private String filterStringVmTrace(final String expectedResult) {
    final Matcher m = GAS_MATCH_FOR_VM_TRACE.matcher(expectedResult);
    return m.replaceAll("");
  }
Searches the provided subdirectories for spec files containing test cases, and returns
parameters required to run these tests.

@param subDirectoryPaths The subdirectories to search.
@return Parameters for this test which will contain the name of the test and the url of the
    spec file to run.
ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/AbstractJsonRpcHttpBySpecTest.java