svoid test_gazelle22_squareness(Rect r) {
  testFunctionValues(x -> gazelle22_squareness((double) x),
    rect(0, 0, 10, 20), 0.5,
    rect(0, 0, 10, 10), 1.0,
    rect(0, 0, 20, 10), 0.5,
    rect(0, 0, 20, 15), 0.25);
}