feat(logger): custom tags in logger

docs/usage.md

@@ -308,7 +308,7 @@ Example: `5-5-17-46-47-screenshot--some-id.png`
 
 ## Logger
 
-For convenient console output, use `wdi5.getLogger()`. It supports the `syslog`-like levels `log`, `info`, `warn` and `error`:
+For convenient console output, use `wdi5.getLogger('tag')`. It supports the `syslog`-like levels `log`, `info`, `warn` and `error`:
 
 ```javascript
 const wdi5 = require("wdi5")
@@ -318,6 +318,12 @@ wdi5.getLogger().log("any", "number", "of", "log", "parts")
 The log level is set by the either in `wdio.conf.js` via `wdi5.logLevel` or
 by `wdi5.getLogger().setLoglevel(level = {string} "error"| "verbose" | "silent")`
 
+The 'tag' is an optional parameter and when passed will display logs on the console log with a prefix as follows:
+
+```cmd
+[TAG] any number of log parts
+```
+
 ## Navigation
 
 In the test, you can navigate the UI5 webapp via `goTo(options)` in one of two ways:

src/lib/Logger.ts

@@ -2,19 +2,24 @@ import { chalk as console } from "./coloredConsole"
 import { wdi5LogLevel } from "../types/wdi5.types"
 
 export class Logger {
- private static instance: Logger | null = null
- private constructor() {
+ private static instance
+ private constructor(sPrefix = "wdi5") {
+ this.prefix = `[${sPrefix}]`
  // eliminate creating new instances
  }
 
- private prefix = "[wdi5]"
+ private prefix: string
  private logLevel: wdi5LogLevel = "error"
 
- static getInstance(): Logger {
- if (Logger.instance === null) {
- Logger.instance = new Logger()
+ static getInstance(sPrefix = "wdi5"): Logger {
+ if (!Logger.instance) {
+ Logger.instance = Object.assign({})
  }
- return Logger.instance
+
+ if (!Logger.instance[sPrefix]) {
+ Logger.instance[sPrefix] = new Logger(sPrefix)
+ }
+ return Logger.instance[sPrefix]
  }
 
  getLogLevel(): wdi5LogLevel {

src/wdi5.ts

@@ -1,8 +1,12 @@
 import { Logger as _Logger } from "./lib/Logger"
 const Logger = _Logger.getInstance()
 export class wdi5 {
- static getLogger() {
- return Logger
+ static getLogger(sPrefix = "wdi5") {
+ if (sPrefix === "wdi5") {
+ return Logger
+ } else {
+ return _Logger.getInstance(sPrefix)
+ }
  }
 
  static async goTo(param: any, oRoute) {