namespace AnthropicClient.Tests.Unit.Models; public class MessageBatchRequestItemTests : SerializationTest { [Fact] public void Constructor_WhenCalled_ItShouldReturnInstanceWithPropertiesSet() { var customId = "custom_id"; var messageRequest = new MessageRequest(); var result = new MessageBatchRequestItem(customId, messageRequest); result.Should().BeOfType(); result.CustomId.Should().Be(customId); result.Params.Should().BeSameAs(messageRequest); } [Theory] [InlineData("")] [InlineData(" ")] [InlineData(null)] public void Constructor_WhenCalledAndCustomIdIsInvalid_ItShouldThrowException(string? customId) { var act = () => new MessageBatchRequestItem(customId!, new MessageRequest()); act.Should().Throw(); } [Fact] public void Constructor_WhenCalledAndMessageRequestIsNull_ItShouldThrowException() { var act = () => new MessageBatchRequestItem("custom_id", null!); act.Should().Throw(); } }