public async Task InitializesTheCurrentObservableWithTheStoredValueFromTheStorage()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var storedValue = new TestModel(456, SyncStatus.InSync);
storage.Single().Returns(Observable.Return(storedValue));
var dataSource = new TestSingletonSource(storage, null);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(storedValue.Id);
}
public async Task InitializesTheCurrentObservableWithTheDefaultValueIfTheStorageDoesNotContainTheObject()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var defaultValue = new TestModel(123, SyncStatus.InSync);
storage.Single().Returns(Observable.Throw <IDatabaseTestModel>(new Exception()));
var dataSource = new TestSingletonSource(storage, defaultValue);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(defaultValue.Id);
}
public async Task IgnoresTheDefaultValueWhenTheStorageContainsSomeValue()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var defaultValue = new TestModel(123, SyncStatus.InSync);
var storedValue = new TestModel(456, SyncStatus.InSync);
storage.Single().Returns(Observable.Return(storedValue));
var dataSource = new TestSingletonSource(storage, defaultValue);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(storedValue.Id);
}
public async Task UpdatesTheCurrentObservableValueWhenTheStoredValueIsCreated()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var createdValue = new TestModel(123, SyncStatus.InSync);
storage.Single().Returns(Observable.Throw <IDatabaseTestModel>(new Exception()));
storage.BatchUpdate(null, null, null)
.ReturnsForAnyArgs(Observable.Return(new[] { new CreateResult <IDatabaseTestModel>(createdValue) }));
var dataSource = new TestSingletonSource(storage, null);
await dataSource.UpdateWithConflictResolution(createdValue);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(createdValue.Id);
}
public async Task UpdatesTheCurrentObservableValue()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var updatedValue = new TestModel(123, SyncStatus.InSync);
var storedValue = new TestModel(456, SyncStatus.InSync);
storage.Single().Returns(Observable.Return(storedValue));
storage.Update(storedValue.Id, updatedValue).Returns(Observable.Return(updatedValue));
var dataSource = new TestSingletonSource(storage, null);
await dataSource.Overwrite(storedValue, updatedValue);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(updatedValue.Id);
}
public async Task UpdatesTheCurrentObservableValue()
{
var storage = Substitute.For <ISingleObjectStorage <IDatabaseTestModel> >();
var updatedValue = new TestModel(123, SyncStatus.InSync);
var storedValue = new TestModel(456, SyncStatus.InSync);
storage.Single().Returns(Observable.Return(storedValue));
storage.BatchUpdate(null, null, null)
.ReturnsForAnyArgs(Observable.Return(new[] { new UpdateResult <IDatabaseTestModel>(storedValue.Id, updatedValue) }));
var dataSource = new TestSingletonSource(storage, null);
await dataSource.OverwriteIfOriginalDidNotChange(storedValue, updatedValue);
var value = await dataSource.Current.FirstAsync();
value.Id.Should().Be(updatedValue.Id);
}
