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# -*- coding: utf-8 -*-
"""Tests that our test infrastructure is really working!"""
import os, sys
sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
from coverage.backward import to_bytes
from backunittest import TestCase
from coveragetest import CoverageTest
from coverage.backward import set # pylint: disable=W0622
class TestingTest(TestCase):
"""Tests of helper methods on `backunittest.TestCase`."""
run_in_temp_dir = False
def please_raise(self, exc, msg):
"""Raise an exception for testing assertRaisesRegexp."""
raise exc(msg)
def please_succeed(self):
"""A simple successful method for testing assertRaisesRegexp."""
return "All is well"
def test_assert_same_elements(self):
self.assertSameElements(set(), set())
self.assertSameElements(set([1,2,3]), set([3,1,2]))
self.assertRaises(AssertionError, self.assertSameElements,
set([1,2,3]), set()
)
self.assertRaises(AssertionError, self.assertSameElements,
set([1,2,3]), set([4,5,6])
)
def test_assert_regexp_matches(self):
self.assertRegexpMatches("hello", "hel*o")
self.assertRegexpMatches("Oh, hello there!", "hel*o")
self.assertRaises(AssertionError, self.assertRegexpMatches,
"hello there", "^hello$"
)
def test_assert_multiline_equal(self):
self.assertMultiLineEqual("hello", "hello")
self.assertRaises(AssertionError, self.assertMultiLineEqual,
"hello there", "Hello there"
)
self.assertRaises(AssertionError, self.assertMultiLineEqual,
"hello\nthere", "hello\nThere"
)
# With messages also.
self.assertMultiLineEqual("hi", "hi", "it's ok")
self.assertRaisesRegexp(
AssertionError, "my message",
self.assertMultiLineEqual, "xyz", "abc", "my message"
)
def test_assert_raises_regexp(self):
# Raising the right error with the right message passes.
self.assertRaisesRegexp(
ZeroDivisionError, "Wow! Zero!",
self.please_raise, ZeroDivisionError, "Wow! Zero!"
)
# Raising the right error with a match passes.
self.assertRaisesRegexp(
ZeroDivisionError, "Zero",
self.please_raise, ZeroDivisionError, "Wow! Zero!"
)
# Raising the right error with a mismatch fails.
self.assertRaises(AssertionError,
self.assertRaisesRegexp, ZeroDivisionError, "XYZ",
self.please_raise, ZeroDivisionError, "Wow! Zero!"
)
# Raising the right error with a mismatch fails.
self.assertRaises(AssertionError,
self.assertRaisesRegexp, ZeroDivisionError, "XYZ",
self.please_raise, ZeroDivisionError, "Wow! Zero!"
)
# Raising the wrong error raises the error itself.
self.assertRaises(ZeroDivisionError,
self.assertRaisesRegexp, IOError, "Wow! Zero!",
self.please_raise, ZeroDivisionError, "Wow! Zero!"
)
# Raising no error fails.
self.assertRaises(AssertionError,
self.assertRaisesRegexp, ZeroDivisionError, "XYZ",
self.please_succeed
)
def test_assert_true(self):
self.assertTrue(True)
self.assertRaises(AssertionError, self.assertTrue, False)
def test_assert_false(self):
self.assertFalse(False)
self.assertRaises(AssertionError, self.assertFalse, True)
def test_assert_in(self):
self.assertIn("abc", "hello abc")
self.assertIn("abc", ["xyz", "abc", "foo"])
self.assertIn("abc", {'abc': 1, 'xyz': 2})
self.assertRaises(AssertionError, self.assertIn, "abc", "xyz")
self.assertRaises(AssertionError, self.assertIn, "abc", ["x", "xabc"])
self.assertRaises(AssertionError, self.assertIn, "abc", {'x':'abc'})
def test_assert_not_in(self):
self.assertRaises(AssertionError, self.assertNotIn, "abc", "hello abc")
self.assertRaises(AssertionError, self.assertNotIn, "abc", ["xyz", "abc", "foo"])
self.assertRaises(AssertionError, self.assertNotIn, "abc", {'abc': 1, 'xyz': 2})
self.assertNotIn("abc", "xyz")
self.assertNotIn("abc", ["x", "xabc"])
self.assertNotIn("abc", {'x':'abc'})
class CoverageTestTest(CoverageTest):
"""Test the methods in `CoverageTest`."""
def file_text(self, fname):
"""Return the text read from a file."""
return open(fname, "rb").read().decode('ascii')
def test_make_file(self):
# A simple file.
self.make_file("fooey.boo", "Hello there")
self.assertEqual(open("fooey.boo").read(), "Hello there")
# A file in a sub-directory
self.make_file("sub/another.txt", "Another")
self.assertEqual(open("sub/another.txt").read(), "Another")
# A second file in that sub-directory
self.make_file("sub/second.txt", "Second")
self.assertEqual(open("sub/second.txt").read(), "Second")
# A deeper directory
self.make_file("sub/deeper/evenmore/third.txt")
self.assertEqual(open("sub/deeper/evenmore/third.txt").read(), "")
def test_make_file_newline(self):
self.make_file("unix.txt", "Hello\n")
self.assertEqual(self.file_text("unix.txt"), "Hello\n")
self.make_file("dos.txt", "Hello\n", newline="\r\n")
self.assertEqual(self.file_text("dos.txt"), "Hello\r\n")
self.make_file("mac.txt", "Hello\n", newline="\r")
self.assertEqual(self.file_text("mac.txt"), "Hello\r")
def test_make_file_non_ascii(self):
self.make_file("unicode.txt", "tabblo: «ταБЬℓσ»")
self.assertEqual(
open("unicode.txt", "rb").read(),
to_bytes("tabblo: «ταБЬℓσ»")
)
def test_file_exists(self):
self.make_file("whoville.txt", "We are here!")
self.assert_exists("whoville.txt")
self.assert_doesnt_exist("shadow.txt")
self.assertRaises(
AssertionError, self.assert_doesnt_exist, "whoville.txt"
)
self.assertRaises(AssertionError, self.assert_exists, "shadow.txt")
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