private void assertThatParametrisedStepHasMarkedParsedParametersValues(String firstParameterValue,
String secondParameterValue) throws IntrospectionException {
// Given
SomeSteps stepsInstance = new SomeSteps();
StepMatcher stepMatcher = new RegexStepMatcher(StepType.WHEN, "I use parameters $theme and $variant", Pattern.compile("When I use parameters (.*) and (.*)"), new String[]{"theme", "variant"});
StepCreator stepCreator = stepCreatorUsing(stepsInstance, stepMatcher, new ParameterControls());
Map<String, String> parameters = new HashMap<String, String>();
// When
StepResult stepResult = stepCreator.createParametrisedStep(SomeSteps.methodFor("aMethodWithANamedParameter"),