relish

REST API Testing with Cucumber and Javascript

Getting Started

The following software must be installed for development.

• Nodejs, 4.x+

Then, run the following command to install dependencies

$ npm install

Running the Tests

To run all tests, run the following command from the project directory.

$ npm test

To run a single feature file, run the following command from the project directory.

$ npm test features/myfeature.feature

To run a single test in a feature file, run the following command from the project directory. In this example "23" is the line number of the test in the file.

$ npm test features/myfeature.feature:23

Running the Examples

$ npm test examples

Writing Tests

You can use any text editor you would like to use. I recommend using VSCode or UltraEdit.

Place new feature files in the features folder. Features can and should be organized into folders.

Refer to the examples folder for full examples of what is possible with this framework.

Example

@baseUrl @baseUrl-examples
Scenario: Make a payment to a bill provider
    And The json request data
    """json
    {
        "amount": "133.0",
        "TransactionDate": "01-09-2016" 
    }
    """
    And the property "TransactionDate" is a date "3" days in the future
    When I make a POST request to "/payments/v1.0"
    Then the response status code should be "200"
    And the response property "data.results[0].status" should be "Pending"

Verify results

To verify the status code of a response, use the following

Then the response status code should be "404"

To verify a simple response containing a single word or value, use the following

Then the response should be "Completed"

To check a value in a JSON response, specify the path to the property. For example, lets say the following is supposed to return from the API.

{
    "employerName": "Microsoft"
}

Then use the following syntax

Then the response property "employerName" should be "Microsoft" 

A more complicated example:

{
    "result": {
        "data": {
            "employerName": "Microsoft"
        }
    }
}

Then use the following syntax

Then the response property "result.data.employerName" should be "Microsoft"

Also handles array syntax

{
    "result": {
        "data": [{
            "employerName": "Microsoft"
        }, {
            "employerName": "Stripe"   
        }]
    }
}

Then use the following syntax

Then the response property "result.data[1].employerName" should be "Stripe"

Using Tags to set the base url

Use tags to set the base url for requests. Place a "@baseUrl" tag on any Feature or Scenario and an additional tag to specify the base url to use.

In the example below, the full url is http://somemagic.com/api/explorer. Since we don't want to type this everytime, we can put the first half the url in the configuration file lib/config.js and then reference it as a tag as shown below.

@baseUrl @baseUrl-examples
Feature: Rest API Examples
    This is an example of a REST API spec

    Scenario: Example Scenario
    When I make a POST request to "/contributions/v1.0"

    .....more.....