1Test2::Tools::Warnings(U3s)er Contributed Perl DocumentatTieosnt2::Tools::Warnings(3)
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6 Test2::Tools::Warnings - Tools to verify warnings.
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9 This is a collection of tools that can be used to test code that issues
10 warnings.
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13 use Test2::Tools::Warnings qw/warns warning warnings no_warnings/;
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15 ok(warns { warn 'a' }, "the code warns");
16 ok(!warns { 1 }, "The code does not warn");
17 is(warns { warn 'a'; warn 'b' }, 2, "got 2 warnings");
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19 ok(no_warnings { ... }, "code did not warn");
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21 like(
22 warning { warn 'xxx' },
23 qr/xxx/,
24 "Got expected warning"
25 );
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27 is(
28 warnings { warn "a\n"; warn "b\n" },
29 [
30 "a\n",
31 "b\n",
32 ],
33 "Got 2 specific warnings"
34 );
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37 All subs are exported by default.
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39 $count = warns { ... }
40 Returns the count of warnings produced by the block. This will
41 always return 0, or a positive integer.
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43 $warning = warning { ... }
44 Returns the first warning generated by the block. If the block
45 produces more than one warning, they will all be shown as notes,
46 and an actual warning will tell you about it.
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48 $warnings_ref = warnings { ... }
49 Returns an arrayref with all the warnings produced by the block.
50 This will always return an array reference. If there are no
51 warnings, this will return an empty array reference.
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53 $bool = no_warnings { ... }
54 Return true if the block has no warnings. Returns false if there
55 are warnings.
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58 The source code repository for Test2-Suite can be found at
59 https://github.com/Test-More/Test2-Suite/.
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62 Chad Granum <exodist@cpan.org>
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65 Chad Granum <exodist@cpan.org>
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68 Copyright 2018 Chad Granum <exodist@cpan.org>.
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70 This program is free software; you can redistribute it and/or modify it
71 under the same terms as Perl itself.
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73 See http://dev.perl.org/licenses/
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77perl v5.32.0 2020-12-16 Test2::Tools::Warnings(3)