@Test
public void testInvalidCommand() {
// Boundary case: wrong command
Command command = parser.build("delete 1-5");
Assert.assertTrue(command instanceof InvalidCommand);
command = parser.build("add hello");
Assert.assertTrue(command instanceof InvalidCommand);
command = parser.build("add hello 3words");
Assert.assertTrue(command instanceof InvalidCommand);
// Boundary case: insufficient arguments
command = parser.build("rename");
Assert.assertTrue(command instanceof InvalidCommand);
command = parser.build("rename oneword");
Assert.assertTrue(command instanceof InvalidCommand);
command = parser.build("rename 1");
Assert.assertTrue(command instanceof InvalidCommand);
// Boundary case: empty string
command = parser.build("");
Assert.assertTrue(command instanceof InvalidCommand);
// Boundary case: null
command = parser.build(null);
Assert.assertTrue(command instanceof InvalidCommand);
}
@Test
public void testValidCommand() {
Command command = parser.build("rename 1 happy");
Assert.assertTrue(command instanceof RenameTaskCommand);
RenameTaskCommand renameCommand = (RenameTaskCommand) command;
assertSameFields(renameCommand, 1, "happy");
command = parser.build("rename 123 12345");
Assert.assertTrue(command instanceof RenameTaskCommand);
renameCommand = (RenameTaskCommand) command;
assertSameFields(renameCommand, 123, "12345");
command = parser.build("rename 100232132 2 or more words");
Assert.assertTrue(command instanceof RenameTaskCommand);
renameCommand = (RenameTaskCommand) command;
assertSameFields(renameCommand, 100232132, "2 or more words");
}