public async Task EnsuresNonNullArguments()
{
var client = new ObservableIssuesLabelsClient(Substitute.For<IGitHubClient>());
Assert.Throws<ArgumentNullException>(() => client.RemoveFromIssue(null, "name", 42, "label"));
Assert.Throws<ArgumentNullException>(() => client.RemoveFromIssue("owner", null, 42, "label"));
Assert.Throws<ArgumentNullException>(() => client.RemoveFromIssue("owner", "name", 42, null));
Assert.Throws<ArgumentNullException>(() => client.RemoveFromIssue(1, 42, null));
Assert.Throws<ArgumentException>(() => client.RemoveFromIssue("", "name", 42, "label"));
Assert.Throws<ArgumentException>(() => client.RemoveFromIssue("owner", "", 42, "label"));
Assert.Throws<ArgumentException>(() => client.RemoveFromIssue("owner", "name", 42, ""));
Assert.Throws<ArgumentException>(() => client.RemoveFromIssue(1, 42, ""));
}
public void DeleteCorrectUrlWithRepositoryId()
{
var connection = Substitute.For<IConnection>();
var gitHubClient = new GitHubClient(connection);
var client = new ObservableIssuesLabelsClient(gitHubClient);
client.RemoveFromIssue(1, 42, "label");
connection.Received().Delete(Arg.Is<Uri>(u => u.ToString() == "repositories/1/issues/42/labels/label"));
}