diff -r 95dfb40ff3d2 -r dd6b3adde73b server/src/tests/Libraries/Sparql/SparqlClientTest.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/server/src/tests/Libraries/Sparql/SparqlClientTest.php	Wed Apr 13 13:38:40 2016 +0200
@@ -0,0 +1,224 @@
+<?php
+
+use CorpusParole\Libraries\Sparql\SparqlClient;
+use CorpusParole\Libraries\CorpusParoleException;
+use CorpusParole\Models\Document;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Psr7\Response;
+use GuzzleHttp\Middleware;
+
+use Mockery as m;
+
+class SparqlClientTest extends TestCase {
+
+    const TEST_DOC_ADD = <<<EOT
+<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "dialogue"^^<http://www.language-archives.org/OLAC/1.1/discourse-type> .
+<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "drama"^^<http://www.language-archives.org/OLAC/1.1/discourse-type> .
+EOT;
+
+    const TEST_DOC_DELETE = <<<EOT
+<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "dialogue"^^<http://www.language-archives.org/OLAC/1.1/discourse-type> .
+EOT;
+
+
+    private $container;
+    private $sparqlClients;
+    private $transactionUrl;
+
+    private $responsesArray;
+
+    function __construct(string $name = null) {
+        parent::__construct($name);
+    }
+
+    private function getSparqlClient($responses, &$container, $sparqlClient) {
+        $mock = new MockHandler($responses);
+        $handler = HandlerStack::create($mock);
+        $history = Middleware::history($container);
+        $handler->push($history);
+        $httpClient = new Client(['handler' => $handler, 'http_errors' => false]);
+
+        return new SparqlClient($httpClient, $sparqlClient);
+    }
+
+    public function setUp() {
+        parent::setUp();
+        $this->sesameRepository = config('corpusparole.sesame_repository');
+        $this->transactionUrl = config('corpusparole.sesame_query_url').'/transactions/64a5937f-c112-d014-a044-f0123b93';
+
+        $this->addGraph = new EasyRdf\Graph("http://purl.org/poi/crdo.vjf.cnrs.fr/crdo-ALA_608", SparqlClientTest::TEST_DOC_ADD);
+        $this->deleteGraph = new EasyRdf\Graph("http://purl.org/poi/crdo.vjf.cnrs.fr/crdo-ALA_608", SparqlClientTest::TEST_DOC_DELETE);
+
+    }
+
+    public function tearDown() {
+        m::close();
+        parent::tearDown();
+    }
+
+    public function testCreateTransaction() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+
+        $this->assertEquals($this->transactionUrl, $documentRepository->getCurrentTransactionUrl(), 'Must have correct transaction url');
+    }
+
+    public function testCreateTransactionHistory() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+
+        $this->assertCount(1, $container, 'One request');
+        $req = $container[0]['request'];
+        $this->assertEquals("$this->sesameRepository/transactions?isolation-level=http%3A%2F%2Fwww.openrdf.org%2Fschema%2Fsesame%23SNAPSHOT_READ", (string)$req->getUri(), "url must be ok");
+        $this->assertEquals('POST', $container[0]['request']->getMethod(), "methos is POST");
+    }
+
+    public function testRollbackTransaction() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+            new Response(204)
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+        $documentRepository->rollback();
+
+        $this->assertCount(2, $container, '2 requests');
+
+        $this->assertNull($documentRepository->getCurrentTransactionUrl(), "Current Transaction url must be null");
+
+        $req = $container[1]['request'];
+
+        $this->assertEquals($this->transactionUrl, (string)$req->getUri(), "uri must be the transaction url");
+        $this->assertEquals('DELETE', $req->getMethod(), "Method must be DELETE");
+
+    }
+
+    public function testCommitTransaction() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+            new Response(200)
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+        $documentRepository->commit();
+
+
+        $this->assertCount(2, $container, '2 requests');
+
+        $this->assertNull($documentRepository->getCurrentTransactionUrl(), "Current Transaction url must be null");
+
+        $req = $container[1]['request'];
+
+        $this->assertEquals($this->transactionUrl."?action=COMMIT", (string)$req->getUri(), "uri must be the transaction url");
+        $this->assertEquals('PUT', $req->getMethod(), "Method must be PUT");
+
+    }
+
+    /**
+     * @expectedException CorpusParole\Libraries\CorpusParoleException
+     */
+    public function testCommitTransactionFail() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+            new Response(404, [], "Not found")
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+        $documentRepository->commit();
+
+    }
+
+
+    public function testAdd() {
+
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+            new Response(204)
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+        $documentRepository->add($this->addGraph);
+
+        $this->assertCount(2, $container, '2 requests');
+
+        $this->assertNotNull($documentRepository->getCurrentTransactionUrl(), "Current Transaction url must be not null");
+
+        $req = $container[1]['request'];
+
+        $this->assertEquals($this->transactionUrl."?action=UPDATE", (string)$req->getUri(), "uri must be the transaction url");
+        $this->assertEquals('PUT', $req->getMethod(), "Method must be PUT");
+        $this->assertEquals(['application/sparql-update; charset=utf-8'], $req->getHeader('Content-type'), "content type must be form urlencoded");
+
+        $body = (string)$req->getBody();
+
+        $this->assertContains('INSERT DATA {', $body, 'update parameter must contain INSERT');
+        $this->assertContains('GRAPH <'.$this->addGraph->getUri().'> {', $body, 'update parameter must contain GRAPH id');
+        $this->assertContains('<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "dialogue"^^<http://www.language-archives.org/OLAC/1.1/discourse-type>', $body, 'update parameter must contain dialogue');
+        $this->assertContains('<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "drama"^^<http://www.language-archives.org/OLAC/1.1/discourse-type> .', $body, 'update parameter must contain drama');
+    }
+
+    public function testDelete() {
+        $responses = [
+            new Response(201, ['Location' => "$this->transactionUrl"]),
+            new Response(204)
+        ];
+        $container = [];
+        $sparqlClientMock = m::mock('EasyRdf\Sparql\Client');
+
+        $documentRepository = $this->getSparqlClient($responses, $container, $sparqlClientMock);
+
+        $documentRepository->startTransaction();
+        $documentRepository->delete($this->deleteGraph);
+
+        $this->assertCount(2, $container, '2 requests');
+
+        $this->assertNotNull($documentRepository->getCurrentTransactionUrl(), "Current Transaction url must be not null");
+
+        $req = $container[1]['request'];
+
+        $this->assertEquals($this->transactionUrl."?action=UPDATE", (string)$req->getUri(), "uri must be the transaction url");
+        $this->assertEquals('PUT', $req->getMethod(), "Method must be PUT");
+        $this->assertEquals(['application/sparql-update; charset=utf-8'], $req->getHeader('Content-type'), "content type must be form urlencoded");
+
+        $body = (string)$req->getBody();
+
+        $this->assertContains('DELETE DATA {', $body, 'update parameter must contain DELETE');
+        $this->assertContains('GRAPH <'.$this->addGraph->getUri().'> {', $body, 'update parameter must contain GRAPH id');
+        $this->assertContains('<http://cocoon.huma-num.fr/data/ala/ALA_608_22km.wav> <http://purl.org/dc/elements/1.1/type> "dialogue"^^<http://www.language-archives.org/OLAC/1.1/discourse-type>', $body, 'update parameter must contain GRAPH id');
+
+    }
+
+}