idb_binary_key_conversion.htm | Explore in Territory

<!DOCTYPE html>
<meta charset=utf-8>
<title>Verify the coversion of various types of BufferSource</title>
<link rel="author" title="Mozilla" href="https://www.mozilla.org">
<link rel="help" href="http://w3c.github.io/IndexedDB/#key-construct">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>

<script>
  test(function() {
    let binary = new ArrayBuffer(0);
    let key = IDBKeyRange.lowerBound(binary).lower;

    assert_true(key instanceof ArrayBuffer);
    assert_equals(key.byteLength, 0);
    assert_equals(key.byteLength, binary.byteLength);
  }, "Empty ArrayBuffer");

  test(function() {
    let binary = new ArrayBuffer(4);
    let dataView = new DataView(binary);
    dataView.setUint32(0, 1234567890);

    let key = IDBKeyRange.lowerBound(binary).lower;

    assert_true(key instanceof ArrayBuffer);
    assert_equals(key.byteLength, 4);
    assert_equals(dataView.getUint32(0), new DataView(key).getUint32(0));
  }, "ArrayBuffer");

  test(function() {
    let binary = new ArrayBuffer(4);
    let dataView = new DataView(binary);
    dataView.setUint32(0, 1234567890);

    let key = IDBKeyRange.lowerBound(dataView).lower;

    assert_true(key instanceof ArrayBuffer);
    assert_equals(key.byteLength, 4);
    assert_equals(dataView.getUint32(0), new DataView(key).getUint32(0));
  }, "DataView");

  test(function() {
    let binary = new ArrayBuffer(4);
    let dataView = new DataView(binary);
    let int8Array = new Int8Array(binary);
    int8Array.set([16, -32, 64, -128]);

    let key = IDBKeyRange.lowerBound(int8Array).lower;
    let keyInInt8Array = new Int8Array(key);

    assert_true(key instanceof ArrayBuffer);
    assert_equals(key.byteLength, 4);
    for(let i = 0; i < int8Array.length; i++) {
      assert_equals(keyInInt8Array[i], int8Array[i]);
    }
  }, "TypedArray(Int8Array)");

  test(function() {
    let binary = new ArrayBuffer(4);
    let dataView = new DataView(binary);
    let int8Array = new Int8Array(binary);
    int8Array.set([16, -32, 64, -128]);

    let key = IDBKeyRange.lowerBound([int8Array]).lower;

    assert_true(key instanceof Array);
    assert_true(key[0] instanceof ArrayBuffer);
    assert_equals(key[0].byteLength, 4);

    let keyInInt8Array = new Int8Array(key[0]);

    for(let i = 0; i < int8Array.length; i++) {
      assert_equals(keyInInt8Array[i], int8Array[i]);
    }
  }, "Array of TypedArray(Int8Array)");
</script>

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chromium/third_party/blink/web_tests/external/wpt/IndexedDB/idb_binary_key_conversion.htm
