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Validate the level option

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Fixes #248
This commit is contained in:
Sindre Sorhus 2018-09-18 15:33:20 +07:00
parent 0307f263cb
commit 2a678789b1
2 changed files with 16 additions and 2 deletions
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12
test/constructor.js
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@ -20,3 +20,15 @@ test('create an isolated context where colors can be disabled (by enabled flag)'
instance.enabled = true;
t.is(instance.red('foo'), '\u001B[31mfoo\u001B[39m');
});
test('the `level` option should be a number from 0 to 3', t => {
/* eslint-disable no-new */
t.throws(() => {
new chalk.constructor({level: 10});
}, /should be an integer from 0 to 3/);
t.throws(() => {
new chalk.constructor({level: -1});
}, /should be an integer from 0 to 3/);
/* eslint-enable no-new */
});