'use strict';
// Should be large enough to trigger large value handling in the IndexedDB
// engines that have special code paths for large values.
const wrapThreshold = 128 * 1024;
// Returns an IndexedDB value created from a descriptor.
//
// See the bottom of the file for descriptor samples.
function createValue(descriptor) {
if (typeof(descriptor) != 'object')
return descriptor;
if (Array.isArray(descriptor))
return descriptor.map((element) => createValue(element));
if (!descriptor.hasOwnProperty('type')) {
const value = {};
for (let property of Object.getOwnPropertyNames(descriptor))
value[property] = createValue(descriptor[property]);
return value;
}
switch (descriptor.type) {
case 'blob':
return new Blob(
[largeValue(descriptor.size, descriptor.seed)],
{ type: descriptor.mimeType });
case 'buffer':
return largeValue(descriptor.size, descriptor.seed);
}
}
// Checks an IndexedDB value against a descriptor.
//
// Returns a Promise that resolves if the value passes the check.
//
// See the bottom of the file for descriptor samples.
function checkValue(testCase, value, descriptor) {
if (typeof(descriptor) != 'object') {
assert_equals(
descriptor, value,
'IndexedDB result should match put() argument');
return Promise.resolve();
}
if (Array.isArray(descriptor)) {
assert_true(
Array.isArray(value),
'IndexedDB result type should match put() argument');
assert_equals(
descriptor.length, value.length,
'IndexedDB result array size should match put() argument');
const subChecks = [];
for (let i = 0; i < descriptor.length; ++i)
subChecks.push(checkValue(testCase, value[i], descriptor[i]));
return Promise.all(subChecks);
}
if (!descriptor.hasOwnProperty('type')) {
assert_array_equals(
Object.getOwnPropertyNames(value).sort(),
Object.getOwnPropertyNames(descriptor).sort(),
'IndexedDB result object properties should match put() argument');
const subChecks = [];
return Promise.all(Object.getOwnPropertyNames(descriptor).map(property =>
checkValue(testCase, value[property], descriptor[property])));
}
switch (descriptor.type) {
case 'blob':
assert_class_string(
value, 'Blob',
'IndexedDB result class should match put() argument');
assert_equals(
descriptor.mimeType, value.type,
'IndexedDB result Blob MIME type should match put() argument');
assert_equals(descriptor.size, value.size, 'incorrect Blob size');
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onloadend = testCase.step_func(() => {
if (reader.error) {
reject(reader.error);
return;
}
const view = new Uint8Array(reader.result);
assert_equals(
view.join(','),
largeValue(descriptor.size, descriptor.seed).join(','),
'IndexedDB result Blob content should match put() argument');
resolve();
});
reader.readAsArrayBuffer(value);
});
case 'buffer':
assert_class_string(
value, 'Uint8Array',
'IndexedDB result type should match put() argument');
assert_equals(
value.join(','),
largeValue(descriptor.size, descriptor.seed).join(','),
'IndexedDB result typed array content should match put() argument');
return Promise.resolve();
}
}
function cloningTestInternal(label, valueDescriptors, options) {
promise_test(testCase => {
return createDatabase(testCase, (database, transaction) => {
testCase.add_cleanup(() => database.close());
let store;
if (options.useKeyGenerator) {
store = database.createObjectStore(
'test-store', { keyPath: 'primaryKey', autoIncrement: true });
} else {
store = database.createObjectStore('test-store');
}
for (let i = 0; i < valueDescriptors.length; ++i) {
if (options.useKeyGenerator) {
store.put(createValue(valueDescriptors[i]));
} else {
store.put(createValue(valueDescriptors[i]), i + 1);
}
}
}).then(database => {
const transaction = database.transaction(['test-store'], 'readonly');
const store = transaction.objectStore('test-store');
const subChecks = [];
let resultIndex = 0;
for (let i = 0; i < valueDescriptors.length; ++i) {
subChecks.push(new Promise((resolve, reject) => {
const requestIndex = i;
const primaryKey = requestIndex + 1;
const request = store.get(primaryKey);
request.onerror =
testCase.step_func(() => { reject(request.error); });
request.onsuccess = testCase.step_func(() => {
assert_equals(
resultIndex, requestIndex,
'IDBRequest success events should be fired in request order');
++resultIndex;
const result = request.result;
if (options.useKeyGenerator) {
assert_equals(
result.primaryKey, primaryKey,
'IndexedDB result should have auto-incremented primary key');
delete result.primaryKey;
}
resolve(checkValue(
testCase, result, valueDescriptors[requestIndex]));
});
}));
}
subChecks.push(new Promise((resolve, reject) => {
const requestIndex = valueDescriptors.length;
const request = store.getAll();
request.onerror =
testCase.step_func(() => { reject(request.error); });
request.onsuccess = testCase.step_func(() => {
assert_equals(
resultIndex, requestIndex,
'IDBRequest success events should be fired in request order');
++resultIndex;
const result = request.result;
if (options.useKeyGenerator) {
for (let i = 0; i < valueDescriptors.length; ++i) {
const primaryKey = i + 1;
assert_equals(
result[i].primaryKey, primaryKey,
'IndexedDB result should have auto-incremented primary key');
delete result[i].primaryKey;
}
}
resolve(checkValue(testCase, result, valueDescriptors));
});
}));
return Promise.all(subChecks);
});
}, label);
}
// Performs a series of put()s and verifies that get()s and getAll() match.
//
// Each element of the valueDescriptors array is fed into createValue(), and the
// resulting value is written to IndexedDB via a put() request. After the writes
// complete, the values are read in the same order in which they were written.
// Last, all the results are read one more time via a getAll().
//
// The test verifies that the get() / getAll() results match the arguments to
// put() and that the order in which the get() result events are fired matches
// the order of the get() requests.
function cloningTest(label, valueDescriptors) {
cloningTestInternal(label, valueDescriptors, { useKeyGenerator: false });
}
// cloningTest, with coverage for key generators.
//
// This creates two tests. One test performs a series of put()s and verifies
// that get()s and getAll() match, exactly like cloningTestWithoutKeyGenerator.
// The other test performs the same put()s in an object store with a key
// generator, and checks that the key generator works properly.
function cloningTestWithKeyGenerator(label, valueDescriptors) {
cloningTestInternal(label, valueDescriptors, { useKeyGenerator: false });
cloningTestInternal(
label + " with key generator", valueDescriptors,
{ useKeyGenerator: true });
}
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