Add chalk.stderr (#359)

test/_fixture.js

@@ -1,4 +1,4 @@
 'use strict';
 const chalk = require('../source');
 
-console.log(chalk.hex('#ff6159')('test'));
+console.log(`${chalk.hex('#ff6159')('testout')} ${chalk.stderr.hex('#ff6159')('testerr')}`);

test/_supports-color.js

@@ -7,6 +7,12 @@ const DEFAULT = {
 		hasBasic: true,
 		has256: true,
 		has16m: true
+	},
+	stderr: {
+		level: 3,
+		hasBasic: true,
+		has256: true,
+		has16m: true
 	}
 };
 

test/chalk.js

@@ -105,3 +105,8 @@ test('don\'t emit RGB codes if level is 0', t => {
 test('supports blackBright color', t => {
 	t.is(chalk.blackBright('foo'), '\u001B[90mfoo\u001B[39m');
 });
+
+test('sets correct level for chalk.stderr and respects it', t => {
+	t.is(chalk.stderr.level, 3);
+	t.is(chalk.stderr.red.bold('foo'), '\u001B[31m\u001B[1mfoo\u001B[22m\u001B[39m');
+});

test/level.js

@@ -41,5 +41,5 @@ test('propagate enable/disable changes from child colors', t => {
 
 test('disable colors if they are not supported', async t => {
 	const {stdout} = await execa.node(path.join(__dirname, '_fixture'));
-	t.is(stdout, 'test');
+	t.is(stdout, 'testout testerr');
 });

test/no-color-support.js

@@ -2,10 +2,18 @@ import test from 'ava';
 
 // Spoof supports-color
 require('./_supports-color')(__dirname, {
-	level: 0,
-	hasBasic: false,
-	has256: false,
-	has16m: false
+	stdout: {
+		level: 0,
+		hasBasic: false,
+		has256: false,
+		has16m: false
+	},
+	stderr: {
+		level: 0,
+		hasBasic: false,
+		has256: false,
+		has16m: false
+	}
 });
 
 const chalk = require('../source');