public void TrackObjectReference_AllowsMultipleCallsUsingTheSameJSRuntime()
{
// Arrange
var jsRuntime = new TestJSRuntime();
var objRef = DotNetObjectReference.Create(new object());
// Act
var objectId1 = jsRuntime.TrackObjectReference(objRef);
var objectId2 = jsRuntime.TrackObjectReference(objRef);
// Act
Assert.Equal(objectId1, objectId2);
}
public void TrackObjectReference_AssignsObjectId()
{
// Arrange
var jsRuntime = new TestJSRuntime();
var objRef = DotNetObjectReference.Create(new object());
// Act
var objectId = jsRuntime.TrackObjectReference(objRef);
// Act
Assert.Equal(objectId, objRef.ObjectId);
Assert.Equal(1, objRef.ObjectId);
}
public void DoubleDispose_Works()
{
// Arrange
var objRef = DotNetObjectReference.Create("Hello world");
var jsRuntime = new TestJSRuntime();
jsRuntime.TrackObjectReference(objRef);
var objectId = objRef.ObjectId;
// Act
Assert.Same(objRef, jsRuntime.GetObjectReference(objectId));
objRef.Dispose();
// Assert
objRef.Dispose();
// If we got this far, this did not throw.
}
public void TrackObjectReference_ThrowsIfDifferentJSRuntimeInstancesAreUsed()
{
// Arrange
var objRef = DotNetObjectReference.Create("Hello world");
var expected = $"{objRef.GetType().Name} is already being tracked by a different instance of {nameof(JSRuntime)}. A common cause is caching an instance of {nameof(DotNetObjectReference<string>)}" +
$" globally. Consider creating instances of {nameof(DotNetObjectReference<string>)} at the JSInterop callsite.";
var jsRuntime1 = new TestJSRuntime();
var jsRuntime2 = new TestJSRuntime();
jsRuntime1.TrackObjectReference(objRef);
// Act
var ex = Assert.Throws <InvalidOperationException>(() => jsRuntime2.TrackObjectReference(objRef));
// Assert
Assert.Equal(expected, ex.Message);
}
public void Dispose_StopsTrackingObject()
{
// Arrange
var objRef = DotNetObjectReference.Create("Hello world");
var jsRuntime = new TestJSRuntime();
jsRuntime.TrackObjectReference(objRef);
var objectId = objRef.ObjectId;
var expected = $"There is no tracked object with id '{objectId}'. Perhaps the DotNetObjectReference instance was already disposed.";
// Act
Assert.Same(objRef, jsRuntime.GetObjectReference(objectId));
objRef.Dispose();
// Assert
Assert.True(objRef.Disposed);
Assert.Throws <ArgumentException>(() => jsRuntime.GetObjectReference(objectId));
}
