#Elasticsearch Inside

Many thanks to DJPorv who created the first version of this.

This is a fully embedded version of Elasticsearch for integration tests. When the instance is created both the jvm and elasticsearch itself is extracted to a temporary location (2-3 seconds in my tests) and started (5-6 seconds in my tests). Once disposed everything is removed again.

The instance will be started on a random port - full url available as Url property.

How to

To use elasticsearch in integration tests simply instantiate it - in these tests I'm using the excellent client Elasticsearch-NEST:

using (var elasticsearch = new Elasticsearch())
{
    ////Arrange
    var client = new ElasticClient(new ConnectionSettings(elasticsearch.Url));

    ////Act
    var result = client.Ping();

    ////Assert
    Assert.That(result.IsValid);
}

A few settings can be modified via the constructor. In this example I change the port and add a custom commandline argument for the elasticsearch startup:

using (var elasticsearch = new Elasticsearch(c => c
    .Port(444)
    .AddArgument("-Des.script.engine.groovy.file.aggs=on")))
{
    ////Arrange
    var client = new ElasticClient(new ConnectionSettings(elasticsearch.Url));

    ////Act
    var result = client.Ping();

    ////Assert
    Assert.That(result.IsValid);
    Assert.That(elasticsearch.Url.Port, Is.EqualTo(444));
}

By default nothing is being logged, logging to trace can be enabled with EnableLogging() and can be customized to log to somewhere else with the LogTo() statement:

Console output is by default being written to Trace.Write but can be customized by providing a custom logging-lambda:

using (new Elasticsearch(c => c.EnableLogging().LogTo(Console.WriteLine)))
{
                
}

Install

Simply add the Nuget package:

PM> Install-Package elasticsearch-inside

Requirements

You'll need .NET Framework 4.5.1 or later to use the precompiled binaries.

License

Elasticsearch Inside is under the MIT license.