/
lazy_box_impl_test.dart
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/
lazy_box_impl_test.dart
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import 'package:hive/hive.dart';
import 'package:hive/src/backend/storage_backend.dart';
import 'package:hive/src/binary/frame.dart';
import 'package:hive/src/box/change_notifier.dart';
import 'package:hive/src/box/keystore.dart';
import 'package:hive/src/box/lazy_box_impl.dart';
import 'package:hive/src/hive_impl.dart';
import 'package:mockito/mockito.dart';
import 'package:test/test.dart';
import 'common.dart';
LazyBoxImpl _getBox({
String name,
HiveImpl hive,
Keystore keystore,
CompactionStrategy cStrategy,
StorageBackend backend,
}) {
var box = LazyBoxImpl(
hive ?? HiveImpl(),
name ?? 'testBox',
null,
cStrategy ?? (total, deleted) => false,
backend ?? BackendMock(),
);
box.keystore = keystore ?? Keystore(box, ChangeNotifier());
return box;
}
void main() {
group('LazyBoxImpl', () {
test('.values', () {
var box = _getBox();
expect(() => box.values, throwsUnsupportedError);
});
group('.get()', () {
test('returns defaultValue if key does not exist', () async {
var backend = BackendMock();
var box = _getBox(backend: backend);
expect(await box.get('someKey'), null);
expect(await box.get('otherKey', defaultValue: -12), -12);
verifyZeroInteractions(backend);
});
test('reads value from backend', () async {
var backend = BackendMock();
when(backend.readValue(any)).thenAnswer((i) async => 'testVal');
var box = _getBox(backend: backend);
var frame = Frame.lazy('testKey', length: 123, offset: 456);
box.keystore.insert(frame);
expect(await box.get('testKey'), 'testVal');
verify(backend.readValue(frame));
});
});
test('.getAt()', () async {
var keystore = Keystore.debug(frames: [
Frame.lazy(0),
Frame.lazy('a'),
]);
var backend = BackendMock();
when(backend.readValue(any)).thenAnswer((i) {
return Future.value('A');
});
var box = _getBox(keystore: keystore, backend: backend);
expect(await box.getAt(1), 'A');
});
group('.putAll()', () {
test('values', () async {
var backend = BackendMock();
var keystore = KeystoreMock();
when(keystore.containsKey(any)).thenReturn(false);
var box = _getBox(
backend: backend,
keystore: keystore,
);
await box.putAll({'key1': 'value1', 'key2': 'value2'});
verifyInOrder([
backend.writeFrames([
Frame('key1', 'value1'),
Frame('key2', 'value2'),
]),
keystore.insert(Frame.lazy('key1')),
keystore.insert(Frame.lazy('key2')),
]);
});
test('handles exceptions', () async {
var backend = BackendMock();
var keystore = KeystoreMock();
when(backend.writeFrames(any)).thenThrow('Some error');
when(keystore.containsKey(any)).thenReturn(true);
var box = _getBox(
backend: backend,
keystore: keystore,
);
await expectLater(
() async => await box.putAll(
{'key1': 'value1', 'key2': 'value2'},
),
throwsA(anything),
);
verifyInOrder([
backend.writeFrames([
Frame('key1', 'value1'),
Frame('key2', 'value2'),
]),
]);
verifyNoMoreInteractions(keystore);
});
});
group('.deleteAll()', () {
test('does nothing when deleting non existing keys', () async {
var backend = BackendMock();
var keystore = KeystoreMock();
when(keystore.containsKey(any)).thenReturn(false);
var box = _getBox(
backend: backend,
keystore: keystore,
);
await box.deleteAll(['key1', 'key2', 'key3']);
verifyZeroInteractions(backend);
});
test('delete keys', () async {
var backend = BackendMock();
var keystore = KeystoreMock();
when(keystore.containsKey(any)).thenReturn(true);
var box = _getBox(
backend: backend,
keystore: keystore,
);
await box.deleteAll(['key1', 'key2']);
verifyInOrder([
keystore.containsKey('key1'),
keystore.containsKey('key2'),
backend.writeFrames([Frame.deleted('key1'), Frame.deleted('key2')]),
keystore.insert(Frame.deleted('key1')),
keystore.insert(Frame.deleted('key2')),
]);
});
});
test('.toMap()', () async {
var box = _getBox();
expect(box.toMap, throwsUnsupportedError);
});
});
}