Project: RSpec Expectations 2.12

Publisher: RSpec

define diffable matcher

When a matcher is defined as diffable, and the --diff
flag is set, the output will include a diff of the submitted
objects.

Scenarios

@wip define a diffable matcher

Given

a file named "diffable_matcher_spec.rb" with:

RSpec::Matchers.define :be_just_like do |expected|
  match do |actual|
    actual == expected
  end
  
  diffable
end

describe "this" do
  it {should be_just_like("that")}
end

When

I run rspec ./diffable_matcher_spec.rb --diff

Then

the exit status should not be 0

And

the output should contain "should be just like that"

And

the output should contain "Diff:\[email protected]@ -1,2 +1,2 @@\n-that\n+this"

Last published over 5 years ago by alindeman.

define diffable matcher

RSpec Expectations settings