Test2::Workflow

version 0.000162

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NAME
DESCRIPTION
IMPORTANT CONCEPTS
- BUILD
- RUNNER
- TASK
  - ACTION
  - GROUP
EXPORTS
SEE ALSO
SOURCE
MAINTAINERS
AUTHORS
COPYRIGHT

#NAME

Test2::Workflow - A test workflow is a way of structuring tests using composable units.

#DESCRIPTION

A test workflow is a way of structuring tests using composable units. A well known example of a test workflow is RSPEC. RSPEC is implemented using Test2::Workflow in Test2::Tools::Spec along with several extensions.

#IMPORTANT CONCEPTS

#BUILD

Test2::Workflow::Build

A Build is used to compose tasks. Usually a build object is pushed to the stack before running code that adds tasks to the build. Once the build sub is complete the build is popped and returned. Usually a build is converted into a root task or task group.

#RUNNER

Test2::Workflow::Runner

A runner takes the composed tasks and executes them in the proper order.

#TASK

Test2::Workflow::Task

A task is a unit of work to accomplish. There are 2 main types of task.

#ACTION

An action is the most simple unit used in composition. An action is essentially a name and a codeblock to run.

#GROUP

A group is a task that is composed of other tasks.

#EXPORTS

All exports are optional, you must request the ones you want.

#$parsed = parse_args(args => \@args)

#$parsed = parse_args(args => \@args, level => $L)

#$parsed = parse_args(args => \@args, caller => [caller($L)])

This will parse a "typical" task builders arguments. The @args array MUST contain a name (plain scalar containing text) and also a single CODE reference. The @args array MAY also contain any quantity of line numbers or hashrefs. The resulting data structure will be a single hashref with all the provided hashrefs squashed together, and the 'name', 'code', 'lines' and 'frame' keys set from other arguments.

{
 # All hashrefs from @args get squashed together:
 %squashed_input_hashref_data,
 # @args must have exactly 1 plaintext scalar that is not a number, it
 # is considered the name:
 name => 'name from input args'
 # Integer values are treated as line numbers
 lines => [ 35, 44 ],
 # Exactly 1 coderef must be provided in @args:
 code => \&some_code,
 # 'frame' contains the 'caller' data. This may be passed in directly,
 # obtained from the 'level' parameter, or automatically deduced.
 frame => ['A::Package', 'a_file.pm', 42, ...],
}

#$build = init_root($pkg, %args)

This will initialize (or return the existing) a build for the specified package. %args get passed into the Test2::Workflow::Build constructor. This uses the following defaults (which can be overridden using %args):

name => $pkg,
flat => 1,
iso => 0,
async => 0,
is_root => 1,

Note that %args is completely ignored if the package build has already been initialized.

#$build = root_build($pkg)

This will return the root build for the specified package.

#$build = current_build()

This will return the build currently at the top of the build stack (or undef).

#$build = build($name, \%params, sub { ... })

This will push a new build object onto the build stash then run the provided codeblock. Once the codeblock has finished running the build will be popped off the stack and returned.

See parse_args() for details about argument processing.

#SEE ALSO

#Test2::Tools::Spec: Test2::Tools::Spec is an implementation of RSPEC using this library.

#SOURCE

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

#MAINTAINERS

#Chad Granum <exodist@cpan.org>

#AUTHORS

#Chad Granum <exodist@cpan.org>

#COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/

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