Dapper/tests/Dapper.Tests/Providers/FirebirdTests.cs

using FirebirdSql.Data.FirebirdClient;
using System.Data;
using System.Data.Common;
using System.Linq;
using Xunit;

namespace Dapper.Tests.Providers
{
    /// <summary>
    /// If Docker Desktop is installed, run the following command to start a container suitable for the tests.
    /// <code>
    /// docker run -d -p 3050:3050 --name Dapper.Tests.Firebird -e FIREBIRD_DATABASE=database -e ISC_PASSWORD=masterkey jacobalberty/firebird
    /// </code>
    /// </summary>
    public class FirebirdProvider : DatabaseProvider
    {
        public override DbProviderFactory Factory => FirebirdClientFactory.Instance;
        public override string GetConnectionString() => "initial catalog=localhost:database;user id=SYSDBA;password=masterkey";
    }
    public class FirebirdTests : TestBase<FirebirdProvider>
    {
        private FbConnection GetOpenFirebirdConnection() => (FbConnection)Provider.GetOpenConnection();

        [Fact(Skip = "Bug in Firebird; a PR to fix it has been submitted")]
        public void Issue178_Firebird()
        {
            using var connection = GetOpenFirebirdConnection();

            const string sql = "select count(*) from Issue178";
            try { connection.Execute("drop table Issue178"); }
            catch { /* don't care */ }
            connection.Execute("create table Issue178(id int not null)");
            connection.Execute("insert into Issue178(id) values(42)");
            // raw ADO.net
            using (var sqlCmd = new FbCommand(sql, connection))
            using (var reader1 = sqlCmd.ExecuteReader())
            {
                Assert.True(reader1.Read());
                Assert.Equal(1, reader1.GetInt32(0));
                Assert.False(reader1.Read());
                Assert.False(reader1.NextResult());
            }

            // dapper
            using (var reader2 = connection.ExecuteReader(sql))
            {
                Assert.True(reader2.Read());
                Assert.Equal(1, reader2.GetInt32(0));
                Assert.False(reader2.Read());
                Assert.False(reader2.NextResult());
            }

            var count = connection.Query<int>(sql).Single();
            Assert.Equal(1, count);
        }
    }
}