1Metrics::Any::Adapter::UTseesrt(C3o)ntributed Perl DocumMeenttraitciso:n:Any::Adapter::Test(3)
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NAME

6       "Metrics::Any::Adapter::Test" - a metrics reporting adapter for unit
7       testing
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SYNOPSIS

10          use Test::More;
11          use Metrics::Any::Adapter 'Test';
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13          {
14             Metrics::Any::Adapter::Test->clear;
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16             # perform some work in the code under test
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18             is( Metrics::Any::Adapter::Test->metrics,
19                "an_expected_metric = 1\n",
20                'Metrics were reported while doing something'
21             );
22          }
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DESCRIPTION

25       This Metrics::Any adapter type stores reported metrics locally,
26       allowing access to them by the "metrics" method. This is useful to use
27       in a unit test to check that the code under test reports the correct
28       metrics.
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30       This adapter supports timer metrics by storing the count and total
31       duration.
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33       For predictable output of timer metrics in unit tests, a unit test may
34       wish to use the "override_timer_duration" method.
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METHODS

37   metrics
38          $result = Metrics::Any::Adapter::Test->metrics
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40       This class method returns a string describing all of the stored metric
41       values.  Each is reported on a line formatted as
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43          name = value
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45       Each line, including the final one, is terminated by a linefeed. The
46       metrics are sorted alphabetically. Any multi-part metric names will be
47       joined with underscores ("_").
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49       Metrics that have additional labels are formatted with additional label
50       names and label values in declared order after the name and before the
51       "=" symbol:
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53          name l1:v1 l2:v2 = value
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55   clear
56          Metrics::Any::Adapter::Test->clear
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58       This class method removes all of the stored values of reported metrics.
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60   override_timer_duration
61          Metrics::Any::Adapter::Test->override_timer_duration( $duration )
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63       This class method sets a duration value, that any subsequent call to
64       "inc_timer" will use instead of the value the caller actually passed
65       in. This will ensure reliably predictable output in unit tests.
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67       Any value set here will be cleared by "clear".
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AUTHOR

70       Paul Evans <leonerd@leonerd.org.uk>
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74perl v5.34.0                      2021-07-25    Metrics::Any::Adapter::Test(3)
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