TextView tv = new TextView(mContext);
char[] c = new char[] { 'H", 'e", 'l", 'l", 'o", ' ",
'W", 'o", 'r", 'l", 'd", '!" };
tv.setText(c, 1, 4);
CharSequence oldText = tv.getText();
tv.setText(c, 4, 5);
CharSequence newText = tv.getText();
assertTrue(newText == oldText);
assertEquals(5, newText.length());
assertEquals('o", newText.charAt(0));
assertEquals("o Wor", newText.toString());
assertEquals(" Wo", newText.subSequence(1, 4));
char[] c2 = new char[7];
((GetChars) newText).getChars(1, 4, c2, 2);
assertEquals('\0", c2[1]);
assertEquals(' ", c2[2]);
assertEquals('W", c2[3]);
assertEquals('o", c2[4]);
assertEquals('\0", c2[5]);
