/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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 delayNode = require("nr-test-utils").require("@node-red/nodes/core/function/89-delay.js");
var helper = require("node-red-node-test-helper");
var RED = require("nr-test-utils").require("node-red/lib/red");
var GRACE_PERCENTAGE=10;
var nanosToSeconds = 1000000000;
var millisToSeconds = 1000;
var secondsToMinutes = 60;
var secondsToHours = 3600;
var secondsToDays = 86400;
describe('delay Node', function() {
beforeEach(function(done) {
helper.startServer(done);
});
afterEach(function(done) {
RED.settings.nodeMessageBufferMaxLength = 0;
helper.unload();
helper.stopServer(done);
});
it('should be loaded', function(done) {
var flow = [{"id":"delayNode1","type":"delay", "nbRateUnits":"1", "name":"delayNode","pauseType":"delay","timeout":"5","timeoutUnits":"seconds","rate":"1","rateUnits":"day","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[[]]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
delayNode1.should.have.property('name', 'delayNode');
delayNode1.should.have.property('rate', 86400000);
done();
});
});
it('should be able to set rate to hour', function(done) {
var flow = [{"id":"delayNode1","type":"delay", "nbRateUnits":"1", "name":"delayNode","pauseType":"delay","timeout":"5","timeoutUnits":"seconds","rate":"1","rateUnits":"hour","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[[]]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
delayNode1.should.have.property('name', 'delayNode');
delayNode1.should.have.property('rate', 3600000);
done();
});
});
it('should be able to set rate to minute', function(done) {
var flow = [{"id":"delayNode1","type":"delay", "nbRateUnits":"1", "name":"delayNode","pauseType":"delay","timeout":"5","timeoutUnits":"seconds","rate":"1","rateUnits":"minute","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[[]]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
delayNode1.should.have.property('name', 'delayNode');
delayNode1.should.have.property('rate', 60000);
done();
});
});
var TimeUnitEnum = {
MILLIS : "milliseconds",
SECONDS : "seconds",
MINUTES : "minutes",
HOURS : "hours",
DAYS : "days"
}
/**
* Tells whether two numeric values are close enough to each other
* @param actualValue - the value we're testing
* @param expectedValue - the value we're matching the test value against
* @param tolerancePercent - the percentage of tolerated deviation (0 means equals)
*/
function closeEnough(actualValue, expectedValue, tolerancePercent) {
var toReturn;
var toleranceFraction = expectedValue * (tolerancePercent/100);
var minExpected = expectedValue - toleranceFraction;
var maxExpected = expectedValue + toleranceFraction;
if (actualValue >= minExpected && actualValue <= maxExpected) {
toReturn = true;
} else {
toReturn = false;
}
return toReturn;
}
/**
* Runs a delay test
* @param aTimeout - the timeout quantity
* @param aTimeoutUnit - the unit of the timeout: milliseconds, seconds, minutes, hours, days
*/
function genericDelayTest(aTimeout, aTimeoutUnit, done) {
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"delay","timeout":aTimeout,"timeoutUnits":aTimeoutUnit,"rate":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
var endTime = process.hrtime(startTime);
var runtimeNanos = ( (endTime[0] * nanosToSeconds) + endTime[1] );
var runtimeSeconds = runtimeNanos / nanosToSeconds;
var aTimeoutUnifiedToSeconds;
// calculating the timeout in seconds
if (aTimeoutUnit == TimeUnitEnum.MILLIS) {
aTimeoutUnifiedToSeconds = aTimeout / millisToSeconds;
} else if (aTimeoutUnit == TimeUnitEnum.SECONDS) {
aTimeoutUnifiedToSeconds = aTimeout;
} else if (aTimeoutUnit == TimeUnitEnum.MINUTES) {
aTimeoutUnifiedToSeconds = aTimeout * secondsToMinutes;
} else if (aTimeoutUnit == TimeUnitEnum.HOURS) {
aTimeoutUnifiedToSeconds = aTimeout * secondsToHours;
} else if (aTimeoutUnit == TimeUnitEnum.DAYS) {
aTimeoutUnifiedToSeconds = aTimeout * secondsToDays;
}
if (closeEnough(runtimeSeconds, aTimeoutUnifiedToSeconds, GRACE_PERCENTAGE)) {
done();
} else {
try {
should.fail(null, null, "Delayed runtime seconds " + runtimeSeconds + " was not close enough to exlected timeout seconds: " + aTimeoutUnifiedToSeconds);
} catch (err) {
done(err);
}
}
} catch(err) {
done(err);
}
});
var startTime = process.hrtime();
delayNode1.receive({payload:"delayMe"});
});
}
/**
* We send a message, take a timestamp then when the message is received by the helper node, we take another timestamp.
* Then check if the message has been delayed by the expected amount.
*/
it('delays the message in seconds', function(done) {
genericDelayTest(0.5, "seconds", done);
});
it('delays the message in milliseconds', function(done) {
genericDelayTest(500, "milliseconds", done);
});
it('delays the message in minutes', function(done) { // this is also 0.5 seconds
genericDelayTest(0.00833, "minutes", done);
});
it('delays the message in hours', function(done) { // this is also 0.5 seconds
genericDelayTest(0.0001388, "hours", done);
});
it('delays the message in days', function(done) { // this is also 0.5 seconds
genericDelayTest(0.000005787, "days", done);
});
/**
* Runs a rate limit test - only testing seconds!
* @param aLimit - the message limit count
* @param nbUnit - the multiple of the unit, aLimit Message for nbUnit Seconds
* @param runtimeInMillis - when to terminate run and count messages received
*/
function genericRateLimitSECONDSTest(aLimit, nbUnit, runtimeInMillis, rateValue, done) {
var flow = [{"id":"delayNode1","type":"delay","nbRateUnits":nbUnit,"name":"delayNode","pauseType":"rate","timeout":5,"timeoutUnits":"seconds","rate":aLimit,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var receivedMessagesStack = [];
var rate = 1000 / aLimit * nbUnit;
var receiveTimestamp;
helperNode1.on("input", function(msg) {
if (receiveTimestamp) {
var elapse = process.hrtime(receiveTimestamp);
var receiveInterval = (elapse[0] * 1000) + ((elapse[1] / nanosToSeconds) * 1000);
receiveInterval.should.be.above(rate * 0.9);
}
receiveTimestamp = process.hrtime();
receivedMessagesStack.push(msg);
});
var possibleMaxMessageCount = Math.ceil(aLimit * (runtimeInMillis / 1000) + aLimit); // +aLimit as at the start of the 2nd period, we're allowing the 3rd burst
var i = 0;
for (; i < possibleMaxMessageCount + 1; i++) {
delayNode1.receive({ payload: i, rate: rateValue });
}
setTimeout(function() {
try {
receivedMessagesStack.length.should.be.lessThan(possibleMaxMessageCount);
for (var j = 0; j < receivedMessagesStack.length; j++) {
if (receivedMessagesStack[j].payload === j) {
if (j === (receivedMessagesStack.length -1)) { // last message, all matched so far
done();
}
} else {
should.fail(null, null, "Received messages were not received in order. Message was " + receivedMessagesStack[i].payload + " on count " + i);
}
}
} catch (err) {
done(err);
}
}, runtimeInMillis);
});
}
it('limits the message rate to 1 per second', function(done) {
genericRateLimitSECONDSTest(1, 1, 1500, null, done);
});
it('limits the message rate to 1 per 2 seconds', function(done) {
this.timeout(6000);
genericRateLimitSECONDSTest(1, 2, 3000, null, done);
});
it('limits the message rate to 2 per seconds, 2 seconds', function(done) {
this.timeout(6000);
genericRateLimitSECONDSTest(2, 1, 2100, null, done);
});
it('limits the message rate using msg.rate', function (done) {
RED.settings.nodeMessageBufferMaxLength = 3;
genericRateLimitSECONDSTest(1, 1, 1500, 2000, done);
});
/**
* Runs a rate limit test with drop support - only testing seconds!
* @param aLimit - the message limit count
* @param nbUnit - the multiple of the unit, aLimit Message for nbUnit Seconds
* @param runtimeInMillis - when to terminate run and count messages received
*/
function dropRateLimitSECONDSTest(aLimit, nbUnit, runtimeInMillis, rateValue, sendIntermediate, done) {
if (!done) {
done = sendIntermediate;
sendIntermediate = false;
}
var outputs = 1;
if (sendIntermediate) {
outputs = 2;
}
var flow = [
{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"rate","timeout":5,"nbRateUnits":nbUnit,"timeoutUnits":"seconds","rate":aLimit,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":true,outputs:outputs,"wires":[["helperNode1"],["helperNode2"]]},
{id:"helperNode1", type:"helper", wires:[]},
{id:"helperNode2", type:"helper", wires:[]}
]
;
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var helperNode2 = helper.getNode("helperNode2");
var receivedMessagesStack = [];
var receivedIntermediateMessagesStack = [];
// Add a small grace to the calculated delay
var rate = 1000/aLimit + 10;
var receiveTimestamp;
helperNode1.on("input", function(msg) {
if (receiveTimestamp) {
var elapse = process.hrtime(receiveTimestamp);
var receiveInterval = (elapse[0] * 1000) + ((elapse[1] / nanosToSeconds) * 1000);
receiveInterval.should.be.above(rate * 0.9);
}
receiveTimestamp = process.hrtime();
receivedMessagesStack.push(msg);
});
helperNode2.on("input", function(msg) {
receivedIntermediateMessagesStack.push(msg);
});
var possibleMaxMessageCount = Math.ceil(aLimit * (runtimeInMillis / 1000) + aLimit); // +aLimit as at the start of the 2nd period, we're allowing the 3rd burst
var i = 0;
delayNode1.receive({ payload: i, rate: rateValue });
i++;
for (; i < possibleMaxMessageCount + 1; i++) {
setTimeout(function() {
delayNode1.receive({payload:i});
}, 2 * ((rate * i) / possibleMaxMessageCount) );
}
//we need to send a message delayed so that it doesn't get dropped
setTimeout(function() {
delayNode1.receive({payload:++i});
}, runtimeInMillis - 300); // should give enough time to squeeze another message in
setTimeout(function() {
try {
receivedMessagesStack.length.should.be.lessThan(possibleMaxMessageCount + 1);
receivedMessagesStack.length.should.be.greaterThan(2); // ensure that we receive more than 1st and last message
receivedMessagesStack[0].payload.should.be.exactly(0); // means we received the last message injected just before test termination
var foundAtLeastOneDrop = false;
for (var i = 0; i < receivedMessagesStack.length; i++) {
if (i > 0) {
if (receivedMessagesStack[i].payload - receivedMessagesStack[i - 1].payload > 1) {
foundAtLeastOneDrop = true;
}
}
}
foundAtLeastOneDrop.should.be.true();
if (sendIntermediate) {
receivedIntermediateMessagesStack.length.should.be.greaterThan(0);
} else {
receivedIntermediateMessagesStack.length.should.be.exactly(0);
}
done();
} catch (err) {
done(err);
}
}, runtimeInMillis);
});
}
it('limits the message rate to 1 per second, 4 seconds, with drop', function(done) {
this.timeout(6000);
dropRateLimitSECONDSTest(1, 1, 4000, null, done);
});
it('limits the message rate to 1 per 2 seconds, 4 seconds, with drop', function(done) {
this.timeout(6000);
dropRateLimitSECONDSTest(1, 2, 4500, null, done);
});
it('limits the message rate to 2 per second, 5 seconds, with drop', function(done) {
this.timeout(6000);
dropRateLimitSECONDSTest(2, 1, 5000, null, done);
});
it('limits the message rate to 2 per second, 5 seconds, with drop, 2nd output', function(done) {
this.timeout(6000);
dropRateLimitSECONDSTest(2, 1, 5000, null, true, done);
});
it('limits the message rate with drop using msg.rate', function (done) {
this.timeout(6000);
RED.settings.nodeMessageBufferMaxLength = 3;
dropRateLimitSECONDSTest(2, 1, 5000, 1000, done);
});
/**
* Returns true if the actualTimeout is gracefully in between the timeoutFrom and timeoutTo
* values. Gracefully means that inBetween could actually mean smaller/greater values
* than the timeout range so long as it's within an actual grace percentage.
* @param timeoutFrom - The expected timeout range (low number)
* @param timeoutTo - The expected timeout range (high number)
* @param actualTimeout - The actual measured timeout value of test
* @param allowedGracePercent - The percentage of grace allowed
*/
function inBetweenDelays(timeoutFrom, timeoutTo, actualTimeout, allowedGracePercent) {
if (closeEnough(actualTimeout, timeoutFrom, allowedGracePercent)) {
return true;
} else if (closeEnough(actualTimeout, timeoutTo, allowedGracePercent)) {
return true;
} else if (timeoutFrom < actualTimeout && timeoutTo > actualTimeout) {
return true;
} else {
return false;
}
}
/**
* Runs a VARIABLE DELAY test, checks if the delay is in between the given timeout values
* @param aTimeoutFrom - the timeout quantity which is the minimal acceptable wait period
* @param aTimeoutTo - the timeout quantity which is the maximum acceptable wait period
* @param aTimeoutUnit - the unit of the timeout: milliseconds, seconds, minutes, hours, days
* @param delay - the variable delay: milliseconds
*/
function variableDelayTest(aTimeoutFrom, aTimeoutTo, aTimeoutUnit, delay, done) {
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"delayv","timeout":0.5,"timeoutUnits":"seconds","rate":"1","rateUnits":"second","randomFirst":aTimeoutFrom,"randomLast":aTimeoutTo,"randomUnits":aTimeoutUnit,"drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
var endTime = process.hrtime(startTime);
var runtimeNanos = ( (endTime[0] * nanosToSeconds) + endTime[1] );
var runtimeSeconds = runtimeNanos / nanosToSeconds;
var aTimeoutFromUnifiedToSeconds;
var aTimeoutToUnifiedToSeconds;
// calculating the timeout in seconds
if (aTimeoutUnit == TimeUnitEnum.MILLIS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom / millisToSeconds;
aTimeoutToUnifiedToSeconds = aTimeoutTo / millisToSeconds;
} else if (aTimeoutUnit == TimeUnitEnum.SECONDS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom;
aTimeoutToUnifiedToSeconds = aTimeoutTo;
} else if (aTimeoutUnit == TimeUnitEnum.MINUTES) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToMinutes;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToMinutes;
} else if (aTimeoutUnit == TimeUnitEnum.HOURS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToHours;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToHours;
} else if (aTimeoutUnit == TimeUnitEnum.DAYS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToDays;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToDays;
}
if (inBetweenDelays(aTimeoutFromUnifiedToSeconds, aTimeoutToUnifiedToSeconds, runtimeSeconds, GRACE_PERCENTAGE)) {
done();
} else {
try {
should.fail(null, null, "Delayed runtime seconds " + runtimeSeconds + " was not \"in between enough\" enough to expected values of: " + aTimeoutFromUnifiedToSeconds + " and " + aTimeoutToUnifiedToSeconds);
} catch (err) {
done(err);
}
}
} catch(err) {
done(err);
}
});
var startTime = process.hrtime();
delayNode1.receive({payload:"delayMe", delay:delay});
});
}
it('variable delay set by msg.delay the message in milliseconds', function(done) {
variableDelayTest("200", "300", "milliseconds", 250, done);
});
it('variable delay is the default if msg.delay not specified', function(done) {
variableDelayTest("450", "550", "milliseconds", null, done);
});
it('variable delay is zero if msg.delay is zero', function(done) {
variableDelayTest("0", "20", "milliseconds", 0, done);
});
it('variable delay is zero if msg.delay is negative', function(done) {
variableDelayTest("0", "20", "milliseconds", -250, done);
});
/**
* Runs a RANDOM DELAY test, checks if the delay is in between the given timeout values
* @param aTimeoutFrom - the timeout quantity which is the minimal acceptable wait period
* @param aTimeoutTo - the timeout quantity which is the maximum acceptable wait period
* @param aTimeoutUnit - the unit of the timeout: milliseconds, seconds, minutes, hours, days
*/
function randomDelayTest(aTimeoutFrom, aTimeoutTo, aTimeoutUnit, done) {
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"random","timeout":5,"timeoutUnits":"seconds","rate":"1","rateUnits":"second","randomFirst":aTimeoutFrom,"randomLast":aTimeoutTo,"randomUnits":aTimeoutUnit,"drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
var endTime = process.hrtime(startTime);
var runtimeNanos = ( (endTime[0] * nanosToSeconds) + endTime[1] );
var runtimeSeconds = runtimeNanos / nanosToSeconds;
var aTimeoutFromUnifiedToSeconds;
var aTimeoutToUnifiedToSeconds;
// calculating the timeout in seconds
if (aTimeoutUnit == TimeUnitEnum.MILLIS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom / millisToSeconds;
aTimeoutToUnifiedToSeconds = aTimeoutTo / millisToSeconds;
} else if (aTimeoutUnit == TimeUnitEnum.SECONDS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom;
aTimeoutToUnifiedToSeconds = aTimeoutTo;
} else if (aTimeoutUnit == TimeUnitEnum.MINUTES) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToMinutes;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToMinutes;
} else if (aTimeoutUnit == TimeUnitEnum.HOURS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToHours;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToHours;
} else if (aTimeoutUnit == TimeUnitEnum.DAYS) {
aTimeoutFromUnifiedToSeconds = aTimeoutFrom * secondsToDays;
aTimeoutToUnifiedToSeconds = aTimeoutTo * secondsToDays;
}
if (inBetweenDelays(aTimeoutFromUnifiedToSeconds, aTimeoutToUnifiedToSeconds, runtimeSeconds, GRACE_PERCENTAGE)) {
done();
} else {
try {
should.fail(null, null, "Delayed runtime seconds " + runtimeSeconds + " was not \"in between enough\" enough to expected values of: " + aTimeoutFromUnifiedToSeconds + " and " + aTimeoutToUnifiedToSeconds);
} catch (err) {
done(err);
}
}
} catch(err) {
done(err);
}
});
var startTime = process.hrtime();
delayNode1.receive({payload:"delayMe"});
});
}
it('randomly delays the message in seconds', function(done) {
randomDelayTest(0.4, 0.8, "seconds", done);
});
it('randomly delays the message in milliseconds', function(done) {
randomDelayTest("400", "800", "milliseconds", done);
});
it('randomly delays the message in minutes', function(done) {
randomDelayTest(0.0066, 0.0133, "minutes", done);
});
it('delays the message in hours', function(done) {
randomDelayTest(0.000111111, 0.000222222, "hours", done);
});
it('delays the message in days', function(done) {
randomDelayTest(0.0000046296, 0.0000092593, "days", done);
});
it('handles delay queue', function(done) {
this.timeout(2000);
var flow = [{id:"delayNode1", type :"delay","name":"delayNode","nbRateUnits":"1","pauseType":"queue","timeout":1,"timeoutUnits":"seconds","rate":4,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "_none_") {
msg.payload.should.equal(2);
(Date.now() - t).should.be.approximately(500,200);
}
else if (msg.topic === "A") {
msg.payload.should.equal(4);
(Date.now() - t).should.be.approximately(750,200);
}
else {
msg.topic.should.equal("B");
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(1000,200);
done();
}
} catch(e) {
done(e);
}
});
setTimeout(function() {
// send test messages
delayNode1.receive({payload:1}); // send something with blank topic
delayNode1.receive({payload:1,topic:"A"}); // and something with a fixed topic
delayNode1.receive({payload:1,topic:"B"}); // and something else with a fixed topic (3rd tick)
delayNode1.receive({payload:2,topic:"A"}); // these should replace them in queue
delayNode1.receive({payload:3,topic:"A"}); // ditto
delayNode1.receive({payload:2}); // so only this should get out on first tick
delayNode1.receive({payload:4,topic:"A"}); // and this one on second tick
}, 275); // wait one tick beofre starting.. (to test no messages in queue path.)
});
});
it('handles timed queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"timed","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "_none_") {
msg.payload.should.equal(2);
(Date.now() - t).should.be.approximately(500,200);
}
else if (msg.topic === "A") {
msg.payload.should.equal(4);
(Date.now() - t).should.be.approximately(500,200);
}
else {
msg.topic.should.equal("B");
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(500,200);
done();
}
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1}); // send something with blank topic
delayNode1.receive({payload:1,topic:"A"}); // and something with a fixed topic
delayNode1.receive({payload:1,topic:"B"}); // and something else with a fixed topic
delayNode1.receive({payload:2,topic:"A"}); // these should replace them in queue
delayNode1.receive({payload:3,topic:"A"}); // ditto
delayNode1.receive({payload:2}); // so all should go on first tick
delayNode1.receive({payload:4,topic:"A"}); // and nothing on second
});
});
it('can flush delay queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"delay","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "foo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
else {
if (msg.topic === "bar") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
}
if (c === 5) { done(); }
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1,topic:"foo"}); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({flush:true}); }); // reset the queue
});
});
it('can part flush delay queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"delay","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "foo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
else if (msg.topic === "bar") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(200,100);
c = c + 1;
}
else if (msg.topic === "boo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(400,100);
c = c + 1;
}
if (c === 5) { done(); }
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1,topic:"foo"});
setImmediate( function() { delayNode1.receive({payload:1,topic:"foo"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"boo"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"boo"}); } );
setImmediate( function() { delayNode1.receive({flush:2}); });
setTimeout( function() { delayNode1.receive({flush:1}); }, 200);
setTimeout( function() { delayNode1.receive({flush:4}); }, 400);
});
});
it('can reset delay queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"delay","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
c = c + 1;
});
setTimeout( function() {
if (c === 0) { done(); }
}, 700);
// send test messages
delayNode1.receive({payload:1,topic:"foo"}); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({reset:true}); }); // reset the queue
});
});
it('can flush rate limit queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"rate","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "foo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
else {
if (msg.topic === "bar") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
}
if (c === 5) { done(); }
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1,topic:"foo"}); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({flush:true}); }); // reset the queue
});
});
it('can part flush rate limit queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"rate","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "foo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
else if (msg.topic === "bar") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(200,100);
c = c + 1;
}
else if (msg.topic === "boo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(400,100);
c = c + 1;
}
if (c === 5) { done(); }
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1,topic:"foo"});
setImmediate( function() { delayNode1.receive({payload:1,topic:"foo"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"foo"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"boo"}); } );
setImmediate( function() { delayNode1.receive({flush:2}); });
setTimeout( function() { delayNode1.receive({flush:1}); }, 200);
setTimeout( function() { delayNode1.receive({flush:4}); }, 400);
});
});
it('can part push to front of rate limit queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"rate","timeout":1,"timeoutUnits":"seconds","rate":1,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "aoo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(2,50);
c = c + 1;
}
else if (msg.topic === "eoo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(4,50);
c = c + 1;
}
else if (msg.topic === "coo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(202,50);
c = c + 1;
}
else if (msg.topic === "boo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(406,50);
c = c + 1;
}
else if (msg.topic === "doo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(4,50);
c = c + 1;
}
if (c === 5) { done(); }
} catch(e) {
done(e);
}
});
// send test messages
delayNode1.receive({payload:1,topic:"aoo"});
setImmediate( function() { delayNode1.receive({payload:1,topic:"boo"}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"coo",toFront:true}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"doo",toFront:true,flush:1}); } );
setImmediate( function() { delayNode1.receive({payload:1,topic:"eoo",toFront:true}); } );
setImmediate( function() { delayNode1.receive({flush:1}); });
setTimeout( function() { delayNode1.receive({flush:1}); }, 200);
setTimeout( function() { delayNode1.receive({flush:4}); }, 400);
});
});
it('can reset rate limit queue', function(done) {
this.timeout(2000);
var flow = [{"id":"delayNode1","type":"delay","name":"delayNode","pauseType":"rate","timeout":1,"timeoutUnits":"seconds","rate":2,"rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(delayNode, flow, function() {
var delayNode1 = helper.getNode("delayNode1");
var helperNode1 = helper.getNode("helperNode1");
var t = Date.now();
var c = 0;
helperNode1.on("input", function(msg) {
msg.should.have.a.property('payload');
msg.should.have.a.property('topic');
try {
if (msg.topic === "foo") {
msg.payload.should.equal(1);
(Date.now() - t).should.be.approximately(0,100);
c = c + 1;
}
} catch(e) {
done(e);
}
});
setTimeout( function() {
if (c === 1) { done(); }
}, 700);
// send test messages
delayNode1.receive({payload:1,topic:"foo"}); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({payload:1,topic:"bar"}); } ); // send something with blank topic
setImmediate( function() { delayNode1.receive({reset:true}); }); // reset the queue
});
});
/* Messaging API support */
function mapiDoneTestHelper(done, pauseType, drop, msgAndTimings) {
const completeNode = require("nr-test-utils").require("@node-red/nodes/core/common/24-complete.js");
const flow = [{id:"delayNode1",type:"delay",name:"delayNode", pauseType:pauseType, timeout:"1", timeoutUnits: "seconds",
rate: "1", nbRateUnits: "1", rateUnits: "second", randomFirst:"950", randomLast:"1050",randomUnits:"milliseconds",
drop: drop, wires: [[]]},
{id:"completeNode1",type:"complete",scope: ["delayNode1"],uncaught:false,wires:[["helperNode1"]]},
{id:"helperNode1",type:"helper", wires:[[]]}];
const numMsgs = msgAndTimings.length;
helper.load([delayNode, completeNode], flow, function () {
const delayNode1 = helper.getNode("delayNode1");
const helperNode1 = helper.getNode("helperNode1");
const t = Date.now();
let c = 0;
helperNode1.on("input", function (msg) {
msg.should.have.a.property('payload', msgAndTimings[c].msg.payload);
(Date.now() - t).should.be.approximately(msgAndTimings[c].avr, msgAndTimings[c].var);
c += 1;
if ( c === numMsgs) {
done();
}
});
for (let i = 0; i < numMsgs; i++) {
setImmediate( function() { delayNode1.receive(msgAndTimings[i].msg); } );
}
});
}
it('calls done when queued message is emitted (type: delay)', function(done) {
mapiDoneTestHelper(done, "delay", false, [{msg:{payload:1}, avr:1000, var:100}]);
});
it('calls done when queued message is emitted (type: delayv)', function(done) {
mapiDoneTestHelper(done, "delayv", false, [{msg:{payload:1, delay:1000}, avr:1000, var:100}]);
});
it('calls done when queued message is emitted (type: delay)', function(done) {
mapiDoneTestHelper(done, "random", false, [{msg:{payload:1}, avr:1000, var:100}]);
});
it('calls done when queued message is cleared (type: delay)', function(done) {
mapiDoneTestHelper(done, "delay", false, [{msg:{payload:1}, avr:100, var:100},
{msg:{payload:2,reset:true}, avr:100, var:100}]);
});
it('calls done when queued message is cleared (type: delayv)', function(done) {
mapiDoneTestHelper(done, "delayv", false, [{msg:{payload:1, delay:1000}, avr:100, var:100},
{msg:{payload:2, reset:true}, avr:100, var:100}]);
});
it('calls done when queued message is cleared (type: random)', function(done) {
mapiDoneTestHelper(done, "random", false, [{msg:{payload:1}, avr:100, var:100},
{msg:{payload:2,reset:true}, avr:100, var:100}]);
});
it('calls done when queued message is flushed (type: delay)', function(done) {
mapiDoneTestHelper(done, "delay", false, [{msg:{payload:1}, avr:100, var:100},
{msg:{payload:2,flush:true}, avr:100, var:100}]);
});
it('calls done when queued message is flushed (type: delayv)', function(done) {
mapiDoneTestHelper(done, "delayv", false, [{msg:{payload:1, delay:1000}, avr:100, var:100},
{msg:{payload:2, flush:true}, avr:100, var:100}]);
});
it('calls done when queued message is flushed (type: random)', function(done) {
mapiDoneTestHelper(done, "random", false, [{msg:{payload:1}, avr:100, var:100},
{msg:{payload:2,flush:true}, avr:100, var:100}]);
});
it('calls done when rated message is emitted (drop: false)', function(done) {
mapiDoneTestHelper(done, "rate", false, [{msg:{payload:1}, avr:0, var:100},
{msg:{payload:2}, avr:1000, var:100}]);
});
it('calls done when rated message is emitted (drop: true)', function(done) {
mapiDoneTestHelper(done, "rate", true, [{msg:{payload:1}, avr:0, var:100},
{msg:{payload:2}, avr:0, var:100}]);
});
it('calls done when rated message is flushed', function(done) {
mapiDoneTestHelper(done, "rate", false, [{msg:{payload:1}, avr:0, var:100},
{msg:{payload:2}, avr:0, var:100},
{msg:{payload:3,flush:true}, avr:0, var:100}]);
});
it('calls done when queued messages are sent (queue)', function(done) {
this.timeout(3000);
mapiDoneTestHelper(done, "queue", false, [{msg:{payload:1,topic:"A"}, avr:1000, var:700},
{msg:{payload:2,topic:"B"}, avr:2000, var:700}]);
});
it('calls done when queued messages are sent (timed)', function(done) {
mapiDoneTestHelper(done, "timed", false, [{msg:{payload:1,topic:"a"}, avr:500, var:700},
{msg:{payload:2,topic:"b"}, avr:500, var:700}]);
});
it('calls done when queue is reset (queue/timed)', function(done) {
mapiDoneTestHelper(done, "timed", false, [{msg:{payload:1,topic:"a"}, avr:0, var:500},
{msg:{payload:2,reset:true}, avr:0, var:500}]);
});
it('calls done when queue is flushed (queue/timed)', function(done) {
mapiDoneTestHelper(done, "timed", false, [{msg:{payload:1,topic:"a"}, avr:0, var:500},
{msg:{payload:2,flush:true}, avr:0, var:500}]);
});
});