Method testRemove

src/test/java/com/amazon/ion/StructTest.java:780–820

()

    @Test
    public void testRemove()
    {
        IonStruct s = (IonStruct) oneValue("{a:1,b:2,b:3,c:4}");

        IonValue v = s.remove("c");
        checkInt(4, v);
        assertEquals(3, s.size());
        assertNull(s.get("c"));

        v = s.remove("q");
        assertNull(v);
        assertEquals(3, s.size());
        assertNull(s.get("q"));

        v = s.remove("a");
        checkInt(1, v);

        v = s.remove("b");
        assertTrue(v.getType() == IonType.INT);
        assertEquals(1, s.size());
        long leftoverB = ((IonInt)s.get("b")).longValue();
        assertTrue(leftoverB == 2 || leftoverB == 3);

        try {
            s.remove((String) null);
            fail("Expected NullPointerException");
        }
        catch (NullPointerException e) { }

        testMultithreadedAccess(s);

        s = system().newEmptyStruct();
        assertNull(s.remove("something"));
        assertTrue(s.isEmpty());
        assertFalse(s.isNullValue());

        s = system().newNullStruct();
        assertNull(s.remove("something"));
        assertTrue(s.isNullValue());
    }

    public void testRemoveClearsFieldName(IonStruct s)
    {