text: /**
   * @fileoverview functions for ensuring document policy report is serializable
   */
  
  const check_report_json = (report) => {
    // Ensures toJSON method exists on report.
    assert_equals(typeof report.toJSON, "function");
    const report_json = report.toJSON();
    // Ensures toJSON() call is successful.
    assert_equals(report.type, report_json.type);
    assert_equals(report.url, report_json.url);
    assert_equals(report.body.featureId, report_json.body.featureId);
    assert_equals(report.body.disposition, report_json.body.disposition);
    assert_equals(report.body.sourceFile, report_json.body.sourceFile);
    assert_equals(report.body.lineNumber, report_json.body.lineNumber);
    assert_equals(report.body.columnNumber, report_json.body.columnNumber);
    // Ensures JSON.stringify() serializes the report correctly.
    assert_false(JSON.stringify(report) === "{}");
    assert_equals(JSON.stringify(report), JSON.stringify(report_json));
  }