@Test
    public void testGetSubtype() {
        assertEquals("plain", MediaType.parse("text/plain").subtype());
        assertEquals("atom+xml", MediaType.parse("application/atom+xml; charset=utf-8").subtype());
    }
Tests for {@link MediaType}.

@author Gregory Kick
core/src/test/java/com/linecorp/armeria/common/MediaTypeTest.java