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Contents
Feature: Compound Expectations
Matchers can be composed using `and` or `or` to make compound expectations.
Scenario: Use `and` to chain expectations
Given a file named "compound_and_matcher_spec.rb" with:
"""ruby
RSpec.describe "A compound `and` matcher" do
let(:string) { "foo bar bazz" }
it "passes when both are true" do
expect(string).to start_with("foo").and end_with("bazz")
end
it "passes when using boolean AND `&` alias" do
expect(string).to start_with("foo") & end_with("bazz")
end
it "fails when the first matcher fails" do
expect(string).to start_with("bar").and end_with("bazz")
end
it "fails when the second matcher fails" do
expect(string).to start_with("foo").and end_with("bar")
end
end
"""
When I run `rspec compound_and_matcher_spec.rb`
Then the output should contain "4 examples, 2 failures"
Scenario: Use `or` to chain expectations
Given a file named "stoplight_spec.rb" with:
"""ruby
class StopLight
def color
%w[ green yellow red ].shuffle.first
end
end
RSpec.describe StopLight, "#color" do
let(:light) { StopLight.new }
it "is green, yellow or red" do
expect(light.color).to eq("green").or eq("yellow").or eq("red")
end
it "passes when using boolean OR `|` alias" do
expect(light.color).to eq("green") | eq("yellow") | eq("red")
end
end
"""
When I run `rspec stoplight_spec.rb`
Then the example should pass
Version data entries
12 entries across 12 versions & 1 rubygems