public void ReturnConnection_ExceedPoolSize_GetConnectionShouldBlockAndReturnPreviousConnection()
{
// Arrange
var pool = new SapConnectionPool(
ConnectionParameters,
poolSize: 1,
connectionFactory: _ => Mock.Of <ISapConnection>());
ISapConnection connection1 = pool.GetConnection();
// Act
Task.Run(async() =>
{
await Task.Delay(150);
pool.ReturnConnection(connection1);
});
var sw = new Stopwatch();
sw.Start();
ISapConnection connection2 = pool.GetConnection();
sw.Stop();
// Assert
sw.ElapsedMilliseconds.Should().BeGreaterThan(100);
connection2.Should().NotBeNull();
connection2.Should().Be(connection1);
connection1.Dispose();
connection2.Dispose();
pool.Dispose();
}
public void Dispose_ShouldDisposeIdleConnections()
{
// Arrange
var connectionMock = new Mock <ISapConnection>();
var pool = new SapConnectionPool(ConnectionParameters, connectionFactory: _ => connectionMock.Object);
ISapConnection connection1 = pool.GetConnection();
ISapConnection connection2 = pool.GetConnection();
pool.ReturnConnection(connection1);
pool.ReturnConnection(connection2);
// Act
pool.Dispose();
// Assert
connectionMock.Verify(x => x.Dispose(), Times.Exactly(2));
}
public void GetConnection_AfterReturnConnection_ShouldReturnSameConnection()
{
// Arrange
var pool = new SapConnectionPool(
ConnectionParameters,
poolSize: 3,
connectionFactory: _ => Mock.Of <ISapConnection>());
// Act
ISapConnection connection1 = pool.GetConnection();
pool.ReturnConnection(connection1);
ISapConnection connection2 = pool.GetConnection();
// Assert
connection1.Should().NotBeNull();
connection2.Should().Be(connection1);
}
public void Wait_ShouldDisposeIdleConnections()
{
// Arrange
var connectionMock = new Mock <ISapConnection>();
var pool = new SapConnectionPool(
ConnectionParameters,
connectionIdleTimeout: TimeSpan.FromMilliseconds(150),
idleDetectionInterval: TimeSpan.FromMilliseconds(25),
connectionFactory: _ => connectionMock.Object);
pool.ReturnConnection(pool.GetConnection());
// Assert
connectionMock.Verify(x => x.Dispose(), Times.Never);
// Act
Thread.Sleep(200);
// Assert
connectionMock.Verify(x => x.Dispose(), Times.Once);
}