cos.write(new byte[] { 1 });
        assertTrue(cos.isInMemory());
        assertFalse(cos.done);
        cos.close();
    }

    @Test
    public void testThresholdOneExceeded() throws IOException {
        // With threshold 1, writing 2 bytes should go to file
        ContentOutputStream cos = new ContentOutputStream(1, Curl.tmpDir);
        cos.write(new byte[] { 1, 2 });