test extension enums9ms ‣
const {gl} = createContext();
const ext = gl.getExtension('OES_standard_derivatives');
if (!ext) {
throw new Error('FRAGMENT_SHADER_DERIVATIVE_HINT_OES');
}
assertThrowsWith(() => {
gl.enable(ext.FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
}, [/FRAGMENT_SHADER_DERIVATIVE_HINT_OES/]);