Json Assertion - Error Assertion failure message: Value expected to match regexp

Question

Doing REST API Testing using Jmeter. when I am Using JSON Path Tester in HTTP Response and provided JSON Path Expression as $..name. Getting following matches

Done,
Won't Do,
Duplicate,
Cannot Reproduce

But when I place the same JSON expression and Result in JSON Assertion, getting the error:-

Assertion error: false
Assertion failure: true
Assertion failure message: Value expected to match regexp '"Done","Won't Do","Duplicate","Cannot Reproduce"', but it did not match: '["Done","Won't Do","Duplicate","Cannot Reproduce"]'

SAIR · Accepted Answer · 2019-09-04 10:39:33Z

0

To match multiple values

Extract all the matching values from JSON Response using JSON Extractor

Use JSR223 Assertion with following code:

int nameLength = Integer.parseInt(vars.get("Name_matchNr"));

String[] responseArray = new String[nameLength];
for (int i = 0; i < nameLength; i++) {
    responseArray[i] = vars.get("Name_"+(i+1));
}

boolean test1 = Arrays.asList(responseArray).contains("Done");
boolean test2 = Arrays.asList(responseArray).contains("Won't Do");
boolean test3 = Arrays.asList(responseArray).contains("Duplicate");
boolean test4 = Arrays.asList(responseArray).contains("Cannot Reproduce");

if (test1 == false) {
AssertionResult.setFailureMessage("Done not present in Response");
AssertionResult.setFailure(true);
}
if (test2 == false) {
AssertionResult.setFailureMessage("Won't Do not present in Response");
AssertionResult.setFailure(true);
}
if (test3 == false) {
AssertionResult.setFailureMessage("Duplicate not present in Response");
AssertionResult.setFailure(true);
}
if (test4 == false) {
AssertionResult.setFailureMessage("Cannot Reproduce not present in Response");
AssertionResult.setFailure(true);
}

To match single value

Use JSON Extractor to extract the values
Use JSON Assertion to Assert the values. In Expected Value section enter any single value : "Done/Won't Do/Duplicate/Cannot Reproduce"

edited Sep 4, 2019 at 10:39

answered Sep 4, 2019 at 7:24

SAIR

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1 Comment

Nishant Jain Over a year ago

Thanks. Yes That I am able to do - one single match. But trying to verify more than one.

Dmitri T · Accepted Answer · 2019-09-04 11:31:05Z

0

If this is really what you're trying to achieve, consider the following JSON Assertion configuration:

Just in case "Expected Value" textual representation:

["Done","Won't Do","Duplicate","Cannot Reproduce"]

However be informed that this form of assertion will be fragile and sensitive to any JSON changes, i.e. if the order of matches will not be the same - the assertion will fail. So I would rather recommend using one of the approaches described in The Easiest Way To Compare REST API Responses Using JMeter article.

answered Sep 4, 2019 at 11:31

Dmitri T

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