зеркало из https://github.com/mozilla/gecko-dev.git
147 строки
4.3 KiB
HTML
147 строки
4.3 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Key Generator behavior with explicit keys generator overflow</title>
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<link rel=help href="https://w3c.github.io/IndexedDB/#key-generator-construct">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support.js"></script>
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<script>
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function big_key_test(key, description) {
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indexeddb_test(
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(t, db) => {
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assert_equals(indexedDB.cmp(key, key), 0, 'Key is valid');
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db.createObjectStore('store', {autoIncrement: true});
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},
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(t, db) => {
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const tx = db.transaction('store', 'readwrite');
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const store = tx.objectStore('store');
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const value = 0;
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let request;
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request = store.put(value);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 1,
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'Key generator should initially be 1');
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});
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request = store.put(value);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 2,
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'Key generator should increment');
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});
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request = store.put(value, 1000);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 1000,
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'Explicit key should be used');
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});
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request = store.put(value);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 1001,
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'Key generator should have updated');
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});
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request = store.put(value, key);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, key,
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'Explicit key should be used');
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});
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if (key >= 0) {
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// Large positive values will max out the key generator, so it
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// can no longer produce keys.
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request = store.put(value);
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request.onsuccess = t.unreached_func('put should fail');
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request.onerror = t.step_func(e => {
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e.preventDefault();
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assert_equals(e.target.error.name, 'ConstraintError',
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'Key generator should have returned failure');
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});
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} else {
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// Large negative values are always lower than the key generator's
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// current number, so have no effect on the generator.
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request = store.put(value);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 1002,
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'Key generator should have updated');
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});
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}
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request = store.put(value, 2000);
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request.onerror = t.unreached_func('put should succeed');
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request.onsuccess = t.step_func(e => {
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assert_equals(e.target.result, 2000,
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'Explicit key should be used');
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});
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tx.onabort = t.step_func(() => {
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assert_unreached(`Transaction aborted: ${tx.error.message}`);
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});
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tx.oncomplete = t.step_func(() => { t.done(); });
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},
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description);
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}
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[
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{
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key: Number.MAX_SAFE_INTEGER + 1,
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description: '53 bits'
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},
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{
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key: Math.pow(2, 60),
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description: 'greater than 53 bits, less than 64 bits'
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},
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{
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key: -Math.pow(2, 60),
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description: 'greater than 53 bits, less than 64 bits (negative)'
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},
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{
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key: Math.pow(2, 63),
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description: '63 bits'
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},
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{
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key: -Math.pow(2, 63),
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description: '63 bits (negative)'
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},
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{
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key: Math.pow(2, 64),
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description: '64 bits'
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},
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{
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key: -Math.pow(2, 64),
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description: '64 bits (negative)'
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},
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{
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key: Math.pow(2, 70),
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description: 'greater than 64 bits, but still finite'
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},
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{
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key: -Math.pow(2, 70),
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description: 'greater than 64 bits, but still finite (negative)'
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},
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{
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key: Infinity,
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description: 'equal to Infinity'
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},
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{
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key: -Infinity,
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description: 'equal to -Infinity'
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}
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].forEach(function(testCase) {
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big_key_test(testCase.key,
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`Key generator vs. explicit key ${testCase.description}`);
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});
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</script>
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