[GitHub] [nifi-minifi-cpp] szaszm commented on a diff in pull request #1659: MINIFICPP-2218 Refactor expected monadic functions

[via GitHub]

szaszm commented on code in PR #1659:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1659#discussion_r1330273703


##########
libminifi/test/unit/ExpectedTest.cpp:
##########
@@ -153,124 +153,124 @@ TEST_CASE("expected map", "[expected][map]") {
   // mapping functions which return references
   {
     nonstd::expected<int, int> e(42);
-    auto ret = e | utils::map([](int& i) -> int& { return i; });
+    auto ret = e | utils::transform([](int& i) -> int& { return i; });
     REQUIRE(ret);
     REQUIRE(ret == 42);
   }
 }
 
-TEST_CASE("expected flatMap", "[expected][flatMap]") {
+TEST_CASE("expected andThen", "[expected][andThen]") {
   auto succeed = [](int) { return nonstd::expected<int, int>(21 * 2); };
   auto fail = [](int) { return nonstd::expected<int, int>(nonstd::unexpect, 
17); };
 
   {
     nonstd::expected<int, int> e = 21;
-    auto ret = e | utils::flatMap(succeed);
+    auto ret = e | utils::andThen(succeed);
     REQUIRE(ret);
     REQUIRE(*ret == 42);
   }
 
   {
     const nonstd::expected<int, int> e = 21;
-    auto ret = e | utils::flatMap(succeed);
+    auto ret = e | utils::andThen(succeed);
     REQUIRE(ret);
     REQUIRE(*ret == 42);
   }
 
   {
     nonstd::expected<int, int> e = 21;
-    auto ret = std::move(e) | utils::flatMap(succeed);
+    auto ret = std::move(e) | utils::andThen(succeed);
     REQUIRE(ret);
     REQUIRE(*ret == 42);
   }
 
   {
     const nonstd::expected<int, int> e = 21;
-    auto ret = std::move(e) | utils::flatMap(succeed);  // 
NOLINT(performance-move-const-arg)
+    auto ret = std::move(e) | utils::andThen(succeed);  // 
NOLINT(performance-move-const-arg)
     REQUIRE(ret);
     REQUIRE(*ret == 42);
   }
 
   {
     nonstd::expected<int, int> e = 21;
-    auto ret = e | utils::flatMap(fail);
+    auto ret = e | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 17);
   }
 
   {
     const nonstd::expected<int, int> e = 21;
-    auto ret = e | utils::flatMap(fail);
+    auto ret = e | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 17);
   }
 
   {
     nonstd::expected<int, int> e = 21;
-    auto ret = std::move(e) | utils::flatMap(fail);
+    auto ret = std::move(e) | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 17);
   }
 
   {
     const nonstd::expected<int, int> e = 21;
-    auto ret = std::move(e) | utils::flatMap(fail);  // 
NOLINT(performance-move-const-arg)
+    auto ret = std::move(e) | utils::andThen(fail);  // 
NOLINT(performance-move-const-arg)
     REQUIRE(!ret);
     REQUIRE(ret.error() == 17);
   }
 
   {
     nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = e | utils::flatMap(succeed);
+    auto ret = e | utils::andThen(succeed);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     const nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = e | utils::flatMap(succeed);
+    auto ret = e | utils::andThen(succeed);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = std::move(e) | utils::flatMap(succeed);
+    auto ret = std::move(e) | utils::andThen(succeed);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     const nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = std::move(e) | utils::flatMap(succeed);  // 
NOLINT(performance-move-const-arg)
+    auto ret = std::move(e) | utils::andThen(succeed);  // 
NOLINT(performance-move-const-arg)
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = e | utils::flatMap(fail);
+    auto ret = e | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     const nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = e | utils::flatMap(fail);
+    auto ret = e | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = std::move(e) | utils::flatMap(fail);
+    auto ret = std::move(e) | utils::andThen(fail);
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }
 
   {
     const nonstd::expected<int, int> e(nonstd::unexpect, 21);
-    auto ret = std::move(e) | utils::flatMap(fail);  // 
NOLINT(performance-move-const-arg)
+    auto ret = std::move(e) | utils::andThen(fail);  // 
NOLINT(performance-move-const-arg)
     REQUIRE(!ret);
     REQUIRE(ret.error() == 21);
   }

Review Comment:
   Thanks for pointing this out, reenabled them in 
[47aede1](https://github.com/apache/nifi-minifi-cpp/pull/1659/commits/47aede10d43a4b9e0c0b27b67dda824bd5748096)



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