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module RSpec
module Mocks
RSpec.describe "ordering" do
before { @double = double("test double") }
after { reset @double }
it "passes when messages are received in order" do
expect(@double).to receive(:one).ordered
expect(@double).to receive(:two).ordered
expect(@double).to receive(:three).ordered
@double.one
@double.two
@double.three
end
it "passes when messages are received in order" do
allow(@double).to receive(:something)
expect(@double).to receive(:one).ordered
expect(@double).to receive(:two).ordered
expect(@double).to receive(:three).at_least(:once).ordered
@double.one
@double.two
@double.three
@double.three
end
it "passes when messages are received in order across objects" do
a = double("a")
b = double("b")
expect(a).to receive(:one).ordered
expect(b).to receive(:two).ordered
expect(a).to receive(:three).ordered
a.one
b.two
a.three
end
it "fails when messages are received out of order (2nd message 1st)" do
expect(@double).to receive(:one).ordered
expect(@double).to receive(:two).ordered
expect {
@double.two
}.to fail_with "#<Double \"test double\"> received :two out of order"
end
it "fails when messages are received out of order (3rd message 1st)" do
expect(@double).to receive(:one).ordered
expect(@double).to receive(:two).ordered
expect(@double).to receive(:three).ordered
@double.one
expect {
@double.three
}.to fail_with "#<Double \"test double\"> received :three out of order"
end
it "fails when messages are received out of order (3rd message 2nd)" do
expect(@double).to receive(:one).ordered
expect(@double).to receive(:two).ordered
expect(@double).to receive(:three).ordered
@double.one
expect {
@double.three
}.to fail_with "#<Double \"test double\"> received :three out of order"
end
it "fails when messages are out of order across objects" do
a = double("test double")
b = double("another test double")
expect(a).to receive(:one).ordered
expect(b).to receive(:two).ordered
expect(a).to receive(:three).ordered
a.one
expect {
a.three
}.to fail_with "#<Double \"test double\"> received :three out of order"
reset a
reset b
end
it "ignores order of non ordered messages" do
expect(@double).to receive(:ignored_0)
expect(@double).to receive(:ordered_1).ordered
expect(@double).to receive(:ignored_1)
expect(@double).to receive(:ordered_2).ordered
expect(@double).to receive(:ignored_2)
expect(@double).to receive(:ignored_3)
expect(@double).to receive(:ordered_3).ordered
expect(@double).to receive(:ignored_4)
@double.ignored_3
@double.ordered_1
@double.ignored_0
@double.ordered_2
@double.ignored_4
@double.ignored_2
@double.ordered_3
@double.ignored_1
verify @double
end
it "supports duplicate messages" do
expect(@double).to receive(:a).ordered
expect(@double).to receive(:b).ordered
expect(@double).to receive(:a).ordered
@double.a
@double.b
@double.a
end
end
end
end
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