public async Task EnsuresNonNullArguments()
{
var client = new ObservableIssuesLabelsClient(Substitute.For <IGitHubClient>());
Assert.Throws <ArgumentNullException>(() => client.AddToIssue(null, "name", 42, labels));
Assert.Throws <ArgumentNullException>(() => client.AddToIssue("owner", null, 42, labels));
Assert.Throws <ArgumentNullException>(() => client.AddToIssue("owner", "name", 42, null));
Assert.Throws <ArgumentException>(() => client.AddToIssue("", "name", 42, labels));
Assert.Throws <ArgumentException>(() => client.AddToIssue("owner", "", 42, labels));
}
public void PostsToCorrectUrlWithRepositoryId()
{
var gitHubClient = Substitute.For <IGitHubClient>();
var client = new ObservableIssuesLabelsClient(gitHubClient);
client.AddToIssue(1, 42, labels);
gitHubClient.Issue.Labels.Received().AddToIssue(1, 42, labels);
}