Using REST Assured library for testing SOAP webservices

Question

Is there a possibility of using REST Assured library for testing SOAP webservices? I have a bunch of Test Suites in SOAP UI and I need to check if there is possibility of using REST Assured. Can anyone suggest if this is possible? Many thanks for any comments.

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Answer 1

Yes it is possible. I have written this code and it is working form me:

Created a file SoapRequestFile.xml with the content:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/">
 <soapenv:Header/>
 <soapenv:Body>
 <tem:GetConversionRate>
 <!--Optional:-->
 <tem:CurrencyFrom>USD</tem:CurrencyFrom>
 <!--Optional:-->
 <tem:CurrencyTo>INR</tem:CurrencyTo>
 <tem:RateDate>2018年12月07日</tem:RateDate>
 </tem:GetConversionRate>
 </soapenv:Body>
</soapenv:Envelope>

Then here is code I have written in eclipse:

@Test
public void postMethod() throws Exception {
 FileInputStream fileInputStream = new FileInputStream(new File(".\\SOAPRequest\\SoapRequestFile.xml"));
 RestAssured.baseURI="http://currencyconverter.kowabunga.net";
 
 Response response=given()
 .header("Content-Type", "text/xml")
 .and()
 .body(IOUtils.toString(fileInputStream,"UTF-8"))
 .when()
 .post("/converter.asmx")
 .then()
 .statusCode(200)
 .and()
 .log().all()
 .extract().response();
 
 XmlPath jsXpath= new XmlPath(response.asString());//Converting string into xml path to assert
 String rate=jsXpath.getString("GetConversionRateResult");
 System.out.println("rate returned is: " + rate);
}

Answer 2

Yes, it is possible, however not necessarily easy.

SOAP Web service is (usually) receiving HTTP requests with XML in the body and sending back HTTP responses with XML in the body.

REST-assured can send HTTP requests with any content, including XML. It can also verify XML in responses with GPath.

Here's an example from REST-assured site:

Imagine that a POST request to http://localhost:8080/greetXML returns:

<greeting>
 <firstName>{params("firstName")}</firstName>
 <lastName>{params("lastName")}</lastName>
</greeting>

i.e. it sends back a greeting based on the firstName and lastName parameter sent in the request. You can easily perform and verify e.g. the firstName with REST assured:

given().
 parameters("firstName", "John", "lastName", "Doe").
when().
 post("/greetXML").
then().
 body("greeting.firstName", equalTo("John")).

The problem is that SOAP Requests and SOAP Responses are usually far more complex and you will need to understand WSDL descriptors yourself.

Answer 3

REST-assured does not have direct support for testing SOAP services, but it is possible by manually setting the SOAPAction and Content-Type headers and doing an HTTP POST etc. Then you can run XPath assertions on the response like you do for normal REST services in REST-assured.

I suggest you also evaluate Karate as it has built-in support for SOAP, and also makes XML manipulation a lot easier.