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+import static org.junit.Assert.assertEquals;%0A%0Aimport org.junit.Test;%0Aimport org.junit.Ignore;%0Aimport org.junit.runner.RunWith;%0A//import org.junit.runners.junit4;%0A%0Apublic class TestClassTester %7B%0A    @Test%0A    public void test1() %7B%0A        assertEquals(3, TestClass.add(1.0, 2.0), 0);%0A    %7D%0A%7D%0A

Create TestClassTester.java