Merge "Avoid SetErrorHandler mutating FixtureFactory"

	// Create a Fixture.

	Fixture(t *testing.T, preparers ...FixturePreparer) Fixture

	// Set the error handler that will be used to check any errors reported by the test.

	// SetErrorHandler creates a new FixtureFactory that will use the supplied error handler to check

	// the errors (may be 0) reported by the test.

	//

	// The default handlers is FixtureExpectsNoErrors which will fail the go test immediately if any

	// errors are reported.

}

func (f *fixtureFactory) SetErrorHandler(errorHandler FixtureErrorHandler) FixtureFactory {

	f.errorHandler = errorHandler

	return f

	newFactory := &fixtureFactory{}

	*newFactory = *f

	newFactory.errorHandler = errorHandler

	return newFactory

}

func (f *fixtureFactory) RunTest(t *testing.T, preparers ...FixturePreparer) *TestResult {