bower/test/renderers/JsonRenderer.js

var expect = require('chai').expect;
var helpers = require('../helpers');
var multiline = require('multiline').stripIndent;

var JsonRenderer = helpers.require('lib/renderers/JsonRenderer');

var jsonRendererWithPrompt = function (stubs) {
    return helpers.require('lib/renderers/JsonRenderer', {
        promptly: stubs
    });
};

// When cloning on Windows it's possible carrets are used
var normalize = function (string) {
    return string.replace(/\r\n|\r/g, '\n');
};

describe('JsonRenderer', function () {

    it('logs simple message to stderr', function () {
        return helpers.capture(function () {
            var renderer = new JsonRenderer();
            renderer.log({
                id: 'foobar',
                message: 'hello world'
            });

            renderer.end();
        }).spread(function (stdout, stderr) {
            expect(stderr).to.eq(normalize(multiline(function () {/*
                [{
                  "id": "foobar",
                  "message": "hello world"
                }]

            */})));
        });
    });

    it('logs error message to stderr', function () {
        return helpers.capture(function () {
            var renderer = new JsonRenderer();
            renderer.error({
                id: 'foobar',
                message: 'hello world',
                data: {
                    foo: 'bar'
                },
                stacktrace: [
                    './foo:23',
                    './bar:23'
                ]
            });
        }).spread(function (stdout, stderr) {
            expect(stderr).to.eq(normalize(multiline(function () {/*
                [{
                  "id": "error",
                  "data": {
                    "foo": "bar"
                  },
                  "stacktrace": "N/A",
                  "level": "error",
                  "message": "hello world"
                }]

            */})));
        });
    });

    it('prompts for answer', function () {
        var JsonRenderer = jsonRendererWithPrompt({
            prompt: function (name, opts, callback) {
                callback(null, 'something2');
            }
        });

        var renderer = new JsonRenderer();

        return helpers.capture(function () {
            return renderer.prompt([
                {
                    type: 'input',
                    name: 'field',
                    message: 'Please enter something',
                    default: 'something'
                }
            ]).then(function (response) {
                expect(response.field).to.eq('something2');
                renderer.end();
            });
        }).spread(function (stdout, stderr) {
            expect(stderr).to.eq(normalize(multiline(function () {/*
                [{
                  "type": "input",
                  "name": "field",
                  "message": "Please enter something",
                  "default": "something",
                  "level": "prompt"
                }]

            */})));
        });
    });
});