JSON validation using REST assured

Question

i'm trying to validate Json Objects. I use https://code.google.com/p/rest-assured/wiki/Downloads?tm=2,

import static com.jayway.restassured.module.jsv.JsonSchemaValidator.matchesJsonSchemaInClasspath;
import static org.hamcrest.MatcherAssert.assertThat;

import org.junit.Test;

public class testClass {


    @Test public void
    validates_schema_in_classpath() {
        // Given
        String JsonString = "{\"isSuccess\":false}";// Greeting response

        // Then
        assertThat(JsonString, matchesJsonSchemaInClasspath("greeter-schema.json"));
    }
}

greeter-schema.json:http://cs606926.vk.me/v606926718/15603/0Kauo1bTDi8.jpg

I have OK result everytime even if JsonString is not equal this "{\"isSuccess\":false}".

For example I get OK result when JsonString="{\"isSuccess\":false},{\"isFalse\":true}", or "{\"isSuccess\":false},testetstets"

word of advice: paste the schema as code in the question instead of linking to external resource — soulcheck
– soulcheck, Commented Apr 21, 2014 at 16:27
I have no reputation to do this - schema contains a lot of urls — user3510509
– user3510509, Commented Apr 21, 2014 at 16:52

Zach David · Accepted Answer · 2016-01-27 22:32:26Z

3

Schema validation using RestAssured only asserts that the value is there. To assert against a certain value, you have to denote exactly what name (isSuccess in this case) you are looking for to get the value. Then validate against this derived value:

assertThat().body("isSuccess", equalTo(false));

This functionality is actually what RestAssured was built to do, and there is plenty of info on it here: https://github.com/jayway/rest-assured/wiki/Usage#json-using-jsonpath

answered Jan 27, 2016 at 22:32

Zach David

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Johan · Accepted Answer · 2014-04-22 05:38:18Z

1

Your JSON schema only checks that the attribute "isSuccess" is present, not that it must be either true or false. You can do this with json schema as well but I don't know it by heart. You can probably just google for it check out http://json-schema.org.

answered Apr 22, 2014 at 5:38

Johan

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2 Comments

user3510509 Over a year ago

I know how I can chek type of attribute, but I need to chek content of JSON object. I mean, I need to check that in JSONobject there aren't additional attributes, and i've it done with "additionalProperties": false. But know I have the next problem: how to check that attribute is present in array? "required":true dont hepls. My test OK every time even if array is empty

Johan Over a year ago

Why don't you look at the web page at the site that I provided to you? The documentation is available at json-schema.org/latest/json-schema-validation.html. See section 5.3 for info on arrays.

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