ladybird/Libraries/LibJS/Tests/operators/assignment-operators.js

load("test-common.js");

try {
  var x;

  x = 1;
  assert((x = 2) === 2);
  assert(x === 2);

  x = 1;
  assert((x += 2) === 3);
  assert(x === 3);

  x = 3;
  assert((x -= 2) === 1);
  assert(x === 1);

  x = 3;
  assert((x *= 2) === 6);
  assert(x === 6);

  x = 6;
  assert((x /= 2) === 3);
  assert(x === 3);

  x = 6;
  assert((x %= 4) === 2);
  assert(x === 2);

  x = 2;
  assert((x **= 3) === 8);
  assert(x === 8);

  x = 3;
  assert((x &= 2) === 2);
  assert(x === 2);

  x = 3;
  assert((x |= 4) === 7);
  assert(x === 7);

  x = 6;
  assert((x ^= 2) === 4);
  assert(x === 4);

  x = 2;
  assert((x <<= 2) === 8);
  assert(x === 8);

  x = 8;
  assert((x >>= 2) === 2);
  assert(x === 2);

  x = -(2 ** 32 - 10);
  assert((x >>>= 2) === 2);
  assert(x === 2);

  console.log("PASS");
} catch (e) {
  console.log("FAIL: " + e);
}