public void Requests_Null_Method_Call()
{
var messenger = Substitute.For <IBinaryMessenger>();
var channel = new MethodChannel(TEST_CHANNEL_NAME, StandardMethodCodec.Instance, messenger);
Assert.ThrowsAsync <ArgumentNullException>(() => channel.InvokeMethodAsync(null));
}
public async void Requests_Correct_MethodCall_And_Returns_Success_Envelope()
{
var messenger = Substitute.For <IBinaryMessenger>();
var codec = StandardMethodCodec.Instance;
var channel = new MethodChannel(TEST_CHANNEL_NAME, codec, messenger);
var call = new MethodCall(TEST_METHOD_NAME, new int[] { 1, 2, 5 });
byte[] encodedCall = codec.EncodeMethodCall(call);
messenger.SendAsync(TEST_CHANNEL_NAME, Arg.Any <byte[]>())
.Returns(codec.EncodeSuccessEnvelope("TEST_RESULT"));
var result = await channel.InvokeMethodAsync(call.Method, call.Arguments) as string;
await messenger.Received().SendAsync(Arg.Is <string>(x => x == TEST_CHANNEL_NAME),
Arg.Is <byte[]>(x => x.SequenceEqual(encodedCall)));
Assert.Equal("TEST_RESULT", result);
}
public async void Requests_Correct_MethodCall_And_Returns_Error_Envelope()
{
var messenger = Substitute.For <IBinaryMessenger>();
var codec = StandardMethodCodec.Instance;
var channel = new MethodChannel(TEST_CHANNEL_NAME, codec, messenger);
var call = new MethodCall(TEST_METHOD_NAME, new int[] { 1, 2, 5 });
messenger.SendAsync(TEST_CHANNEL_NAME, Arg.Any <byte[]>())
.Returns(codec.EncodeErrorEnvelope("E0001", "TEST_ERROR", "TEST_ERROR_DETAILS"));
var ex = await Assert.ThrowsAsync <FlutterException>(() =>
{
return(channel.InvokeMethodAsync(call.Method, call.Arguments));
});
Assert.Equal("E0001", ex.Code);
Assert.Equal("TEST_ERROR", ex.Message);
Assert.Equal("TEST_ERROR_DETAILS", ex.Details as string);
}