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module RSpec
module Mocks
RSpec.describe MessageExpectation, "has a nice string representation" do
let(:test_double) { double }
example "for a raw message expectation on a test double" do
expect(allow(test_double).to receive(:foo)).to have_string_representation(
"#<RSpec::Mocks::MessageExpectation #<Double (anonymous)>.foo(any arguments)>"
)
end
example "for a raw message expectation on a partial double" do
expect(allow("partial double".dup).to receive(:foo)).to have_string_representation(
'#<RSpec::Mocks::MessageExpectation "partial double".foo(any arguments)>'
)
end
example "for a message expectation constrained by `with`" do
expect(allow(test_double).to receive(:foo).with(1, a_kind_of(String), any_args)).to have_string_representation(
"#<RSpec::Mocks::MessageExpectation #<Double (anonymous)>.foo(1, a kind of String, *(any args))>"
)
end
RSpec::Matchers.define :have_string_representation do |expected_representation|
match do |object|
values_match?(expected_representation, object.to_s) && object.to_s == object.inspect
end
failure_message do |object|
"expected string representation: #{expected_representation}\n" \
" but got string representation: #{object.to_s}"
end
end
end
end
end
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