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/**
* Copyright 2014 IBM Corp.
*
* 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 rangeNode = require("../../../../nodes/core/logic/16-range.js");
var helper = require("../../helper.js");
describe('RangeNode', function() {
beforeEach(function(done) {
helper.startServer(done);
});
afterEach(function(done) {
helper.unload();
helper.stopServer(done);
});
it('should be loaded', function(done) {
var flow = [{"id":"rangeNode1","type":"range","minin":"0","maxin":"99","minout":"100","maxout":"199","action":"range","round":true,"name":"rangeNode","wires":[[]]}];
helper.load(rangeNode, flow, function() {
var rangeNode1 = helper.getNode("rangeNode1");
rangeNode1.should.have.property('name', 'rangeNode');
done();
});
});
/**
* Run a generic range test
* @param action - scale/clamp (range limit)/roll (modulo): what action to choose
* @param minin - map from minimum value
* @param maxin - map from maximum value
* @param minout - map to minimum value
* @param maxout - map to maximum value
* @param round - whether to round the result to the nearest integer
* @param aPayload - what payload to send to the range node
* @param expectedResult - what result we're expecting
* @param done - the callback to call when test done
*/
function genericRangeTest(action, minin, maxin, minout, maxout, round, aPayload, expectedResult, done) {
var flow = [{"id":"rangeNode1","type":"range","minin":minin,"maxin":maxin,"minout":minout,"maxout":maxout,"action":action,"round":round,"name":"rangeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(rangeNode, flow, function() {
var rangeNode1 = helper.getNode("rangeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal(expectedResult);
done();
} catch(err) {
done(err);
}
});
rangeNode1.receive({payload:aPayload});
});
}
it('ranges numbers up tenfold', function(done) {
genericRangeTest("scale", 0, 100, 0, 1000, false, 50, 500, done);
});
it('ranges numbers down such as centimetres to metres', function(done) {
genericRangeTest("scale", 0, 100, 0, 1, false, 55, 0.55, done);
});
it('wraps numbers down say for degree/rotation reading 1/2', function(done) {
genericRangeTest("roll", 0, 10, 0, 360, true, 15, 180, done); // 1/2 around wrap => "one and a half turns"
});
it('wraps numbers around say for degree/rotation reading 1/3', function(done) {
genericRangeTest("roll", 0, 10, 0, 360, true, 13.3333, 120, done); // 1/3 around wrap => "one and a third turns"
});
it('wraps numbers around say for degree/rotation reading 1/4', function(done) {
genericRangeTest("roll", 0, 10, 0, 360, true, 12.5, 90, done); // 1/4 around wrap => "one and a quarter turns"
});
it('wraps numbers around say for degree/rotation reading 1/4', function(done) {
genericRangeTest("roll", 0, 10, 0, 360, true, 12.5, 90, done); // 1/4 around wrap => "one and a quarter turns"
});
it('wraps numbers down say for degree/rotation reading 1/4', function(done) {
genericRangeTest("roll", 0, 10, 0, 360, true, -12.5, 270, done); // 1/4 backwards wrap => "one and a quarter turns backwards"
});
it('clamps numbers within a range - over max', function(done) {
genericRangeTest("clamp", 0, 10, 0, 1000, false, 111, 1000, done);
});
it('clamps numbers within a range - below min', function(done) {
genericRangeTest("clamp", 0, 10, 0, 1000, false, -1, 0, done);
});
it('reports if input is not a number', function(done) {
var flow = [{"id":"rangeNode1","type":"range","minin":0,"maxin":0,"minout":0,"maxout":0,"action":"scale","round":true,"name":"rangeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(rangeNode, flow, function() {
var rangeNode1 = helper.getNode("rangeNode1");
var helperNode1 = helper.getNode("helperNode1");
var sinon = require('sinon');
sinon.stub(rangeNode1, 'log', function(log) {
if(log.indexOf("Not a number") > -1) {
done();
} else {
try {
should.fail(null, null, "Non-number inputs should be reported!");
} catch (err) {
done(err);
}
}
});
rangeNode1.receive({payload:"NOT A NUMBER"});
});
});
});
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