public async Task UpdatesTreeDiff()
{
using var signal = new SemaphoreSlim(0, 1);
var shaGenerator = new PseudoShaGenerator();
var addedFile = new TreeEntryChangesMock(ChangeKind.Added,
true, Mode.NonExecutableFile, new ObjectId(shaGenerator.Generate()), "some/p.ath",
false, Mode.Nonexistent, null, null);
var firstCommit = CommitMock.GenerateCommit(shaGenerator, null, 0);
var secondCommit = CommitMock.GenerateCommit(shaGenerator, firstCommit.Yield(), 1);
var compareOptions = new CompareOptions();
var diff = new DiffMock(null, (oldTree, newTree, CompareOptions)
=> (oldTree, newTree, CompareOptions) == (firstCommit.Tree, secondCommit.Tree, compareOptions)
? new TreeChangesMock(((TreeEntryChanges)addedFile).Yield().ToList())
: throw new Exception("Compare was called with wrong arguments."));
var oldCommit = Observable.Return(new Variant <Commit, DiffTargets>(firstCommit));
var newCommit = Observable.Return(new Variant <Commit, DiffTargets>(secondCommit));
var head = new BranchMock(true, false, null, secondCommit, "HEAD");
var compareOptionsObs = Observable.Return(compareOptions);
var repo = new RepositoryMock(new CommitMock[] { firstCommit, secondCommit }, new BranchCollectionMock(head.Yield().ToList()), null, diff);
var repoObservable = Observable.Return(repo).Concat(Observable.Never <IRepositoryWrapper>());
var input = Observable
.CombineLatest(oldCommit, newCommit, compareOptionsObs, repoObservable, (o, n, c, r) => new DiffViewModelInput(r, o, n, c));
Variant <List <TreeEntryChanges>, Unexpected>?value = null;
var vm = new DiffViewModel(new TestSchedulers(), input);
using var _ = vm.TreeDiff
.Subscribe(val =>
{
value = val;
if (val.Is <List <TreeEntryChanges> >())
{
signal.Release();
}
});
if (value is null)
{
value = vm.TreeDiff.Value;
}
if (value is null)
{
throw new Exception("TreeDiff was not set.");
}
if (!value.Is <List <TreeEntryChanges> >())
{
await signal.WaitAsync(TimeSpan.FromSeconds(10));
}
Assert.IsTrue(value.Is <List <TreeEntryChanges> >());
}
