Move testing to ava (#182)

test/chalk.js

@@ -0,0 +1,96 @@
+import test from 'ava';
+
+// Spoof supports-color
+require('./_supports-color')(__dirname);
+
+const m = require('..');
+
+console.log('TERM:', process.env.TERM || '[none]');
+console.log('platform:', process.platform || '[unknown]');
+
+test('don\'t add any styling when called as the base function', t => {
+	t.is(m('foo'), 'foo');
+});
+
+test('style string', t => {
+	t.is(m.underline('foo'), '\u001B[4mfoo\u001B[24m');
+	t.is(m.red('foo'), '\u001B[31mfoo\u001B[39m');
+	t.is(m.bgRed('foo'), '\u001B[41mfoo\u001B[49m');
+});
+
+test('support applying multiple styles at once', t => {
+	t.is(m.red.bgGreen.underline('foo'), '\u001B[31m\u001B[42m\u001B[4mfoo\u001B[24m\u001B[49m\u001B[39m');
+	t.is(m.underline.red.bgGreen('foo'), '\u001B[4m\u001B[31m\u001B[42mfoo\u001B[49m\u001B[39m\u001B[24m');
+});
+
+test('support nesting styles', t => {
+	t.is(
+		m.red('foo' + m.underline.bgBlue('bar') + '!'),
+		'\u001B[31mfoo\u001B[4m\u001B[44mbar\u001B[49m\u001B[24m!\u001B[39m'
+	);
+});
+
+test('support nesting styles of the same type (color, underline, bg)', t => {
+	t.is(
+		m.red('a' + m.yellow('b' + m.green('c') + 'b') + 'c'),
+		'\u001B[31ma\u001B[33mb\u001B[32mc\u001B[33mb\u001B[31mc\u001B[39m'
+	);
+});
+
+test('reset all styles with `.reset()`', t => {
+	t.is(m.reset(m.red.bgGreen.underline('foo') + 'foo'), '\u001B[0m\u001B[31m\u001B[42m\u001B[4mfoo\u001B[24m\u001B[49m\u001B[39mfoo\u001B[0m');
+});
+
+test('support caching multiple styles', t => {
+	const red = m.red;
+	const green = m.green;
+	const redBold = red.bold;
+	const greenBold = green.bold;
+
+	t.not(red('foo'), green('foo'));
+	t.not(redBold('bar'), greenBold('bar'));
+	t.not(green('baz'), greenBold('baz'));
+});
+
+test('alias gray to grey', t => {
+	t.is(m.grey('foo'), '\u001B[90mfoo\u001B[39m');
+});
+
+test('support variable number of arguments', t => {
+	t.is(m.red('foo', 'bar'), '\u001B[31mfoo bar\u001B[39m');
+});
+
+test('support falsy values', t => {
+	t.is(m.red(0), '\u001B[31m0\u001B[39m');
+});
+
+test('don\'t output escape codes if the input is empty', t => {
+	t.is(m.red(), '');
+	t.is(m.red.blue.black(), '');
+});
+
+test('keep Function.prototype methods', t => {
+	t.is(m.grey.apply(null, ['foo']), '\u001B[90mfoo\u001B[39m');
+	t.is(m.reset(m.red.bgGreen.underline.bind(null)('foo') + 'foo'), '\u001B[0m\u001B[31m\u001B[42m\u001B[4mfoo\u001B[24m\u001B[49m\u001B[39mfoo\u001B[0m');
+	t.is(m.red.blue.black.call(null), '');
+});
+
+test('line breaks should open and close colors', t => {
+	t.is(m.grey('hello\nworld'), '\u001B[90mhello\u001B[39m\n\u001B[90mworld\u001B[39m');
+});
+
+test('properly convert RGB to 16 colors on basic color terminals', t => {
+	t.is(new m.constructor({level: 1}).hex('#FF0000')('hello'), '\u001B[91mhello\u001B[39m');
+	t.is(new m.constructor({level: 1}).bgHex('#FF0000')('hello'), '\u001B[101mhello\u001B[49m');
+});
+
+test('properly convert RGB to 256 colors on basic color terminals', t => {
+	t.is(new m.constructor({level: 2}).hex('#FF0000')('hello'), '\u001B[38;5;196mhello\u001B[39m');
+	t.is(new m.constructor({level: 2}).bgHex('#FF0000')('hello'), '\u001B[48;5;196mhello\u001B[49m');
+	t.is(new m.constructor({level: 3}).bgHex('#FF0000')('hello'), '\u001B[48;2;255;0;0mhello\u001B[49m');
+});
+
+test('don\'t emit RGB codes if level is 0', t => {
+	t.is(new m.constructor({level: 0}).hex('#FF0000')('hello'), 'hello');
+	t.is(new m.constructor({level: 0}).bgHex('#FF0000')('hello'), 'hello');
+});