Add optional stream argument to render to

index.js

@@ -43,7 +43,8 @@ class VerboseRenderer {
 	constructor(tasks, options) {
 		this._tasks = tasks;
 		this._options = Object.assign({
-			dateFormat: 'HH:mm:ss'
+			dateFormat: 'HH:mm:ss',
+			stream: process.stdout
 		}, options);
 	}
 
@@ -52,12 +53,12 @@ class VerboseRenderer {
 	}
 
 	render() {
-		cliCursor.hide();
+		cliCursor.hide(this._options.stream);
 		render(this._tasks, this._options);
 	}
 
 	end() {
-		cliCursor.show();
+		cliCursor.show(this._options.stream);
 	}
 }
 

lib/utils.js

@@ -3,12 +3,13 @@ const chalk = require('chalk');
 const format = require('date-fns/format');
 
 exports.log = (options, output) => {
+	const logger = new console.Console(options.stream, options.stream);
 	if (options.dateFormat === false) {
-		console.log(output);
+		logger.log(`${output}`);
 		return;
 	}
 
 	const timestamp = format(new Date(), options.dateFormat);
 
-	console.log(chalk.dim(`[${timestamp}]`) + ` ${output}`);
+	logger.log(chalk.dim(`[${timestamp}]`) + ` ${output}`);
 };

readme.md

@@ -44,6 +44,12 @@ Default: `HH:mm:ss`
 
 Format of the rendered timestamp. Use the [date-fns string format](https://date-fns.org/docs/format). If `false` is passed in, the timestamp will be hidden.
 
+### stream
+
+Type: `stream.Writable` <br>
+Default: `process.stdout`
+
+The stream to render to.
 
 ## Related
 

test/fixtures/utils.js

@@ -6,11 +6,14 @@ exports.testOutput = (t, expected) => {
 	t.plan(t._test.planCount || expected.length);
 	let i = 0;
 
-	const promise = hookStd(actual => {
-		t.is(stripAnsi(actual), `${expected[i++]}`);
+	const promise = hookStd.stdout(actual => {
+		const stripped = stripAnsi(actual);
+		if (stripped !== '') {
+			t.is(stripped, `${expected[i++]}`);
 
-		if (i === expected.length) {
-			promise.unhook();
+			if (i === expected.length) {
+				promise.unhook();
+			}
 		}
 	});
 };

test/test.js

@@ -1,8 +1,8 @@
 import {serial as test} from 'ava';
 import Listr from 'listr';
 import format from 'date-fns/format';
-import {testOutput} from './fixtures/utils';
 import renderer from '..';
+import {testOutput} from './fixtures/utils';
 
 const date = format(new Date(), 'dd/MM/yyyy');