public async Task LoadSingleKeyNull()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
// act
Task <string> Verify() => loader.LoadAsync(default(string) !, CancellationToken.None);
// assert
await Assert.ThrowsAsync <ArgumentNullException>("key", Verify);
}
public void DisposeNoExceptionNobatchingAndCaching()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
// act
Action verify = () => loader.Dispose();
// assert
Assert.Null(Record.Exception(verify));
}
public async Task LoadParamsKeysNull()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
// act
Task <IReadOnlyList <string> > Verify() => loader.LoadAsync(default(string[]) !);
// assert
await Assert.ThrowsAsync <ArgumentNullException>("keys", (Func <Task <IReadOnlyList <string> > >) Verify);
}
public void DisposeNoExceptionNoBatchingAndCaching()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
// act
void Verify() => loader.Dispose();
// assert
Assert.Null(Record.Exception(Verify));
}
public void SetNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var key = "Foo";
// act
void Verify() => loader.Set(key, null !);
// assert
Assert.Throws <ArgumentNullException>(Verify);
}
public void SetKeyNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var value = "Bar";
// act
void Verify() => loader.Set(null !, value);
// assert
Assert.Throws <ArgumentNullException>("key", (Action)Verify);
}
public async Task IDataLoaderLoadCollectionKeysNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
List <object> keys = null;
// act
Func <Task <IReadOnlyList <object> > > verify = () => loader.LoadAsync(keys);
// assert
await Assert.ThrowsAsync <ArgumentNullException>("keys", verify);
}
public async Task LoadSingleKeyNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
string key = null;
// act
Func <Task <string> > verify = () => loader.LoadAsync(key);
// assert
await Assert.ThrowsAsync <ArgumentNullException>("key", verify);
}
public async Task IDataLoaderLoadCollectionZeroKeys()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
var keys = new List <object>();
// act
IReadOnlyList <object> loadResult = await loader.LoadAsync(keys);
// assert
Assert.Empty(loadResult);
}
public void IDataLoaderLoadCollectionNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers
.CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
// act
Action verify = () => loader.LoadAsync(new List <object>());
// assert
Assert.Null(Record.Exception(verify));
}
public void IDataLoaderRemoveNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = "Foo";
// act
Action verify = () => loader.Remove(key);
// assert
Assert.Null(Record.Exception(verify));
}
public void LoadSingleNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers
.CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
var key = "Foo";
// act
Action verify = () => loader.LoadAsync(key);
// assert
Assert.Null(Record.Exception(verify));
}
public void SetNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
var key = "Foo";
string value = null;
// act
Action verify = () => loader.Set(key, value);
// assert
Assert.Null(Record.Exception(verify));
}
public void SetKeyNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
string key = null;
var value = Task.FromResult("Foo");
// act
Action verify = () => loader.Set(key, value);
// assert
Assert.Throws <ArgumentNullException>("key", verify);
}
public void IDataLoaderSetNoException()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = "Foo";
Task <object> value = Task.FromResult <object>("Bar");
// act
Action verify = () => loader.Set(key, value);
// assert
Assert.Null(Record.Exception(verify));
}
public void IDataLoaderSetValueNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = "Foo";
Task <object> value = null;
// act
Action verify = () => loader.Set(key, value);
// assert
Assert.Throws <ArgumentNullException>("value", verify);
}
public void IDataLoaderRemoveKeyNull()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = null;
loader.Set("Foo", Task.FromResult((object)"Bar"));
// act
Action verify = () => loader.Remove(key);
// assert
Assert.Throws <ArgumentNullException>("key", verify);
}
public async Task LoadCollectionZeroKeys()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
var keys = new List <string>();
// act
Task <IReadOnlyList <string> > loadResult = loader.LoadAsync(keys);
// assert
await Task.Delay(25);
batchScheduler.Dispatch();
Assert.Empty(await loadResult);
}
public async Task LoadSingleResult()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var key = "Foo";
// act
Task <string> loadResult = loader.LoadAsync(key);
// assert
await Task.Delay(25);
batchScheduler.Dispatch();
(await loadResult).MatchSnapshot();
}
public async Task SetNewCacheEntry()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var key = "Foo";
var value = "Bar";
// act
loader.Set(key, value);
// assert
var loadResult = await loader.LoadAsync(key).ConfigureAwait(false);
Assert.Equal(value, loadResult);
}
public async Task IDataLoaderLoadParamsResult()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers
.CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
var keys = new object[] { "Foo" };
// act
Task <IReadOnlyList <object> > loadResult = loader.LoadAsync(keys);
// assert
await Task.Delay(25);
batchScheduler.Dispatch();
(await loadResult).MatchSnapshot();
}
public async Task IDataLoaderLoadSingleResult()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers
.CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = "Foo";
// act
Task <object> loadResult = loader.LoadAsync(key);
// assert
await Task.Delay(25);
batchScheduler.Dispatch();
(await loadResult).MatchSnapshot();
}
public async Task LoadCollectionResult()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>("Bar");
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var keys = new List <string> {
"Foo"
};
// act
Task <IReadOnlyList <string> > loadResult = loader.LoadAsync(keys, CancellationToken.None);
batchScheduler.Dispatch();
// assert
(await loadResult).MatchSnapshot();
}
public async Task LoadKeyAndValueCountNotEquel()
{
// arrange
InvalidOperationException expectedException = Errors
.CreateKeysAndValuesMustMatch(4, 3);
Result <string> expectedResult = "Bar";
var repository = new Dictionary <string, string>
{
{ "Foo", "Bar" },
{ "Bar", "Baz" },
{ "Baz", "Foo" }
};
FetchDataDelegate <string, string> fetch =
async(keys, cancellationToken) =>
{
var values = new List <Result <string> >();
foreach (var key in keys)
{
if (repository.ContainsKey(key))
{
values.Add(repository[key]);
}
}
return(await Task.FromResult(values));
};
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(batchScheduler, fetch);
var requestKeys = new [] { "Foo", "Bar", "Baz", "Qux" };
// act
Func <Task> verify = () => loader.LoadAsync(requestKeys);
// assert
Task <InvalidOperationException> task = Assert
.ThrowsAsync <InvalidOperationException>(verify);
batchScheduler.Dispatch();
InvalidOperationException actualException = await task;
Assert.Equal(expectedException.Message, actualException.Message);
}
public async Task SetTwice()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var key = "Foo";
var first = "Bar";
var second = "Baz";
// act
loader.Set(key, first);
loader.Set(key, second);
// assert
var loadResult = await loader.LoadAsync(key).ConfigureAwait(false);
Assert.Equal(first, loadResult);
}
public void IDataLoaderSetNewCacheEntry()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var cache = new TaskCache(10);
var options = new DataLoaderOptions <string>
{
Cache = cache
};
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch, options);
object key = "Foo";
Task <object> value = Task.FromResult <object>("Bar");
// act
loader.Set(key, value);
// assert
Assert.Equal(1, cache.Usage);
}
public void ClearAllEntries()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var cache = new TaskCache(10);
var options = new DataLoaderOptions {
Cache = cache
};
var loader = new DataLoader <string, string>(fetch, batchScheduler, options);
loader.Set("Foo", Task.FromResult("Bar"));
loader.Set("Bar", Task.FromResult("Baz"));
// act
loader.Clear();
// assert
Assert.Equal(0, cache.Usage);
}
public async Task LoadSingleErrorResult()
{
// arrange
FetchDataDelegate <string, string> fetch = CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var loader = new DataLoader <string, string>(fetch, batchScheduler);
var key = "Foo";
// act
Task <string> Verify() => loader.LoadAsync(key, CancellationToken.None);
// assert
Task <InvalidOperationException> task = Assert
.ThrowsAsync <InvalidOperationException>((Func <Task <string> >)Verify);
await Task.Delay(25);
batchScheduler.Dispatch();
await task;
}
public void IDataLoaderRemoveEntry()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
var cache = new TaskCache(10);
var options = new DataLoaderOptions <string>
{
Cache = cache
};
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch, options);
object key = "Foo";
loader.Set(key, Task.FromResult((object)"Bar"));
// act
loader.Remove(key);
// assert
Assert.Equal(0, cache.Usage);
}
public async Task IDataLoaderLoadSingleErrorResult()
{
// arrange
FetchDataDelegate <string, string> fetch = TestHelpers.CreateFetch <string, string>();
var batchScheduler = new ManualBatchScheduler();
IDataLoader loader = new DataLoader <string, string>(batchScheduler, fetch);
object key = "Foo";
// act
Func <Task <object> > verify = () => loader.LoadAsync(key);
// assert
Task <InvalidOperationException> task = Assert
.ThrowsAsync <InvalidOperationException>(verify);
await Task.Delay(25);
batchScheduler.Dispatch();
await task;
}
