PHPUnit\Framework\SkippedTestError: <no message>

データプロバイダのdataが[]のとき、タイトルのようなエラーが発生する

    /**
     * Returns the provided data for a method.
     *
     * @throws Exception
     */
    public function getProvidedData(): ?array
    {
        /** @noinspection SuspiciousBinaryOperationInspection */
        $data = $this->getDataFromDataProviderAnnotation($this->docComment) ?? $this->getDataFromTestWithAnnotation($this->docComment);

        if ($data === null) {
            return null;
        }

        if ($data === []) {
            throw new SkippedTestError;
        }