1Test2::API::Instance(3)User Contributed Perl DocumentatioTnest2::API::Instance(3)
2
6 Test2::API::Instance - Object used by Test2::API under the hood
7
9 This object encapsulates the global shared state tracked by Test2. A
10 single global instance of this package is stored (and obscured) by the
11 Test2::API package.
12 There is no reason to directly use this package. This package is
14 documented for completeness. This package can change, or go away
15 completely at any time. Directly using, or monkeypatching this package
16 is not supported in any way shape or form.
17
19 use Test2::API::Instance;
20 my $obj = Test2::API::Instance->new;
22 $pid = $obj->pid
24 PID of this instance.
25 $obj->tid
27 Thread ID of this instance.
28 $obj->reset()
30 Reset the object to defaults.
31 $obj->load()
33 Set the internal state to loaded, and run and stored post-load
34 callbacks.
35 $bool = $obj->loaded
37 Check if the state is set to loaded.
38 $arrayref = $obj->post_load_callbacks
40 Get the post-load callbacks.
41 $obj->add_post_load_callback(sub { ... })
43 Add a post-load callback. If "load()" has already been called then
44 the callback will be immediately executed. If "load()" has not been
45 called then the callback will be stored and executed later when
46 "load()" is called.
47 $hashref = $obj->contexts()
49 Get a hashref of all active contexts keyed by hub id.
50 $arrayref = $obj->context_acquire_callbacks
52 Get all context acquire callbacks.
53 $arrayref = $obj->context_init_callbacks
55 Get all context init callbacks.
56 $arrayref = $obj->context_release_callbacks
58 Get all context release callbacks.
59 $arrayref = $obj->pre_subtest_callbacks
61 Get all pre-subtest callbacks.
62 $obj->add_context_init_callback(sub { ... })
64 Add a context init callback. Subs are called every time a context
65 is created. Subs get the newly created context as their only
66 argument.
67 $obj->add_context_release_callback(sub { ... })
69 Add a context release callback. Subs are called every time a
70 context is released. Subs get the released context as their only
71 argument. These callbacks should not call release on the context.
72 $obj->add_pre_subtest_callback(sub { ... })
74 Add a pre-subtest callback. Subs are called every time a subtest is
75 going to be run. Subs get the subtest name, coderef, and any
76 arguments.
77 $obj->set_exit()
79 This is intended to be called in an "END { ... }" block. This will
80 look at test state and set $?. This will also call any end
81 callbacks, and wait on child processes/threads.
82 $obj->set_ipc_pending($val)
84 Tell other processes and threads there is a pending event. $val
85 should be a unique value no other thread/process will generate.
86 Note: This will also make the current process see a pending event.
88 $pending = $obj->get_ipc_pending()
90 This returns -1 if it is not possible to know.
91 This returns 0 if there are no pending events.
93 This returns 1 if there are pending events.
95 $timeout = $obj->ipc_timeout;
97 $obj->set_ipc_timeout($timeout);
98 How long to wait for child processes and threads before aborting.
99 $drivers = $obj->ipc_drivers
101 Get the list of IPC drivers.
102 $obj->add_ipc_driver($DRIVER_CLASS)
104 Add an IPC driver to the list. The most recently added IPC driver
105 will become the global one during initialization. If a driver is
106 added after initialization has occurred a warning will be
107 generated:
108 "IPC driver $driver loaded too late to be used as the global ipc driver"
110 $bool = $obj->ipc_polling
112 Check if polling is enabled.
113 $obj->enable_ipc_polling
115 Turn on polling. This will cull events from other processes and
116 threads every time a context is created.
117 $obj->disable_ipc_polling
119 Turn off IPC polling.
120 $bool = $obj->no_wait
122 $bool = $obj->set_no_wait($bool)
123 Get/Set no_wait. This option is used to turn off process/thread
124 waiting at exit.
125 $arrayref = $obj->exit_callbacks
127 Get the exit callbacks.
128 $obj->add_exit_callback(sub { ... })
130 Add an exit callback. This callback will be called by "set_exit()".
131 $bool = $obj->finalized
133 Check if the object is finalized. Finalization happens when either
134 "ipc()", "stack()", or "format()" are called on the object. Once
135 finalization happens these fields are considered unchangeable (not
136 enforced here, enforced by Test2).
137 $ipc = $obj->ipc
139 Get the one true IPC instance.
140 $obj->ipc_disable
142 Turn IPC off
143 $bool = $obj->ipc_disabled
145 Check if IPC is disabled
146 $stack = $obj->stack
148 Get the one true hub stack.
149 $formatter = $obj->formatter
151 Get the global formatter. By default this is the
152 'Test2::Formatter::TAP' package. This could be any package that
153 implements the "write()" method. This can also be an instantiated
154 object.
155 $bool = $obj->formatter_set()
157 Check if a formatter has been set.
158 $obj->add_formatter($class)
160 $obj->add_formatter($obj)
161 Add a formatter. The most recently added formatter will become the
162 global one during initialization. If a formatter is added after
163 initialization has occurred a warning will be generated:
164 "Formatter $formatter loaded too late to be used as the global formatter"
166 $obj->set_add_uuid_via(sub { ... })
168 $sub = $obj->add_uuid_via()
169 This allows you to provide a UUID generator. If provided UUIDs will
170 be attached to all events, hubs, and contexts. This is useful for
171 storing, tracking, and linking these objects.
172 The sub you provide should always return a unique identifier. Most
174 things will expect a proper UUID string, however nothing in
175 Test2::API enforces this.
176 The sub will receive exactly 1 argument, the type of thing being
178 tagged 'context', 'hub', or 'event'. In the future additional
179 things may be tagged, in which case new strings will be passed in.
180 These are purely informative, you can (and usually should) ignore
181 them.
182
184 The source code repository for Test2 can be found at
185 http://github.com/Test-More/test-more/.
186
188 Chad Granum <exodist@cpan.org>
189
191 Chad Granum <exodist@cpan.org>
192
194 Copyright 2020 Chad Granum <exodist@cpan.org>.
195 This program is free software; you can redistribute it and/or modify it
197 under the same terms as Perl itself.
198 See http://dev.perl.org/licenses/
200perl v5.32.0 2020-10-15 Test2::API::Instance(3)