Merge pull request iovisor#4167 from davemarchevsky/davemarchevsky_fi…

…x_bpf_table_test

test_bpf_table: Re-add deletion of 'bpf' module

tests/cc/test_bpf_table.cc

@@ -26,13 +26,13 @@ TEST_CASE("test bpf table", ebpf::bpf_module_rw_engine_enabled() ? "[bpf_table]"
  BPF_TABLE("hash", int, int, myhash, 128);
  )";
 
- ebpf::BPF bpf;
+ auto bpf = std::make_unique<ebpf::BPF>();
  ebpf::StatusTuple res(0);
  std::vector<std::pair<std::string, std::string>> elements;
- res = bpf.init(BPF_PROGRAM);
+ res = bpf->init(BPF_PROGRAM);
  REQUIRE(res.ok());
 
- ebpf::BPFTable t = bpf.get_table("myhash");
+ ebpf::BPFTable t = bpf->get_table("myhash");
 
  // update element
  std::string value;
@@ -78,7 +78,8 @@ TEST_CASE("test bpf table", ebpf::bpf_module_rw_engine_enabled() ? "[bpf_table]"
  REQUIRE(res.ok());
  REQUIRE(elements.size() == 0);
 
-
+ // delete bpf_module, call to key/leaf printf/scanf must fail
+ bpf.reset();
 
  res = t.update_value("0x07", "0x42");
  REQUIRE(!res.ok());