@Test
public void should_ignore_command_when_given_y_coordinate_beyond_board_height() {
new PlaceCommand(3, 5, Direction.WEST).execute(robot);
assertThat(robot.getX(), equalTo(3));
assertThat(robot.getY(), equalTo(3));
assertThat(robot.getFacingDirection(), equalTo(Direction.NORTH));
}
@Test
public void test_moving_around_board() throws IOException {
when(commander.getNextCommand())
.thenReturn("PLACE 0,0,NORTH")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("RIGHT")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("RIGHT")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("RIGHT")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(0));
assertThat(robot.getY(), equalTo(0));
assertThat(robot.getFacingDirection(), equalTo(Direction.WEST));
}
@Test
public void should_ignore_command_when_given_negative_y_coordinate() {
new PlaceCommand(3, -1, Direction.WEST).execute(robot);
assertThat(robot.getX(), equalTo(3));
assertThat(robot.getY(), equalTo(3));
assertThat(robot.getFacingDirection(), equalTo(Direction.NORTH));
}
@Test
public void test_straight_one_movement() throws IOException {
when(commander.getNextCommand())
.thenReturn("PLACE 0,0,NORTH")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(0));
assertThat(robot.getY(), equalTo(1));
assertThat(robot.getFacingDirection(), equalTo(Direction.NORTH));
}
@Test
public void should_be_able_to_handle_empty_initial_lines() throws IOException {
when(commander.getNextCommand())
.thenReturn("")
.thenReturn(" ")
.thenReturn("\t")
.thenReturn("PLACE 0,0,NORTH")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(0));
assertThat(robot.getY(), equalTo(1));
assertThat(robot.getFacingDirection(), equalTo(Direction.NORTH));
}
@Test
public void should_ignore_commands_until_first_place_command() throws IOException {
when(commander.getNextCommand())
.thenReturn("")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("LEFT")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(0));
assertThat(robot.getY(), equalTo(0));
assertThat(robot.getFacingDirection(), nullValue());
assertFalse(robot.isOnBoard());
}
@Test
public void robot_should_not_fall_off_the_table() throws IOException {
when(commander.getNextCommand())
.thenReturn("PLACE 0,0,NORTH")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(0));
assertThat(robot.getY(), equalTo(4));
assertThat(robot.getFacingDirection(), equalTo(Direction.NORTH));
}
@Test
public void test_multiple_place_command() throws IOException {
when(commander.getNextCommand())
.thenReturn("PLACE 0,0,NORTH")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("PLACE 3,3,SOUTH")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("MOVE")
.thenReturn("LEFT")
.thenReturn("MOVE")
.thenReturn(null);
robotSimulator.run();
assertThat(robot.getX(), equalTo(4));
assertThat(robot.getY(), equalTo(0));
assertThat(robot.getFacingDirection(), equalTo(Direction.EAST));
}
@Test
public void given_valid_coordinate__THEN__should_set_robot_to_the_correct_facing_direction() {
new PlaceCommand(1, 1, Direction.WEST).execute(robot);
assertThat(robot.getFacingDirection(), equalTo(Direction.WEST));
}