// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System.CommandLine.Parsing;
using System.Text.Json;
using Azure.Messaging.ServiceBus;
using AzureMcp.Core.Options;
using AzureMcp.ServiceBus.Commands.Topic;
using AzureMcp.ServiceBus.Models;
using AzureMcp.ServiceBus.Services;
using AzureMcp.Core.Models.Command;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using NSubstitute;
using NSubstitute.ExceptionExtensions;
using Xunit;
using static AzureMcp.ServiceBus.Commands.Topic.TopicDetailsCommand;
namespace AzureMcp.ServiceBus.UnitTests.Topic;
public class TopicDetailsCommandTests
{
private readonly IServiceProvider _serviceProvider;
private readonly IServiceBusService _serviceBusService;
private readonly ILogger<TopicDetailsCommand> _logger;
private readonly TopicDetailsCommand _command;
private readonly CommandContext _context;
private readonly Parser _parser;
// Test constants
private const string SubscriptionId = "sub123";
private const string TopicName = "testTopic";
private const string NamespaceName = "test.servicebus.windows.net";
public TopicDetailsCommandTests()
{
_serviceBusService = Substitute.For<IServiceBusService>();
_logger = Substitute.For<ILogger<TopicDetailsCommand>>();
var collection = new ServiceCollection().AddSingleton(_serviceBusService);
_serviceProvider = collection.BuildServiceProvider();
_command = new(_logger);
_context = new(_serviceProvider);
_parser = new(_command.GetCommand());
}
[Fact]
public async Task ExecuteAsync_ReturnsTopicDetails()
{
// Arrange
var expectedDetails = new TopicDetails
{
Name = TopicName,
Status = "Active",
DefaultMessageTimeToLive = TimeSpan.FromDays(14),
MaxMessageSizeInKilobytes = 1024,
SizeInBytes = 2048,
SubscriptionCount = 3,
EnablePartitioning = true,
MaxSizeInMegabytes = 1024,
ScheduledMessageCount = 0
};
_serviceBusService.GetTopicDetails(
Arg.Is(NamespaceName),
Arg.Is(TopicName),
Arg.Any<string>(),
Arg.Any<RetryPolicyOptions>()
).Returns(expectedDetails);
var args = _parser.Parse(["--subscription", SubscriptionId, "--namespace", NamespaceName, "--topic", TopicName]);
// Act
var response = await _command.ExecuteAsync(_context, args);
// Assert
Assert.NotNull(response);
Assert.NotNull(response.Results);
// write a json converter that extends from EntityStatus
var options = new JsonSerializerOptions
{
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
};
var json = JsonSerializer.Serialize(response.Results, options);
var result = JsonSerializer.Deserialize<TopicDetailsCommandResult>(json, options);
Assert.NotNull(result);
Assert.Equal(TopicName, result.TopicDetails.Name);
Assert.Equal(expectedDetails.Status, result.TopicDetails.Status);
Assert.Equal(expectedDetails.SubscriptionCount, result.TopicDetails.SubscriptionCount);
}
[Fact]
public async Task ExecuteAsync_HandlesTopicNotFound()
{
// Arrange
var serviceBusException = new ServiceBusException("Topic not found", ServiceBusFailureReason.MessagingEntityNotFound);
_serviceBusService.GetTopicDetails(
Arg.Is(NamespaceName),
Arg.Is(TopicName),
Arg.Any<string>(),
Arg.Any<RetryPolicyOptions>()
).ThrowsAsync(serviceBusException);
var args = _parser.Parse(["--subscription", SubscriptionId, "--namespace", NamespaceName, "--topic", TopicName]);
// Act
var response = await _command.ExecuteAsync(_context, args);
// Assert
Assert.NotNull(response);
Assert.Equal(404, response.Status);
}
[Fact]
public async Task ExecuteAsync_HandlesGenericException()
{
// Arrange
var expectedError = "Test error";
_serviceBusService.GetTopicDetails(
Arg.Is(NamespaceName),
Arg.Is(TopicName),
Arg.Any<string>(),
Arg.Any<RetryPolicyOptions>()
).ThrowsAsync(new Exception(expectedError));
var args = _parser.Parse(["--subscription", SubscriptionId, "--namespace", NamespaceName, "--topic", TopicName]);
// Act
var response = await _command.ExecuteAsync(_context, args);
// Assert
Assert.NotNull(response);
Assert.Equal(500, response.Status);
Assert.StartsWith(expectedError, response.Message);
}
[Theory]
[InlineData("--subscription sub123 --namespace test.servicebus.windows.net --topic testTopic", true)]
[InlineData("--namespace test.servicebus.windows.net --topic testTopic", false)] // Missing subscription
[InlineData("--subscription sub123 --topic testTopic", false)] // Missing namespace
[InlineData("--subscription sub123 --namespace test.servicebus.windows.net", false)] // Missing topic
[InlineData("", false)] // Missing all required options
public async Task ExecuteAsync_ValidatesRequiredParameters(string args, bool shouldSucceed)
{
// Arrange
if (shouldSucceed)
{
var expectedDetails = new TopicDetails
{
Name = TopicName,
Status = "Active",
SubscriptionCount = 2
};
_serviceBusService.GetTopicDetails(
Arg.Any<string>(),
Arg.Any<string>(),
Arg.Any<string>(),
Arg.Any<RetryPolicyOptions>())
.Returns(expectedDetails);
}
var parseResult = _parser.Parse(args.Split(' ', StringSplitOptions.RemoveEmptyEntries));
// Act
var response = await _command.ExecuteAsync(_context, parseResult);
// Assert
if (shouldSucceed)
{
Assert.Equal(200, response.Status);
Assert.Equal("Success", response.Message);
}
else
{
Assert.Equal(400, response.Status);
Assert.Contains("required", response.Message.ToLower());
}
}
}
