@Test
void testToString() {

	String result = a.toString();
	assertEquals("a", result);
	assertEquals(1, result.length());
	assertEquals("abcdefg", new Charray("abcdefg").toString());
	assertEquals("abcd", new Charray('a', 'b', 'c', 'd').toString());
	assertEquals("", new Charray().toString());
	assertEquals("", new Charray(new char[10], 0, 0).toString());
}