@Test
public void testSofaTracerRuntimeException() {

    try {
        buildSofaTracerRuntimeExceptionNpe();
    } catch (SofaTracerRuntimeException e) {
        Assert.assertEquals("NullPointException occurs;", e.toString());
    }
    try {
        buildSofaTracerRuntimeException();
    } catch (SofaTracerRuntimeException e) {
        Assert.assertTrue(e.getMessage().contains("Unsupported extractor format:"));
    }
}