expectOutputAsync

Waits for output to be rendered (by the test renderer) that matches the provided filters.

expectOutputAsync(timeout: number, ...select: OutputSelectFilter[]): Promise<OutputAssertion>

Notes

• This method uses TestRenderer.expectOutputAsync(), refer to its documentation for details.
• This method is asynchronous and must be await-ed.

Parameters

• timeout — Timeout, in milliseconds
• select — A set of output filters to match

Return value

A promise that’s resolved to an OutputAssertion instance for matching output, or rejected when a timeout occurs.

Example

describe("My scope", () => {
  test("Wait for output", async (t) => {
    // ... render output somehow
    await t.expectOutputAsync(100, { type: "button" });
  });
});

Related

• class TestCaseA class that represents a single test case, part of a TestScope.