public async Task ReactInstanceManager_ArgumentChecks()
{
var manager = CreateReactInstanceManager();
AssertEx.Throws <ArgumentNullException>(
() => manager.AttachMeasuredRootView(null),
ex => Assert.AreEqual("rootView", ex.ParamName));
AssertEx.Throws <ArgumentNullException>(
() => manager.CreateAllViewManagers(null),
ex => Assert.AreEqual("reactContext", ex.ParamName));
AssertEx.Throws <ArgumentNullException>(
() => manager.DetachRootView(null),
ex => Assert.AreEqual("rootView", ex.ParamName));
AssertEx.Throws <ArgumentNullException>(
() => manager.OnResume(null),
ex => Assert.AreEqual("onBackPressed", ex.ParamName));
await DispatcherHelpers.RunOnDispatcherAsync(manager.OnDestroy);
}
public async Task ReactInstanceManager_RecreateReactContextAsync_EnsuresCalledOnce()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
var manager = CreateReactInstanceManager(jsBundleFile);
var caught = false;
await DispatcherHelpers.RunOnDispatcherAsync(async() =>
{
try
{
await manager.RecreateReactContextAsync(CancellationToken.None);
}
catch (InvalidOperationException)
{
caught = true;
}
});
Assert.IsTrue(caught);
await DispatcherHelpers.CallOnDispatcherAsync(manager.DisposeAsync);
}
public async Task ReactInstanceManager_RecreateInBackground_EnsuresCalledOnce()
{
var jsBundleFile = "ms-appx:///Resources/test.js";
var manager = CreateReactInstanceManager(jsBundleFile);
var caught = false;
await DispatcherHelpers.RunOnDispatcherAsync(() =>
{
try
{
manager.RecreateReactContextInBackground();
}
catch (InvalidOperationException)
{
caught = true;
}
});
Assert.IsTrue(caught);
await DispatcherHelpers.RunOnDispatcherAsync(manager.OnDestroy);
}
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);
}
