IndexedDB/idbcursor-continuePrimaryKey-exception-order.htm

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<title>IDBCursor.continuePrimaryKey() - Exception Orders </title>
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<script>
function setup_test_store(db) {
  var records = [ { iKey: "A", pKey: 1 },
                  { iKey: "A", pKey: 2 },
                  { iKey: "A", pKey: 3 },
                  { iKey: "A", pKey: 4 },
                  { iKey: "B", pKey: 5 },
                  { iKey: "B", pKey: 6 },
                  { iKey: "B", pKey: 7 },
                  { iKey: "C", pKey: 8 },
                  { iKey: "C", pKey: 9 },
                  { iKey: "D", pKey: 10 } ];

    var store = db.createObjectStore("test", { keyPath: "pKey" });
    var index = store.createIndex("idx", "iKey");

    for(var i = 0; i < records.length; i++) {
        store.add(records[i]);
    }

    return store;
}

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            store.deleteIndex("idx");
        });
        txn.oncomplete = t.step_func(function() {
            assert_throws("TransactionInactiveError", function() {
                cursor.continuePrimaryKey("A", 4);
            }, "transaction-state check should precede deletion check");
            t.done();
        });
    },
    null,
    "TransactionInactiveError v.s. InvalidStateError(deleted index)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var cursor_rq = store.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            db.deleteObjectStore("test");

            assert_throws("InvalidStateError", function() {
                cursor.continuePrimaryKey("A", 4);
            }, "deletion check should precede index source check");
            t.done();
        });
    },
    null,
    "InvalidStateError(deleted source) v.s. InvalidAccessError(incorrect source)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor(null, "nextunique");
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            store.deleteIndex("idx");

            assert_throws("InvalidStateError", function() {
              cursor.continuePrimaryKey("A", 4);
            }, "deletion check should precede cursor direction check");
            t.done();
        });
    },
    null,
    "InvalidStateError(deleted source) v.s. InvalidAccessError(incorrect direction)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = db.createObjectStore("test", {keyPath:"pKey"});
        var index = store.createIndex("idx", "iKey");

        store.add({ iKey: "A", pKey: 1 });

        var cursor_rq = index.openCursor(null, "nextunique");
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (e.target.result) {
                cursor = e.target.result;
                cursor.continue();
                return;
            }

            assert_throws("InvalidAccessError", function() {
                cursor.continuePrimaryKey("A", 4);
            }, "direction check should precede got_value_flag check");
            t.done();
        });
    },
    null,
    "InvalidAccessError(incorrect direction) v.s. InvalidStateError(iteration complete)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = db.createObjectStore("test", {keyPath:"pKey"});
        var index = store.createIndex("idx", "iKey");

        store.add({ iKey: "A", pKey: 1 });

        var cursor_rq = index.openCursor(null, "nextunique");
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (!cursor) {
                cursor = e.target.result;
                assert_true(!!cursor, "acquire cursor");

                cursor.continue();

                assert_throws("InvalidAccessError", function() {
                    cursor.continuePrimaryKey("A", 4);
                }, "direction check should precede iteration ongoing check");
                t.done();
            }
        });
    },
    null,
    "InvalidAccessError(incorrect direction) v.s. InvalidStateError(iteration ongoing)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var cursor_rq = store.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (!cursor) {
                cursor = e.target.result;
                assert_true(!!cursor, "acquire cursor");

                cursor.continue();

                assert_throws("InvalidAccessError", function() {
                    cursor.continuePrimaryKey("A", 4);
                }, "index source check should precede iteration ongoing check");
                t.done();
            }
        });
    },
    null,
    "InvalidAccessError(incorrect source) v.s. InvalidStateError(iteration ongoing)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = db.createObjectStore("test", {keyPath:"pKey"});

        store.add({ iKey: "A", pKey: 1 });

        var cursor_rq = store.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (e.target.result) {
                cursor = e.target.result;
                cursor.continue();
                return;
            }

            assert_throws("InvalidAccessError", function() {
                cursor.continuePrimaryKey("A", 4);
            }, "index source check should precede got_value_flag check");
            t.done();
        });
    },
    null,
    "InvalidAccessError(incorrect source) v.s. InvalidStateError(iteration complete)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (!cursor) {
                cursor = e.target.result;
                assert_true(!!cursor, "acquire cursor");

                cursor.continue();

                assert_throws("InvalidStateError", function() {
                    cursor.continuePrimaryKey(null, 4);
                }, "iteration ongoing check should precede unset key check");
                t.done();
            }
        });
    },
    null,
    "InvalidStateError(iteration ongoing) v.s. DataError(unset key)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = db.createObjectStore("test", {keyPath:"pKey"});
        var index = store.createIndex("idx", "iKey");

        store.add({ iKey: "A", pKey: 1 });

        var cursor_rq = index.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            if (e.target.result) {
                cursor = e.target.result;
                cursor.continue();
                return;
            }

            assert_throws("InvalidStateError", function() {
                cursor.continuePrimaryKey(null, 4);
            }, "got_value_flag check should precede unset key check");
            t.done();
        });
    },
    null,
    "InvalidStateError(iteration complete) v.s. DataError(unset key)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey(null, 4);
            }, "DataError is expected if key is unset.");
            t.done();
        });
    },
    null,
    "DataError(unset key)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor();
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("A", null);
            }, "DataError is expected if primary key is unset.");
            t.done();
        });
    },
    null,
    "DataError(unset primary key)"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor(IDBKeyRange.lowerBound("B"));
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            assert_equals(cursor.key, "B", "expected key");
            assert_equals(cursor.primaryKey, 5, "expected primary key");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("A", 6);
            }, "DataError is expected if key is lower then current one.");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("B", 5);
            }, "DataError is expected if primary key is equal to current one.");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("B", 4);
            }, "DataError is expected if primary key is lower than current one.");

            t.done();
        });
    },
    null,
    "DataError(keys are lower then current one) in 'next' direction"
);

indexeddb_test(
    function(t, db, txn) {
        var store = setup_test_store(db);
        var index = store.index("idx");
        var cursor_rq = index.openCursor(IDBKeyRange.upperBound("B"), "prev");
        var cursor;

        cursor_rq.onerror = t.unreached_func('openCursor should succeed');
        cursor_rq.onsuccess = t.step_func(function(e) {
            cursor = e.target.result;
            assert_true(!!cursor, "acquire cursor");

            assert_equals(cursor.key, "B", "expected key");
            assert_equals(cursor.primaryKey, 7, "expected primary key");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("C", 6);
            }, "DataError is expected if key is larger then current one.");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("B", 7);
            }, "DataError is expected if primary key is equal to current one.");

            assert_throws("DataError", function() {
                cursor.continuePrimaryKey("B", 8);
            }, "DataError is expected if primary key is larger than current one.");

            t.done();
        });
    },
    null,
    "DataError(keys are larger then current one) in 'prev' direction"
);
</script>