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More about adding a collaboratorSyntax Configuration
In addition to the long-supported should
syntax, rspec-expectations
supports an alternate expect
syntax. If you want your project to
only use one syntax, you can configure the available syntaxes.
- Background
-
- Given
-
a file named "syntaxes_spec.rb" with:
describe "using the should syntax" do specify { 3.should eq(3) } specify { 3.should_not eq(4) } specify { lambda { raise "boom" }.should raise_error("boom") } specify { lambda { }.should_not raise_error } end describe "using the expect syntax" do specify { expect(3).to eq(3) } specify { expect(3).not_to eq(4) } specify { expect { raise "boom" }.to raise_error("boom") } specify { expect { }.not_to raise_error } end
- Scenarios
-
- Both syntaxes are available by default
- Disable should syntax
- Disable expect syntax
- Explicitly enable both syntaxes
- Both syntaxes are available by default
-
- When
-
I run
rspec syntaxes_spec.rb
- Then
- the examples should all pass
- Disable should syntax
-
- Given
-
a file named "disable_should_syntax.rb" with:
RSpec.configure do |config| config.expect_with :rspec do |c| c.syntax = :expect end end
- When
-
I run
rspec disable_should_syntax.rb syntaxes_spec.rb
- Then
-
the output should contain all of these:
8 examples, 4 failures undefined method `should'
- Disable expect syntax
-
- Given
-
a file named "disable_expect_syntax.rb" with:
RSpec.configure do |config| config.expect_with :rspec do |c| c.syntax = :should end end
- When
-
I run
rspec disable_expect_syntax.rb syntaxes_spec.rb
- Then
-
the output should contain all of these:
8 examples, 4 failures undefined method `expect'
- Explicitly enable both syntaxes
-
- Given
-
a file named "enable_both_syntaxes.rb" with:
RSpec.configure do |config| config.expect_with :rspec do |c| c.syntax = [:should, :expect] end end
- When
-
I run
rspec enable_both_syntaxes.rb syntaxes_spec.rb
- Then
- the examples should all pass
Last published over 7 years ago by .