function testSetMirror() { $maze = new Maze(2, 2); $maze->setMirror(1, 1, '/'); $this->assertTrue($maze->hasForwardMirror(1, 1)); $this->assertFalse($maze->hasBackwardMirror(1, 1)); $maze->setMirror(1, 2, '\\'); $this->assertFalse($maze->hasForwardMirror(1, 2)); $this->assertTrue($maze->hasBackwardMirror(1, 2)); }