IndexedDB/string-list-ordering.any.js

// META: title=IndexedDB string list ordering
// META: global=window,worker
// META: script=resources/support.js

// Spec: https://w3c.github.io/IndexedDB/#dom-idbdatabase-objectstorenames

'use strict';

async_test(t => {
  let expectedOrder = [
    '', '\x00',                            // 'NULL' (U+0000)
    '0', '1', 'A', 'B', 'a', 'b', '\x7F',  // 'DELETE' (U+007F)
    '\xC0',          // 'LATIN CAPITAL LETTER A WITH GRAVE' (U+00C0)
    '\xC1',          // 'LATIN CAPITAL LETTER A WITH ACUTE' (U+00C1)
    '\xE0',          // 'LATIN SMALL LETTER A WITH GRAVE' (U+00E0)
    '\xE1',          // 'LATIN SMALL LETTER A WITH ACUTE' (U+00E1)
    '\xFF',          // 'LATIN SMALL LETTER Y WITH DIAERESIS' (U+00FF)
    '\u0100',        // 'LATIN CAPITAL LETTER A WITH MACRON' (U+0100)
    '\u1000',        // 'MYANMAR LETTER KA' (U+1000)
    '\uD834\uDD1E',  // 'MUSICAL SYMBOL G-CLEF' (U+1D11E), UTF-16 surrogate
                     // pairs
    '\uFFFD'         // 'REPLACEMENT CHARACTER' (U+FFFD)
  ];

  let i;
  let tmp;
  const permutedOrder = expectedOrder.slice();
  permutedOrder.reverse();
  for (i = 0; i < permutedOrder.length - 2; i += 2) {
    tmp = permutedOrder[i];
    permutedOrder[i] = permutedOrder[i + 1];
    permutedOrder[i + 1] = tmp;
  }

  let objStore;
  let db;

  // Check that the expected order is the canonical JS sort order.
  const sortedOrder = expectedOrder.slice();
  sortedOrder.sort();
  assert_array_equals(sortedOrder, expectedOrder);

  const request = createdb(t);

  request.onupgradeneeded = t.step_func((e) => {
    db = e.target.result;

    // Object stores.
    for (let i = 0; i < permutedOrder.length; i++) {
      objStore = db.createObjectStore(permutedOrder[i]);
    }
    assert_array_equals(db.objectStoreNames, expectedOrder);

    // Indexes.
    for (let i = 0; i < permutedOrder.length; i++) {
      objStore.createIndex(permutedOrder[i], 'keyPath');
    }
    assert_array_equals(objStore.indexNames, expectedOrder);
  });

  request.onsuccess = t.step_func((e) => {
    // Object stores.
    assert_array_equals(db.objectStoreNames, expectedOrder);
    // Indexes.
    assert_array_equals(objStore.indexNames, expectedOrder);
    t.done();
  });
}, 'Test string list ordering in IndexedDB');