[Cucumber-JVM]: Case insensitive gherkin not working

[Anukul Singhal]

Hi,

I want to implement case insensitivity in my gherkin for my project such that the following works:

Scenario: test case insensitive gherkin
  Given perform get request "http://testurl:3000/topics"
  Given perform GET request "http://testurl:3000/topics"
  Given perform GET REQUEST "http://testurl:3000/topics"

I wrote the following step definition (for the above gherkin steps) with the following regex which removed the undefined step references, and it seemed like I found the solution:

@Given("(?i)^perform get request \"([^\"]*)\"$")
public void performGetRequest(String url) throws Throwable {
    //Implementation
}

Basically, I prefixed (?i) regex prior to regex start which resolved all the gherkin steps.  However, when I executed the test, I got the following error:

java.util.NoSuchElementException
	at io.cucumber.cucumberexpressions.TreeRegexp$IntRange.next(TreeRegexp.java:99)
	at io.cucumber.cucumberexpressions.TreeRegexp$IntRange.next(TreeRegexp.java:82)
	at io.cucumber.cucumberexpressions.GroupBuilder.build(GroupBuilder.java:18)
	at io.cucumber.cucumberexpressions.GroupBuilder.build(GroupBuilder.java:21)
	at io.cucumber.cucumberexpressions.TreeRegexp.match(TreeRegexp.java:75)
	at io.cucumber.cucumberexpressions.Argument.build(Argument.java:12)
	at io.cucumber.cucumberexpressions.RegularExpression.match(RegularExpression.java:54)
	at io.cucumber.stepexpression.StepExpression.match(StepExpression.java:22)
	at io.cucumber.stepexpression.ExpressionArgumentMatcher.argumentsFrom(ExpressionArgumentMatcher.java:21)
	at cucumber.runtime.java.JavaStepDefinition.matchedArguments(JavaStepDefinition.java:58)
	at cucumber.runner.Glue.stepDefinitionMatches(Glue.java:104)
	at cucumber.runner.Glue.stepDefinitionMatch(Glue.java:82)
	at cucumber.runner.Runner.addTestStepsForPickleSteps(Runner.java:64)
	at cucumber.runner.Runner.createTestCaseForPickle(Runner.java:54)
	at cucumber.runner.Runner.runPickle(Runner.java:39)
	at cucumber.api.testng.TestNGCucumberRunner.runScenario(TestNGCucumberRunner.java:68)
	at com.sabre.cucumber.runner.TestRunner.scenario(TestRunner.java:121)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)
	at org.testng.internal.TestMethodWithDataProviderMethodWorker.call(TestMethodWithDataProviderMethodWorker.java:71)
	at org.testng.internal.TestMethodWithDataProviderMethodWorker.call(TestMethodWithDataProviderMethodWorker.java:14)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

I am using the following maven dependencies - cucumber-java, cucumber-testng - version 4.2.0 and java 8.  I believe cucumber-expression is not liking something about my regex.

Can somebody suggest how to achieve case insensitive gherkin using cucumber-expression or regular-expression?  Let me know if any other information is needed.

Thanks,
Anukul

[aslak hellesoy]

Hi Anukul,

This is a bug. I've filed a bug report here: https://github.com/cucumber/cucumber/issues/856

Cheers,

Aslak

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[Anukul Singhal]

Thanks Aslak!

On Sunday, January 12, 2020 at 2:50:36 PM UTC-6, Aslak Hellesøy wrote:

Hi Anukul,

This is a bug. I've filed a bug report here: https://github.com/cucumber/cucumber/issues/856

Cheers,

Aslak

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