karma-json-fixtures-preprocessor

karma-json-fixtures-preprocessor
================================


##### Preprocessor for converting .json files into .js files and making them accessible from karma test environment

Installation

``json
{
"devDependencies": {
"karma": "~0.12.1",
"karma-json-fixtures-preprocessor": "0.0.4"
}
}
`

Configuration

`js
// karma.conf.js
module.exports = function(config) {
config.set({
preprocessors: {
'./fixtures/*/.json': ['json_fixtures']
},

files: [
'./fixtures/*/.json'
],
jsonFixturesPreprocessor: {
// strip this from the file path \ fixture name
stripPrefix: 'test/fixtures',
// strip this to the file path \ fixture name
prependPrefix: 'mock/',
// change the global fixtures variable name
variableName: '__mocks__',
// camelize fixture filenames (e.g 'fixtures/aa-bb_cc.json' becames __fixtures__['fixtures/aaBbCc'])
camelizeFilenames: true,
// transform the filename
transformPath: function(path) {
return path + '.js';
}
}
});
};
`

How it works

Preprocessor requires .json files and converts them into .js files by storing json data as javascript objects under __fixtures__ namespace.

the following file:
./fixtures/test.json
`json
{
"a": "test"
}
`
will be accessible in your test environment:
`js
var fixture = window.__fixtures__['fixtures/test'];
fixture["a"] // => 'test'
``