public async Task Should_not_load_items_if_another_initialization_is_in_progressAsync()
{
//Arrange
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
var testHelper = new AsyncReadTester();
storagefolder
.Setup(fake => fake.GetStoredItemsAsync())
.Returns(testHelper.ReadAsync());
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
var firstInit = datastore.InitializeAsync();
//Act
var secondInit = datastore.InitializeAsync();
testHelper.StopFakeReading();
await Task.WhenAll(firstInit, secondInit);
//Assert
Assert.IsFalse(testHelper.CalledWhileInProgress);
}
public async Task Should_not_try_to_write_files_if_another_instance_is_reading()
{
//Arrange
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
var testHelper = new AsyncReadTester();
storagefolder
.Setup(mock => mock.GetStoredItemsAsync())
.Returns(testHelper.ReadAsync());
storagefolder
.Setup(mock => mock.CreateFileForItemAsync(It.IsAny <FileStoredStory>(), It.IsAny <string>()))
.Callback(() => testHelper.SetOtherFunctionCalled());
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore1 = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
var datastore2 = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
var reading = datastore1.InitializeAsync();
//Act
var writing = datastore2.AddOrUpdateAsync(new[] { new Story() });
testHelper.StopFakeReading();
await Task.WhenAll(reading, writing);
//Assert
Assert.IsFalse(testHelper.CalledWhileInProgress);
}
public void Initialize_stores_the_retrieved_items_in_the_DataStore()
{
//Arrange
var story = new FileStoredStory
{
Id = 42
};
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
storagefolder
.Setup(fake => fake.GetStoredItemsAsync())
.Returns(MakeAsync(new[] { story }));
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
//Act
datastore.InitializeAsync().Wait();
//Assert
var result = datastore.GetAllAsync().Result;
Assert.AreEqual(story.Id, result.Single().Id);
}
public void Get_retrieves_stories_with_requested_ids()
{
//Arrange
var id1 = 42;
var id2 = 27;
var story1 = new FileStoredStory
{
Id = id1
};
var story2 = new FileStoredStory
{
Id = id2
};
var story3 = new FileStoredStory
{
Id = 123
};
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
storagefolder
.Setup(fake => fake.GetStoredItemsAsync())
.Returns(MakeAsync(new[] { story1, story2, story3 }));
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
datastore.InitializeAsync().Wait();
//Act
var result = datastore.GetAsync(new[] { id1, id2 }).Result;
//Assert
var containsStory1 = result.Any(b => b.Id == id1);
var containsStory2 = result.Any(b => b.Id == id2);
Assert.IsTrue(containsStory1);
Assert.IsTrue(containsStory2);
Assert.AreEqual(2, result.Count());
}
public void Initializing_gets_the_items_from_StorageFolder()
{
//Arrange
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
storagefolder
.Setup(fake => fake.GetStoredItemsAsync())
.Returns(MakeAsync(new List <FileStoredStory>()));
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
//Act
datastore.InitializeAsync().Wait();
//Assert
storagefolder.Verify(mock => mock.GetStoredItemsAsync(), Times.Once);
}
public void IsInitialized_is_true_after_calling_initialize()
{
//Arrange
var storagefolder = new Mock <IStorageFolder <FileStoredStory> >();
storagefolder
.Setup(fake => fake.GetStoredItemsAsync())
.Returns(MakeAsync(new List <FileStoredStory>()));
var folderprovider = new Mock <IStorageFolderProvider>();
folderprovider
.Setup(fake => fake.GetStorageFolder <FileStoredStory>(It.IsAny <string>()))
.Returns(storagefolder.Object);
var datastore = new InMemoryFileBackedStoryDataStore(folderprovider.Object);
//Act
datastore.InitializeAsync().Wait();
//Assert
Assert.IsTrue(datastore.IsInitialized);
}