1Test2::Tools::Basic(3)User Contributed Perl DocumentationTest2::Tools::Basic(3)
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NAME

6       Test2::Tools::Basic - Test2 implementation of the basic testing tools.
7

DESCRIPTION

9       This is a Test2 based implementation of the more basic tools originally
10       provided by Test::More. Not all Test::More tools are provided by this
11       package, only the basic/simple ones. Some tools have been modified for
12       better diagnostics capabilities.
13

SYNOPSIS

15           use Test2::Tools::Basic;
16
17           ok($x, "simple test");
18
19           if ($passing) {
20               pass('a passing test');
21           }
22           else {
23               fail('a failing test');
24           }
25
26           diag "This is a diagnostics message on STDERR";
27           note "This is a diagnostics message on STDOUT";
28
29           {
30               my $todo = todo "Reason for todo";
31               ok(0, "this test is todo");
32           }
33
34           ok(1, "this test is not todo");
35
36           todo "reason" => sub {
37               ok(0, "this test is todo");
38           };
39
40           ok(1, "this test is not todo");
41
42           SKIP: {
43               skip "This will wipe your drive";
44
45               # This never gets run:
46               ok(!system('sudo rm -rf /'), "Wipe drive");
47           }
48
49           done_testing;
50

EXPORTS

52       All subs are exported by default.
53
54   PLANNING
55       plan($num)
56       plan('tests' => $num)
57       plan('skip_all' => $reason)
58           Set the number of tests that are expected. This must be done first
59           or last, never in the middle of testing.
60
61           For legacy compatibility you can specify 'tests' as the first
62           argument before the number. You can also use this to skip all with
63           the 'skip_all' prefix, followed by a reason for skipping.
64
65       skip_all($reason)
66           Set the plan to 0 with a reason, then exit true. This should be
67           used before any tests are run.
68
69       done_testing
70           Used to mark the end of testing. This is a safe way to have a
71           dynamic or unknown number of tests.
72
73       bail_out($reason)
74           Invoked when something has gone horribly wrong: stop everything,
75           kill all threads and processes, end the process with a false exit
76           status.
77
78   ASSERTIONS
79       ok($bool)
80       ok($bool, $name)
81       ok($bool, $name, @diag)
82           Simple assertion. If $bool is true the test passes, and if it is
83           false the test fails. The test name is optional, and all arguments
84           after the name are added as diagnostics message if and only if the
85           test fails. If the test passes all the diagnostics arguments will
86           be ignored.
87
88       pass()
89       pass($name)
90           Fire off a passing test (a single Ok event). The name is optional
91
92       fail()
93       fail($name)
94       fail($name, @diag)
95           Fire off a failing test (a single Ok event). The name and
96           diagnostics are optional.
97
98   DIAGNOSTICS
99       diag(@messages)
100           Write diagnostics messages. All items in @messages will be joined
101           into a single string with no separator. When using TAP, diagnostics
102           are sent to STDERR.
103
104       note(@messages)
105           Write note-diagnostics messages. All items in @messages will be
106           joined into a single string with no separator. When using TAP,
107           notes are sent to STDOUT.
108
109   META
110       $todo = todo($reason)
111       todo $reason => sub { ... }
112           This is used to mark some results as TODO. TODO means that the test
113           may fail, but will not cause the overall test suite to fail.
114
115           There are two ways to use this. The first is to use a codeblock,
116           and the TODO will only apply to the codeblock.
117
118               ok(1, "before"); # Not TODO
119
120               todo 'this will fail' => sub {
121                   # This is TODO, as is any other test in this block.
122                   ok(0, "blah");
123               };
124
125               ok(1, "after"); # Not TODO
126
127           The other way is to use a scoped variable. TODO will end when the
128           variable is destroyed or set to undef.
129
130               ok(1, "before"); # Not TODO
131
132               {
133                   my $todo = todo 'this will fail';
134
135                   # This is TODO, as is any other test in this block.
136                   ok(0, "blah");
137               };
138
139               ok(1, "after"); # Not TODO
140
141           This is the same thing, but without the "{...}" scope.
142
143               ok(1, "before"); # Not TODO
144
145               my $todo = todo 'this will fail';
146
147               ok(0, "blah"); # TODO
148
149               $todo = undef;
150
151               ok(1, "after"); # Not TODO
152
153       skip($why)
154       skip($why, $count)
155           This is used to skip some tests. This requires you to wrap your
156           tests in a block labeled "SKIP:". This is somewhat magical. If no
157           $count is specified then it will issue a single result. If you
158           specify $count it will issue that many results.
159
160               SKIP: {
161                   skip "This will wipe your drive";
162
163                   # This never gets run:
164                   ok(!system('sudo rm -rf /'), "Wipe drive");
165               }
166

SOURCE

168       The source code repository for Test2-Suite can be found at
169       https://github.com/Test-More/Test2-Suite/.
170

MAINTAINERS

172       Chad Granum <exodist@cpan.org>
173

AUTHORS

175       Chad Granum <exodist@cpan.org>
176

178       Copyright 2018 Chad Granum <exodist@cpan.org>.
179
180       This program is free software; you can redistribute it and/or modify it
181       under the same terms as Perl itself.
182
183       See http://dev.perl.org/licenses/
184
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187perl v5.30.1                      2020-01-31            Test2::Tools::Basic(3)
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