input-format/modules/templateFormatter.test.js

Formatting user's text input on-the-fly

import { expect } from 'chai';
import template_formatter from './templateFormatter.js';
describe('templateFormatter', function () {
  it('should format a phone number', function () {
    var formatter = template_formatter('x (xxx) xxx-xx-xx');
    expect(formatter('').template).to.equal('x (xxx) xxx-xx-xx');
    expect(formatter('8').text).to.equal('8');
    expect(formatter('88').text).to.equal('8 (8');
    expect(formatter('880').text).to.equal('8 (80');
    expect(formatter('8800').text).to.equal('8 (800');
    expect(formatter('88005').text).to.equal('8 (800) 5');
    expect(formatter('880055').text).to.equal('8 (800) 55');
    expect(formatter('8800555').text).to.equal('8 (800) 555');
    expect(formatter('88005553').text).to.equal('8 (800) 555-3');
    expect(formatter('880055535').text).to.equal('8 (800) 555-35');
    expect(formatter('8800555353').text).to.equal('8 (800) 555-35-3');
    expect(formatter('88005553535').text).to.equal('8 (800) 555-35-35');
  });
  it('should format for edge case templates', function () {
    var formatter = template_formatter('(x x x)');
    expect(formatter('').text).to.equal('');
    expect(formatter('0').text).to.equal('(0');
    expect(formatter('00').text).to.equal('(0 0');
    expect(formatter('000').text).to.equal('(0 0 0)'); // More than the template can handle

    expect(formatter('0000').text).to.equal('(0 0 0)');
  });
  it('should default to "x" placeholder', function () {
    var formatter = template_formatter('A (AAA) AAA-AA-AA');
    expect(formatter('88005553535').text).to.equal('A (AAA) AAA-AA-AA');
  });
  it('should accept custom placeholder', function () {
    var formatter = template_formatter('A (AAA) AAA-AA-AA', 'A');
    expect(formatter('88005553535').text).to.equal('8 (800) 555-35-35');
  });
  it('should skip formatting when given no template', function () {
    var formatter = template_formatter();
    expect(formatter('88005553535').text).to.equal('88005553535');
  });
  it('should close braces', function () {
    var formatter = template_formatter('x (xxx) xxx-xx-xx', 'x', true);
    expect(formatter('88').text).to.equal('8 (8  )');
  });
});
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