JSON Reports
Gwen can generete JSON reports enabling you to feed evaulation results into other Gherkin report formatters or your own custom one.
Generate reports
Launch Gwen with the -f json option to generate JSON reports when executing your features.
- Yarn
 - npm
 - pnpm
 
Execute features in the gwen/features/todo folder and generate JSON reports only.
yarn gwen -b -f json gwen/features/todo
Execute features in the gwen/features/todo folder and generate HTML and JSON reports.
yarn gwen -b -f html,json gwen/features/todo
Execute features in the gwen/features/todo folder and generate JSON reports only.
npm run gwen -- -b -f json gwen/features/todo
Execute features in the gwen/features/todo folder and generate HTML and JSON reports.
npm run gwen -- -b -f html,json gwen/features/todo
Execute features in the gwen/features/todo folder and generate JSON reports only.
pnpm gwen -b -f json gwen/features/todo
Execute features in the gwen/features/todo folder and generate HTML and JSON reports.
pnpm gwen -b -f html,json gwen/features/todo
Output
- Reports will be generated in the 
gwen/output/reportsdirectory as per the defaultgwen.launch.options.reportsetting- The JSON report files will be generated at 
gwen/output/reports/json/*.json. - The HTML report will be generated at 
gwen/output/reports/index.html. - If you want reports generated in a different directory, you can either:
- Amend the above setting to change the default
 - Or include the 
-r|--reportCLI option and specify a directory on every launch 
 
 - The JSON report files will be generated at 
 
Sample output
File: json/features-todo-Todo.feature.json
[
  {
    "uri": "features\/todo\/Todo.feature",
    "keyword": "Feature",
    "id": "features-todo-Todo.feature;add-todo-items",
    "line": 3,
    "name": "features\/todo\/Todo.feature: Add todo items",
    "description": "",
    "tags": [
      {
        "name": "@Sample",
        "line": 2,
      }
    ],
    "elements": [
      {
        "keyword": "Scenario",
        "id": "scenario;create-todo-list;1",
        "line": 5,
        "name": "Create todo list",
        "description": "",
        "type": "scenario",
        "steps": [
          {
            "keyword": "Given ",
            "name": "a new todo list",
            "line": 6,
            "match": {
                "location": "features\/todo\/Todo.meta:6"
            },
            "result": {
              "status": "passed",
              "duration": 6151153459
            }
          },
          {
            "keyword": "When ",
            "name": "the following items are added",
            "line": 7,
            "rows": [
              {
                "cells": [
                  "Item"
                ],
                "line": 8,
                "id": "scenario;create-todo-list;1;1;8"
              },
              {
                "cells": [
                  "Get the milk"
                ],
                "line": 9,
                "id": "scenario;create-todo-list;1;2;9"
              },
              {
                "cells": [
                  "Walk the dog"
                ],
                "line": 10,
                "id": "scenario;create-todo-list;1;3;10"
              }
            ],
            "result": {
              "status": "passed",
              "duration": 18004904227
            }
          },
          {
            "keyword": "Then ",
            "name": "the list will contain 2 items",
            "line": 11,
            "match": {
                "location": "features\/todo\/Todo.meta:24"
            },
            "result": {
              "status": "passed",
              "duration": 201269901
            }
          }
        ]
      }
    ]
  }
]