Contents

require 'spec_helper'
require 'mspec/expectations/expectations'
require 'mspec/guards'
require 'mspec/helpers'
require 'mspec/matchers'

describe BeNaNMatcher do
  it "matches when actual is NaN" do
    BeNaNMatcher.new.matches?(nan_value).should == true
  end

  it "does not match when actual is not NaN" do
    BeNaNMatcher.new.matches?(1.0).should == false
    BeNaNMatcher.new.matches?(0).should == false
  end

  it "provides a useful failure message" do
    matcher = BeNaNMatcher.new
    matcher.matches?(0)
    matcher.failure_message.should == ["Expected 0", "to be NaN"]
  end

  it "provides a useful negative failure message" do
    matcher = BeNaNMatcher.new
    matcher.matches?(nan_value)
    matcher.negative_failure_message.should == ["Expected NaN", "not to be NaN"]
  end
end

Version data entries

9 entries across 9 versions & 1 rubygems

Version	Path
mspec-1.9.1	spec/matchers/be_nan_spec.rb
mspec-1.9.0	spec/matchers/be_nan_spec.rb
mspec-1.8.0	spec/matchers/be_nan_spec.rb
mspec-1.7.0	spec/matchers/be_nan_spec.rb
mspec-1.6.0	spec/matchers/be_nan_spec.rb
mspec-1.5.21	spec/matchers/be_nan_spec.rb
mspec-1.5.20	spec/matchers/be_nan_spec.rb
mspec-1.5.19	spec/matchers/be_nan_spec.rb
mspec-1.5.18	spec/matchers/be_nan_spec.rb