Exposes the loggerAdapter as log to Cloud Functions and Triggers (#1565)

This allows access to logging inside cloud code and triggers via
    request.log.info
    request.log.error

spec/CloudCodeLogger.spec.js

@@ -0,0 +1,61 @@
+'use strict';
+var LoggerController = require('../src/Controllers/LoggerController').LoggerController;
+var FileLoggerAdapter = require('../src/Adapters/Logger/FileLoggerAdapter').FileLoggerAdapter;
+
+describe("Cloud Code Logger", () => {
+
+    it("should expose log to functions", (done) => {
+        var logController = new LoggerController(new FileLoggerAdapter());
+
+        Parse.Cloud.define("loggerTest", (req, res) => {
+            req.log.info('logTest', 'info log', {info: 'some log' });
+            req.log.error('logTest','error log', {error: 'there was an error'});
+            res.success({});
+        });
+
+        Parse.Cloud.run('loggerTest').then(() => {
+            Parse.Cloud._removeHook('Functions', 'logTest');
+            return logController.getLogs({from: Date.now() - 500, size: 1000});
+        }).then((res) => {
+            expect(res.length).not.toBe(0);
+            let lastLogs =  res.slice(0, 2);
+            let errorMessage = lastLogs[0];
+            let infoMessage = lastLogs[1];
+            expect(errorMessage.level).toBe('error');
+            expect(errorMessage.error).toBe('there was an error');
+            expect(errorMessage.message).toBe('logTest error log');
+            expect(infoMessage.level).toBe('info');
+            expect(infoMessage.info).toBe('some log');
+            expect(infoMessage.message).toBe('logTest info log');
+            done();
+        });
+    });
+
+    it("should expose log to trigger", (done) => {
+        var logController = new LoggerController(new FileLoggerAdapter());
+
+        Parse.Cloud.beforeSave("MyObject", (req, res) => {
+            req.log.info('beforeSave MyObject', 'info log', {info: 'some log' });
+            req.log.error('beforeSave MyObject','error log', {error: 'there was an error'});
+            res.success({});
+        });
+
+        let obj = new Parse.Object('MyObject');
+        obj.save().then(() => {
+            Parse.Cloud._removeHook('Triggers', 'beforeSave', 'MyObject');
+            return logController.getLogs({from: Date.now() - 500, size: 1000})
+        }).then((res) => {
+            expect(res.length).not.toBe(0);
+            let lastLogs =  res.slice(0, 2);
+            let errorMessage = lastLogs[0];
+            let infoMessage = lastLogs[1];
+            expect(errorMessage.level).toBe('error');
+            expect(errorMessage.error).toBe('there was an error');
+            expect(errorMessage.message).toBe('beforeSave MyObject error log');
+            expect(infoMessage.level).toBe('info');
+            expect(infoMessage.info).toBe('some log');
+            expect(infoMessage.message).toBe('beforeSave MyObject info log');
+            done();
+        });
+    });
+});

spec/FileLoggerAdapter.spec.js

@@ -7,7 +7,8 @@ describe('info logs', () => {
     var fileLoggerAdapter = new FileLoggerAdapter();
     fileLoggerAdapter.info('testing info logs', () => {
       fileLoggerAdapter.query({
-        size: 1,
+        from: new Date(Date.now() - 500),
+        size: 100,
         level: 'info'
       }, (results) => {
         if(results.length == 0) {
@@ -28,7 +29,8 @@ describe('error logs', () => {
     var fileLoggerAdapter = new FileLoggerAdapter();
     fileLoggerAdapter.error('testing error logs', () => {
       fileLoggerAdapter.query({
-        size: 1,
+        from: new Date(Date.now() - 500),
+        size: 100,
         level: 'error'
       }, (results) => {
         if(results.length == 0) {