shard-spectator/spec/spectator/mocks/value_stub_spec.cr

require "../../spec_helper"

Spectator.describe Spectator::ValueStub do
  subject(stub) { Spectator::ValueStub.new(:foo, 42) }

  it "stores the method name" do
    expect(stub.method).to eq(:foo)
  end

  it "stores the return value" do
    expect(stub.value).to eq(42)
  end

  describe "#===" do
    subject { stub === call }

    context "with a matching method name" do
      let(call) { Spectator::MethodCall.capture(:foo, "foobar") }

      it "returns true" do
        is_expected.to be_true
      end
    end

    context "with a different method name" do
      let(call) { Spectator::MethodCall.capture(:bar, "foobar") }

      it "returns false" do
        is_expected.to be_false
      end
    end

    context "with a constraint" do
      let(constraint) { Spectator::Arguments.capture(/foo/) }
      let(stub) { Spectator::ValueStub.new(:foo, 42, constraint) }

      context "with a matching method name" do
        let(call) { Spectator::MethodCall.capture(:foo, "foobar") }

        it "returns true" do
          is_expected.to be_true
        end

        context "with a non-matching arguments" do
          let(call) { Spectator::MethodCall.capture(:foo, "baz") }

          it "returns false" do
            is_expected.to be_false
          end
        end
      end

      context "with a different method name" do
        let(call) { Spectator::MethodCall.capture(:bar, "foobar") }

        it "returns false" do
          is_expected.to be_false
        end
      end
    end
  end
end