@Test
    public void JGiven_can_be_used_just_by_using_JUnit_rules() {
        stage.given().something();

        assertThat(scenarioRule.getScenario().getScenarioModel().getCase(0).getFirstStep().getLastWord().getValue()).isEqualTo("something");
    }
Verifies that JGiven can be used without inheriting from any class,
just by using the two JGiven rules
jgiven-junit/src/test/java/com/tngtech/jgiven/junit/OnlyRulesTest.java