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Hamcrest matchers useful throughout the test suite.
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The implementation of L{after}.
@ivar f: The function to apply.
@ivar m: The matcher to use on the result.
@ivar _e: After trying to apply the function fails with an exception, the
exception that was raised. This can later be used by
L{describe_mismatch}.
�f�m�returnNc �. � || _ || _ d | _ y �N)r r �_e)�selfr r s �=/usr/lib/python3/dist-packages/twisted/trial/test/matchers.py�__init__z_MatchAfter.__init__! s � �������'+��� �itemc � � | j |� }| j j |� S # t $ r}|| _ Y d}~yd}~ww xY w)zI
Apply the function and delegate matching on the result.
NF)r r �matches� Exceptionr )r r � transformed�es r �_matchesz_MatchAfter._matches& sE � � /� �&�&��,�K�
�6�6�>�>�+�.� .�� � ��D�G��� �s �. � A�A�A�mismatch_descriptionc �� �� | j �t �| � ||� y|j t | j
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Describe the mismatching item or the exception that occurred while
pre-processing it.
@note: Since the exception reporting here depends on mutable state it
will only work as long as PyHamcrest calls methods in the right
order. The PyHamcrest Matcher interface doesn't seem to allow
implementing this functionality in a more reliable way (see the
implementation of L{assert_that}).
N�(z ) raised
z: )r �super�describe_mismatch� append_textr r � __class__)r r r! r' s �r r% z _MatchAfter.describe_mismatch2 sh �� � �7�7�?� �G� %�d�,@� A� � ,� ,�%�d�f�f�-�.�a��x�z�%�d�g�g�&7�&7�8�9��D�G�G�9�F�
r � descriptionc �x � |j d| j � d�� | j j |� y)zE
Create a text description of the match requirement.
z[after z] N)r& r r � describe_to)r r( s r r* z_MatchAfter.describe_toE s1 � � � � �'�$�&�&��� 4�5� �����;�'r )�__name__�
__module__� __qualname__�__doc__r r r
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Create a matcher which calls C{f} and uses C{m} to match the result.
)r )r r s r �afterr2 M s � � �q�!� � r �encodingc �@ �� dt dt f�fd� }t || � S )ze
Create a matcher which matches a L{FilePath} the contents of which are
matched by L{m}.
�pr c � �� | j � 5 }|j � j �� cd d d � S # 1 sw Y y xY wr )�open�read�decode)r5 r r3 s �r �
getContentz fileContents.<locals>.getContentZ s5 �� �
�V�V�X� -���6�6�8�?�?�8�,� -� -� -�s � ;�A)r
�strr2 )r r3 r: s ` r � fileContentsr< T s% �� � -�i� -�C� -�
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