require "spec_helper" describe RSpec::ExpectIt::Helpers do describe "expect_it" do describe "equalivalence" do subject { Object.new } specify { expect_it.to eq subject } end describe "lazy evaluation" do before { @value = 0 } subject { @value = 1 } specify { expect_it.to eq (@value + 1) } end describe "unsaftey" do subject { raise Exception } specify { expect{ expect_it.to be nil }.to raise_error(Exception) } end end describe "expect_it!" do describe "equalivalence" do subject { Object.new } specify { expect_it!.to eq subject } end describe "unlazy evaluation" do before { @value = 0 } subject { @value = 1 } specify { expect_it!.to eq @value } end describe "unsaftey" do subject { raise Exception } specify { expect{expect_it!.to be nil}.to raise_error(Exception) } end end describe "expect_it{}" do describe "equalivalence" do before { @value = 0 } subject { @value += 1 } specify { expect_it{}.to be_a Proc } specify { expect_it{}.to change{@value}.by(1) } end describe "unsaftey" do subject { raise Exception } specify { expect{ expect_it{}.to_not change{0} }.to raise_error(Exception) } end end describe "expect_its" do describe "equalivalence" do let(:result) { Object.new } subject { double("subject").tap {|s| s.stub(:method) { result } } } specify { expect_its(:method).to eq subject.method } end describe "lazy evaluation" do before { @value = 0 } subject { double("subject").tap {|s| s.stub(:method) { @value = 1 } } } specify { expect_its(:method).to eq (@value + 1) } end describe "unsaftey" do subject { double("subject").tap {|s| s.stub(:method) { raise Exception } } } specify { expect{ expect_its(:method).to eq nil }.to raise_error(Exception) } end end describe "expect_its!" do describe "equalivalence" do let(:result) { Object.new } subject { double("subject").tap {|s| s.stub(:method) { result } } } specify { expect_its!(:method).to eq subject.method } end describe "unlazy evaluation" do before { @value = 0 } subject { double("subject").tap {|s| s.stub(:method) { @value = 1 } } } specify { expect_its!(:method).to eq @value } end describe "unsaftey" do subject { double("subject").tap {|s| s.stub(:method) { raise Exception } } } specify { expect{ expect_its!(:method).to eq nil }.to raise_error(Exception) } end end describe "expect_it_safe" do describe "equalivalence" do subject { Object.new } specify { expect_it_safe.to eq subject } end describe "lazy evaluation" do before { @value = 0 } subject { @value = 1 } specify { expect_it_safe.to eq (@value + 1) } end describe "saftey" do subject { raise Exception } specify { expect_it_safe.to eq nil } end end describe "expect_it_safe!" do describe "equalivalence" do subject { Object.new } specify { expect_it_safe!.to eq subject } end describe "unlazy evaluation" do before { @value = 0 } subject { @value = 1 } specify { expect_it_safe!.to eq @value } end describe "saftey" do subject { raise Exception } specify { expect_it_safe!.to eq nil } end end describe "expect_it_safe{}" do describe "equalivalence" do before { @value = 0 } subject { @value += 1 } specify { expect_it_safe{}.to be_a Proc } specify { expect_it_safe{}.to change{@value}.by(1) } end describe "saftey" do before { @value = 0 } subject { raise Exception } specify { expect{ expect_it_safe{}.to_not change{0} }.to_not raise_error(Exception) } end end end