// Test keys from -n to n, stepping by 0.5.
function testNearZero(n) {
  let arr = [];
  for (let i = -n; i <= n; i += 0.5) {
    arr[i] = i;
  }

  for (let i = 0; i < 10; i++) {
    for (let j = -n; j <= n; j += 0.5) {
      arr[j] = arr[j] + 1;
    }
  }

  for (let i = -n * 2; i <= n * 2; i += 0.5) {
    let shouldContain = i >= -n && i <= n;
    assertEq(i in arr, shouldContain);
    if (shouldContain) {
      assertEq(arr[i], i + 10);
    }
  }
}

// Specialized
testNearZero(1);

// Megomorphic
testNearZero(5);


// Test keys from UINT32_MAX - n to UINT32_MAX + n, stepping by 0.5
function testNearUint32Max(n) {
  let UINT32_MAX = 0x7fff_ffff;
  let arr = [];
  for (let i = UINT32_MAX - n; i <= UINT32_MAX + n; i += 0.5) {
    arr[i] = i;
  }

  for (let i = 0; i < 10; i++) {
    for (let j = UINT32_MAX - n; j <= UINT32_MAX + n; j += 0.5) {
      arr[j] = arr[j] + 1;
    }
  }

  for (let i = UINT32_MAX - n * 2; i <= UINT32_MAX + n * 2; i += 0.5) {
    let shouldContain = i >= UINT32_MAX - n && i <= UINT32_MAX + n;
    assertEq(i in arr, shouldContain);
    if (shouldContain) {
      assertEq(arr[i], i + 10);
    }
  }
}

// Specialized
testNearUint32Max(1);

// Megamorphic
testNearUint32Max(5);