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#region License
// The PostgreSQL License
//
// Copyright (C) 2017 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using JetBrains.Annotations;
using NUnit.Framework;
using NUnit.Framework.Interfaces;
namespace Npgsql.Tests
{
public static class TestUtil
{
public static bool IsOnBuildServer
=> Environment.GetEnvironmentVariable("CI") != null;
/// <summary>
/// Calls Assert.Ignore() unless we're on the build server, in which case calls
/// Assert.Fail(). We don't to miss any regressions just because something was misconfigured
/// at the build server and caused a test to be inconclusive.
/// </summary>
public static void IgnoreExceptOnBuildServer(string message)
{
if (IsOnBuildServer)
Assert.Fail(message);
else
Assert.Ignore(message);
}
public static void IgnoreExceptOnBuildServer(string message, params object[] args)
=> IgnoreExceptOnBuildServer(string.Format(message, args));
public static void MinimumPgVersion(NpgsqlConnection conn, string minVersion, string ignoreText=null)
{
var min = new Version(minVersion);
if (conn.PostgreSqlVersion < min)
{
var msg = $"Postgresql backend version {conn.PostgreSqlVersion} is less than the required {min}";
if (ignoreText != null)
msg += ": " + ignoreText;
Assert.Ignore(msg);
}
}
public static string GetUniqueIdentifier(string prefix)
=> prefix + Interlocked.Increment(ref _counter);
static int _counter;
/// <summary>
/// Utility to generate a bytea literal in Postgresql hex format
/// See http://www.postgresql.org/docs/current/static/datatype-binary.html
/// </summary>
internal static string EncodeByteaHex(ICollection<byte> buf)
{
var hex = new StringBuilder(@"E'\\x", buf.Count * 2 + 3);
foreach (var b in buf)
hex.Append($"{b:x2}");
hex.Append("'");
return hex.ToString();
}
internal static IDisposable SetEnvironmentVariable(string name, string value)
{
var resetter = new EnvironmentVariableResetter(name, Environment.GetEnvironmentVariable(name));
Environment.SetEnvironmentVariable(name, value);
return resetter;
}
class EnvironmentVariableResetter : IDisposable
{
readonly string _name, _value;
internal EnvironmentVariableResetter(string name, string value)
{
_name = name;
_value = value;
}
public void Dispose()
{
Environment.SetEnvironmentVariable(_name, _value);
}
}
}
public static class NpgsqlConnectionExtensions
{
public static int ExecuteNonQuery(this NpgsqlConnection conn, string sql, NpgsqlTransaction tx = null)
{
var cmd = tx == null ? new NpgsqlCommand(sql, conn) : new NpgsqlCommand(sql, conn, tx);
using (cmd)
return cmd.ExecuteNonQuery();
}
[CanBeNull]
public static object ExecuteScalar(this NpgsqlConnection conn, string sql, NpgsqlTransaction tx = null)
{
var cmd = tx == null ? new NpgsqlCommand(sql, conn) : new NpgsqlCommand(sql, conn, tx);
using (cmd)
return cmd.ExecuteScalar();
}
public static async Task<int> ExecuteNonQueryAsync(this NpgsqlConnection conn, string sql, NpgsqlTransaction tx = null)
{
var cmd = tx == null ? new NpgsqlCommand(sql, conn) : new NpgsqlCommand(sql, conn, tx);
using (cmd)
return await cmd.ExecuteNonQueryAsync();
}
[CanBeNull]
public static async Task<object> ExecuteScalarAsync(this NpgsqlConnection conn, string sql, NpgsqlTransaction tx = null)
{
var cmd = tx == null ? new NpgsqlCommand(sql, conn) : new NpgsqlCommand(sql, conn, tx);
using (cmd)
return await cmd.ExecuteScalarAsync();
}
}
public static class CommandBehaviorExtensions
{
public static bool IsSequential(this CommandBehavior behavior)
=> (behavior & CommandBehavior.SequentialAccess) != 0;
}
/// <summary>
/// Semantic attribute that points to an issue linked with this test (e.g. this
/// test reproduces the issue)
/// </summary>
[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
public class IssueLink : Attribute
{
public string LinkAddress { get; private set; }
public IssueLink(string linkAddress)
{
LinkAddress = linkAddress;
}
}
/// <summary>
/// Causes the test to be ignored on mono
/// </summary>
[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class | AttributeTargets.Assembly, AllowMultiple = false)]
public class MonoIgnore : Attribute, ITestAction
{
readonly string _ignoreText;
public MonoIgnore(string ignoreText = null) { _ignoreText = ignoreText; }
public void BeforeTest([NotNull] ITest test)
{
if (Type.GetType("Mono.Runtime") != null)
{
var msg = "Ignored on mono";
if (_ignoreText != null)
msg += ": " + _ignoreText;
Assert.Ignore(msg);
}
}
public void AfterTest([NotNull] ITest test) { }
public ActionTargets Targets => ActionTargets.Test;
}
/// <summary>
/// Causes the test to be ignored on Linux
/// </summary>
[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class | AttributeTargets.Assembly, AllowMultiple = false)]
public class LinuxIgnore : Attribute, ITestAction
{
readonly string _ignoreText;
public LinuxIgnore(string ignoreText = null) { _ignoreText = ignoreText; }
public void BeforeTest([NotNull] ITest test)
{
var osEnvVar = Environment.GetEnvironmentVariable("OS");
if (osEnvVar == null || osEnvVar != "Windows_NT")
{
var msg = "Ignored on Linux";
if (_ignoreText != null)
msg += ": " + _ignoreText;
Assert.Ignore(msg);
}
}
public void AfterTest([NotNull] ITest test) { }
public ActionTargets Targets => ActionTargets.Test;
}
/// <summary>
/// Causes the test to be ignored on Windows
/// </summary>
[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class | AttributeTargets.Assembly, AllowMultiple = false)]
public class WindowsIgnore : Attribute, ITestAction
{
readonly string _ignoreText;
public WindowsIgnore(string ignoreText = null) { _ignoreText = ignoreText; }
public void BeforeTest([NotNull] ITest test)
{
var osEnvVar = Environment.GetEnvironmentVariable("OS");
if (osEnvVar == "Windows_NT")
{
var msg = "Ignored on Windows";
if (_ignoreText != null)
msg += ": " + _ignoreText;
Assert.Ignore(msg);
}
}
public void AfterTest([NotNull] ITest test) { }
public ActionTargets Targets => ActionTargets.Test;
}
public enum PrepareOrNot
{
Prepared,
NotPrepared
}
#if !(NET45 || NET451)
// When using netcoreapp, we use NUnit's portable library which doesn't include TimeoutAttribute
// (probably because it can't enforce it). So we define it here to allow us to compile, once there's
// proper support for netcoreapp this should be removed.
[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method, Inherited = false)]
class TimeoutAttribute : Attribute
{
public TimeoutAttribute(int timeout) {}
}
#endif
}