From 2f4591dbb173d602368437e1dd8c788b0bedd4aa Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Tue, 14 Apr 2026 13:23:52 +0200
Subject: kstd: add basic flat_map::try_insert

---
 libs/kstd/tests/src/vector.cpp | 45 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'libs/kstd/tests/src')

diff --git a/libs/kstd/tests/src/vector.cpp b/libs/kstd/tests/src/vector.cpp
index 81bf32f..5faaaff 100644
--- a/libs/kstd/tests/src/vector.cpp
+++ b/libs/kstd/tests/src/vector.cpp
@@ -463,6 +463,33 @@ SCENARIO("Vector modifiers", "[vector]")
       }
     }
 
+    WHEN("emplace is called with the end iterator and constructor arguments")
+    {
+      v.emplace(v.end(), 20);
+
+      THEN("the element is appended and the size and capacity increase")
+      {
+        REQUIRE(v.size() == 1);
+        REQUIRE(v.capacity() >= 1);
+        REQUIRE(v.back() == 20);
+      }
+    }
+
+    WHEN("emplace is called while capacity is sufficient")
+    {
+      v.reserve(10);
+      auto const capacity = v.capacity();
+
+      v.emplace(v.end(), 20);
+
+      THEN("the element is appended without reallocation")
+      {
+        REQUIRE(v.size() == 1);
+        REQUIRE(v.capacity() == capacity);
+        REQUIRE(v.back() == 20);
+      }
+    }
+
     WHEN("inserting an element")
     {
       auto it = v.insert(v.cbegin(), 42);
@@ -526,6 +553,24 @@ SCENARIO("Vector modifiers", "[vector]")
       }
     }
 
+    WHEN("emplace is called with an iterator and constructor arguments")
+    {
+      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();
-- 
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