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Petitest

Gem Version Documentation

A minimal solid testing framework for Ruby.

demo

Installation

Add this line to your application's Gemfile:

gem "petitest"

And then execute:

bundle

Or install it yourself as:

gem install petitest

Usage

Create your test file

Define a child class of Petitest::Test with #test_xxx methods.

require "petitest/autorun"

class ExampleTest < Petitest::Test
  def test_addition
    assert { 1 + 1 == 100 }
  end
end

Run it as a Ruby script

Run your test file as a Ruby script:

ruby test/example_test.rb
PetitestTest
  #test_one_plus_one_to_be_two


Counts:

  1 tests
  1 passes
  0 failures
  0 skips

Times:

  Started:  2017-03-25T15:29:21.243918+09:00
  Finished: 2017-03-25T15:29:21.244149+09:00
  Total:    0.000231s

If any test failed, exit code 1 is returned, othewise 0.

echo $?
0

Run all tests

Require "rake/testtask" and initialize Rake::TestTask on your Rakefile like:

require "rake/testtask"
Rake::TestTask.new

Run test rake task that you defined in the above code to run all tests:

rake test

Note that Rake::TestTask's default test file pattern is test/test*.rb.

Assertions

Petitest provides only one assertion method, #assert.

assert { foo }

If you need more assertions, use plugins like patitest-assertions.

Configuration

backtrace_filters

Mechanism for filter out unnecessary lines from error backtrace. Each element must be able to respond to #=== method.

Petitest.configuration.backtrace_filters = [
  -> (line) { line.start_with?("/path/to/petitest/lib") },
]

color

Enable colored output.

Petitest.configuration.color = true

color_scheme

Color scheme for colored output.

Petitest.configuration.color_scheme = {
  detail: :cyan,
  error: :red,
  pass: :green,
  skip: :yellow,
}

These color types are available on color scheme configuration:

  • :black
  • :blue
  • :bold
  • :cyan
  • :green
  • :magenta
  • :red
  • :white
  • :yellow

output

Output path for some subscribers.

Petitest.configuration.output = ::STDOUT
Petitest.configuration.output.sync = true

subscribers

Test event subscribers (test reporters are kind of subscribers).

Petitest.configuration.subscribers = [
  ::Petitest::Subscribers::DocomentReportSubscriber.new,
]

These subscribers are provided by default:

  • Petitest::Subscribers::DocumentReportSubscriber (default)
  • Petitest::Subscribers::JsonReportSubscriber
  • Petitest::Subscribers::ProgressReportSubscriber

Official Plugins

Here are some official plugins for Petitest:

For developers

Tree

TestPlan
|---TestGroup 1
|   |---Test 1-1
|   |---Test 1-2
|   |---Test 1-3
|   `---TestGroup1-1
|       |---Test 1-1-1
|       |---Test 1-1-2
|       `---Test 1-1-3
|---TestGroup2
|   |---Test 2-1
|   |---Test 2-2
|   `---Test 2-3
`---TestGroup3
    |---Test 3-1
    |---Test 3-2
    |---Test 3-3
    `---TestGroup3-1
        |---Test 3-1-1
        |---Test 3-1-2
        `---Test 3-1-3

Order

  1. Test 1-1
  2. Test 1-2
  3. Test 1-3
  4. Test 1-1-1
  5. Test 1-1-2
  6. Test 1-1-3
  7. Test 2-1
  8. Test 2-2
  9. Test 2-3
  10. Test 3-1
  11. Test 3-2
  12. Test 3-3
  13. Test 3-1-1
  14. Test 3-1-2
  15. Test 3-1-3

Events

  • #before_running_test_plan(test_plan)
  • #before_running_test_group(test_group)
  • #before_running_test(test)
  • #after_running_test(test)
  • #after_running_test_group(test_group)
  • #after_running_test_plan(test_plan)