namespace R3.Tests.OperatorTests; public class AllTest { [Fact] public async Task Positive() { var range = Observable.Range(1, 10); var task = range.AllAsync(static x => x is > 0 and <= 10); (await task).Should().BeTrue(); } [Fact] public async Task Negative() { var range = Observable.Range(1, 10); var task = range.AllAsync(static x => x is > 0 and < 10); (await task).Should().BeFalse(); } }