describe('toHaveSpyInteractions', function () {

  it('detects spy interactions', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    let spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['spyA', 'spyB']);

    spyObj.spyA();

    let result = matcher.compare(spyObj);
    expect(result.pass).toBe(true);
    expect(result.message).toContain(
      'Expected spy object spies to have been called'
    );
  });

  it('detects multiple spy interactions', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    let spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['spyA', 'spyB']);

    spyObj.spyA();
    spyObj.spyB();
    spyObj.spyA();

    let result = matcher.compare(spyObj);
    expect(result.pass).toBe(true);
    expect(result.message).toContain(
      'Expected spy object spies to have been called'
    );
  });

  it('detects no spy interactions', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    let spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['spyA', 'spyB']);

    let result = matcher.compare(spyObj);
    expect(result.pass).toBe(false);
    expect(result.message).toContain(
      'Expected spy object spies to have been called'
    );
  });

  it('ignores non-observed spy object interactions', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    let spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['spyA', 'spyB']);
    spyObj.otherMethod = function () { };

    spyObj.otherMethod();

    let result = matcher.compare(spyObj);
    expect(result.pass).toBe(false);
    expect(result.message).toContain(
      'Expected spy object spies to have been called'
    );
  });

  [true, 123, 'string'].forEach(function (testValue) {
    it(`throws error if a non-object (${testValue}) is passed`, function () {
      let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();

      expect(function () {
        matcher.compare(testValue);
      }).toThrowError(Error, /Expected a spy object, but got/);
    });
  });

  it('throws error if arguments are passed', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    let spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['spyA', 'spyB']);

    expect(function () {
      matcher.compare(spyObj, 'an argument');
    }).toThrowError(Error, /Does not take arguments/);
  });

  it('throws error if spy object has no spies', function () {
    let matcher = jasmineUnderTest.matchers.toHaveSpyInteractions();
    const spyObj = jasmineUnderTest.getEnv().createSpyObj('NewClass', ['notSpy']);
    // Removing spy since spy objects cannot be created without spies.
    spyObj.notSpy = function () { };

    expect(function () {
      matcher.compare(spyObj);
    }).toThrowError(
      Error,
      /Expected a spy object with spies, but object has no spies/
    );
  });
});