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<title>IndexedDB: Exceptions in extracting keys from values (ES bindings)</title>
<meta name="help" href="https://w3c.github.io/IndexedDB/#extract-key-from-value">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support.js"></script>
<script>
indexeddb_test(
(t, db) => {
db.createObjectStore('store', {autoIncrement: true, keyPath: 'a.b.c'});
},
(t, db) => {
const tx = db.transaction('store', 'readwrite');
assert_throws({name: 'DataError'}, () => {
tx.objectStore('store').put({a: {b: "foo"}});
}, 'Put should throw if key can not be inserted at key path location.');
t.done();
},
'The last element of keypath is validated'
);
function throws(name) {
return () => {
const err = Error();
err.name = name;
throw err;
};
}
indexeddb_test(
function(t, db) {
const o = {};
Object.defineProperty(o, 'throws', {get: throws('getter'),
enumerable: false, configurable: true});
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no such property, so key path evaluation
// will fail.
const s1 = db.createObjectStore('s1', {keyPath: 'throws'});
assert_throws('DataError', () => {
s1.put(o);
}, 'Key path failing to resolve should throw');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no such property, so key path evaluation
// will fail.
const s2 = db.createObjectStore('s2', {keyPath: 'throws.x'});
assert_throws('DataError', () => {
s2.put(o);
}, 'Key path failing to resolve should throw');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no such property, so generated key can be
// inserted.
const s3 = db.createObjectStore('s3',
{keyPath: 'throws', autoIncrement: true});
assert_class_string(s3.put(o), 'IDBRequest',
'Key injectability test at throwing getter should succeed');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no such property, so intermediate object
// and generated key can be inserted.
const s4 = db.createObjectStore('s4',
{keyPath: 'throws.x', autoIncrement: true});
assert_class_string(s4.put(o), 'IDBRequest',
'Key injectability test past throwing getter should succeed');
},
(t, db) => {
t.done();
},
'Key path evaluation: Exceptions from non-enumerable getters'
);
indexeddb_test(
function(t, db) {
const o = {};
Object.defineProperty(o, 'throws', {get: throws('getter'),
enumerable: true, configurable: true});
// Value should be cloned before key path is evaluated,
// and enumerable getter will rethrow.
const s1 = db.createObjectStore('s1', {keyPath: 'throws'});
assert_throws({name: 'getter'}, () => {
s1.put(o);
}, 'Key path resolving to throwing getter rethrows');
// Value should be cloned before key path is evaluated,
// and enumerable getter will rethrow.
const s2 = db.createObjectStore('s2', {keyPath: 'throws.x'});
assert_throws({name: 'getter'}, () => {
s2.put(o);
}, 'Key path resolving past throwing getter rethrows');
// Value should be cloned before key path is evaluated,
// and enumerable getter will rethrow.
const s3 = db.createObjectStore('s3',
{keyPath: 'throws', autoIncrement: true});
assert_throws({name: 'getter'}, () => {
s3.put(o);
}, 'Key injectability test at throwing getter should rethrow');
// Value should be cloned before key path is evaluated,
// and enumerable getter will rethrow.
const s4 = db.createObjectStore('s4',
{keyPath: 'throws.x', autoIncrement: true});
assert_throws({name: 'getter'}, () => {
s4.put(o);
}, 'Key injectability test past throwing getter should rethrow');
},
(t, db) => {
t.done();
},
'Key path evaluation: Exceptions from enumerable getters'
);
indexeddb_test(
(t, db) => {
// Implemented as function wrapper to clean up
// immediately after use, otherwise it may
// interfere with the test harness.
function with_proto_getter(f) {
return function() {
Object.defineProperty(Object.prototype, 'throws', {
get: throws('getter'),
enumerable: false, configurable: true
});
try {
f();
} finally {
delete Object.prototype['throws'];
}
};
}
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no own property, so key path evaluation will
// fail and DataError should be thrown.
const s1 = db.createObjectStore('s1', {keyPath: 'throws'});
assert_throws('DataError', with_proto_getter(function() {
s1.put({});
}), 'Key path resolving to no own property throws DataError');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no own property, so key path evaluation will
// fail and DataError should be thrown.
const s2 = db.createObjectStore('s2', {keyPath: 'throws.x'});
assert_throws('DataError', with_proto_getter(function() {
s2.put({});
}), 'Key path resolving past no own property throws DataError');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no own property, so key path evaluation will
// fail and injection can succeed.
const s3 = db.createObjectStore('s3',
{keyPath: 'throws', autoIncrement: true});
assert_equals(s3.put({}).readyState, 'pending',
'put should not throw due to inherited property');
// Value should be cloned before key path is evaluated,
// and non-enumerable getter will be ignored. The clone
// will have no own property, so key path evaluation will
// fail and injection can succeed.
const s4 = db.createObjectStore('s4',
{keyPath: 'throws.x', autoIncrement: true});
assert_equals(s4.put({}).readyState, 'pending',
'put should not throw due to inherited property');
},
(t, db) => {
t.done();
},
'Key path evaluation: Exceptions from non-enumerable getters on prototype'
);
indexeddb_test(
(t, db) => {
// Implemented as function wrapper to clean up
// immediately after use, otherwise it may
// interfere with the test harness.
function with_proto_getter(f) {
return () => {
Object.defineProperty(Object.prototype, 'throws', {
get: throws('getter'),
enumerable: true, configurable: true
});
try {
f();
} finally {
delete Object.prototype['throws'];
}
};
}
// Value should be cloned before key path is evaluated.
// The clone will have no own property, so key path
// evaluation will fail and DataError should be thrown.
const s1 = db.createObjectStore('s1', {keyPath: 'throws'});
assert_throws('DataError', with_proto_getter(function() {
s1.put({});
}), 'Key path resolving to no own property throws DataError');
// Value should be cloned before key path is evaluated.
// The clone will have no own property, so key path
// evaluation will fail and DataError should be thrown.
const s2 = db.createObjectStore('s2', {keyPath: 'throws.x'});
assert_throws('DataError', with_proto_getter(function() {
s2.put({});
}), 'Key path resolving past throwing getter rethrows');
// Value should be cloned before key path is evaluated.
// The clone will have no own property, so key path
// evaluation will fail and injection can succeed.
var s3 = db.createObjectStore('s3',
{keyPath: 'throws', autoIncrement: true});
assert_equals(s3.put({}).readyState, 'pending',
'put should not throw due to inherited property');
// Value should be cloned before key path is evaluated.
// The clone will have no own property, so key path
// evaluation will fail and injection can succeed.
var s4 = db.createObjectStore('s4',
{keyPath: 'throws.x', autoIncrement: true});
assert_equals(s4.put({}).readyState, 'pending',
'put should not throw due to inherited property');
},
(t, db) => {
t.done();
},
'Key path evaluation: Exceptions from enumerable getters on prototype'
);
indexeddb_test(
(t, db) => {
const store = db.createObjectStore('store');
store.createIndex('index', 'index0');
},
(t, db) => {
const tx = db.transaction('store', 'readwrite');
const array = [];
array[99] = 1;
let getter_called = 0;
const prop = '50';
Object.defineProperty(Object.prototype, prop, {
enumerable: true, configurable: true,
get: () => {
++getter_called;
return 'foo';
},
});
const request = tx.objectStore('store').put({index0: array}, 'key');
request.onerror = t.unreached_func('put should not fail');
request.onsuccess = t.step_func(function() {
assert_equals(getter_called, 0, 'Prototype getter should not be called');
delete Object.prototype[prop];
t.done();
});
},
'Array key conversion should not invoke prototype getters'
);
</script>