1 files changed, 73 insertions, 4 deletions
diff --git a/libs/kstd/tests/src/vector.cpp b/libs/kstd/tests/src/vector.cpp
index edf47d7..a02ebf0 100644
--- a/libs/kstd/tests/src/vector.cpp
+++ b/libs/kstd/tests/src/vector.cpp
@@ -522,16 +522,77 @@ SCENARIO("Vector modifiers", "[vector]")
       auto const range = std::views::iota(0, 3);
       v.append_range(range);
 
-      THEN("the size and capacity increase and the elements are appended")
+      THEN("the size increases")
       {
         REQUIRE(v.size() == 3);
+      }
+
+      THEN("the capacity increases")
+      {
         REQUIRE(v.capacity() >= 3);
+      }
+
+      THEN("the elements are appended")
+      {
         REQUIRE(v[0] == 0);
         REQUIRE(v[1] == 1);
         REQUIRE(v[2] == 2);
       }
     }
 
+    WHEN("appending from an input range")
+    {
+      auto const arr = std::array<int, 3>{1, 2, 3};
+      auto const first = kstd::tests::test_input_iterator{arr.data(), arr.size()};
+      auto const last = kstd::tests::test_input_iterator{};
+
+      v.append_range(std::ranges::subrange{first, last});
+
+      THEN("the size increases")
+      {
+        REQUIRE(v.size() == 3);
+      }
+
+      THEN("the capacity increases")
+      {
+        REQUIRE(v.capacity() >= 3);
+      }
+
+      THEN("the elements are appended")
+      {
+        REQUIRE(v[0] == 1);
+        REQUIRE(v[1] == 2);
+        REQUIRE(v[2] == 3);
+      }
+    }
+
+    WHEN("appending from an input range with sufficient capacity")
+    {
+      v.reserve(3);
+      auto const arr = std::array<int, 3>{1, 2, 3};
+      auto const first = kstd::tests::test_input_iterator{arr.data(), arr.size()};
+      auto const last = kstd::tests::test_input_iterator{};
+
+      v.append_range(std::ranges::subrange{first, last});
+
+      THEN("the size increases")
+      {
+        REQUIRE(v.size() == 3);
+      }
+
+      THEN("the capacity stays the same")
+      {
+        REQUIRE(v.capacity() == 3);
+      }
+
+      THEN("the elements are appended")
+      {
+        REQUIRE(v[0] == 1);
+        REQUIRE(v[1] == 2);
+        REQUIRE(v[2] == 3);
+      }
+    }
+
     WHEN("resizing the vector to a greater size")
     {
       v.resize(3);
@@ -881,10 +942,18 @@ SCENARIO("Vector modifiers", "[vector]")
       auto initial_size = v.size();
       v.append_range(std::views::iota(0, 3));
 
-      THEN("capacity and size are increased and the elements are appended")
+      THEN("capacity is increased")
       {
         REQUIRE(v.capacity() >= initial_capacity);
+      }
+
+      THEN("size is increased")
+      {
         REQUIRE(v.size() == initial_size + 3);
+      }
+
+      THEN("the elements are appended")
+      {
         REQUIRE(v[initial_size + 0] == 0);
         REQUIRE(v[initial_size + 1] == 1);
         REQUIRE(v[initial_size + 2] == 2);
@@ -1290,8 +1359,8 @@ SCENARIO("Vector advanced construction", "[vector]")
     WHEN("constructing from input iterators")
     {
       auto const arr = std::array<int, 3>{1, 2, 3};
-      auto const first = kstd::tests::test_input_iterator{arr.data()};
-      auto const last = kstd::tests::test_input_iterator{arr.data() + arr.size()};
+      auto const first = kstd::tests::test_input_iterator{arr.data(), arr.size()};
+      auto const last = kstd::tests::test_input_iterator{};
 
       auto v = kstd::vector<int>(first, last);