compat.doctest.DocTestRunner API [rev. 38799]

class DocTestRunner():

A class used to run DocTest test cases, and accumulate statistics. The `run` method is used to process a single DocTest case. It returns a tuple `(f, t)`, where `t` is the number of test cases tried, and `f` is the number of test cases that failed. >>> tests = DocTestFinder().find(_TestClass) >>> runner = DocTestRunner(verbose=False) >>> tests.sort(key = lambda test: test.name) >>> for test in tests: ... print test.name, '->', runner.run(test) _TestClass -> (0, 2) _TestClass.__init__ -> (0, 2) _TestClass.get -> (0, 2) _TestClass.square -> (0, 1) The `summarize` method prints a summary of all the test cases that have been run by the runner, and returns an aggregated `(f, t)` tuple: >>> runner.summarize(verbose=1) 4 items passed all tests: 2 tests in _TestClass 2 tests in _TestClass.__init__ 2 tests in _TestClass.get 1 tests in _TestClass.square 7 tests in 4 items. 7 passed and 0 failed. Test passed. (0, 7) The aggregated number of tried examples and failed examples is also available via the `tries` and `failures` attributes: >>> runner.tries 7 >>> runner.failures 0 The comparison between expected outputs and actual outputs is done by an `OutputChecker`. This comparison may be customized with a number of option flags; see the documentation for `testmod` for more information. If the option flags are insufficient, then the comparison may also be customized by passing a subclass of `OutputChecker` to the constructor. The test runner's display output can be controlled in two ways. First, an output function (`out) can be passed to `TestRunner.run`; this function will be called with strings that should be displayed. It defaults to `sys.stdout.write`. If capturing the output is not sufficient, then the display output can be also customized by subclassing DocTestRunner, and overriding the methods `report_start`, `report_success`, `report_unexpected_exception`, and `report_failure`.

class attributes and properties:

DIVIDER: **********************************************************************

methods:

def __init__(self, checker=None, verbose=None, optionflags=0):

Create a new test runner. Optional keyword arg `checker` is the `OutputChecker` that should be used to compare the expected outputs and actual outputs of doctest examples. Optional keyword arg 'verbose' prints lots of stuff if true, only failures if false; by default, it's true iff '-v' is in sys.argv. Optional argument `optionflags` can be used to control how the test runner compares expected output to actual output, and how it displays failures. See the documentation for `testmod` for more information.

def merge(self, other):

*no docstring available*

def report_failure(self, out, test, example, got):

Report that the given example failed.

def report_start(self, out, test, example):

Report that the test runner is about to process the given example. (Only displays a message if verbose=True)

def report_success(self, out, test, example, got):

Report that the given example ran successfully. (Only displays a message if verbose=True)

def report_unexpected_exception(self, out, test, example, exc_info):

Report that the given example raised an unexpected exception.

def run(self, test, compileflags=None, out=None, clear_globs=True):

Run the examples in `test`, and display the results using the writer function `out`. The examples are run in the namespace `test.globs`. If `clear_globs` is true (the default), then this namespace will be cleared after the test runs, to help with garbage collection. If you would like to examine the namespace after the test completes, then use `clear_globs=False`. `compileflags` gives the set of flags that should be used by the Python compiler when running the examples. If not specified, then it will default to the set of future-import flags that apply to `globs`. The output of each example is checked using `DocTestRunner.check_output`, and the results are formatted by the `DocTestRunner.report_*` methods.

def summarize(self, verbose=None):

Print a summary of all the test cases that have been run by this DocTestRunner, and return a tuple `(f, t)`, where `f` is the total number of failed examples, and `t` is the total number of tried examples. The optional `verbose` argument controls how detailed the summary is. If the verbosity is not specified, then the DocTestRunner's verbosity is used.