void () { myFixture.addClass("package org.hamcrest; public class CoreMatchers { " + "public static <T> Matcher<T> notNullValue() {}\n" + "}"); myFixture.addClass("package org.hamcrest; public interface Matcher<T> {}"); myFixture.addClass("package org.junit; public class Assume { " + "public static <T> void assumeThat(T actual, org.hamcrest.Matcher<? super T> matcher) {}\n" + "}"); checkHighlighting(); }