1
0
mirror of https://github.com/node-red/node-red.git synced 2023-10-10 13:36:53 +02:00
node-red/test/red/runtime/util_spec.js

220 lines
7.9 KiB
JavaScript
Raw Normal View History

2014-08-28 15:25:41 +02:00
/**
* Copyright 2014, 2015 IBM Corp.
2014-08-28 15:25:41 +02:00
*
* 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");
2014-08-28 15:25:41 +02:00
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);
});
});
2014-08-28 15:25:41 +02:00
describe('ensureString', function() {
it('strings are preserved', function() {
util.ensureString('string').should.equal('string');
2014-08-28 15:25:41 +02:00
});
it('Buffer is converted', function() {
var s = util.ensureString(new Buffer('foo'));
2014-08-28 15:25:41 +02:00
s.should.equal('foo');
(typeof s).should.equal('string');
});
it('Object is converted to JSON', function() {
var s = util.ensureString({foo: "bar"});
2014-08-28 15:25:41 +02:00
(typeof s).should.equal('string');
should.deepEqual(JSON.parse(s), {foo:"bar"});
});
it('stringifies other things', function() {
var s = util.ensureString(123);
2014-08-28 15:25:41 +02:00
(typeof s).should.equal('string');
s.should.equal('123');
});
});
2014-09-10 13:46:56 +02:00
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);
});
});
describe('getMessageProperty', function() {
it('retrieves a simple property', function() {
var v = util.getMessageProperty({a:"foo"},"msg.a");
v.should.eql("foo");
var v2 = util.getMessageProperty({a:"foo"},"a");
v2.should.eql("foo");
});
it('should return undefined if property does not exist', function() {
var v = util.getMessageProperty({a:"foo"},"msg.b");
should.not.exist(v);
});
it('should throw error if property parent does not exist', function() {
/*jshint immed: false */
(function() {
util.getMessageProperty({a:"foo"},"msg.a.b.c");
}).should.throw();
})
});
describe('setMessageProperty', function() {
it('sets a property', function() {
var msg = {a:"foo"};
util.setMessageProperty(msg,"msg.a","bar");
msg.a.should.eql('bar');
});
it('sets a deep level property', function() {
var msg = {a:{b:{c:"foo"}}};
util.setMessageProperty(msg,"msg.a.b.c","bar");
msg.a.b.c.should.eql('bar');
});
it('creates missing parent properties by default', function() {
var msg = {a:{}};
util.setMessageProperty(msg,"msg.a.b.c","bar");
msg.a.b.c.should.eql('bar');
})
it('does not create missing parent properties', function() {
var msg = {a:{}};
util.setMessageProperty(msg,"msg.a.b.c","bar",false);
should.not.exist(msg.a.b);
})
it('deletes property if value is undefined', function() {
var msg = {a:{b:{c:"foo"}}};
util.setMessageProperty(msg,"msg.a.b.c",undefined);
should.not.exist(msg.a.b.c);
})
it('does not create missing parent properties if value is undefined', function() {
var msg = {a:{}};
util.setMessageProperty(msg,"msg.a.b.c",undefined);
should.not.exist(msg.a.b);
})
2015-12-31 00:09:35 +01:00
});
describe('evaluateNodeProperty', function() {
it('returns string',function() {
var result = util.evaluateNodeProperty('hello','str');
result.should.eql('hello');
});
it('returns number',function() {
var result = util.evaluateNodeProperty('0123','num');
result.should.eql(123);
});
it('returns evaluated json',function() {
var result = util.evaluateNodeProperty('{"a":123}','json');
result.should.eql({a:123});
});
it('returns regex',function() {
var result = util.evaluateNodeProperty('^abc$','re');
result.toString().should.eql("/^abc$/");
});
it('returns msg property',function() {
var result = util.evaluateNodeProperty('foo.bar','msg',{},{foo:{bar:"123"}});
result.should.eql("123");
});
it('returns flow property',function() {
var result = util.evaluateNodeProperty('foo.bar','flow',{
context:function() { return {
flow: { get: function(k) {
if (k === 'foo.bar') {
return '123';
} else {
return null;
}
}}
}}
},{});
result.should.eql("123");
});
it('returns global property',function() {
var result = util.evaluateNodeProperty('foo.bar','global',{
context:function() { return {
global: { get: function(k) {
if (k === 'foo.bar') {
return '123';
} else {
return null;
}
}}
}}
},{});
result.should.eql("123");
});
})
2014-08-28 15:25:41 +02:00
});