Class: MiniTest::Spec

Inherits:
Unit::TestCase show all
Defined in:
lib/minitest/spec.rb,
lib/minitest/benchmark.rb

Overview

MiniTest::Spec – The faster, better, less-magical spec framework!

For a list of expectations, see Object.

Constant Summary collapse

TYPES =

Contains pairs of matchers and Spec classes to be used to calculate the superclass of a top-level describe. This allows for automatically customizable spec types.

See: register_spec_type and spec_type

[[//, MiniTest::Spec]]
@@describe_stack = 
[]

Constants inherited from Unit::TestCase

Unit::TestCase::PASSTHROUGH_EXCEPTIONS, Unit::TestCase::SUPPORTS_INFO_SIGNAL

Instance Attribute Summary

Attributes inherited from Unit::TestCase

#__name__

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Unit::TestCase

#assert_performance, #assert_performance_constant, #assert_performance_exponential, #assert_performance_linear, #assert_performance_power, bench_exp, bench_linear, benchmark_methods, benchmark_suites, #fit_error, #fit_exponential, #fit_linear, #fit_power, inherited, #io, #io?, #passed?, reset, #run, #setup, #sigma, #teardown, test_methods, test_order, test_suites, #validation_for_fit

Methods included from Assertions

#_assertions, #_assertions=, #assert, #assert_block, #assert_empty, #assert_equal, #assert_in_delta, #assert_in_epsilon, #assert_includes, #assert_instance_of, #assert_kind_of, #assert_match, #assert_nil, #assert_operator, #assert_output, #assert_raises, #assert_respond_to, #assert_same, #assert_send, #assert_silent, #assert_throws, #capture_io, #exception_details, #flunk, #message, #mu_pp, #pass, #refute, #refute_empty, #refute_equal, #refute_in_delta, #refute_in_epsilon, #refute_includes, #refute_instance_of, #refute_kind_of, #refute_match, #refute_nil, #refute_operator, #refute_respond_to, #refute_same, #skip

Constructor Details

#initialize(name) ⇒ Spec

:nodoc:



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# File 'lib/minitest/spec.rb', line 152

def initialize name # :nodoc:
  super
  @@current_spec = self
end

Class Method Details

.after(type = :each, &block) ⇒ Object

Define an ‘after’ action. Inherits the way normal methods should.

NOTE: type is ignored and is only there to make porting easier.

Equivalent to MiniTest::Unit::TestCase#teardown.



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# File 'lib/minitest/spec.rb', line 201

def self.after type = :each, &block
  raise "unsupported after type: #{type}" unless type == :each
  define_inheritable_method :teardown, &block
end

.before(type = :each, &block) ⇒ Object

Define a ‘before’ action. Inherits the way normal methods should.

NOTE: type is ignored and is only there to make porting easier.

Equivalent to MiniTest::Unit::TestCase#setup.



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# File 'lib/minitest/spec.rb', line 189

def self.before type = :each, &block
  raise "unsupported before type: #{type}" unless type == :each
  define_inheritable_method :setup, &block
end

.bench(name, &block) ⇒ Object

This is used to define a new benchmark method. You usually don’t use this directly and is intended for those needing to write new performance curve fits (eg: you need a specific polynomial fit).

See ::bench_performance_linear for an example of how to use this.



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# File 'lib/minitest/benchmark.rb', line 311

def self.bench name, &block
  define_method "bench_#{name.gsub(/\W+/, '_')}", &block
end

.bench_performance_constant(name, threshold = 0.99, &work) ⇒ Object

Create a benchmark that verifies that the performance is constant.

describe "my class" do
  bench_performance_constant "zoom_algorithm!" do
    @obj.zoom_algorithm!
  end
end



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# File 'lib/minitest/benchmark.rb', line 346

def self.bench_performance_constant name, threshold = 0.99, &work
  bench name do
    assert_performance_constant threshold, &work
  end
end

.bench_performance_exponential(name, threshold = 0.99, &work) ⇒ Object

Create a benchmark that verifies that the performance is exponential.

describe "my class" do
  bench_performance_exponential "algorithm" do
    @obj.algorithm
  end
end



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# File 'lib/minitest/benchmark.rb', line 361

def self.bench_performance_exponential name, threshold = 0.99, &work
  bench name do
    assert_performance_exponential threshold, &work
  end
end

.bench_performance_linear(name, threshold = 0.99, &work) ⇒ Object

Create a benchmark that verifies that the performance is linear.

describe "my class" do
  bench_performance_linear "fast_algorithm", 0.9999 do
    @obj.fast_algorithm
  end
end



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# File 'lib/minitest/benchmark.rb', line 331

def self.bench_performance_linear name, threshold = 0.99, &work
  bench name do
    assert_performance_linear threshold, &work
  end
end

.bench_range(&block) ⇒ Object 



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# File 'lib/minitest/benchmark.rb', line 315

def self.bench_range &block
  return super unless block

  meta = (class << self; self; end)
  meta.send :define_method, "bench_range", &block
end

.children ⇒ Object 



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# File 'lib/minitest/spec.rb', line 148

def self.children
  @children ||= []
end

.current ⇒ Object

:nodoc:



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# File 'lib/minitest/spec.rb', line 144

def self.current # :nodoc:
  @@current_spec
end

.define_inheritable_method(name, &block) ⇒ Object

Spec users want setup/teardown to be inherited and NOTHING ELSE. It is almost like method reuse is lost on them.



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# File 'lib/minitest/spec.rb', line 167

def self.define_inheritable_method name, &block # :nodoc:
  # regular super() warns
  super_method = self.superclass.instance_method name

  teardown     = name.to_s == "teardown"
  super_before = super_method && ! teardown
  super_after  = super_method && teardown

  define_method name do
    super_method.bind(self).call if super_before
    instance_eval(&block)
    super_method.bind(self).call if super_after
  end
end

.describe_stack ⇒ Object

:nodoc:



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# File 'lib/minitest/spec.rb', line 140

def self.describe_stack # :nodoc:
  @@describe_stack
end

.it(desc, &block) ⇒ Object

Define an expectation with name desc. Name gets morphed to a proper test method name. For some freakish reason, people who write specs don’t like class inheritence, so this goes way out of its way to make sure that expectations aren’t inherited.

Hint: If you do want inheritence, use minitest/unit. You can mix and match between assertions and expectations as much as you want.



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# File 'lib/minitest/spec.rb', line 215

def self.it desc, &block
  block ||= proc { skip "(no tests defined)" }

  @specs ||= 0
  @specs += 1

  name = "test_%04d_%s" % [ @specs, desc.gsub(/\W+/, '_').downcase ]

  define_method name, &block

  self.children.each do |mod|
    mod.send :undef_method, name if mod.public_method_defined? name
  end
end

.nuke_test_methods! ⇒ Object

:nodoc:



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# File 'lib/minitest/spec.rb', line 157

def self.nuke_test_methods! # :nodoc:
  self.public_instance_methods.grep(/^test_/).each do |name|
    self.send :undef_method, name
  end
end

.register_spec_type(matcher, klass) ⇒ Object

Register a new type of spec that matches the spec’s description. Eg:

register_spec_plugin(/Controller$/, MiniTest::Spec::Rails)



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# File 'lib/minitest/spec.rb', line 125

def self.register_spec_type matcher, klass
  TYPES.unshift [matcher, klass]
end

.spec_type(desc) ⇒ Object

Figure out the spec class to use based on a spec’s description. Eg:

spec_type("BlahController") # => MiniTest::Spec::Rails



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# File 'lib/minitest/spec.rb', line 134

def self.spec_type desc
  desc = desc.to_s
  TYPES.find { |re, klass| re === desc }.last
end