diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c9460aeca..26601309b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -24,6 +24,7 @@ set(Magnum_SRCS
     Profiler.cpp
     Query.cpp
     Renderbuffer.cpp
+    Resource.cpp
     Shader.cpp
     SizeTraits.cpp
     Timeline.cpp
diff --git a/src/Resource.cpp b/src/Resource.cpp
new file mode 100644
index 000000000..6093091d4
--- /dev/null
+++ b/src/Resource.cpp
@@ -0,0 +1,39 @@
+/*
+    Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
+
+    This file is part of Magnum.
+
+    Magnum is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License version 3
+    only, as published by the Free Software Foundation.
+
+    Magnum is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Lesser General Public License version 3 for more details.
+*/
+
+#include "Resource.h"
+
+namespace Magnum {
+
+#ifndef DOXYGEN_GENERATING_OUTPUT
+Debug MAGNUM_EXPORT operator<<(Debug debug, ResourceState value) {
+    switch(value) {
+        #define _c(value) case ResourceState::value: return debug << "ResourceState::" #value;
+        _c(NotLoaded)
+        _c(NotLoadedFallback)
+        _c(Loading)
+        _c(LoadingFallback)
+        _c(NotFound)
+        _c(NotFoundFallback)
+        _c(Mutable)
+        _c(Final)
+        #undef _c
+    }
+
+    return debug << "ResourceState::(invalid)";
+}
+#endif
+
+}
diff --git a/src/Resource.h b/src/Resource.h
index 9b90cf41e..484036726 100644
--- a/src/Resource.h
+++ b/src/Resource.h
@@ -23,6 +23,8 @@
 
 #include "Magnum.h"
 
+#include "magnumVisibility.h"
+
 namespace Magnum {
 
 /** @relates Resource
@@ -44,6 +46,9 @@ enum class ResourceState: std::uint8_t {
     Final
 };
 
+/** @debugoperator{Magnum::Resource} */
+Debug MAGNUM_EXPORT operator<<(Debug debug, ResourceState value);
+
 /**
 @brief Key for accessing resource
 
diff --git a/src/Test/CMakeLists.txt b/src/Test/CMakeLists.txt
index 2a2c2ebc8..e7950f7f4 100644
--- a/src/Test/CMakeLists.txt
+++ b/src/Test/CMakeLists.txt
@@ -1,5 +1,5 @@
 corrade_add_test2(ColorTest ColorTest.cpp LIBRARIES MagnumMathTestLib)
-corrade_add_test2(ResourceManagerTest ResourceManagerTest.cpp)
+corrade_add_test2(ResourceManagerTest ResourceManagerTest.cpp LIBRARIES MagnumTestLib)
 corrade_add_test2(SwizzleTest SwizzleTest.cpp LIBRARIES MagnumMathTestLib)
 
 set_target_properties(ResourceManagerTest PROPERTIES COMPILE_FLAGS -DCORRADE_GRACEFUL_ASSERT)
diff --git a/src/Test/ResourceManagerTest.cpp b/src/Test/ResourceManagerTest.cpp
index 57e7490aa..9c50d214b 100644
--- a/src/Test/ResourceManagerTest.cpp
+++ b/src/Test/ResourceManagerTest.cpp
@@ -51,14 +51,14 @@ void ResourceManagerTest::state() {
     ResourceKey questionKey("the-question");
     rm.set(questionKey, new int32_t(10), ResourceDataState::Mutable, ResourcePolicy::Resident);
     Resource<int32_t> theQuestion = rm.get<int32_t>(questionKey);
-    CORRADE_VERIFY(theQuestion.state() == ResourceState::Mutable);
+    CORRADE_COMPARE(theQuestion.state(), ResourceState::Mutable);
     CORRADE_COMPARE(*theQuestion, 10);
 
     /* Check that hash function is working properly */
     ResourceKey answerKey("the-answer");
     rm.set(answerKey, new int32_t(42), ResourceDataState::Final, ResourcePolicy::Resident);
     Resource<int32_t> theAnswer = rm.get<int32_t>(answerKey);
-    CORRADE_VERIFY(theAnswer.state() == ResourceState::Final);
+    CORRADE_COMPARE(theAnswer.state(), ResourceState::Final);
     CORRADE_COMPARE(*theAnswer, 42);
 
     CORRADE_COMPARE(rm.count<int32_t>(), 2);
@@ -72,7 +72,7 @@ void ResourceManagerTest::state() {
 
     /* Check non-final resource changes */
     rm.set(questionKey, new int32_t(20), ResourceDataState::Final, ResourcePolicy::Resident);
-    CORRADE_VERIFY(theQuestion.state() == ResourceState::Final);
+    CORRADE_COMPARE(theQuestion.state(), ResourceState::Final);
     CORRADE_COMPARE(*theQuestion, 20);
 }
 
@@ -99,14 +99,14 @@ void ResourceManagerTest::referenceCountedPolicy() {
         rm.set(dataRefCountKey, new Data(), ResourceDataState::Final, ResourcePolicy::ReferenceCounted);
         CORRADE_COMPARE(rm.count<Data>(), 0);
         Resource<Data> data = rm.get<Data>(dataRefCountKey);
-        CORRADE_VERIFY(data.state() == ResourceState::NotLoaded);
+        CORRADE_COMPARE(data.state(), ResourceState::NotLoaded);
         CORRADE_COMPARE(Data::count, 0);
     } {
         Resource<Data> data = rm.get<Data>(dataRefCountKey);
         CORRADE_COMPARE(rm.count<Data>(), 1);
-        CORRADE_VERIFY(data.state() == ResourceState::NotLoaded);
+        CORRADE_COMPARE(data.state(), ResourceState::NotLoaded);
         rm.set(dataRefCountKey, new Data(), ResourceDataState::Final, ResourcePolicy::ReferenceCounted);
-        CORRADE_VERIFY(data.state() == ResourceState::Final);
+        CORRADE_COMPARE(data.state(), ResourceState::Final);
         CORRADE_COMPARE(Data::count, 1);
     }