1Test::SubCalls(3) User Contributed Perl Documentation Test::SubCalls(3)
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6 Test::SubCalls - Track the number of times subs are called
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9 version 1.10
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12 use Test::SubCalls;
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14 # Start tracking calls to a named sub
15 sub_track( 'Foo::foo' );
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17 # Run some test code
18 ...
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20 # Test that some sub deep in the codebase was called
21 # a specific number of times.
22 sub_calls( 'Foo::foo', 5 );
23 sub_calls( 'Foo::foo', 5, 'Use a custom test message' );
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25 # Reset the counts for one or all subs
26 sub_reset( 'Foo::foo' );
27 sub_reset_all();
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30 There are a number of different situations (like testing caching code)
31 where you want to want to do a number of tests, and then verify that
32 some underlying subroutine deep within the code was called a specific
33 number of times.
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35 This module provides a number of functions for doing testing in this
36 way in association with your normal Test::More (or similar) test
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40 In the nature of test modules, all functions are exported by default.
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42 sub_track $subname
43 The "sub_track" function creates a new call tracker for a named
44 function.
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46 The sub to track must be provided by name, references to the function
47 itself are insufficient.
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49 Returns true if added, or dies on error.
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51 sub_calls $subname, $expected_calls [, $message ]
52 The "sub_calls" function is the primary (and only) testing function
53 provided by "Test::SubCalls". A single call will represent one test in
54 your plan.
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56 It takes the subroutine name as originally provided to "sub_track", the
57 expected number of times the subroutine should have been called, and an
58 optional test message.
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60 If no message is provided, a default message will be provided for you.
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62 Test is ok if the number of times the sub has been called matches the
63 expected number, or not ok if not.
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65 sub_reset $subname
66 To prevent repeat users from having to take before and after counts
67 when they start testing from after zero, the "sub_reset" function has
68 been provided to reset a sub call counter to zero.
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70 Returns true or dies if the sub name is invalid or not currently
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73 sub_reset_all
74 Provided mainly as a convenience, the "sub_reset_all" function will
75 reset all the counters currently defined.
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77 Returns true.
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80 Bugs should be submitted via the CPAN bug tracker, located at
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82 <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-SubCalls>
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84 For other issues, or commercial enhancement or support, contact the
85 author.
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88 Adam Kennedy <adamk@cpan.org>
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91 <http://ali.as/>, Test::Builder, Test::More, Hook::LexWrap
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94 Copyright 2005 - 2009 Adam Kennedy.
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96 This program is free software; you can redistribute it and/or modify it
97 under the same terms as Perl itself.
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99 The full text of the license can be found in the LICENSE file included
100 with this module.
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104perl v5.30.0 2019-07-26 Test::SubCalls(3)