diff --git a/Test/Uninitialized.cpp b/Test/Uninitialized.cpp
index 0b2fd79..864d57c 100644
--- a/Test/Uninitialized.cpp
+++ b/Test/Uninitialized.cpp
@@ -5,7 +5,7 @@
 using namespace Leonetienne::BmpPP;
 using namespace Eule;
 
-// Tests that trying to interrogate any getter/Write() on an uninitialized image results in a runtime error
+// Tests that get information or modifying on an uninitialized image results in a runtime error
 TEST_CASE(__FILE__"/RuntimeErrorOnUninitialized", "[Uninitialized]")
 {
     // Create uninitialized image
@@ -46,6 +46,36 @@ TEST_CASE(__FILE__"/RuntimeErrorOnUninitialized", "[Uninitialized]")
         , std::runtime_error
     );
 
+    REQUIRE_THROWS_AS(
+        bmp.GetPixelbuffer()
+        , std::runtime_error
+    );
+
+    REQUIRE_THROWS_AS(
+        bmp.MirrorHorizontally()
+        , std::runtime_error
+    );
+
+    REQUIRE_THROWS_AS(
+        bmp.MirrorVertically()
+        , std::runtime_error
+    );
+
+    REQUIRE_THROWS_AS(
+        bmp.MirrorVertically()
+        , std::runtime_error
+    );
+
+    REQUIRE_THROWS_AS(
+        bmp.SwapChannels(0, 1)
+        , std::runtime_error
+    );
+
+    REQUIRE_THROWS_AS(
+        bmp.FillChannel(0, 0xFF)
+        , std::runtime_error
+    );
+
     REQUIRE_THROWS_AS(
         bmp.Write("foo.bmp")
         , std::runtime_error