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implemented by overriding the 'setUp' and 'tearDown' methods respectively.
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* failureException: determines which exception will be raised when
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r�t �n | j j r�t �W || _n|| _0 dS )aP Return a context manager that will return the enclosed block
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zTestCase._formatMessagec O s* t || �}z|�d||�W d}S d}0 dS )a= Fail unless an exception of class expected_exception is raised
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�zTestCase.assertRaisesc O s t || �}|�d||�S )a� Fail unless a warning of class warnClass is triggered
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with self.assertWarns(SomeWarning):
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An optional keyword argument 'msg' can be provided when assertWarns
is used as a context object.
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warning as the 'warning' attribute; similarly, the 'filename'
and 'lineno' attributes give you information about the line
of Python code from which the warning was triggered.
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zTestCase.assertWarnsc C s ddl m} || ||�S )a� Fail unless a log message of level *level* or higher is emitted
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assertLogs s zTestCase.assertLogsc C sF t |�t |�u r@| j�t |��}|dur@t|t�r<t| |�}|S | jS )a Get a detailed comparison function for the types of the two args.
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