/usr/share/doc/ruby-rspec-mocks/features/basics/expecting_messages.feature is in ruby-rspec-mocks 3.5.0c3e0m0s0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | Feature: Expecting messages
Use `expect(...).to receive(...)` to expect a message on a [test double](./test-doubles). Unfulfilled
message expectations trigger failures when the example completes. You can also use
`expect(...).not_to receive(...)` to set a negative message expectation.
Scenario: Failing positive message expectation
Given a file named "unfulfilled_message_expectation_spec.rb" with:
"""ruby
RSpec.describe "An unfulfilled positive message expectation" do
it "triggers a failure" do
dbl = double("Some Collaborator")
expect(dbl).to receive(:foo)
end
end
"""
When I run `rspec unfulfilled_message_expectation_spec.rb`
Then it should fail with:
"""
1) An unfulfilled positive message expectation triggers a failure
Failure/Error: expect(dbl).to receive(:foo)
(Double "Some Collaborator").foo(*(any args))
expected: 1 time with any arguments
received: 0 times with any arguments
"""
Scenario: Passing positive message expectation
Given a file named "fulfilled_message_expectation_spec.rb" with:
"""ruby
RSpec.describe "A fulfilled positive message expectation" do
it "passes" do
dbl = double("Some Collaborator")
expect(dbl).to receive(:foo)
dbl.foo
end
end
"""
When I run `rspec fulfilled_message_expectation_spec.rb`
Then the examples should all pass
Scenario: Failing negative message expectation
Given a file named "negative_message_expectation_spec.rb" with:
"""ruby
RSpec.describe "A negative message expectation" do
it "fails when the message is received" do
dbl = double("Some Collaborator").as_null_object
expect(dbl).not_to receive(:foo)
dbl.foo
end
end
"""
When I run `rspec negative_message_expectation_spec.rb`
Then it should fail with:
"""
1) A negative message expectation fails when the message is received
Failure/Error: dbl.foo
(Double "Some Collaborator").foo(no args)
expected: 0 times with any arguments
received: 1 time
"""
Scenario: Passing negative message expectation
Given a file named "negative_message_expectation_spec.rb" with:
"""ruby
RSpec.describe "A negative message expectation" do
it "passes if the message is never received" do
dbl = double("Some Collaborator").as_null_object
expect(dbl).not_to receive(:foo)
end
end
"""
When I run `rspec negative_message_expectation_spec.rb`
Then the examples should all pass
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