public async Task StepOver() {
const string code =
@"f <- function(x) {
x + 1
}
x <- f(1)
print(x)";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp = await debugSession.CreateBreakpointAsync(sf, 4);
var bpHit = new BreakpointHitDetector(bp);
await sf.Source(_session);
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp.Location }
});
(await debugSession.StepOverAsync()).Should().Be(true);
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp.Location, +1 }
});
}
}
public async Task StepOver()
{
const string code =
@"f <- function(x) {
x + 1
}
x <- f(1)
print(x)";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp = await debugSession.CreateBreakpointAsync(sf, 4);
var bpHit = new BreakpointHitDetector(bp);
await sf.Source(_session);
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp.Location }
});
(await debugSession.StepOverAsync()).Should().Be(true);
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp.Location, +1 }
});
}
}
public async Task StepOutFromGlobal()
{
const string code =
@"x <- 1
y <- 2";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp1 = await debugSession.CreateBreakpointAsync(sf, 1);
var bp2 = await debugSession.CreateBreakpointAsync(sf, 2);
var bp1Hit = new BreakpointHitDetector(bp1);
await sf.Source(_session);
await bp1Hit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp1.Location }
});
(await debugSession.StepOutAsync()).Should().Be(false);
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp2.Location }
});
}
}
public async Task MultilinePromise()
{
const string code = @"
f <- function(p, d) {
force(d)
browser()
}
x <- quote({{{}}})
eval(substitute(f(P, x), list(P = x)))
";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var browseTask = EventTaskSources.DebugSession.Browse.Create(debugSession);
await sf.Source(_session);
await browseTask;
var stackFrames = (await debugSession.GetStackFramesAsync()).ToArray();
stackFrames.Should().NotBeEmpty();
var frame = (await stackFrames.Last().GetEnvironmentAsync()).As <DebugValueEvaluationResult>();
var children = (await frame.GetChildrenAsync(DebugEvaluationResultFields.ReprDeparse)).ToDictionary(er => er.Name);
var p = children.Should().ContainKey("p").WhichValue.As <DebugPromiseEvaluationResult>();
var d = children.Should().ContainKey("d").WhichValue.As <DebugValueEvaluationResult>();
p.Code.Should().Be(d.GetRepresentation().Deparse);
}
}
public async Task SetBreakpointWhileRunning()
{
const string code =
@"browser()
f <- function() {
NULL
}
while (TRUE) f()";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
await sf.Source(_session);
await debugSession.NextPromptShouldBeBrowseAsync();
await debugSession.ContinueAsync();
await Task.Delay(100);
var bp = await debugSession.CreateBreakpointAsync(sf, 3);
await debugSession.NextPromptShouldBeBrowseAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ bp.Location }
});
}
}
public async Task MultilinePromise() {
const string code = @"
f <- function(p, d) {
force(d)
browser()
}
x <- quote({{{}}})
eval(substitute(f(P, x), list(P = x)))
";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var browseTask = EventTaskSources.DebugSession.Browse.Create(debugSession);
await sf.Source(_session);
await browseTask;
var stackFrames = (await debugSession.GetStackFramesAsync()).ToArray();
stackFrames.Should().NotBeEmpty();
var frame = (await stackFrames.Last().GetEnvironmentAsync()).As<DebugValueEvaluationResult>();
var children = (await frame.GetChildrenAsync()).ToDictionary(er => er.Name);
var p = children.Should().ContainKey("p").WhichValue.As<DebugPromiseEvaluationResult>();
var d = children.Should().ContainKey("d").WhichValue.As<DebugValueEvaluationResult>();
p.Code.Should().Be(d.GetRepresentation(DebugValueRepresentationKind.Raw).Deparse);
}
}
public async Task MultilinePromise() {
const string code = @"
f <- function(p, d) {
force(d)
browser()
}
x <- quote({{{}}})
eval(substitute(f(P, x), list(P = x)))
";
using (var sessionProvider = new RSessionProvider()) {
var session = sessionProvider.GetOrCreate(Guid.NewGuid(), new RHostClientTestApp());
await session.StartHostAsync(new RHostStartupInfo {
Name = _testMethod.Name,
RBasePath = RUtilities.FindExistingRBasePath()
}, 50000);
using (var debugSession = new DebugSession(session)) {
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var paused = new TaskCompletionSource<bool>();
debugSession.Browse += delegate {
paused.SetResult(true);
};
await sf.Source(session);
await paused.Task;
var stackFrames = (await debugSession.GetStackFramesAsync()).Reverse().ToArray();
stackFrames.Should().NotBeEmpty();
var evalResult = await stackFrames[0].GetEnvironmentAsync();
evalResult.Should().BeAssignableTo<DebugValueEvaluationResult>();
var frame = (DebugValueEvaluationResult)evalResult;
var children = (await frame.GetChildrenAsync()).ToDictionary(er => er.Name);
children.Should().ContainKey("p");
children["p"].Should().BeAssignableTo<DebugPromiseEvaluationResult>();
var p = (DebugPromiseEvaluationResult)children["p"];
children.Should().ContainKey("d");
children["d"].Should().BeAssignableTo<DebugValueEvaluationResult>();
var d = (DebugValueEvaluationResult)children["d"];
p.Code.Should().Be(d.GetRepresentation(DebugValueRepresentationKind.Raw).Deparse);
}
}
await session.StopHostAsync();
}
}
public async Task BreakContinue()
{
const string code =
@"browser()
x <- 0
while (x >= 0) {
x <- x + 1
}
browser()";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await sf.Source(_session);
await debugSession.NextPromptShouldBeBrowseAsync();
await debugSession.ContinueAsync();
await Task.Delay(100);
await debugSession.BreakAsync();
await debugSession.NextPromptShouldBeBrowseAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, new MatchRange <int>(1, 3) }
});
await _session.EvaluateAsync("x <- -42", REvaluationKind.Mutating);
await debugSession.ContinueAsync();
await debugSession.NextPromptShouldBeBrowseAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 6 }
});
}
}
public async Task StepOutToFunction()
{
const string code =
@"f <- function() {
1
}
g <- function() {
f()
1
}
g()";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp = await debugSession.CreateBreakpointAsync(sf, 2);
var bpHit = new BreakpointHitDetector(bp);
await sf.Source(_session);
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 8, "g()" },
{ sf, 5, "f()" },
{ bp.Location },
});
(await debugSession.StepOutAsync()).Should().Be(true);
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 8, "g()" },
{ sf, 6, MatchAny <string> .Instance },
});
}
}
public async Task CallStack()
{
using (var debugSession = new DebugSession(_session)) {
const string code1 =
@"f <- function(n) {
if (n > 0) {
g(n - 1)
} else {
return()
}
}";
const string code2 =
@"g <- function(n) {
if (n > 0) {
f(n - 1)
} else {
return()
}
}";
using (var sf1 = new SourceFile(code1))
using (var sf2 = new SourceFile(code2)) {
await debugSession.EnableBreakpointsAsync(true);
await sf1.Source(_session);
await sf2.Source(_session);
var bp = await debugSession.CreateBreakpointAsync(sf1, 5);
var bpHit = new BreakpointHitDetector(bp);
using (var inter = await _session.BeginInteractionAsync()) {
await inter.RespondAsync("f(4)\n");
}
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ (string)null, null, "f(4)" },
{ sf1, 3, "g(n - 1)" },
{ sf2, 3, "f(n - 1)" },
{ sf1, 3, "g(n - 1)" },
{ sf2, 3, "f(n - 1)" },
{ sf1, 5, MatchAny <string> .Instance },
});
}
}
}
public async Task CallStack() {
using (var debugSession = new DebugSession(_session)) {
const string code1 =
@"f <- function(n) {
if (n > 0) {
g(n - 1)
} else {
return()
}
}";
const string code2 =
@"g <- function(n) {
if (n > 0) {
f(n - 1)
} else {
return()
}
}";
using (var sf1 = new SourceFile(code1))
using (var sf2 = new SourceFile(code2)) {
await debugSession.EnableBreakpointsAsync(true);
await sf1.Source(_session);
await sf2.Source(_session);
var bp = await debugSession.CreateBreakpointAsync(sf1, 5);
var bpHit = new BreakpointHitDetector(bp);
using (var inter = await _session.BeginInteractionAsync()) {
await inter.RespondAsync("f(4)\n");
}
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ (string)null, null, "f(4)" },
{ sf1, 3, "g(n - 1)" },
{ sf2, 3, "f(n - 1)" },
{ sf1, 3, "g(n - 1)" },
{ sf2, 3, "f(n - 1)" },
{ sf1, 5, MatchAny<string>.Instance },
});
}
}
}
public async Task RemoveBreakpointWhileRunning()
{
const string code =
@"browser()
f <- function() {
NULL
browser()
}
b <- FALSE;
while (TRUE) if (b) f()";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
await sf.Source(_session);
await debugSession.NextPromptShouldBeBrowseAsync();
var bp = await debugSession.CreateBreakpointAsync(sf, 3);
int hitCount = 0;
bp.BreakpointHit += delegate { ++hitCount; };
await debugSession.ContinueAsync();
await Task.Delay(100);
await bp.DeleteAsync();
await _session.EvaluateAsync("b <- TRUE", REvaluationKind.Mutating);
await debugSession.NextPromptShouldBeBrowseAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 4 }
});
hitCount.Should().Be(0);
}
}
private async Task PublishAsync(VariableSubscriptionToken token, IList <VariableSubscription> subscriptions)
{
if (subscriptions.Count == 0)
{
return;
}
Debug.Assert(_debugSession != null);
var stackFrames = await _debugSession.GetStackFramesAsync();
var stackFrame = stackFrames.FirstOrDefault(f => f.Index == token.FrameIndex);
if (stackFrame != null)
{
const DebugEvaluationResultFields fields = DebugEvaluationResultFields.Classes
| DebugEvaluationResultFields.Expression
| DebugEvaluationResultFields.TypeName
| (DebugEvaluationResultFields.Repr | DebugEvaluationResultFields.ReprStr)
| DebugEvaluationResultFields.Dim
| DebugEvaluationResultFields.Length;
DebugEvaluationResult evaluation = await stackFrame.EvaluateAsync(token.Expression, fields : fields);
foreach (var sub in subscriptions)
{
try {
var action = sub.GetExecuteAction();
if (action != null)
{
action(evaluation);
}
} catch (Exception e) {
Debug.Fail(e.ToString());
// swallow exception and continue
}
}
}
}
public async Task StepOutToGlobal() {
const string code =
@"f <- function(x) {
x + 1
}
x <- f(1)
print(x)";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp = await debugSession.CreateBreakpointAsync(sf, 2);
var bpHit = new BreakpointHitDetector(bp);
await sf.Source(_session);
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().BeAt(bp.Location, "f(1)");
(await debugSession.StepOutAsync()).Should().Be(true);
(await debugSession.GetStackFramesAsync()).Should().BeAt(sf, 5);
}
}
public async Task StepOutFromGlobal() {
const string code =
@"x <- 1
y <- 2";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp1 = await debugSession.CreateBreakpointAsync(sf, 1);
var bp2 = await debugSession.CreateBreakpointAsync(sf, 2);
var bp1Hit = new BreakpointHitDetector(bp1);
await sf.Source(_session);
await bp1Hit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().BeAt(bp1.Location);
(await debugSession.StepOutAsync()).Should().Be(false);
(await debugSession.GetStackFramesAsync()).Should().BeAt(bp2.Location);
}
}
public async Task StepOutToFunction() {
const string code =
@"f <- function() {
1
}
g <- function() {
f()
1
}
g()";
using (var debugSession = new DebugSession(_session))
using (var sf = new SourceFile(code)) {
await debugSession.EnableBreakpointsAsync(true);
var bp = await debugSession.CreateBreakpointAsync(sf, 2);
var bpHit = new BreakpointHitDetector(bp);
await sf.Source(_session);
await bpHit.ShouldBeHitAtNextPromptAsync();
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 8, "g()" },
{ sf, 5, "f()" },
{ bp.Location },
});
(await debugSession.StepOutAsync()).Should().Be(true);
(await debugSession.GetStackFramesAsync()).Should().HaveTail(new MatchDebugStackFrames {
{ sf, 8, "g()" },
{ sf, 6, MatchAny<string>.Instance },
});
}
}
