wishthis/node_modules/gulp-json-editor/test/byFunction.js

var json   = require('../');
var gulp   = require('gulp');

it('should modify property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    obj.version = '2.0.0';
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "name": "test object",\n' +
      '  "version": "2.0.0",\n' +
      '  "nested": {\n' +
      '    "name": "nested object",\n' +
      '    "version": "1.0.0"\n' +
      '  },\n' +
      '  "authors": ["tom"]\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should add property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    obj.description = 'this is test';
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "name": "test object",\n' +
      '  "version": "1.0.0",\n' +
      '  "nested": {\n' +
      '    "name": "nested object",\n' +
      '    "version": "1.0.0"\n' +
      '  },\n' +
      '  "authors": ["tom"],\n' +
      '  "description": "this is test"\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should remove property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    delete obj.name;
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "version": "1.0.0",\n' +
      '  "nested": {\n' +
      '    "name": "nested object",\n' +
      '    "version": "1.0.0"\n' +
      '  },\n' +
      '  "authors": ["tom"]\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should modify nested property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    obj.nested.version = '2.0.1';
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "name": "test object",\n' +
      '  "version": "1.0.0",\n' +
      '  "nested": {\n' +
      '    "name": "nested object",\n' +
      '    "version": "2.0.1"\n' +
      '  },\n' +
      '  "authors": ["tom"]\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should add nested property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    obj.nested.description = 'this is test for nested';
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "name": "test object",\n' +
      '  "version": "1.0.0",\n' +
      '  "nested": {\n' +
      '    "name": "nested object",\n' +
      '    "version": "1.0.0",\n' +
      '    "description": "this is test for nested"\n' +
      '  },\n' +
      '  "authors": ["tom"]\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should remove nested property of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    delete obj.nested.name;
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "name": "test object",\n' +
      '  "version": "1.0.0",\n' +
      '  "nested": {\n' +
      '    "version": "1.0.0"\n' +
      '  },\n' +
      '  "authors": ["tom"]\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});


it('should multiple properties of JSON object (by function editor)', function(done) {

  var stream = gulp.src('test/test.json').pipe(json(function(obj) {
    obj.version = '2.0.0';
    obj.description = 'this is test';
    delete obj.name;
    obj.nested.version = '2.0.1';
    obj.nested.description = 'this is test for nested';
    delete obj.nested.name;
    return obj;
  }));

  stream.on('data', function(file) {
    var expected =
      '{\n' +
      '  "version": "2.0.0",\n' +
      '  "nested": {\n' +
      '    "version": "2.0.1",\n' +
      '    "description": "this is test for nested"\n' +
      '  },\n' +
      '  "authors": ["tom"],\n' +
      '  "description": "this is test"\n' +
      '}';
    file.contents.toString().should.eql(expected);
    done();
  });
});