diff --git a/tests/BeSimple/SoapClient/SoapClientTest.php b/tests/BeSimple/SoapClient/SoapClientTest.php
index cc4652f..ce0c0e9 100644
--- a/tests/BeSimple/SoapClient/SoapClientTest.php
+++ b/tests/BeSimple/SoapClient/SoapClientTest.php
@@ -3,8 +3,6 @@
 namespace BeSimple\SoapClient;
 
 use BeSimple\SoapBundle\Soap\SoapAttachment;
-use BeSimple\SoapClient\Curl\CurlOptions;
-use BeSimple\SoapClient\SoapOptions\SoapClientOptions;
 use BeSimple\SoapCommon\ClassMap;
 use BeSimple\SoapCommon\SoapOptions\SoapOptions;
 use BeSimple\SoapCommon\SoapOptionsBuilder;
@@ -18,11 +16,11 @@ class SoapClientTest extends PHPUnit_Framework_TestCase
 {
     const CACHE_DIR = __DIR__ . '/../../../cache';
     const FIXTURES_DIR = __DIR__ . '/../../Fixtures';
+    const TEST_HTTP_URL = 'http://localhost:9000/tests';
     const TEST_ENDPOINT_UK = 'http://www.webservicex.net/uklocation.asmx';
     const TEST_REMOTE_WSDL_UK = 'http://www.webservicex.net/uklocation.asmx?WSDL';
     const TEST_REMOTE_ENDPOINT_NOT_WORKING = 'http://www.nosuchserverexist.tld/doesnotexist.endpoint';
     const TEST_REMOTE_WSDL_NOT_WORKING = 'http://www.nosuchserverexist.tld/doesnotexist.endpoint?wsdl';
-    const TEST_REMOTE_WSDL_SWA = 'https://demo2815480.mockable.io/soap/testGenerator?WSDL';
 
     public function testSoapCall()
     {
@@ -231,14 +229,16 @@ class SoapClientTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @see This test needs a working SWA endpoint. Examine Tests/Mock directory for details
+     * @see This test needs to start a mock server first
      */
     public function testSoapCallSwaWithAttachmentsOnResponse()
     {
+        $localWebServerProcess = popen('php -S localhost:9000 > /dev/null 2>&1 &', 'r');
+
         $soapClient = $this->getSoapBuilder()->buildWithSoapHeader(
             SoapClientOptionsBuilder::createWithTracing(),
             SoapOptionsBuilder::createSwaWithClassMapV11(
-                self::TEST_REMOTE_WSDL_SWA,
+                self::TEST_HTTP_URL.'/SwaEndpoint.php?wsdl',
                 new ClassMap([
                     'GenerateTestRequest' => GenerateTestRequest::class,
                 ]),
@@ -265,6 +265,8 @@ class SoapClientTest extends PHPUnit_Framework_TestCase
 
         file_put_contents(self::CACHE_DIR . '/testSoapCallSwaWithAttachmentsOnResponse.xml', $soapResponse->getContent());
         file_put_contents(self::CACHE_DIR . '/testSoapCallSwaWithAttachmentsOnResponse.txt', $firstAttachment->getContent());
+
+        pclose($localWebServerProcess);
     }
 
     public function removeOneTimeData($string)
diff --git a/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.response.message b/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.response.message
new file mode 100644
index 0000000..04253fb
--- /dev/null
+++ b/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.response.message
@@ -0,0 +1,17 @@
+
+--Part_13_58e3bc35f3743.58e3bc35f376f
+Content-Type: application/soap+xml; charset=utf-8
+Content-Transfer-Encoding: 8bit
+Content-ID: <part-424dbe68-e2da-450f-9a82-cc3e82742503@response.info>
+
+<?xml version="1.0" encoding="UTF-8"?>
+<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope" xmlns:ns1="http://schema.testcase"><env:Body xmlns:rpc="http://www.w3.org/2003/05/soap-rpc"><ns1:generateTestResponse><rpc:result>generateTestReturn</rpc:result><generateTestReturn><fileName>dummy-attachment.txt</fileName></generateTestReturn></ns1:generateTestResponse></env:Body></env:Envelope>
+
+--Part_13_58e3bc35f3743.58e3bc35f376f
+Content-Type: text/plain; charset=utf-8
+Content-Transfer-Encoding: binary
+Content-ID: <dummy-attachment.txt>
+Content-Location: dummy-attachment.txt
+
+Hello world!
+--Part_13_58e3bc35f3743.58e3bc35f376f--
\ No newline at end of file
diff --git a/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.wsdl b/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.wsdl
new file mode 100644
index 0000000..76b1e32
--- /dev/null
+++ b/tests/Fixtures/Message/Response/soapCallWithSwaAttachmentsOnResponse.wsdl
@@ -0,0 +1,61 @@
+<?xml version="1.0"?>
+<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://schema.testcase" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://schema.testcase">
+    <wsdl:types>
+        <xsd:schema targetNamespace="http://schema.testcase">
+            <xsd:complexType name="SoapHeaderEntity">
+                <xsd:sequence>
+                    <xsd:element name="user" type="xsd:string" minOccurs="1">
+                        <xsd:annotation>
+                            <xsd:documentation>User name for authorization</xsd:documentation>
+                        </xsd:annotation>
+                    </xsd:element>
+                </xsd:sequence>
+            </xsd:complexType>
+            <xsd:element name="SoapHeader" type="tns:SoapHeaderEntity"/>
+            <xsd:complexType name="GenerateTestRequest">
+                <xsd:sequence>
+                    <xsd:element name="salutation" type="xsd:string" minOccurs="0"/>
+                </xsd:sequence>
+            </xsd:complexType>
+            <xsd:complexType name="GenerateTestResponse">
+                <xsd:sequence>
+                    <xsd:element name="fileName" type="xsd:string" minOccurs="1"/>
+                </xsd:sequence>
+            </xsd:complexType>
+        </xsd:schema>
+    </wsdl:types>
+    <message name="SoapHeader">
+        <part name="SoapHeader" element="tns:SoapHeader"/>
+    </message>
+    <message name="GenerateTestRequest">
+        <part name="request" type="tns:GenerateTestRequest"/>
+    </message>
+    <message name="GenerateTestResponse">
+        <part name="generateTestReturn" type="tns:GenerateTestResponse"/>
+    </message>
+    <wsdl:portType name="TestGeneratorServiceSoapPortType">
+        <wsdl:operation name="generateTest">
+            <wsdl:input message="tns:GenerateTestRequest"/>
+            <wsdl:output message="tns:GenerateTestResponse"/>
+        </wsdl:operation>
+    </wsdl:portType>
+    <binding name="TestGeneratorServiceSoapBinding" type="tns:TestGeneratorServiceSoapPortType">
+        <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
+        <wsdl:operation name="generateTest">
+            <soap:operation soapAction="TestGeneratorService.generateTest" style="rpc"/>
+            <wsdl:input>
+                <soap:header use="literal" message="tns:SoapHeader" part="SoapHeader" namespace="http://schema.testcase"/>
+                <soap:body use="literal" part="request" namespace="http://schema.testcase"/>
+            </wsdl:input>
+            <wsdl:output>
+                <soap:body use="literal" namespace="http://schema.testcase"/>
+            </wsdl:output>
+        </wsdl:operation>
+    </binding>
+    <wsdl:service name="TestGeneratorService">
+        <xsd:documentation>WSDL file for TestGeneratorService</xsd:documentation>
+        <port name="TestGeneratorServiceSoapPortType" binding="tns:TestGeneratorServiceSoapBinding">
+            <soap:address location="http://localhost:8000/tests/SwaEndpoint.php"/>
+        </port>
+    </wsdl:service>
+</wsdl:definitions>
diff --git a/tests/SwaEndpoint.php b/tests/SwaEndpoint.php
new file mode 100644
index 0000000..1b61b17
--- /dev/null
+++ b/tests/SwaEndpoint.php
@@ -0,0 +1,13 @@
+<?php
+
+const FIXTURES_DIR = __DIR__.'/Fixtures';
+const CACHE_DIR = __DIR__.'/../cache';
+
+if (isset($_GET['wsdl'])) {
+    header('Content-type: text/xml');
+    echo file_get_contents(FIXTURES_DIR.'/Message/Response/soapCallWithSwaAttachmentsOnResponse.wsdl');
+    exit;
+}
+
+header('Content-type: text/xml');
+echo file_get_contents(FIXTURES_DIR.'/Message/Response/soapCallWithSwaAttachmentsOnResponse.response.message');