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authorEzio Melotti <ezio.melotti@gmail.com>2010-11-03 20:39:14 (GMT)
committerEzio Melotti <ezio.melotti@gmail.com>2010-11-03 20:39:14 (GMT)
commit4370b3013967aacc3dd32d2ddb381ce5d454b36b (patch)
tree97de8e78b91d14fe588401a1706f0afffb7772d7
parent7dd1af00ad9e434ff3f60c6626fd30997c4a2dc0 (diff)
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List the assert* methods in tables in unittest doc.
-rw-r--r--Doc/library/unittest.rst522
1 files changed, 328 insertions, 194 deletions
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 95ab13a..2a35f4a 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -762,19 +762,50 @@ Test cases
by the test to be propagated to the caller, and can be used to support
running tests under a debugger.
- The test code can use any of the following methods to check for and report
- failures.
- .. method:: assertTrue(expr, msg=None)
- assert_(expr, msg=None)
- failUnless(expr, msg=None)
-
- Signal a test failure if *expr* is false; the explanation for the failure
- will be *msg* if given, otherwise it will be :const:`None`.
-
- .. deprecated:: 3.1
- :meth:`failUnless` and :meth:`assert_`; use :meth:`assertTrue`.
+ The :class:`TestCase` class provides a number of methods to check for and
+ report failures, such as:
+
+ +-----------------------------------------+-----------------------------+---------------+
+ | Method | Checks that | New in |
+ +=========================================+=============================+===============+
+ | :meth:`assertEqual(a, b) | ``a == b`` | |
+ | <TestCase.assertEqual>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertNotEqual(a, b) | ``a != b`` | |
+ | <TestCase.assertNotEqual>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertTrue(x) | ``bool(x) is True`` | |
+ | <TestCase.assertTrue>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertFalse(x) | ``bool(x) is False`` | |
+ | <TestCase.assertFalse>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIs(a, b) | ``a is b`` | 3.1 |
+ | <TestCase.assertIs>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIsNot(a, b) | ``a is not b`` | 3.1 |
+ | <TestCase.assertIsNot>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIsNone(x) | ``x is None`` | 3.1 |
+ | <TestCase.assertIsNone>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIsNotNone(x) | ``x is not None`` | 3.1 |
+ | <TestCase.assertIsNotNone>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIn(a, b) | ``a in b`` | 3.1 |
+ | <TestCase.assertIn>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertNotIn(a, b) | ``a not in b`` | 3.1 |
+ | <TestCase.assertNotIn>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertIsInstance(a, b) | ``isinstance(a, b)`` | 3.2 |
+ | <TestCase.assertIsInstance>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
+ | :meth:`assertNotIsInstance(a, b) | ``not isinstance(a, b)`` | 3.2 |
+ | <TestCase.assertNotIsInstance>` | | |
+ +-----------------------------------------+-----------------------------+---------------+
.. method:: assertEqual(first, second, msg=None)
@@ -818,101 +849,58 @@ Test cases
:meth:`failIfEqual`; use :meth:`assertNotEqual`.
- .. method:: assertAlmostEqual(first, second, places=7, msg=None, delta=None)
- failUnlessAlmostEqual(first, second, places=7, msg=None, delta=None)
-
- Test that *first* and *second* are approximately equal by computing the
- difference, rounding to the given number of decimal *places* (default 7),
- and comparing to zero.
-
- Note that comparing a given number of decimal places is not the same as
- comparing a given number of significant digits. If the values do not
- compare equal, the test will fail with the explanation given by *msg*, or
- :const:`None`.
-
- If *delta* is supplied instead of *places* then the difference
- between *first* and *second* must be less than *delta*.
-
- Supplying both *delta* and *places* raises a ``TypeError``.
+ .. method:: assertTrue(expr, msg=None)
+ assert_(expr, msg=None)
+ failUnless(expr, msg=None)
- .. versionchanged:: 3.2
- Objects that compare equal are automatically almost equal.
- Added the ``delta`` keyword argument.
+ Signal a test failure if *expr* is false; the explanation for the failure
+ will be *msg* if given, otherwise it will be :const:`None`.
.. deprecated:: 3.1
- :meth:`failUnlessAlmostEqual`; use :meth:`assertAlmostEqual`.
-
-
- .. method:: assertNotAlmostEqual(first, second, places=7, msg=None, delta=None)
- failIfAlmostEqual(first, second, places=7, msg=None, delta=None)
-
- Test that *first* and *second* are not approximately equal by computing
- the difference, rounding to the given number of decimal *places* (default
- 7), and comparing to zero.
-
- Note that comparing a given number of decimal places is not the same as
- comparing a given number of significant digits. If the values do not
- compare equal, the test will fail with the explanation given by *msg*, or
- :const:`None`.
+ :meth:`failUnless` and :meth:`assert_`; use :meth:`assertTrue`.
- If *delta* is supplied instead of *places* then the difference
- between *first* and *second* must be more than *delta*.
- Supplying both *delta* and *places* raises a ``TypeError``.
+ .. method:: assertFalse(expr, msg=None)
+ failIf(expr, msg=None)
- .. versionchanged:: 3.2
- Objects that compare equal automatically fail. Added the ``delta``
- keyword argument.
+ The inverse of the :meth:`assertTrue` method is the :meth:`assertFalse` method.
+ This signals a test failure if *expr* is true, with *msg* or :const:`None`
+ for the error message.
.. deprecated:: 3.1
- :meth:`failIfAlmostEqual`; use :meth:`assertNotAlmostEqual`.
+ :meth:`failIf`; use :meth:`assertFalse`.
- .. method:: assertGreater(first, second, msg=None)
- assertGreaterEqual(first, second, msg=None)
- assertLess(first, second, msg=None)
- assertLessEqual(first, second, msg=None)
-
- Test that *first* is respectively >, >=, < or <= than *second* depending
- on the method name. If not, the test will fail with an explanation
- or with the explanation given by *msg*::
+ .. method:: assertIs(expr1, expr2, msg=None)
- >>> self.assertGreaterEqual(3, 4)
- AssertionError: "3" unexpectedly not greater than or equal to "4"
+ This signals a test failure if *expr1* and *expr2* don't evaluate to the same
+ object.
.. versionadded:: 3.1
- .. method:: assertMultiLineEqual(self, first, second, msg=None)
-
- Test that the multiline string *first* is equal to the string *second*.
- When not equal a diff of the two strings highlighting the differences
- will be included in the error message. This method is used by default
- when comparing strings with :meth:`assertEqual`.
+ .. method:: assertIsNot(expr1, expr2, msg=None)
- If specified, *msg* will be used as the error message on failure.
+ The inverse of the :meth:`assertIs` method.
+ This signals a test failure if *expr1* and *expr2* evaluate to the same
+ object.
.. versionadded:: 3.1
- .. method:: assertRegexpMatches(text, regexp, msg=None)
+ .. method:: assertIsNone(expr, msg=None)
- Verifies that a *regexp* search matches *text*. Fails with an error
- message including the pattern and the *text*. *regexp* may be
- a regular expression object or a string containing a regular expression
- suitable for use by :func:`re.search`.
+ This signals a test failure if *expr* is not None.
.. versionadded:: 3.1
- .. method:: assertNotRegexpMatches(text, regexp, msg=None)
+ .. method:: assertIsNotNone(expr, msg=None)
- Verifies that a *regexp* search does not match *text*. Fails with an error
- message including the pattern and the part of *text* that matches. *regexp*
- may be a regular expression object or a string containing a regular
- expression suitable for use by :func:`re.search`.
+ The inverse of the :meth:`assertIsNone` method.
+ This signals a test failure if *expr* is None.
- .. versionadded:: 3.2
+ .. versionadded:: 3.1
.. method:: assertIn(first, second, msg=None)
@@ -926,106 +914,42 @@ Test cases
.. versionadded:: 3.1
- .. method:: assertSameElements(actual, expected, msg=None)
-
- Test that sequence *expected* contains the same elements as *actual*,
- regardless of their order. When they don't, an error message listing
- the differences between the sequences will be generated.
-
- Duplicate elements are ignored when comparing *actual* and *expected*.
- It is the equivalent of ``assertEqual(set(expected), set(actual))``
- but it works with sequences of unhashable objects as well. Because
- duplicates are ignored, this method has been deprecated in favour of
- :meth:`assertItemsEqual`.
-
- If specified, *msg* will be used as the error message on failure.
-
- .. versionadded:: 3.1
- .. deprecated:: 3.2
-
-
- .. method:: assertItemsEqual(actual, expected, msg=None)
-
- Test that sequence *expected* contains the same elements as *actual*,
- regardless of their order. When they don't, an error message listing the
- differences between the sequences will be generated.
-
- Duplicate elements are *not* ignored when comparing *actual* and
- *expected*. It verifies if each element has the same count in both
- sequences. It is the equivalent of ``assertEqual(sorted(expected),
- sorted(actual))`` but it works with sequences of unhashable objects as
- well.
+ .. method:: assertIsInstance(obj, cls[, msg])
- If specified, *msg* will be used as the error message on failure.
+ This signals a test failure if *obj* is not an instance of *cls* (which
+ can be a class or a tuple of classes, as supported by :func:`isinstance`).
.. versionadded:: 3.2
- .. method:: assertSetEqual(set1, set2, msg=None)
-
- Tests that two sets are equal. If not, an error message is constructed
- that lists the differences between the sets. This method is used by
- default when comparing sets or frozensets with :meth:`assertEqual`.
-
- Fails if either of *set1* or *set2* does not have a :meth:`set.difference`
- method.
-
- If specified, *msg* will be used as the error message on failure.
-
- .. versionadded:: 3.1
-
-
- .. method:: assertDictEqual(expected, actual, msg=None)
-
- Test that two dictionaries are equal. If not, an error message is
- constructed that shows the differences in the dictionaries. This
- method will be used by default to compare dictionaries in
- calls to :meth:`assertEqual`.
-
- If specified, *msg* will be used as the error message on failure.
-
- .. versionadded:: 3.1
-
-
- .. method:: assertDictContainsSubset(expected, actual, msg=None)
-
- Tests whether the key/value pairs in dictionary *actual* are a
- superset of those in *expected*. If not, an error message listing
- the missing keys and mismatched values is generated.
-
- If specified, *msg* will be used as the error message on failure.
-
- .. versionadded:: 3.1
-
-
- .. method:: assertListEqual(list1, list2, msg=None)
- assertTupleEqual(tuple1, tuple2, msg=None)
-
- Tests that two lists or tuples are equal. If not an error message is
- constructed that shows only the differences between the two. An error
- is also raised if either of the parameters are of the wrong type.
- These methods are used by default when comparing lists or tuples with
- :meth:`assertEqual`.
-
- If specified, *msg* will be used as the error message on failure.
+ .. method:: assertNotIsInstance(obj, cls[, msg])
- .. versionadded:: 3.1
+ The inverse of the :meth:`assertIsInstance` method. This signals a test
+ failure if *obj* is an instance of *cls*.
+ .. versionadded:: 3.2
- .. method:: assertSequenceEqual(seq1, seq2, msg=None, seq_type=None)
- Tests that two sequences are equal. If a *seq_type* is supplied, both
- *seq1* and *seq2* must be instances of *seq_type* or a failure will
- be raised. If the sequences are different an error message is
- constructed that shows the difference between the two.
- If specified, *msg* will be used as the error message on failure.
-
- This method is used to implement :meth:`assertListEqual` and
- :meth:`assertTupleEqual`.
+ It is also possible to check that exceptions and warnings are raised using
+ the following methods:
- .. versionadded:: 3.1
+ +---------------------------------------------------------+--------------------------------------+------------+
+ | Method | Checks that | New in |
+ +=========================================================+======================================+============+
+ | :meth:`assertRaises(exc, fun, *args, **kwds) | ``fun(*args, **kwds)`` raises `exc` | |
+ | <TestCase.assertRaises>` | | |
+ +---------------------------------------------------------+--------------------------------------+------------+
+ | :meth:`assertRaisesRegexp(exc, re, fun, *args, **kwds) | ``fun(*args, **kwds)`` raises `exc` | 3.1 |
+ | <TestCase.assertRaisesRegexp>` | and the message matches `re` | |
+ +---------------------------------------------------------+--------------------------------------+------------+
+ | :meth:`assertWarns(warn, fun, *args, **kwds) | ``fun(*args, **kwds)`` raises `warn` | 3.2 |
+ | <TestCase.assertWarns>` | | |
+ +---------------------------------------------------------+--------------------------------------+------------+
+ | :meth:`assertWarnsRegexp(warn, re, fun, *args, **kwds) | ``fun(*args, **kwds)`` raises `warn` | 3.2 |
+ | <TestCase.assertWarnsRegexp>` | and the message matches `re` | |
+ +---------------------------------------------------------+--------------------------------------+------------+
.. method:: assertRaises(exception, callable, *args, **kwds)
failUnlessRaises(exception, callable, *args, **kwds)
@@ -1136,63 +1060,273 @@ Test cases
.. versionadded:: 3.2
- .. method:: assertIsNone(expr, msg=None)
- This signals a test failure if *expr* is not None.
+ There are also other methods used to perform more specific checks, such as:
+
+ +---------------------------------------+--------------------------------+--------------+
+ | Method | Checks that | New in |
+ +=======================================+================================+==============+
+ | :meth:`assertAlmostEqual(a, b) | ``round(a-b, 7) == 0`` | |
+ | <TestCase.assertAlmostEqual>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertNotAlmostEqual(a, b) | ``round(a-b, 7) != 0`` | |
+ | <TestCase.assertNotAlmostEqual>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertGreater(a, b) | ``a > b`` | 3.1 |
+ | <TestCase.assertGreater>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertGreaterEqual(a, b) | ``a >= b`` | 3.1 |
+ | <TestCase.assertGreaterEqual>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertLess(a, b) | ``a < b`` | 3.1 |
+ | <TestCase.assertLess>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertLessEqual(a, b) | ``a <= b`` | 3.1 |
+ | <TestCase.assertLessEqual>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertRegexpMatches(s, re) | ``regex.search(s)`` | 3.1 |
+ | <TestCase.assertRegexpMatches>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertNotRegexpMatches(s, re) | ``not regex.search(s)`` | 3.2 |
+ | <TestCase.assertNotRegexpMatches>` | | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertDictContainsSubset(a, b) | all the key/value pairs | 3.1 |
+ | <TestCase.assertDictContainsSubset>` | in `a` exist in `b` | |
+ +---------------------------------------+--------------------------------+--------------+
+ | :meth:`assertItemsEqual(a, b) | `a` and `b` have the same | 3.2 |
+ | <TestCase.assertItemsEqual>` | elements in the same number, | |
+ | | regardless of their order | |
+ +---------------------------------------+--------------------------------+--------------+
- .. versionadded:: 3.1
+ .. method:: assertAlmostEqual(first, second, places=7, msg=None, delta=None)
+ failUnlessAlmostEqual(first, second, places=7, msg=None, delta=None)
- .. method:: assertIsNotNone(expr, msg=None)
+ Test that *first* and *second* are approximately equal by computing the
+ difference, rounding to the given number of decimal *places* (default 7),
+ and comparing to zero.
- The inverse of the :meth:`assertIsNone` method.
- This signals a test failure if *expr* is None.
+ Note that comparing a given number of decimal places is not the same as
+ comparing a given number of significant digits. If the values do not
+ compare equal, the test will fail with the explanation given by *msg*, or
+ :const:`None`.
- .. versionadded:: 3.1
+ If *delta* is supplied instead of *places* then the difference
+ between *first* and *second* must be less than *delta*.
+ Supplying both *delta* and *places* raises a ``TypeError``.
- .. method:: assertIs(expr1, expr2, msg=None)
+ .. versionchanged:: 3.2
+ Objects that compare equal are automatically almost equal.
+ Added the ``delta`` keyword argument.
- This signals a test failure if *expr1* and *expr2* don't evaluate to the same
- object.
+ .. deprecated:: 3.1
+ :meth:`failUnlessAlmostEqual`; use :meth:`assertAlmostEqual`.
+
+
+ .. method:: assertNotAlmostEqual(first, second, places=7, msg=None, delta=None)
+ failIfAlmostEqual(first, second, places=7, msg=None, delta=None)
+
+ Test that *first* and *second* are not approximately equal by computing
+ the difference, rounding to the given number of decimal *places* (default
+ 7), and comparing to zero.
+
+ Note that comparing a given number of decimal places is not the same as
+ comparing a given number of significant digits. If the values do not
+ compare equal, the test will fail with the explanation given by *msg*, or
+ :const:`None`.
+
+ If *delta* is supplied instead of *places* then the difference
+ between *first* and *second* must be more than *delta*.
+
+ Supplying both *delta* and *places* raises a ``TypeError``.
+
+ .. versionchanged:: 3.2
+ Objects that compare equal automatically fail. Added the ``delta``
+ keyword argument.
+
+ .. deprecated:: 3.1
+ :meth:`failIfAlmostEqual`; use :meth:`assertNotAlmostEqual`.
+
+
+ .. method:: assertGreater(first, second, msg=None)
+ assertGreaterEqual(first, second, msg=None)
+ assertLess(first, second, msg=None)
+ assertLessEqual(first, second, msg=None)
+
+ Test that *first* is respectively >, >=, < or <= than *second* depending
+ on the method name. If not, the test will fail with an explanation
+ or with the explanation given by *msg*::
+
+ >>> self.assertGreaterEqual(3, 4)
+ AssertionError: "3" unexpectedly not greater than or equal to "4"
.. versionadded:: 3.1
- .. method:: assertIsNot(expr1, expr2, msg=None)
+ .. method:: assertRegexpMatches(text, regexp, msg=None)
- The inverse of the :meth:`assertIs` method.
- This signals a test failure if *expr1* and *expr2* evaluate to the same
- object.
+ Verifies that a *regexp* search matches *text*. Fails with an error
+ message including the pattern and the *text*. *regexp* may be
+ a regular expression object or a string containing a regular expression
+ suitable for use by :func:`re.search`.
.. versionadded:: 3.1
- .. method:: assertIsInstance(obj, cls[, msg])
+ .. method:: assertNotRegexpMatches(text, regexp, msg=None)
- This signals a test failure if *obj* is not an instance of *cls* (which
- can be a class or a tuple of classes, as supported by :func:`isinstance`).
+ Verifies that a *regexp* search does not match *text*. Fails with an error
+ message including the pattern and the part of *text* that matches. *regexp*
+ may be a regular expression object or a string containing a regular
+ expression suitable for use by :func:`re.search`.
.. versionadded:: 3.2
- .. method:: assertNotIsInstance(obj, cls[, msg])
+ .. method:: assertDictContainsSubset(expected, actual, msg=None)
- The inverse of the :meth:`assertIsInstance` method. This signals a test
- failure if *obj* is an instance of *cls*.
+ Tests whether the key/value pairs in dictionary *actual* are a
+ superset of those in *expected*. If not, an error message listing
+ the missing keys and mismatched values is generated.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+
+
+ .. method:: assertItemsEqual(actual, expected, msg=None)
+
+ Test that sequence *expected* contains the same elements as *actual*,
+ regardless of their order. When they don't, an error message listing the
+ differences between the sequences will be generated.
+
+ Duplicate elements are *not* ignored when comparing *actual* and
+ *expected*. It verifies if each element has the same count in both
+ sequences. It is the equivalent of ``assertEqual(sorted(expected),
+ sorted(actual))`` but it works with sequences of unhashable objects as
+ well.
+
+ If specified, *msg* will be used as the error message on failure.
.. versionadded:: 3.2
- .. method:: assertFalse(expr, msg=None)
- failIf(expr, msg=None)
+ .. method:: assertSameElements(actual, expected, msg=None)
- The inverse of the :meth:`assertTrue` method is the :meth:`assertFalse` method.
- This signals a test failure if *expr* is true, with *msg* or :const:`None`
- for the error message.
+ Test that sequence *expected* contains the same elements as *actual*,
+ regardless of their order. When they don't, an error message listing
+ the differences between the sequences will be generated.
- .. deprecated:: 3.1
- :meth:`failIf`; use :meth:`assertFalse`.
+ Duplicate elements are ignored when comparing *actual* and *expected*.
+ It is the equivalent of ``assertEqual(set(expected), set(actual))``
+ but it works with sequences of unhashable objects as well. Because
+ duplicates are ignored, this method has been deprecated in favour of
+ :meth:`assertItemsEqual`.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+ .. deprecated:: 3.2
+
+
+
+ The following methods are used automatically by :meth:`~TestCase.assertEqual`
+ and usually is not necessary to invoke them directly:
+
+ +-----------------------------------------+-----------------------------+--------------+
+ | Method | Used to compare | New in |
+ +=========================================+=============================+==============+
+ | :meth:`assertMultiLineEqual(a, b) | strings | 3.1 |
+ | <TestCase.assertMultiLineEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+ | :meth:`assertSequenceEqual(a, b) | sequences | 3.1 |
+ | <TestCase.assertSequenceEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+ | :meth:`assertListEqual(a, b) | lists | 3.1 |
+ | <TestCase.assertListEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+ | :meth:`assertTupleEqual(a, b) | tuples | 3.1 |
+ | <TestCase.assertTupleEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+ | :meth:`assertSetEqual(a, b) | sets or frozensets | 3.1 |
+ | <TestCase.assertSetEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+ | :meth:`assertDictEqual(a, b) | dicts | 3.1 |
+ | <TestCase.assertDictEqual>` | | |
+ +-----------------------------------------+-----------------------------+--------------+
+
+
+
+ .. method:: assertMultiLineEqual(self, first, second, msg=None)
+
+ Test that the multiline string *first* is equal to the string *second*.
+ When not equal a diff of the two strings highlighting the differences
+ will be included in the error message. This method is used by default
+ when comparing strings with :meth:`assertEqual`.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+
+
+ .. method:: assertSequenceEqual(seq1, seq2, msg=None, seq_type=None)
+
+ Tests that two sequences are equal. If a *seq_type* is supplied, both
+ *seq1* and *seq2* must be instances of *seq_type* or a failure will
+ be raised. If the sequences are different an error message is
+ constructed that shows the difference between the two.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ This method is used to implement :meth:`assertListEqual` and
+ :meth:`assertTupleEqual`.
+
+ .. versionadded:: 3.1
+
+
+ .. method:: assertListEqual(list1, list2, msg=None)
+ assertTupleEqual(tuple1, tuple2, msg=None)
+
+ Tests that two lists or tuples are equal. If not an error message is
+ constructed that shows only the differences between the two. An error
+ is also raised if either of the parameters are of the wrong type.
+ These methods are used by default when comparing lists or tuples with
+ :meth:`assertEqual`.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+
+
+ .. method:: assertSetEqual(set1, set2, msg=None)
+
+ Tests that two sets are equal. If not, an error message is constructed
+ that lists the differences between the sets. This method is used by
+ default when comparing sets or frozensets with :meth:`assertEqual`.
+
+ Fails if either of *set1* or *set2* does not have a :meth:`set.difference`
+ method.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+
+
+ .. method:: assertDictEqual(expected, actual, msg=None)
+
+ Test that two dictionaries are equal. If not, an error message is
+ constructed that shows the differences in the dictionaries. This
+ method will be used by default to compare dictionaries in
+ calls to :meth:`assertEqual`.
+
+ If specified, *msg* will be used as the error message on failure.
+
+ .. versionadded:: 3.1
+
+
+
+ Finally the :class:`TestCase` provides the following methods and attributes:
.. method:: fail(msg=None)