idbcursor-direction-objectstore-keyrange.any.js

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This WPT test may be referenced by the following Test IDs:
- /IndexedDB/idbcursor-direction-objectstore-keyrange.any.html - WPT Dashboard Interop Dashboard
- /IndexedDB/idbcursor-direction-objectstore-keyrange.any.serviceworker.html - WPT Dashboard Interop Dashboard
- /IndexedDB/idbcursor-direction-objectstore-keyrange.any.sharedworker.html - WPT Dashboard Interop Dashboard
- /IndexedDB/idbcursor-direction-objectstore-keyrange.any.worker.html - WPT Dashboard Interop Dashboard

// META: global=window,worker

// META: title=IDBCursor direction - object store with keyrange

// META: script=resources/support.js

// Spec: https://w3c.github.io/IndexedDB/#cursor-iteration-operation

'use strict';

let records = [1337, 'Alice', 'Bob', 'Greg', 'Åke', ['Anne']];

let directions = ['next', 'prev', 'nextunique', 'prevunique'];

let cases = [

  {dir: 'next', expect: ['Alice', 'Bob', 'Greg']},

  {dir: 'prev', expect: ['Greg', 'Bob', 'Alice']},

  {dir: 'nextunique', expect: ['Alice', 'Bob', 'Greg']},

  {dir: 'prevunique', expect: ['Greg', 'Bob', 'Alice']},

];

cases.forEach(function(testcase) {

  let dir = testcase.dir;

  let expect = testcase.expect;

  indexeddb_test(

      function(t, db, tx) {

        let objStore = db.createObjectStore('test');

        for (let i = 0; i < records.length; i++)

          objStore.add(records[i], records[i]);

},

      function(t, db) {

        let count = 0;

        let rq = db.transaction('test', 'readonly')

                     .objectStore('test')

                     .openCursor(IDBKeyRange.bound('AA', 'ZZ'), dir);

        rq.onsuccess = t.step_func(function(e) {

          let cursor = e.target.result;

          if (!cursor) {

            assert_equals(count, expect.length, 'cursor runs');

            t.done();

          assert_equals(cursor.value, expect[count], 'cursor.value');

          count++;

          cursor.continue();

});

        rq.onerror = t.step_func(function(e) {

          e.preventDefault();

          e.stopPropagation();

          assert_unreached('rq.onerror - ' + e.message);

});

},

      'IDBCursor direction - object store with keyrange - ' + dir);

});