module MiniTest::Spec::DSL
Oh look! A MiniTest::Spec::DSL
module! Eat your heart out DHH.
Constants
- 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
andspec_type
Public Instance Methods
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
.
# File lib/minitest/spec.rb, line 177 def after type = nil, &block define_method :teardown do self.instance_eval(&block) super() end end
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
.
# File lib/minitest/spec.rb, line 163 def before type = nil, &block define_method :setup do super() self.instance_eval(&block) end end
Returns the children of this spec.
# File lib/minitest/spec.rb, line 146 def children @children ||= [] end
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 inheritance, so this goes way out of its way to make sure that expectations aren’t inherited.
This is also aliased to specify and doesn’t require a desc
arg.
Hint: If you do want inheritence, use minitest/unit. You can mix and match between assertions and expectations as much as you want.
# File lib/minitest/spec.rb, line 195 def it desc = "anonymous", &block block ||= proc { skip "(no tests defined)" } @specs ||= 0 @specs += 1 name = "test_%04d_%s" % [ @specs, desc ] define_method name, &block self.children.each do |mod| mod.send :undef_method, name if mod.public_method_defined? name end name end
Essentially, define an accessor for name
with block
.
Why use let instead of def? I honestly don’t know.
# File lib/minitest/spec.rb, line 217 def let name, &block define_method name do @_memoized ||= {} @_memoized.fetch(name) { |k| @_memoized[k] = instance_eval(&block) } end end
Register a new type of spec that matches the spec’s description. This method can take either a Regexp and a spec class or a spec class and a block that takes the description and returns true if it matches.
Eg:
register_spec_type(/Controller$/, MiniTest::Spec::Rails)
or:
register_spec_type(MiniTest::Spec::RailsModel) do |desc| desc.superclass == ActiveRecord::Base end
# File lib/minitest/spec.rb, line 114 def register_spec_type(*args, &block) if block then matcher, klass = block, args.first else matcher, klass = *args end TYPES.unshift [matcher, klass] end
Figure out the spec class to use based on a spec’s description. Eg:
spec_type("BlahController") # => MiniTest::Spec::Rails
# File lib/minitest/spec.rb, line 128 def spec_type desc TYPES.find { |matcher, klass| if matcher.respond_to? :call then matcher.call desc else matcher === desc.to_s end }.last end
Another lazy man’s accessor generator. Made even more lazy by setting the name for you to subject
.
# File lib/minitest/spec.rb, line 228 def subject &block let :subject, &block end