/** Test */
@Test
public void testNewValue1Prepend() {
AttributeModifier prepender = AttributeModifier.prepend("attr", null);
assertEquals("newvalue oldvalue", prepender.newValue("oldvalue", "newvalue"));
assertEquals("newvalue", prepender.newValue("", "newvalue"));
assertEquals("newvalue", prepender.newValue(null, "newvalue"));
assertEquals("oldvalue", prepender.newValue("oldvalue", ""));
assertEquals("oldvalue", prepender.newValue("oldvalue", null));
assertNull(prepender.newValue(null, null));
}
/** Test */
@Test
public void testNewValue2Prepend() {
AttributeModifier appender = AttributeModifier.prepend("attr", null).setSeparator(";");
assertEquals("newvalue;oldvalue", appender.newValue("oldvalue", "newvalue"));
assertEquals("newvalue", appender.newValue("", "newvalue"));
assertEquals("newvalue", appender.newValue(null, "newvalue"));
assertEquals("oldvalue", appender.newValue("oldvalue", ""));
assertEquals("oldvalue", appender.newValue("oldvalue", null));
assertNull(appender.newValue(null, null));
}
/** Test */
@Test
public void testNewValue1Append() {
AttributeModifier appender = AttributeModifier.append("attr", null);
assertEquals("oldvalue newvalue", appender.newValue("oldvalue", "newvalue"));
assertEquals("newvalue", appender.newValue("", "newvalue"));
assertEquals("newvalue", appender.newValue(null, "newvalue"));
assertEquals("oldvalue", appender.newValue("oldvalue", ""));
assertEquals("oldvalue", appender.newValue("oldvalue", null));
assertNull(appender.newValue(null, null));
}