class Minitest::TestTask

Minitest::TestTask is a rake helper that generates several rake tasks under the main test task’s name-space.

task <name>      :: the main test task
task <name>:cmd  :: prints the command to use
task <name>:deps :: runs each test file by itself to find dependency errors
task <name>:slow :: runs the tests and reports the slowest 25 tests.

Examples:

Minitest::TestTask.create

The most basic and default setup.

Minitest::TestTask.create :my_tests

The most basic/default setup, but with a custom name

Minitest::TestTask.create :unit do |t|
  t.test_globs = ["test/unit/**/*_test.rb"]
  t.warning = false
end

Customize the name and only run unit tests.

NOTE: To hook this task up to the default, make it a dependency:

task default: :unit

Attributes

extra_args [RW]

Extra arguments to pass to the tests. Defaults empty but gets populated by a number of enviroment variables:

N (-n flag): a string or regexp of tests to run.
X (-e flag): a string or regexp of tests to exclude.
A (arg): quick way to inject an arbitrary argument (eg A=–help).

See process_env

framework [RW]

The code to load the framework. Defaults to requiring minitest/autorun…

Why do I have this as an option?

libs [RW]

Extra library directories to include. Defaults to %w[lib test .]. Also uses $MT_LIB_EXTRAS allowing you to dynamically override/inject directories for custom runs.

name [RW]

The name of the task and base name for the other tasks generated.

test_globs [RW]

File globs to find test files. Defaults to something sensible to find test files under the test directory.

test_prelude [RW]

Optional: Additional ruby to run before the test framework is loaded.

verbose [RW]

Print out commands as they run. Defaults to Rake’s trace (-t flag) option.

warning [RW]

Turn on ruby warnings (-w flag). Defaults to true.

Public Class Methods

create (name = :test, &block)

Source

# File lib/minitest/test_task.rb, line 50
def self.create name = :test, &block
  task = new name
  task.instance_eval(&block) if block
  task.process_env
  task.define
  task
end

Create several test-oriented tasks under name. Takes an optional block to customize variables.

Public Instance Methods

make_test_cmd (globs = test_globs)

Source

# File lib/minitest/test_task.rb, line 259
def make_test_cmd globs = test_globs
  tests = []
  tests.concat Dir[*globs].sort.shuffle # TODO: SEED -> srand first?
  tests.map! { |f| %(require "#{f}") }

  runner = []
  runner << test_prelude if test_prelude
  runner << framework
  runner.concat tests
  runner = runner.join "; "

  args  = []
  args << "-I#{libs.join File::PATH_SEPARATOR}" unless libs.empty?
  args << "-w" if warning
  args << "-e"
  args << "'#{runner}'"
  args << "--"
  args << extra_args.map(&:shellescape)

  args.join " "
end

Generate the test command-line.

process_env ()

Source

# File lib/minitest/test_task.rb, line 144
def process_env
  warn "TESTOPTS is deprecated in Minitest::TestTask. Use A instead" if
    ENV["TESTOPTS"]
  warn "FILTER is deprecated in Minitest::TestTask. Use A instead" if
    ENV["FILTER"]
  warn "N is deprecated in Minitest::TestTask. Use MT_CPU instead" if
    ENV["N"] && ENV["N"].to_i > 0

  lib_extras = (ENV["MT_LIB_EXTRAS"] || "").split File::PATH_SEPARATOR
  self.libs[0, 0] = lib_extras

  extra_args << "-n" << ENV["N"]                      if ENV["N"]
  extra_args << "-e" << ENV["X"]                      if ENV["X"]
  extra_args.concat Shellwords.split(ENV["TESTOPTS"]) if ENV["TESTOPTS"]
  extra_args.concat Shellwords.split(ENV["FILTER"])   if ENV["FILTER"]
  extra_args.concat Shellwords.split(ENV["A"])        if ENV["A"]

  ENV.delete "N" if ENV["N"]

  # TODO? RUBY_DEBUG = ENV["RUBY_DEBUG"]
  # TODO? ENV["RUBY_FLAGS"]

  extra_args.compact!
end

Extract variables from the environment and convert them to command line arguments. See extra_args.

Environment Variables:

MT_LIB_EXTRAS: Extra libs to dynamically override/inject for custom runs.
N: Tests to run (string or /regexp/).
X: Tests to exclude (string or /regexp/).
A: Any extra arguments. Honors shell quoting.

Deprecated:

TESTOPTS: For argument passing, use A.
N: For parallel testing, use MT_CPU.
FILTER: Same as TESTOPTS.