Start adding tests

lib/utils/logger/index.js

@@ -1,20 +1,22 @@
 const chalk = require('chalk');
 
-const Logger = {
-  log : (...args) =>{
-    console.log(...args);
-  },
-
-  warn : (...args) =>{
-    console.log('⚠️', chalk.yellow.bold(...args));
-  },
-
-  err : (...args) =>{
-    console.log('🙀', chalk.red.bold(...args));
+const getLogger = function(transport){
+  return {
+    log : (...args) =>{
+      transport.log(...args);
+    },
+
+    warn : (...args) =>{
+      transport.log('⚠️', chalk.yellow.bold(...args));
+    },
+
+    err : (...args) =>{
+      transport.log('🙀', chalk.red.bold(...args));
+    }
   }
-
-};
+}
 
 module.exports = {
-  logger: Logger
+  logger: getLogger(console),
+  getLogger: getLogger
 }

lib/utils/logger/index.spec.js

@@ -0,0 +1,42 @@
+const {getLogger} = require('./index');
+
+describe('utils/logger', () => {
+    let mockConsole;
+    let logger;
+
+    beforeAll(() => {
+        mockConsole = {
+            content: '',
+
+            log: function(...args) {
+                this.content = [...args];
+            },
+        }
+        logger = getLogger(mockConsole);
+    });
+
+    test('Testing normal log message', () => {
+
+        logger.log('test', 'plop');
+
+        expect(mockConsole.content).toHaveLength(2);
+        expect(mockConsole.content).toEqual(['test', 'plop']);
+    });
+
+    test('Testing warning log message', () => {
+
+        logger.warn('test', 'plop');
+
+        expect(mockConsole.content).toHaveLength(2);
+        expect(mockConsole.content[0]).toEqual('⚠️');
+    });
+
+    test('Testing error log message', () => {
+
+        logger.err('test', 'plop');
+
+        expect(mockConsole.content).toHaveLength(2);
+        expect(mockConsole.content[0]).toEqual('🙀');
+    });
+}); 
+