public async Task ReactInstanceManager_Lifecycle_Cleanup_Old_Context()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
ReactInstanceManager manager = null;
await DispatcherHelpers.CallOnDispatcherAsync(() => manager = CreateReactInstanceManager(jsBundleFile, LifecycleState.Foreground));
var listener = new LifecycleEventsListener(new LifecycleEventsListener.Step[]
{
LifecycleEventsListener.Step.EnteredBackground,
LifecycleEventsListener.Step.Suspend,
});
await DispatcherHelpers.CallOnDispatcherAsync(async() =>
{
var context = await manager.CreateReactContextAsync(CancellationToken.None);
context.AddBackgroundEventListener(listener);
context.AddLifecycleEventListener(listener);
var newContext = await manager.RecreateReactContextAsync(CancellationToken.None);
});
listener.Dispose();
await DispatcherHelpers.CallOnDispatcherAsync(async() => await DisposeInstanceManager(manager));
}
public async Task ReactInstanceManager_Lifecycle_Dispose_From_Foreground()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
var manager = CreateReactInstanceManager(jsBundleFile, LifecycleState.Foreground);
var listener = new LifecycleEventsListener(new LifecycleEventsListener.Step[]
{
LifecycleEventsListener.Step.EnteredBackground,
LifecycleEventsListener.Step.Suspend,
LifecycleEventsListener.Step.Destroy,
});
await DispatcherHelpers.CallOnDispatcherAsync(async() =>
{
var context = await manager.CreateReactContextAsync(CancellationToken.None);
context.AddBackgroundEventListener(listener);
context.AddLifecycleEventListener(listener);
await manager.DisposeAsync();
});
listener.Dispose();
ReactNative.Bridge.DispatcherHelpers.Initialize();
}
public async Task ReactInstanceManager_CreateReactContextAsync_EnsuresOneCall()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
var manager = CreateReactInstanceManager(jsBundleFile);
var caught = false;
await DispatcherHelpers.RunOnDispatcherAsync(async() =>
{
var task = manager.CreateReactContextAsync(CancellationToken.None);
try
{
await manager.CreateReactContextAsync(CancellationToken.None);
}
catch (InvalidOperationException)
{
caught = true;
}
});
Assert.IsTrue(caught);
await DispatcherHelpers.CallOnDispatcherAsync(manager.DisposeAsync);
}
public async Task ReactInstanceManager_OnDestroy_CreateInBackground()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
var manager = CreateReactInstanceManager(jsBundleFile);
var waitHandle = new AutoResetEvent(false);
manager.ReactContextInitialized += (sender, args) => waitHandle.Set();
await DispatcherHelpers.RunOnDispatcherAsync(
() => manager.CreateReactContextInBackground());
Assert.IsTrue(waitHandle.WaitOne());
Assert.AreEqual(jsBundleFile, manager.SourceUrl);
await DispatcherHelpers.CallOnDispatcherAsync(manager.DisposeAsync);
await DispatcherHelpers.RunOnDispatcherAsync(
() => manager.CreateReactContextInBackground());
Assert.IsTrue(waitHandle.WaitOne());
await DispatcherHelpers.CallOnDispatcherAsync(manager.DisposeAsync);
}