mimik/tests/TintSpec.js

Write end-to-end automation tests in natural language

'use strict';
var expect = require("chai").expect;
var tint = require('../lib/tint');
var proc = {
    env: {
        TERM: 'screen'
    },
    stdout: {
        isTTY: true
    }
};

before(function() {
    tint.setProc(proc);
});

describe('tint', function() {
    it('should style string', function() {
        expect(tint.underline('foo')).to.equal('\x1B[4mfoo\x1B[24m');
        expect(tint.red('foo')).to.equal('\x1B[31mfoo\x1B[39m');
        expect(tint.bgRed('foo')).to.equal('\x1B[41mfoo\x1B[49m');
    });

    it('should support nesting styles', function() {
        expect(
        tint.red('foo' + tint.underline('bar') + '!')).to.equal('\x1B[31mfoo\x1B[4mbar\x1B[24m!\x1B[39m');
    });

    it('should support nesting styles of the same type (color, underline, bg)', function() {
        expect(
        tint.red('a' + tint.blue('b' + tint.green('c') + 'b') + 'c')).to.equal('\x1B[31ma\x1B[34mb\x1B[32mc\x1B[34mb\x1B[31mc\x1B[39m');
    });

    it('should reset all styles with `.reset()`', function() {
        expect(tint.reset(tint.red('foo') + 'foo')).to.equal('\x1B[0m\x1B[31mfoo\x1B[39mfoo\x1B[0m');
    });

    it('should alias gray to grey', function() {
        expect(tint.grey('foo')).to.equal('\x1B[90mfoo\x1B[39m');
    });

    it('should support falsy values', function() {
        expect(tint.red(0)).to.equal('\x1B[31m0\x1B[39m');
    });

    it('don\'t output escape codes if the input is empty', function() {
        expect(tint.red()).to.equal('');
    });
});

describe('tint.disable()', function() {
    it('should not output colors when manually disabled', function() {
        tint.disable();
        expect(tint.red('foo')).to.equal('foo');
        tint.enable();
    });
});

describe('tint.styles', function() {
    it('should expose the styles as ANSI escape codes', function() {
        expect(tint.styles.red._open).to.equal('\x1B[31m');
    });
});

describe('tint terminal color support', function() {
    it('should detect terminal support for colors', function() {
        expect(tint.canColor()).to.be.true;
        proc.stdout.isTTY = false;
        expect(tint.canColor()).to.be.false;
        proc.stdout.isTTY = true;
        proc.env.TERM = 'fake';
        expect(tint.canColor()).to.be.false;
        proc.env.COLORTERM = true;
        expect(tint.canColor()).to.be.true;
        proc.platform = 'win32';
        expect(tint.canColor()).to.be.true;
        
    });
});