public async Task WhenFindingAndItemNotPresentThenStoreHitTest()
{
var userId = Guid.NewGuid().ToString();
var cache = new MemoryCache(new MemoryCacheOptions());
var innerStore = new Mock <ISettingsDataStore>();
innerStore.Setup(x => x.FindAsync(It.Is <string>(s => s == userId)))
.ReturnsAsync(new UserSettings {
UserId = userId
});
var store = new InMemoryCachedSettingsDataStore(innerStore.Object, cache, new InMemoryCachingOptions());
var result = await store.FindAsync(userId);
var resultNext = await store.FindAsync(userId);
Assert.NotNull(result);
Assert.NotNull(resultNext);
Assert.Equal(resultNext, result);
Assert.True(cache.TryGetValue(GetKey(userId), out var cachedResult));
Assert.NotNull(cachedResult);
Assert.Equal(1, cache.Count);
innerStore.Verify(x => x.FindAsync(It.IsAny <string>()), Times.Once);
}
public async Task WhenCheckingForExistenceAndItemNotPresentThenStoreHitTest()
{
var userId = Guid.NewGuid().ToString();
var cache = new MemoryCache(new MemoryCacheOptions());
var innerStore = new Mock <ISettingsDataStore>();
innerStore.Setup(x => x.DoesExistAsync(It.Is <string>(s => s == userId))).ReturnsAsync(true);
var store = new InMemoryCachedSettingsDataStore(innerStore.Object, cache, new InMemoryCachingOptions());
var result = await store.DoesExistAsync(userId);
Assert.True(result);
Assert.Equal(0, cache.Count);
}
public async Task WhenSavingNewEntityObjectIsNotAddedToCacheTest()
{
var cache = new MemoryCache(new MemoryCacheOptions());
var innerStore = new Mock <ISettingsDataStore>();
UserSettings newSettings = null;
innerStore.Setup(x => x.SaveAsync(It.IsAny <UserSettings>()))
.Callback <UserSettings>(settings => newSettings = settings)
.ReturnsAsync(() => newSettings);
var store = new InMemoryCachedSettingsDataStore(innerStore.Object, cache, new InMemoryCachingOptions());
var result = await store.SaveAsync(new UserSettings());
Assert.NotNull(result);
Assert.Equal(0, cache.Count);
}
public async Task WhenFindingAndItemPresentThenStoreNotHitTest()
{
var userId = Guid.NewGuid().ToString();
var cache = new MemoryCache(new MemoryCacheOptions());
cache.GetOrCreate(GetKey(userId), entry => new UserSettings {
UserId = userId
});
var innerStore = new Mock <ISettingsDataStore>();
var store = new InMemoryCachedSettingsDataStore(innerStore.Object, cache, new InMemoryCachingOptions());
var result = await store.FindAsync(userId);
Assert.NotNull(result);
innerStore.Verify(x => x.FindAsync(It.IsAny <string>()), Times.Never);
Assert.Equal(1, cache.Count);
}
public async Task WhenUpdatingThenRemovedFromCacheTest()
{
var userId = Guid.NewGuid().ToString();
var cache = new MemoryCache(new MemoryCacheOptions());
cache.GetOrCreate(GetKey(userId), entry => new UserSettings {
UserId = userId
});
var innerStore = new Mock <ISettingsDataStore>();
UserSettings newSettings = null;
innerStore.Setup(x => x.UpdateAsync(It.IsAny <UserSettings>()))
.Callback <UserSettings>(settings => newSettings = settings)
.ReturnsAsync(() => newSettings);
var store = new InMemoryCachedSettingsDataStore(innerStore.Object, cache, new InMemoryCachingOptions());
var result = await store.UpdateAsync(new UserSettings { UserId = userId });
Assert.NotNull(result);
innerStore.Verify(x => x.FindAsync(It.IsAny <string>()), Times.Never);
Assert.Equal(0, cache.Count);
}