don't set limits for the bpfadapter in test mode

Summary: by default the BpfAdapter would try to set locked memory rlimit value to unlimited. It is not necessary for the local test, and it can break the unit tests to, due to insufficient privileges. emoving this requirement for the local test. If required, the limits should be adjusted before the test execution.

Reviewed By: lalitg845

Differential Revision: D48422026

fbshipit-source-id: f34ec1749e3178d39eb75c6f98f30fa3ab61c7f3

katran/lib/testing/BpfTester.cpp

@@ -50,7 +50,9 @@ constexpr uint32_t kNanosecInSec = 1000000000;
 } // namespace
 
 BpfTester::BpfTester(const TesterConfig& config)
-    : config_(config), parser_(config.inputFileName, config.outputFileName) {}
+    : config_(config),
+      parser_(config.inputFileName, config.outputFileName),
+      adapter_(false /* set_limits */) {}
 
 void BpfTester::printPcktBase64() {
   if (config_.inputFileName.empty()) {