def test_peek_limit(self):
self.begin_for_testing()
down(90)
forward(300)
self.assertEqual(None, peek())
up(180)
forward(700)
def test_peek(self):
self.begin_for_testing()
block_result = peek()
self.assertEqual(block_result, block.PISTON)
self.assertEqual(block.PISTON, block_result.definition)
self.assertTrue(block_result == block.PISTON)
self.assertFalse(block_result == block.OBSIDIAN)
self.assertTrue(block.PISTON == block_result.definition)
self.assertFalse(block.OBSIDIAN == block_result.definition)
self.assertFalse(block_result != block.PISTON)
self.assertTrue(block_result != block.OBSIDIAN)
self.assertFalse(block.PISTON != block_result.definition)
self.assertTrue(block.OBSIDIAN != block_result.definition)
self.assertEqual(
[block.PISTON.EXTENDED_FALSE, block.PISTON.FACING_WEST],
block_result.properties)