kstd/vector: add missing emplace test

1 files changed, 20 insertions, 0 deletions

diff --git a/libs/kstd/tests/src/vector.cpp b/libs/kstd/tests/src/vector.cpp
index fd44437..4fb3559 100644
--- a/libs/kstd/tests/src/vector.cpp
+++ b/libs/kstd/tests/src/vector.cpp
@@ -761,6 +761,26 @@ SCENARIO("Vector modifiers", "[vector]")
       }
     }
 
+    WHEN("emplace is called with an iterator and sufficient capacity")
+    {
+      v.reserve(v.size() + 1);
+
+      auto it = v.emplace(v.begin() + 2, 25);
+
+      THEN("the element is inserted and the size and capacity increase")
+      {
+        REQUIRE(v.size() == 4);
+        REQUIRE(v.capacity() >= initial_capacity);
+        REQUIRE(v.at(2) == 25);
+      }
+
+      THEN("the returned iterator points to the inserted element")
+      {
+        REQUIRE(it == v.cbegin() + 2);
+        REQUIRE(*it == 25);
+      }
+    }
+
     WHEN("push_back is called with a reference to an internal element")
     {
       v.shrink_to_fit();