Operator script (click here to toggle)

The test is passed if:

• the first row show four smiley faces of the same size, each framed by a blue rectangle
• the first image on the left on the second row shows half a smiley face (horizontally offset)
• the second image on the left on the second row shows half a smiley face (vertically offset)
• the third image on the left on the second row shows the upper-lefthand quarter of the smiley face enlarged to fit the blue rectangle
• the rightmost image on the second row shows the upper-lefthand quarter of the smiley face (horizontally and vertically offset)