public String getParentArtifactId() {
        return parentArtifactId;
    }
@Test
    public void testGetParentArtifactId() {
        Model instance = new Model();
        instance.setParentArtifactId("");
        String expResult = "";
        String result = instance.getParentArtifactId();
        assertEquals(expResult, result);
    }