commit 54494bd0d003c49841334fc16c52b79c4be42fcb
author Dominik Laskowski <domlaskowski@google.com> Tue Aug 02 13:37:14 2022 -0700
committer Dominik Laskowski <domlaskowski@google.com> Fri Aug 19 11:13:29 2022 -0700
tree 2c51c441983826a61492a812567be7e4647d0949
parent a7e22553cfee75447d9e3a4337f5ccc0baba5d16

FTL: Generalize SmallMap lookup transformer

Bug: 185536303
Test: ftl_test
Change-Id: Idde9d842a4404095e839fbdbfca1ded416d95263

libs/ftl/optional_test.cpp

diff --git a/libs/ftl/optional_test.cpp b/libs/ftl/optional_test.cpp
index 6a8c8f9..ede159a 100644
--- a/libs/ftl/optional_test.cpp
+++ b/libs/ftl/optional_test.cpp
@@ -17,6 +17,7 @@
 #include <ftl/optional.h>
 #include <ftl/static_vector.h>
 #include <ftl/string.h>
+#include <ftl/unit.h>
 #include <gtest/gtest.h>
 
 #include <functional>
@@ -62,6 +63,13 @@
     EXPECT_EQ(out, "abc"s);
   }
 
+  // No return value.
+  {
+    Optional opt = "food"s;
+    EXPECT_EQ(ftl::unit, opt.transform(ftl::unit_fn([](std::string& str) { str.pop_back(); })));
+    EXPECT_EQ(opt, "foo"s);
+  }
+
   // Chaining.
   EXPECT_EQ(14u, Optional(StaticVector{"upside"s, "down"s})
                      .transform([](StaticVector<std::string, 3>&& v) {