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node-red/test/red/runtime/util_spec.js

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/**
* Copyright 2014, 2015 IBM Corp.
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var should = require("should");
var util = require("../../../red/runtime/util");
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describe("red/util", function() {
describe('generateId', function() {
it('generates an id', function() {
var id = util.generateId();
var id2 = util.generateId();
id.should.not.eql(id2);
});
});
describe('compareObjects', function() {
it('unequal arrays are unequal', function() {
util.compareObjects(["a"],"a").should.equal(false);
});
it('unequal key lengths are unequal', function() {
util.compareObjects({"a":1},{"a":1,"b":1}).should.equal(false);
});
});
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describe('ensureString', function() {
it('strings are preserved', function() {
util.ensureString('string').should.equal('string');
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});
it('Buffer is converted', function() {
var s = util.ensureString(new Buffer('foo'));
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s.should.equal('foo');
(typeof s).should.equal('string');
});
it('Object is converted to JSON', function() {
var s = util.ensureString({foo: "bar"});
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(typeof s).should.equal('string');
should.deepEqual(JSON.parse(s), {foo:"bar"});
});
it('stringifies other things', function() {
var s = util.ensureString(123);
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(typeof s).should.equal('string');
s.should.equal('123');
});
});
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describe('ensureBuffer', function() {
it('Buffers are preserved', function() {
var b = new Buffer('');
util.ensureBuffer(b).should.equal(b);
});
it('string is converted', function() {
var b = util.ensureBuffer('foo');
var expected = new Buffer('foo');
for (var i = 0; i < expected.length; i++) {
b[i].should.equal(expected[i]);
}
Buffer.isBuffer(b).should.equal(true);
});
it('Object is converted to JSON', function() {
var obj = {foo: "bar"}
var b = util.ensureBuffer(obj);
Buffer.isBuffer(b).should.equal(true);
should.deepEqual(JSON.parse(b), obj);
});
it('stringifies other things', function() {
var b = util.ensureBuffer(123);
Buffer.isBuffer(b).should.equal(true);
var expected = new Buffer('123');
for (var i = 0; i < expected.length; i++) {
b[i].should.equal(expected[i]);
}
});
});
describe('cloneMessage', function() {
it('clones a simple message', function() {
var msg = {string:"hi",array:[1,2,3],object:{a:1,subobject:{b:2}}};
var cloned = util.cloneMessage(msg);
cloned.should.eql(msg);
cloned.should.not.equal(msg);
cloned.array.should.not.equal(msg.string);
cloned.object.should.not.equal(msg.object);
cloned.object.subobject.should.not.equal(msg.object.subobject);
cloned.should.not.have.property("req");
cloned.should.not.have.property("res");
});
it('does not clone http req/res properties', function() {
var msg = {req:{a:1},res:{b:2}};
var cloned = util.cloneMessage(msg);
cloned.should.eql(msg);
cloned.should.not.equal(msg);
cloned.req.should.equal(msg.req);
cloned.res.should.equal(msg.res);
});
});
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});