// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System.CommandLine;
using System.CommandLine.Parsing;
using System.Diagnostics;
using System.Text.Json;
using System.Text.Json.Serialization;
using AzureMcp.Core.Models.Command;
using AzureMcp.Postgres.Commands.Database;
using AzureMcp.Postgres.Services;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using NSubstitute;
using Xunit;
namespace AzureMcp.Postgres.UnitTests.Database;
[DebuggerStepThrough]
public class DatabaseQueryCommandTests
{
private readonly IServiceProvider _serviceProvider;
private readonly IPostgresService _postgresService;
private readonly ILogger<DatabaseQueryCommand> _logger;
private readonly ITestOutputHelper _output;
public DatabaseQueryCommandTests(ITestOutputHelper output)
{
_logger = Substitute.For<ILogger<DatabaseQueryCommand>>();
_postgresService = Substitute.For<IPostgresService>();
_output = output;
var collection = new ServiceCollection();
collection.AddSingleton(_postgresService);
_serviceProvider = collection.BuildServiceProvider();
}
[Fact]
public async Task ExecuteAsync_ReturnsQueryResults_WhenQueryIsValid()
{
var expectedResults = new List<string> { "result1", "result2" };
_postgresService.ExecuteQueryAsync("sub123", "rg1", "user1", "server1", "db123", "SELECT * FROM test;")
.Returns(expectedResults);
var command = new DatabaseQueryCommand(_logger);
var args = command.GetCommand().Parse(["--subscription", "sub123", "--resource-group", "rg1", "--user", "user1", "--server", "server1", "--database", "db123", "--query", "SELECT * FROM test;"]);
var context = new CommandContext(_serviceProvider);
var response = await command.ExecuteAsync(context, args);
Assert.NotNull(response);
Assert.Equal(200, response.Status);
Assert.NotNull(response.Results);
var json = JsonSerializer.Serialize(response.Results);
var result = JsonSerializer.Deserialize<DatabaseQueryResult>(json);
Assert.NotNull(result);
Assert.Equal(expectedResults, result.QueryResult);
}
[Fact]
public async Task ExecuteAsync_ReturnsEmpty_WhenQueryFails()
{
var expectedResults = new List<string>();
_postgresService.ExecuteQueryAsync("sub123", "rg1", "user1", "server1", "db123", "SELECT * FROM test;")
.Returns(expectedResults);
var command = new DatabaseQueryCommand(_logger);
var parser = new Parser(command.GetCommand());
var args = parser.Parse(["--subscription", "sub123", "--resource-group", "rg1", "--user", "user1", "--server", "server1", "--database", "db123", "--query", "SELECT * FROM test;"]);
var context = new CommandContext(_serviceProvider);
var response = await command.ExecuteAsync(context, args);
Assert.NotNull(response);
Assert.Equal(200, response.Status);
Assert.Null(response.Results);
}
[Theory]
[InlineData("--subscription")]
[InlineData("--resource-group")]
[InlineData("--user")]
[InlineData("--server")]
[InlineData("--database")]
[InlineData("--query")]
public async Task ExecuteAsync_ReturnsError_WhenParameterIsMissing(string missingParameter)
{
var command = new DatabaseQueryCommand(_logger);
var args = command.GetCommand().Parse(new string[]
{
missingParameter == "--subscription" ? "" : "--subscription", "sub123",
missingParameter == "--resource-group" ? "" : "--resource-group", "rg1",
missingParameter == "--user" ? "" : "--user", "user1",
missingParameter == "--server" ? "" : "--server", "server123",
missingParameter == "--database" ? "" : "--database", "db123",
missingParameter == "--query" ? "" : "--query", "SELECT * FROM test;"
});
var context = new CommandContext(_serviceProvider);
var response = await command.ExecuteAsync(context, args);
Assert.NotNull(response);
Assert.Equal(400, response.Status);
Assert.Equal($"Missing Required options: {missingParameter}", response.Message);
}
private class DatabaseQueryResult
{
[JsonPropertyName("QueryResult")]
public List<string> QueryResult { get; set; } = new List<string>();
}
}
