ionic-framework/core/src/utils/test/theme.spec.ts

import { getClassList, getClassMap } from '../theme';

describe('getClassList()', () => {
  it('should parse string', () => {
    expect(getClassList(' class class-event     THEME-ios-bar-button')).toEqual([
      'class', 'class-event', 'THEME-ios-bar-button'
    ]);
    expect(getClassList('')).toEqual([]);
    expect(getClassList('  ')).toEqual([]);
  });

  it('should pass array', () => {
    expect(getClassList([
      'class', 'class-event', 'THEME-ios-bar-button'
    ])).toEqual([
      'class', 'class-event', 'THEME-ios-bar-button'
    ]);
    expect(getClassList([
      'class   ', '   class-event', '  THEME-ios-bar-button  '
    ])).toEqual([
      'class', 'class-event', 'THEME-ios-bar-button'
    ]);

    expect(getClassList([
      'class   ', null, undefined, '', '   class-event', '  ', '  THEME-ios-bar-button  '
    ] as any)).toEqual([
      'class', 'class-event', 'THEME-ios-bar-button'
    ]);
  });
});

describe('getClassMap()', () => {
  it('should parse string', () => {
    expect(getClassMap(' class class-event     THEME-ios-bar-button')).toEqual({
      class: true,
      'class-event': true,
      'THEME-ios-bar-button': true,
    });
    expect(getClassMap('')).toEqual({});
    expect(getClassMap('  ')).toEqual({});
  });

  it('should pass array', () => {
    expect(getClassMap([
      'class', 'class-event', 'THEME-ios-bar-button'
    ])).toEqual({
      'class': true, 'class-event': true, 'THEME-ios-bar-button': true
    });

    expect(getClassMap([
      'class   ', '   class-event', '  THEME-ios-bar-button  '
    ])).toEqual({
      'class': true, 'class-event': true, 'THEME-ios-bar-button': true
    });

    expect(getClassMap([
      'class   ', null, undefined, '', '   class-event', '  ', '  THEME-ios-bar-button  '
    ] as any)).toEqual({
      'class': true, 'class-event': true, 'THEME-ios-bar-button': true
    });
  });
});