Unable to Reuse Step with Scenario Outline Examples

[MummanaSubramanya]

I have a situation where Im unable to reuse a step when using scenario outline. Below is an example

Example.feature

Scenario Outline:
Given I have Students list in database
When Student list is filtered with <last_name>
And Student list is filtered with <first_name>
And Student list is filtered with <student_age>
Then Student count is more than zero

Examples:
| last_name| first_name| student_age|
| xyz_ln | xyz_fn. | 20 |
| xyz_ln | fgh_fn. | 21 |

Stepdef.py

@when("Student list is filtered with <filter_value>")
def filter_student_list(context, filter_value):
printf(f"logic for filtering the list with: {filter_value}" )

Error:

When I execute the the above example. It throws stepdef not found error. Reason is in stepdef.py I have used variable <filter_value> as a generic name. But pytest expects that in feature file we need to use the same variable name. Can you please help me in resolving this?

[elchupanebrej]

from pytest_bdd.parsers import parse
from pytest_bdd.steps import when

@when(parse("Student list is filtered with {filter_value}"))
def filter_student_list(filter_value):
    print(f"logic for filtering the list with: {filter_value}")

[elchupanebrej]

We could reduce count of such questions after implementation of #467

[MummanaSubramanya]

I have updated the code as you mentioned and it still fails with same error:

Step definition not found: When "Student list is filtered with <last_name>"

Stepdef.py:

from pytest_bdd.parsers import parse
from pytest_bdd.steps import when

@when(parse("Student list is filtered with {filter_value}"))
def filter_student_list(context, filter_value):
    print(f"logic for filtering the list with: {filter_value}")

Scenario.feature:

Scenario Outline: Sample Example
Given I have Students list in database
When Student list is filtered with <last_name>
And Student list is filtered with <first_name>
And Student list is filtered with <student_age>
Then Student count is more than zero

Examples:
| last_name| first_name| student_age|
| xyz_ln | xyz_fn. | 20 |
| xyz_ln | fgh_fn. | 21 |

[elchupanebrej]

Could you please provide info about:

• pytest_bdd version
• project layout

step definitions must be placed at conftest.py or in test modules.

[ktzoulas]

Try rename the step definition file to 'test_scenario.py' and import the 'scanerios' method to define the relative location of your feature file or just move the method in your 'conftest.py'.

[MummanaSubramanya]

I have a very simple setup

under tests folder, I have [ Myfeature.feature, test_feature.py ]
under steps folder, I have. [ conftest.py, given.py, when.py, then.py ]

[MummanaSubramanya]

Okay I was able to run the test but it just literally prints the params which I set in feature file its not printing the values which I set in examples. Please see the screenshot attached

feature file:

    Scenario Outline: Filter the student list
        Given I have student list
        And student list filtered with <first_name>
        And student list filtered with <last_name>
        Examples:
            | first_name    | last_name |
            | test_fn1      | test_ln1  |
            | test_fn2      | test_ln2  |

stepdefs:

@given(parsers.parse('I have student list'))
def student_list():
    print("Given student list")
    
@given(parsers.parse('student list filtered with {filter_value}'))
def filtering_the_student(filter_value):
    print("filtering with value: " + filter_value)

[ktzoulas]

Nice job! The parameters of each example are printed in the Test column, for example tests/features/test_scenarios.py::test_scenarios[test_fn1-test_ln1]. Not sure how you can override them, but you could try the https://github.com/wswebcreation/multiple-cucumber-html-reporter repo which accepts the JSON file generated using the --cucumber-json parameter and overrides their values.

[MummanaSubramanya]

I was expecting that pytest should convert that <first_name> to my example values which is test_fn1 and test_fn2 in stepdef too.

Basically my expected result should look like this:

Given student list
filtering with value: test_fn1
filtering with value: test_ln1

Also, I dnt want to go with third party library as I have some restrictions.

[MummanaSubramanya]

Can we say its a bug on pytest side?

[elchupanebrej]

Could you please confirm that you use pytest>4

[MummanaSubramanya]

Could you please confirm that you use pytest>4

please find the versions:

pytest==6.2.3
pytest-bdd==4.0.2

[elchupanebrej]

Combining of rendered steps and step parameters has been released in pytest_bdd==5.0 . The main discussion could be found in #293

[MummanaSubramanya]

Combining of rendered steps and step parameters has been released in pytest_bdd==5.0 . The main discussion could be found in #293

Thank you for replying, I already went through that discussion earlier and seems like its a missing a case what Im expecting here. Also, may be you execute my example scenario in your machine and let me know if its working for you. :)

[elchupanebrej]

I took the latest master and pytest==7.1.1:

[MummanaSubramanya]

I took the latest master and pytest==7.1.1:

Will check with latest version and revert back to you

[MummanaSubramanya]

I confirm that its working in my end. Well let me test few more scenarios and will close if I dnt face any issues