testParameters

testParameters.set(id: string, value: number | boolean | string): void;

Sets the parameter id (declared in the config) to value, as the host's automation would: subscribers hear it, and components using useParameter re-render.

beforeEach(() => {
  testParameters.set('gain', 0.75);
});

test('shows the gain', async () => {
  await render(<App />);
  expect(screen.getByText('0.75')).toBeDefined();
});

Good to knowCopy Anchor Link

• Checked like the real thing: an unknown id or a value of the wrong type throws; numbers are clamped to the range, ints rounded.
• Read with soundor:parameters: parameters.gain.get(), in the test, is the value the plugin has.
• Per test: values start from their defaults in every test. Set them in the test or beforeEach, never in beforeAll.