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define matcher outside rspec
In order to express my domain clearly in my code examples
As a non-rspec user
I want a shortcut to define custom matchers
- define a matcher with default messages
a file named "test_multiples.rb" with:
require "rspec/expectations" require "test/unit" RSpec::Matchers.define :be_a_multiple_of do |expected| match do |actual| actual % expected == 0 end end class Test::Unit::TestCase include RSpec::Matchers end class TestMultiples < Test::Unit::TestCase def test_9_should_be_a_multiple_of_3 9.should be_a_multiple_of(3) end def test_9_should_be_a_multiple_of_4 9.should be_a_multiple_of(4) end end
- I run "ruby test_multiples.rb"
- the exit status should not be 0
- the output should contain "expected 9 to be a multiple of 4"
- the output should contain "2 tests, 0 assertions, 0 failures, 1 errors"
Last published over 6 years ago by dchelimsky.
RSpec Expectations settings