Test2::Manual::Testing(3)

NAME
Test2::Manual::Testing - Hub for documentation about writing tests with Test2.

DESCRIPTION
This document outlines all the tutorials and POD that cover writing tests. This section does not cover any Test2 internals, nor does it cover how to write new tools, for that see Test2::Manual::Tooling.

NAMESPACE MAP
When writing tests there are a couple namespaces to focus on:

Test2::Tools::*
    This is where toolsets can be found. A toolset exports functions that help you make assertions about your code. Toolsets will only export functions, they should not ever have extra/global effects.

Test2::Plugins::*
    This is where plugins live. Plugins should not export anything, but instead will introduce or alter behaviors for Test2 in general. These behaviors may be lexically scoped, or they may be global.

Test2::Bundle::*
    Bundles combine toolsets and plugins together to reduce your boilerplate. First time test writers are encouraged to start with the Test2::V0 bundle (which is an exception to the namespace rule as it does not live under "Test2::Bundle::"). If you find yourself loading several plugins and toolsets over and over again you could benefit from writing your own bundle.

Test2::Require::*
    This namespace contains modules that will cause a test to skip if specific conditions are not met. Use this if you have tests that only run on specific perl versions, or require external libraries that may not always be available.

LISTING DEPENDENCIES
When you use Test2, specifically things included in Test2::Suite you need to list them in your modules test dependencies. It is important to note that you should list the tools/plugins/bundles you need, you should not simply list Test2::Suite as your dependency. Test2::Suite is a living distribution intended to represent the "current" best practices. As tools, plugins, and bundles evolve, old ones will become discouraged and potentially be moved from Test2::Suite into their own distributions.

One goal of Test2::Suite is to avoid breaking backwards compatibility. Another goal is to always improve by replacing bad designs with better ones. When necessary Test2::Suite will break old modules out into separate dists and define new ones, typically with a new bundle. In short, if we feel the need to break something we will do so by creating a new bundle, and discouraging the old one, but we will not break the old one.

So for example, if you use Test2::V0, and Dist::Zilla you should have this in your config:

    [Prereqs / TestRequires]
    Test2::V0 = 0.000060

You SHOULD NOT do this:

    [Prereqs / TestRequires]
    Test2::Suite = 0.000060

Because Test2::V0 might not always be part of Test2::Suite.

When writing new tests you should often check Test2::Suite to see what the current recommended bundle is.

Dist::Zilla

    [Prereqs / TestRequires]
    Test2::V0 = 0.000060

ExtUtils::MakeMaker

    my %WriteMakefileArgs = (
      ...,
      "TEST_REQUIRES" => {
        "Test2::V0" => "0.000060"
      },
      ...
    );

Module::Install

    test_requires 'Test2::V0' => '0.000060';

Module::Build

    my $build = Module::Build->new(
        ...,
        test_requires => {
            "Test2::V0" => "0.000060",
        },
        ...
    );

TUTORIALS

  SIMPLE/INTRODUCTION TUTORIAL
Test2::Manual::Testing::Introduction is an introduction to writing tests using the Test2 tools.

  MIGRATING FROM TEST::BUILDER and TEST::MORE
Test2::Manual::Testing::Migrating Is a tutorial for converting old tests that use Test::Builder or Test::More to the newer Test2 way of doing things.

  ADVANCED PLANNING
Test2::Manual::Testing::Planning is a tutorial on the many ways to set a plan.

  TODO TESTS
Test2::Manual::Testing::Todo is a tutorial for markings tests as TODO.

  SUBTESTS
COMING SOON.

  COMPARISONS
COMING SOON.

SIMPLE COMPARISONS

COMING SOON.

ADVANCED COMPARISONS

COMING SOON.

  TESTING EXPORTERS
COMING SOON.

  TESTING CLASSES
COMING SOON.

  TRAPPING
COMING SOON.

TRAPPING EXCEPTIONS

COMING SOON.

TRAPPING WARNINGS

COMING SOON.

  DEFERRED TESTING
COMING SOON.

  MANAGING ENCODINGS
COMING SOON.

  AUTO-ABORT ON FAILURE
COMING SOON.

  CONTROLLING RANDOM BEHAVIOR
COMING SOON.

  WRITING YOUR OWN BUNDLE
COMING SOON.

TOOLSET DOCUMENTATION
COMING SOON.

PLUGIN DOCUMENTATION
COMING SOON.

BUNDLE DOCUMENTATION
COMING SOON.

REQUIRE DOCUMENTATION
COMING SOON.

SEE ALSO
Test2::Manual - Primary index of the manual.

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

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS
Chad Granum <exodist@cpan.org>

COPYRIGHT
Copyright 2018 Chad Granum <exodist@cpan.org>.

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/