_names.add(testing_c.package_name)
+
+    self.assertEqual(package_names, set(('package1', 'package2')))
+
+    # Packages inside directory
+    test_globs = [datadir, os.path.join(datadir, 'package1')]
+    contexts = pipeline.get_runtime_contexts(test_globs)
+    self.assertEqual(len(contexts), 1)
+    # 2 is the number of packages under datadir, not counting
+    # the ignored ones.
+    self.assertEqual(len(contexts[0].testing_contexts), 2)
+
+    test_globs = [datadir, os.path.join(datadir, 'package1'),
+                  os.path.join(datadir, 'package1', 'subpackage1_1')]
+    contexts = pipeline.get_runtime_contexts(test_globs)
+    self.assertEqual(len(contexts), 1)
+    self.assertEqual(len(contexts[0].testing_contexts), 2)
+
+
+  def test_package_testing_context(self):
+    """Test the PackageTestingContext class"""
+    package_name = 'package1'
+    package1 = os.path.join(SCRIPT_DIR, 'data', package_name)
+    package2 = os.path.join(SCRIPT_DIR, 'data', 'package2')
+    other_package1 = os.path.join(SCRIPT_DIR, 'data', 'other', package_name)
+
+    # from_path
+    context = pipeline.PackageTestingContext.from_path(package1)
+    self.assertTrue(os.path.isabs(context.cwd))
+    self.assertTrue(len(context.package_name) > 0)
+    self.assertEqual(len(context.filters), 1)
+    self.assertEqual(context.filters[0][1], '*')
+
+    context = pipeline.PackageTestingContext.from_path(package1,
+                                                       filters='*')
+    self.assertTrue(os.path.isabs(context.cwd))
+    self.assertTrue(len(context.package_name) > 0)
+    self.assertEqual(len(context.filters), 1)
+    self.assertEqual(context.filters[0][1], '*')

[iannucci, 2014/11/12 20:26:24]

it wouldn't be possible to break this function up into a series of shorter,
possibly-more-desrciptive tests, would it?

[pgervais, 2014/11/13 17:55:47]

Done.

+
+    context = pipeline.PackageTestingContext.from_path(package1,
+                                                       filters=('a*', 'b*'))
+    self.assertTrue(os.path.isabs(context.cwd))
+    self.assertTrue(len(context.package_name) > 0)
+    self.assertEqual(len(context.filters), 2)
+    self.assertEqual(context.filters[0][1], 'a*')
+    self.assertEqual(context.filters[1][1], 'b*')
+
+    # from_context_list
+    c1 = pipeline.PackageTestingContext.from_path(package1, filters='a')
+    c2 = pipeline.PackageTestingContext.from_path(package1, filters=('b','c'))
+    context = pipeline.PackageTestingContext.from_context_list((c1, c2))
+    self.assertEqual(len(context.filters), 3)
+    self.assertEqual(set(filt[1] for filt in context.filters),
+                     set(('a', 'b', 'c')))
+
+    c1 = pipeline.PackageTestingContext.from_path(package1, filters='a')
+    c2 = pipeline.PackageTestingContext.from_path(package2, filters=('b','c'))
+    self.assertRaises(AssertionError,
+                      pipeline.PackageTestingContext.from_context_list,
+                      (c1, c2))
+
+    # Same package name, different paths.
+    c1 = pipeline.PackageTestingContext.from_path(package1, filters='a')
+    c2 = pipeline.PackageTestingContext.from_path(other_package1,
+                                                  filters=('b','c'))
+    self.assertRaises(AssertionError,
+                      pipeline.PackageTestingContext.from_context_list,
+                      (c1, c2))
+
+
+  def test_processing_context(self):
+    """Test the ProcessingContext class"""
+    package_name = 'package1'
+    package1 = os.path.join(SCRIPT_DIR, 'data', package_name)
+    subpackage1 = os.path.join(SCRIPT_DIR, 'data',
+                               package_name, 'subpackage1_1')
+    package2 = os.path.join(SCRIPT_DIR, 'data', 'package2')
+    other_package1 = os.path.join(SCRIPT_DIR, 'data', 'other', package_name)
+
+    c0 = pipeline.PackageTestingContext.from_path(package1)
+    c1 = pipeline.PackageTestingContext.from_path(package1, filters='a')
+    c2 = pipeline.PackageTestingContext.from_path(subpackage1, filters='d')
+    c3 = pipeline.PackageTestingContext.from_path(package2, filters=('b','c'))
+    c4 = pipeline.PackageTestingContext.from_path(other_package1)
+
+    # A processing context is a cwd + testing contexts.
+    # A testing context is cwd + one package name.
+    context = pipeline.ProcessingContext((c1, c2))
+    self.assertEqual(len(context.testing_contexts), 1)
+    self.assertEqual(set(filt[1]
+                         for filt in context.testing_contexts[0].filters),
+                     set(('a', 'd')))
+
+    context = pipeline.ProcessingContext((c0, c1, c2))
+    self.assertEqual(len(context.testing_contexts), 1)
+    self.assertEqual(set(filt[1]
+                         for filt in context.testing_contexts[0].filters),
+                     set(('*', 'a', 'd')))
+
+
+    context = pipeline.ProcessingContext((c1, c2, c3))
+    self.assertEqual(len(context.testing_contexts), 2)
+
+    # Fails because there are two different cwd.
+    self.assertRaises(ValueError, pipeline.ProcessingContext, (c1, c4))
+