public async Task Timeout_throws_a_LibPlcTagException() { // Arrange var nativeTag = new Mock <INativeTag>(); nativeTag // The initial creation of the tag object returns a status, so we return pending .Setup(m => m.plc_tag_create(It.IsAny <string>(), 0)) .Returns((int)Status.Pending); nativeTag // Subsequent calls to determine the tag status should still return pending .Setup(m => m.plc_tag_status(It.IsAny <int>())) .Returns((int)Status.Pending); var tag = new NativeTagWrapper(nativeTag.Object) { Timeout = TimeSpan.FromMilliseconds(500) }; // Act // Assert var ex = await Assert.ThrowsAsync <LibPlcTagException>(async() => { await tag.InitializeAsync(); }); Assert.Equal(Status.ErrorTimeout.ToString(), ex.Message); }
public async Task Timeout_returns_pending_but_eventually_ok() { // Arrange var nativeTag = new Mock <INativeTag>(); nativeTag // The initial creation of the tag object returns a status, so we return pending .Setup(m => m.plc_tag_create(It.IsAny <string>(), 0)) .Returns((int)Status.Pending); nativeTag .SetupSequence(m => m.plc_tag_status(It.IsAny <int>())) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Pending) .Returns((int)Status.Ok); var tag = new NativeTagWrapper(nativeTag.Object) { Timeout = TimeSpan.FromMilliseconds(500) }; // Act await tag.InitializeAsync(); // Assert Assert.Equal(Status.Ok, tag.GetStatus()); }
public async Task Cancelled_cancellation_token_throws_a_TaskCanceledException() { // Arrange var nativeTag = new Mock <INativeTag>(); nativeTag // The initial creation of the tag object returns a status, so we return pending .Setup(m => m.plc_tag_create(It.IsAny <string>(), 0)) .Returns((int)Status.Pending); nativeTag // Subsequent calls to determine the tag status should still return pending .Setup(m => m.plc_tag_status(It.IsAny <int>())) .Returns((int)Status.Pending); var tag = new NativeTagWrapper(nativeTag.Object); var cts = new CancellationTokenSource(); // Act cts.CancelAfter(500); // Assert await Assert.ThrowsAsync <TaskCanceledException>(async() => { await tag.InitializeAsync(cts.Token); }); }