diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/lib/libunittest.tex | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/Doc/lib/libunittest.tex b/Doc/lib/libunittest.tex index 9ab0111..e739a85 100644 --- a/Doc/lib/libunittest.tex +++ b/Doc/lib/libunittest.tex @@ -82,6 +82,8 @@ class. \begin{seealso} + \seemodule{doctest}{Another test-support module with a very + different flavor.} \seetitle[http://pyunit.sourceforge.net/]{PyUnit Web Site}{The source for further information on PyUnit.} \seetitle[http://www.XProgramming.com/testfram.htm]{Simple Smalltalk @@ -128,9 +130,9 @@ if __name__ == '__main__': unittest.main() \end{verbatim} -A testcase is created by subclassing \code{unittest.TestCase}. +A testcase is created by subclassing \class{unittest.TestCase}. The three individual tests are defined with methods whose names start with -the letters \code{test}. This naming convention informs the test runner +the letters \samp{test}. This naming convention informs the test runner about which methods represent tests. The crux of each test is a call to \method{assertEqual()} to @@ -144,9 +146,10 @@ method prior to each test. Likewise, if a \method{tearDown()} method is defined, the test runner will invoke that method after each test. In the example, \method{setUp()} was used to create a fresh sequence for each test. -The final block shows a simple way to run the tests. \code{unittest.main()} -provides a command line interface to the test script. When run from the -command line, the above script produces an output that looks like this: +The final block shows a simple way to run the tests. +\function{unittest.main()} provides a command line interface to the +test script. When run from the command line, the above script +produces an output that looks like this: \begin{verbatim} ... @@ -156,14 +159,13 @@ Ran 3 tests in 0.000s OK \end{verbatim} -Instead of \code{unittest.main()}, there are other ways to run the tests +Instead of \function{unittest.main()}, there are other ways to run the tests with a finer level of control, less terse output, and no requirement to be run from the command line. For example, the last two lines may be replaced with: \begin{verbatim} -suite = unittest.TestSuite() -suite.addTest(unittest.makeSuite(TestSequenceFunctions)) +suite = unittest.makeSuite(TestSequenceFunctions) unittest.TextTestRunner(verbosity=2).run(suite) \end{verbatim} @@ -362,12 +364,11 @@ class WidgetTestSuite(unittest.TestSuite): Since it is a common pattern to create a \class{TestCase} subclass with many similarly named test functions, there is a convenience -function called \function{makeSuite()} provided in the -\refmodule{unittest} module that constructs a test suite that -comprises all of the test cases in a test case class: +function called \function{makeSuite()} that constructs a test suite +that comprises all of the test cases in a test case class: \begin{verbatim} -suite = unittest.makeSuite(WidgetTestCase,'test') +suite = unittest.makeSuite(WidgetTestCase) \end{verbatim} Note that when using the \function{makeSuite()} function, the order in @@ -517,7 +518,7 @@ if __name__ == '__main__': \end{funcdesc} In some cases, the existing tests may have be written using the -\module{doctest} module. If so, that module provides a +\refmodule{doctest} module. If so, that module provides a \class{DocTestSuite} class that can automatically build \class{unittest.TestSuite} instances from the existing test code. \versionadded{2.3} @@ -558,7 +559,7 @@ Methods in the first group are: \begin{methoddesc}[TestCase]{run}{\optional{result}} Run the test, collecting the result into the test result object - passed as \var{result}. If \var{result} is omitted or \code{None}, + passed as \var{result}. If \var{result} is omitted or \constant{None}, a temporary result object is created and used, but is not made available to the caller. This is equivalent to simply calling the \class{TestCase} instance. @@ -578,14 +579,14 @@ report failures. \methodline{failUnless}{expr\optional{, msg}} Signal a test failure if \var{expr} is false; the explanation for the error will be \var{msg} if given, otherwise it will be - \code{None}. + \constant{None}. \end{methoddesc} \begin{methoddesc}[TestCase]{assertEqual}{first, second\optional{, msg}} \methodline{failUnlessEqual}{first, second\optional{, msg}} Test that \var{first} and \var{second} are equal. If the values do not compare equal, the test will fail with the explanation given by - \var{msg}, or \code{None}. Note that using \method{failUnlessEqual()} + \var{msg}, or \constant{None}. Note that using \method{failUnlessEqual()} improves upon doing the comparison as the first parameter to \method{failUnless()}: the default value for \var{msg} can be computed to include representations of both \var{first} and @@ -596,7 +597,7 @@ report failures. \methodline{failIfEqual}{first, second\optional{, msg}} Test that \var{first} and \var{second} are not equal. If the values do compare equal, the test will fail with the explanation given by - \var{msg}, or \code{None}. Note that using \method{failIfEqual()} + \var{msg}, or \constant{None}. Note that using \method{failIfEqual()} improves upon doing the comparison as the first parameter to \method{failUnless()} is that the default value for \var{msg} can be computed to include representations of both \var{first} and @@ -612,7 +613,7 @@ report failures. 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 \var{msg}, or \code{None}. + given by \var{msg}, or \constant{None}. \end{methoddesc} \begin{methoddesc}[TestCase]{assertNotAlmostEqual}{first, second\optional{, @@ -624,7 +625,7 @@ report failures. 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 \var{msg}, or \code{None}. + given by \var{msg}, or \constant{None}. \end{methoddesc} \begin{methoddesc}[TestCase]{assertRaises}{exception, callable, \moreargs} @@ -640,12 +641,12 @@ report failures. \begin{methoddesc}[TestCase]{failIf}{expr\optional{, msg}} The inverse of the \method{failUnless()} method is the \method{failIf()} method. This signals a test failure if \var{expr} - is true, with \var{msg} or \code{None} for the error message. + is true, with \var{msg} or \constant{None} for the error message. \end{methoddesc} \begin{methoddesc}[TestCase]{fail}{\optional{msg}} Signals a test failure unconditionally, with \var{msg} or - \code{None} for the error message. + \constant{None} for the error message. \end{methoddesc} \begin{memberdesc}[TestCase]{failureException} @@ -680,10 +681,10 @@ information on the test: \end{methoddesc} \begin{methoddesc}[TestCase]{shortDescription}{} - Returns a one-line description of the test, or \code{None} if no + Returns a one-line description of the test, or \constant{None} if no description has been provided. The default implementation of this method returns the first line of the test method's docstring, if - available, or \code{None}. + available, or \constant{None}. \end{methoddesc} @@ -891,7 +892,7 @@ either by subclassing or assignment on an instance: \begin{memberdesc}[TestLoader]{sortTestMethodsUsing} Function to be used to compare method names when sorting them in \method{getTestCaseNames()}. The default value is the built-in - \function{cmp()} function; it can be set to \code{None} to disable + \function{cmp()} function; it can be set to \constant{None} to disable the sort. \end{memberdesc} |