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node-red/test/unit/@node-red/util/lib/log_spec.js

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/**
* 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 sinon = require("sinon");
var util = require("util");
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var NR_TEST_UTILS = require("nr-test-utils");
var log = NR_TEST_UTILS.require("@node-red/util").log;
describe("@node-red/util/log", function() {
beforeEach(function () {
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var spy = sinon.stub(util, 'log', function(arg){});
var settings = {logging: { console: { level: 'metric', metrics: true } } };
log.init(settings);
});
afterEach(function() {
util.log.restore();
});
it('it can raise an error', function() {
var ret = log.error("This is an error");
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sinon.assert.calledWithMatch(util.log,"[error] This is an error");
});
it('it can raise a trace', function() {
var ret = log.trace("This is a trace");
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sinon.assert.calledWithMatch(util.log,"[trace] This is a trace");
});
it('it can raise a debug', function() {
var ret = log.debug("This is a debug");
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sinon.assert.calledWithMatch(util.log,"[debug] This is a debug");
});
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it('it can raise a info', function() {
var ret = log.info("This is an info");
sinon.assert.calledWithMatch(util.log,"[info] This is an info");
});
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it('it can raise a warn', function() {
var ret = log.warn("This is a warn");
sinon.assert.calledWithMatch(util.log,"[warn] This is a warn");
});
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it('it can raise a metric', function() {
var metrics = {};
metrics.level = log.METRIC;
metrics.nodeid = "testid";
metrics.event = "node.test.testevent";
metrics.msgid = "12345";
metrics.value = "the metric payload";
var ret = log.log(metrics);
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util.log.calledOnce.should.be.true();
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util.log.firstCall.args[0].indexOf("[metric] ").should.equal(0);
var body = JSON.parse(util.log.firstCall.args[0].substring(9));
body.should.have.a.property("nodeid","testid");
body.should.have.a.property("event","node.test.testevent");
body.should.have.a.property("msgid","12345");
body.should.have.a.property("value","the metric payload");
body.should.have.a.property("timestamp");
body.should.have.a.property("level",log.METRIC);
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});
it('it checks metrics are enabled', function() {
log.metric().should.equal(true);
var sett = {logging: { console: { level: 'info', metrics: false } } };
log.init(sett);
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log.metric().should.equal(false);
});
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it('it logs node type and name if provided',function() {
log.log({level:log.INFO,type:"nodeType",msg:"test",name:"nodeName",id:"nodeId"});
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util.log.calledOnce.should.be.true();
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util.log.firstCall.args[0].indexOf("[nodeType:nodeName]").should.not.equal(-1);
});
it('it logs node type and id if no name provided',function() {
log.log({level:log.INFO,type:"nodeType",msg:"test",id:"nodeId"});
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util.log.calledOnce.should.be.true();
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util.log.firstCall.args[0].indexOf("[nodeType:nodeId]").should.not.equal(-1);
});
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it('ignores lower level messages and metrics', function() {
var settings = {logging: { console: { level: 'warn', metrics: false } } };
log.init(settings);
log.error("This is an error");
log.warn("This is a warn");
log.info("This is an info");
log.debug("This is a debug");
log.trace("This is a trace");
log.log({level:log.METRIC,msg:"testMetric"});
sinon.assert.calledWithMatch(util.log,"[error] This is an error");
sinon.assert.calledWithMatch(util.log,"[warn] This is a warn");
sinon.assert.neverCalledWithMatch(util.log,"[info] This is an info");
sinon.assert.neverCalledWithMatch(util.log,"[debug] This is a debug");
sinon.assert.neverCalledWithMatch(util.log,"[trace] This is a trace");
sinon.assert.neverCalledWithMatch(util.log,"[metric] ");
});
it('ignores lower level messages but accepts metrics', function() {
var settings = {logging: { console: { level: 'log', metrics: true } } };
log.init(settings);
log.error("This is an error");
log.warn("This is a warn");
log.info("This is an info");
log.debug("This is a debug");
log.trace("This is a trace");
log.log({level:log.METRIC,msg:"testMetric"});
sinon.assert.calledWithMatch(util.log,"[error] This is an error");
sinon.assert.calledWithMatch(util.log,"[warn] This is a warn");
sinon.assert.calledWithMatch(util.log,"[info] This is an info");
sinon.assert.neverCalledWithMatch(util.log,"[debug] This is a debug");
sinon.assert.neverCalledWithMatch(util.log,"[trace] This is a trace");
sinon.assert.calledWithMatch(util.log,"[metric] ");
});
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it('default settings set to INFO and metrics off', function() {
log.init({logging:{}});
log.error("This is an error");
log.warn("This is a warn");
log.info("This is an info");
log.debug("This is a debug");
log.trace("This is a trace");
log.log({level:log.METRIC,msg:"testMetric"});
sinon.assert.calledWithMatch(util.log,"[error] This is an error");
sinon.assert.calledWithMatch(util.log,"[warn] This is a warn");
sinon.assert.calledWithMatch(util.log,"[info] This is an info");
sinon.assert.neverCalledWithMatch(util.log,"[debug] This is a debug");
sinon.assert.neverCalledWithMatch(util.log,"[trace] This is a trace");
sinon.assert.neverCalledWithMatch(util.log,"[metric] ");
});
it('no logger used if custom logger handler does not exist', function() {
var settings = {logging: { customLogger: { level: 'trace', metrics: true } } };
log.init(settings);
log.error("This is an error");
log.warn("This is a warn");
log.info("This is an info");
log.debug("This is a debug");
log.trace("This is a trace");
log.log({level:log.METRIC,msg:"testMetric"});
sinon.assert.neverCalledWithMatch(util.log,"[error] This is an error");
sinon.assert.neverCalledWithMatch(util.log,"[warn] This is a warn");
sinon.assert.neverCalledWithMatch(util.log,"[info] This is an info");
sinon.assert.neverCalledWithMatch(util.log,"[debug] This is a debug");
sinon.assert.neverCalledWithMatch(util.log,"[trace] This is a trace");
sinon.assert.neverCalledWithMatch(util.log,"[metric] ");
});
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it('add a custom log handler directly', function() {
var settings = {};
log.init(settings);
var logEvents = [];
var loggerOne = {
emit: function(event,msg) {
logEvents.push({logger:1,msg:msg});
}
};
var loggerTwo = {
emit: function(event,msg) {
logEvents.push({logger:2,msg:msg});
}
};
log.addHandler(loggerOne);
log.addHandler(loggerTwo);
log.error("This is an error");
log.warn("This is a warn");
log.info("This is an info");
log.debug("This is a debug");
log.trace("This is a trace");
log.log({level:log.METRIC,msg:"testMetric"});
logEvents.filter(function(evt) { return evt.logger === 1}).should.have.lengthOf(6);
logEvents.filter(function(evt) { return evt.logger === 2}).should.have.lengthOf(6);
});
it('remove a custom log handler directly', function() {
var settings = {};
log.init(settings);
var logEvents = [];
var loggerOne = {
emit: function(event,msg) {
logEvents.push({logger:1,msg:msg});
}
};
var loggerTwo = {
emit: function(event,msg) {
logEvents.push({logger:2,msg:msg});
}
};
log.addHandler(loggerOne);
log.addHandler(loggerTwo);
log.info("This is an info");
logEvents.filter(function(evt) { return evt.logger === 1}).should.have.lengthOf(1);
logEvents.filter(function(evt) { return evt.logger === 2}).should.have.lengthOf(1);
log.removeHandler(loggerTwo);
log.info("This is an info");
logEvents.filter(function(evt) { return evt.logger === 1}).should.have.lengthOf(2);
logEvents.filter(function(evt) { return evt.logger === 2}).should.have.lengthOf(1);
log.removeHandler(loggerOne);
log.info("This is an info");
logEvents.filter(function(evt) { return evt.logger === 1}).should.have.lengthOf(2);
logEvents.filter(function(evt) { return evt.logger === 2}).should.have.lengthOf(1);
});
});