text: import {colorHalftone, normalizeShaderModule} from '@luma.gl/shadertools';
  import test from 'tape-catch';
  
  test('colorHalftone#build/uniform', t => {
    normalizeShaderModule(colorHalftone);
    const uniforms = colorHalftone.getUniforms();
  
    t.ok(uniforms, 'colorHalftone module build is ok');
    t.deepEqual(uniforms.center, [0.5, 0.5], 'colorHalftone center uniform is ok');
    t.equal(uniforms.angle, 1.1, 'colorHalftone angle uniform is ok');
    t.equal(uniforms.size, 4, 'colorHalftone size uniform is ok');
    t.end();
  });
  