shouldReceive('getDriverName')->once()->andReturn('Gd'); $image = Mockery::mock('\Intervention\Image\Image'); $image->shouldReceive('getDriver')->once()->andReturn($driver); $image->shouldReceive('getCore')->once()->andReturn($resource); $command = new TextCommand(['test', 10, 20]); $result = $command->execute($image); $this->assertTrue($result); $this->assertFalse($command->hasOutput()); } public function testImagick() { # code... } }