public async Task SimpleEval()
{
var block = new RCodeBlock(0, string.Empty);
var evaluator = new RCodeEvaluator(_documentName, _shell.Services);
await evaluator.EvaluateBlockAsync(block, CancellationToken.None);
block.State.Should().Be(CodeBlockState.Evaluated);
}
public async Task Exception()
{
_interaction.When(s => s.RespondAsync(Arg.Any <string>())).Do(c => throw new RException("disconnected"));
var block = new RCodeBlock(0, string.Empty);
var evaluator = new RCodeEvaluator(_documentName, _shell.Services);
await evaluator.EvaluateBlockAsync(block, CancellationToken.None);
block.Result.Should().Contain("<code");
block.Result.Should().Contain("disconnected");
block.Result.Should().Contain("color: red");
}
public async Task Cancellation()
{
var cts = new CancellationTokenSource();
cts.Cancel();
var block = new RCodeBlock(0, string.Empty);
var evaluator = new RCodeEvaluator(_documentName, _shell.Services);
await evaluator.EvaluateBlockAsync(block, cts.Token);
block.Result.Should().Contain("canceled");
}
public async Task Output()
{
_interaction.When(s => s.RespondAsync(Arg.Any <string>())).Do(c => {
_session.Output += Raise.EventWith(new ROutputEventArgs(OutputType.Output, "output"));
});
var block = new RCodeBlock(0, string.Empty);
var evaluator = new RCodeEvaluator(_documentName, _shell.Services);
await evaluator.EvaluateBlockAsync(block, CancellationToken.None);
block.Result.Should().Contain("<code");
block.Result.Should().Contain("output");
block.Result.Should().NotContain("color: red");
}
public async Task Plot()
{
var cb = new RSessionCallback {
PlotResult = new byte[] { 1, 2, 3, 4 }
};
var block = new RCodeBlock(0, string.Empty);
var evaluator = new RCodeEvaluator(_documentName, _shell.Services);
evaluator.EvalSession.SessionCallback = cb;
await evaluator.EvaluateBlockAsync(block, CancellationToken.None);
block.Result.Should().Be("<img src='data:image/gif;base64, AQIDBA==' />");
cb.PlotResult.Should().BeNull();
}
