Function assertFailure

nodejs/test/e2e/client_api.e2e.test.ts:21–30

(
        action: () => Promise<unknown>,
        expectedMessage: string
    )

    }

    async function assertFailure(
        action: () => Promise<unknown>,
        expectedMessage: string
    ): Promise<void> {
        await expect(action()).rejects.toSatisfy((err: unknown) => {
            const text = err instanceof Error ? `${err.message}\n${err.stack ?? ""}` : String(err);
            expect(text.toLowerCase()).toContain(expectedMessage.toLowerCase());
            return true;
        });
    }

    it("should get null last session id before any sessions exist", async () => {
        await client.start();