#2166: Add test for lastNamedPfType

tests/unit/utils/test_demangler_utils.nompi.cc

@@ -48,7 +48,18 @@
 
 namespace vt { namespace tests { namespace unit {
 
-struct TestDemanglerUtils : TestHarness { };
+struct TestDemanglerUtils : TestHarness {
+
+  template<typename T1>
+  std::string func_1(T1) {
+    return __PRETTY_FUNCTION__;
+  }
+
+  template<typename T1, typename T2>
+  std::string func_2(T1, T2){
+    return __PRETTY_FUNCTION__;
+  }
+};
 
 using TE = vt::util::demangle::TemplateExtract;
 
@@ -103,4 +114,30 @@ TEST_F(TestDemanglerUtils, test_getBarename) {
   }
 }
 
+TEST_F(TestDemanglerUtils, test_lastNamedPfType) {
+  std::vector<std::tuple<std::string, std::string, std::string>> data;
+  data.emplace_back("", "", "");
+  data.emplace_back(__PRETTY_FUNCTION__, "", "");
+  data.emplace_back(func_1(1.0), "IncorrectName", "");
+
+  data.emplace_back(func_1(100), "T1", "int");
+  data.emplace_back(func_1("abc"), "T1", "const char *");
+  data.emplace_back(func_1(nullptr), "T1", "std::nullptr_t");
+
+  data.emplace_back(func_2(100, 10.0), "T2", "double");
+  data.emplace_back(func_2("abc", std::string("abc")), "T2", "std::string");
+  data.emplace_back(func_2(nullptr, nullptr), "T2", "std::nullptr_t");
+
+  auto lambda = [] (auto aa, auto bb) { return __PRETTY_FUNCTION__; };
+  data.emplace_back(lambda(10, 20), "bb:auto", "int");
+  data.emplace_back(lambda("", nullptr), "bb:auto", "std::nullptr_t");
+
+  for (auto& t : data) {
+    std::string& spf = std::get<0>(t);
+    std::string& tparam = std::get<1>(t);
+    std::string& expected = std::get<2>(t);
+    EXPECT_EQ(TE::lastNamedPfType(spf, tparam), expected);
+  }
+}
+
 }}} /* end namespace vt::tests::unit */