public function assertResponseBodyIsAnEmptyJsonArray() {
        $this->requireResponse();

        try {
            Assertion::same(
                [],
                $body = $this->getResponseBodyArray(),
                sprintf('Expected response body to be an empty JSON array, got "%s".', json_encode($body, JSON_PRETTY_PRINT))
            );
        } catch (AssertionFailure $e) {
            throw new AssertionFailedException($e->getMessage());
        }
    }