Protractor Logging – console output – print to log file

Protractor Console output

As protractor is built on top of webdriver JS, we should resolve promise while printing to console output.

so below statement doesn’t work

console.log("Browser title :- " + browser.gettitle());

instead, you can use

browser.getTitle().then(function(txt){
console.log("Browser Title :- " + txt);
});

watch details here

Protractor log to file

As protractor is a node package, there are several loggers are available, in which log4js is one of them

log4js.json

{
    "appenders": {
    "console" : {
        "type": "console",
        "category": "console"
    },
    
    "file" : {
        "category": "test-file-appender",
        "type": "file",
        "filename": "log_file.log",
        "maxLogSize": 10240,
        "backups": 3,
        "pattern": "%d{dd/MM hh:mm} %-5p %m"
    }
    },
    "categories": {
        "default" :{"appenders": ["console", "file"], "level": "DEBUG"},
        "file" : {"appenders": ["file"], "level": "DEBUG"}
    }
}

log4jsconfig.ts

export class log4jsconfig{

    static Log(): any {
        var log4js = require('log4js');
        log4js.configure('./config/log4js.json');
        //var logger = log4js.getLogger(); //for both console and file
        let log = log4js.getLogger("default");
        return log;
    }
}

test script

import { browser, element, by } from "protractor";
import { log4jsconfig } from '../config/log4jsconfig'

describe("Calculator test", function(){

    beforeEach(function(){
        browser.get("https://juliemr.github.io/protractor-demo/");
    })

    it("Launch url check", function(){
        expect(browser.getTitle()).toContain("Super");
        //console.log("Browser Title :-" + browser.getTitle());
        let browserTitle = browser.getTitle();

        browserTitle.then(function(txt){
            console.log("Browser Title :-" + txt);
            log4jsconfig.Log().debug("Browser Title :- " + txt);
        });

    })

    it("Add 2 numbers", function(){
        element(by.model("first")).sendKeys("12");
        element(by.model("second")).sendKeys("13");
        element(by.id("gobutton")).click();
        browser.sleep(3000);
        expect<any>(element(by.xpath("//table/tbody/tr[1]/td[3]")).getText()).toEqual('25');
    })

})