karma-runner/karma

add an option to clear console when using autoWatch:true

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#1,004 opened on Apr 4, 2014

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discusshelp wantedtype: backlogtype: feature

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Description

This is based on http://stackoverflow.com/questions/22824255/karma-clear-screen-after-running-tests.

Simply adding this in watcher.js at line 91, makes this work (at least on windows). All that is left to do is add the options to the config and pass them to watcher.

var util = require('util');
util.print("\u001b[2J\u001b[0;0H");

Is this something we want to add? I think it's useful.

Maybe we should instead support a beforeRun script that people could use to do that instead.

A workaround is to create a clear-screen-reporter that just overrides this.onRunStart and does

this.onRunStart = function() {
   console.log("\u001b[2J\u001b[0;0H");
};

Contributor guide

Research direction
Add a new config option (e.g., clearConsole) to karma config. In watcher.js, before the run, check if the option is true and print ANSI escape codes to clear the console. Ensure cross platform compatibility (e.g., use ). Also consider adding as a beforeRun hook or plugin.
Tech stack
javascript
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Node.jsGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60