src/scene/text-bitmap/__tests__/BitmapFontManager.test.ts - dev - githubmirror/pixijs

src/scene/text-bitmap/__tests__/BitmapFontManager.test.ts

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fix: BitmapFontManager getFont emitting TextStyle update event (#11835)

30 янв 2026, 13:29

30 янв 2026, 13:291ef61cf

import { TextStyle } from '../../text/TextStyle';
import { BitmapFontManager } from '../BitmapFontManager';
import { Cache } from '~/assets';

import type { BitmapFont } from '../BitmapFont';

describe('BitmapFontManager', () =>
{
    it('should install a font and be accessible', async () =>
    {
        BitmapFontManager.install('cool-font', {
            fontFamily: 'Arial',
        }, { resolution: 2, chars: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' });

        const bitmapFont = Cache.get<BitmapFont>('cool-font-bitmap');

        expect(bitmapFont).toBeDefined();
    });

    it('should uninstall and remove from Cache if char is empty', () =>
    {
        BitmapFontManager.install('foo', {}, { chars: ' ' });
        expect(Cache.get<BitmapFont>('foo-bitmap')).toBeDefined();

        BitmapFontManager.uninstall('foo');
        expect(Cache.get<BitmapFont>('foo-bitmap')).toBeUndefined();
    });

    it('should uninstall and remove from Cache', () =>
    {
        BitmapFontManager.install('foo', {}, { chars: 'a' });
        expect(Cache.get<BitmapFont>('foo-bitmap')).toBeDefined();

        BitmapFontManager.uninstall('foo');
        expect(Cache.get<BitmapFont>('foo-bitmap')).toBeUndefined();
    });

    it('should return layout for text containing emoji', () =>
    {
        const layout = BitmapFontManager.getLayout('foo👍', new TextStyle());

        expect(layout).toBeDefined();
    });

    it('should measure trailing whitespaces when trimEnd is disabled', () =>
    {
        const layout = BitmapFontManager.getLayout('foo', new TextStyle());
        const layoutTrimmed = BitmapFontManager.getLayout('foo    ', new TextStyle());
        const layoutUntrimmed = BitmapFontManager.getLayout('foo    ', new TextStyle(), false);

        expect(layoutTrimmed.width).toEqual(layout.width);
        expect(layoutUntrimmed.width).toBeGreaterThan(layout.width);
    });
    it('should not emit TextStyle update event when calling getFont', () =>
    {
        const style = new TextStyle({
            fontFamily: 'Arial',
            fontSize: 16,
            stroke: { width: 1, color: 0xff0000 },
        });

        let updateCalled = false;

        style.on('update', () =>
        {
            updateCalled = true;
        });

        BitmapFontManager.getFont('hello', style);

        expect(updateCalled).toBe(false);

        BitmapFontManager.uninstall('Arial');
    });
});