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# Copyright (c) 2001-2008 Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Interfaces for Trial.
Maintainer: Jonathan Lange
"""
import zope.interface as zi
from zope.interface import Attribute
class ITestCase(zi.Interface):
"""
The interface that a test case must implement in order to be used in Trial.
"""
failureException = zi.Attribute(
"The exception class that is raised by failed assertions")
def __call__(result):
"""
Run the test. Should always do exactly the same thing as run().
"""
def countTestCases():
"""
Return the number of tests in this test case. Usually 1.
"""
def id():
"""
Return a unique identifier for the test, usually the fully-qualified
Python name.
"""
def run(result):
"""
Run the test, storing the results in C{result}.
@param result: A L{TestResult}.
"""
def shortDescription():
"""
Return a short description of the test.
"""
class IReporter(zi.Interface):
"""
I report results from a run of a test suite.
"""
stream = zi.Attribute(
"Deprecated in Twisted 8.0. "
"The io-stream that this reporter will write to")
tbformat = zi.Attribute("Either 'default', 'brief', or 'verbose'")
args = zi.Attribute(
"Additional string argument passed from the command line")
shouldStop = zi.Attribute(
"""
A boolean indicating that this reporter would like the test run to stop.
""")
separator = Attribute(
"Deprecated in Twisted 8.0. "
"A value which will occasionally be passed to the L{write} method.")
testsRun = Attribute(
"""
The number of tests that seem to have been run according to this
reporter.
""")
def startTest(method):
"""
Report the beginning of a run of a single test method.
@param method: an object that is adaptable to ITestMethod
"""
def stopTest(method):
"""
Report the status of a single test method
@param method: an object that is adaptable to ITestMethod
"""
def startSuite(name):
"""
Deprecated in Twisted 8.0.
Suites which wish to appear in reporter output should call this
before running their tests.
"""
def endSuite(name):
"""
Deprecated in Twisted 8.0.
Called at the end of a suite, if and only if that suite has called
C{startSuite}.
"""
def cleanupErrors(errs):
"""
Deprecated in Twisted 8.0.
Called when the reactor has been left in a 'dirty' state
@param errs: a list of L{twisted.python.failure.Failure}s
"""
def upDownError(userMeth, warn=True, printStatus=True):
"""
Deprecated in Twisted 8.0.
Called when an error occurs in a setUp* or tearDown* method
@param warn: indicates whether or not the reporter should emit a
warning about the error
@type warn: Boolean
@param printStatus: indicates whether or not the reporter should
print the name of the method and the status
message appropriate for the type of error
@type printStatus: Boolean
"""
def addSuccess(test):
"""
Record that test passed.
"""
def addError(test, error):
"""
Record that a test has raised an unexpected exception.
@param test: The test that has raised an error.
@param error: The error that the test raised. It will either be a
three-tuple in the style of C{sys.exc_info()} or a
L{Failure<twisted.python.failure.Failure>} object.
"""
def addFailure(test, failure):
"""
Record that a test has failed with the given failure.
@param test: The test that has failed.
@param failure: The failure that the test failed with. It will
either be a three-tuple in the style of C{sys.exc_info()}
or a L{Failure<twisted.python.failure.Failure>} object.
"""
def addExpectedFailure(test, failure, todo):
"""
Record that the given test failed, and was expected to do so.
@type test: L{pyunit.TestCase}
@param test: The test which this is about.
@type error: L{failure.Failure}
@param error: The error which this test failed with.
@type todo: L{unittest.Todo}
@param todo: The reason for the test's TODO status.
"""
def addUnexpectedSuccess(test, todo):
"""
Record that the given test failed, and was expected to do so.
@type test: L{pyunit.TestCase}
@param test: The test which this is about.
@type todo: L{unittest.Todo}
@param todo: The reason for the test's TODO status.
"""
def addSkip(test, reason):
"""
Record that a test has been skipped for the given reason.
@param test: The test that has been skipped.
@param reason: An object that the test case has specified as the reason
for skipping the test.
"""
def printSummary():
"""
Deprecated in Twisted 8.0, use L{done} instead.
Present a summary of the test results.
"""
def printErrors():
"""
Deprecated in Twisted 8.0, use L{done} instead.
Present the errors that have occured during the test run. This method
will be called after all tests have been run.
"""
def write(string):
"""
Deprecated in Twisted 8.0, use L{done} instead.
Display a string to the user, without appending a new line.
"""
def writeln(string):
"""
Deprecated in Twisted 8.0, use L{done} instead.
Display a string to the user, appending a new line.
"""
def wasSuccessful():
"""
Return a boolean indicating whether all test results that were reported
to this reporter were successful or not.
"""
def done():
"""
Called when the test run is complete.
This gives the result object an opportunity to display a summary of
information to the user. Once you have called C{done} on an
L{IReporter} object, you should assume that the L{IReporter} object is
no longer usable.
"""
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