Debug output operator for Context::Flag enum.

src/Magnum/Context.cpp

@@ -514,4 +514,14 @@ Version Context::supportedVersion(std::initializer_list<Version> versions) const
     #endif
 }
 
+Debug operator<<(Debug debug, const Context::Flag value) {
+    switch(value) {
+        #define _c(value) case Context::Flag::value: return debug << "Context::Flag::" #value;
+        _c(Debug)
+        _c(RobustAccess)
+    }
+
+    return debug << "Context::Flag::(invalid)";
+}
+
 }

src/Magnum/Context.h

@@ -403,6 +403,9 @@ class MAGNUM_EXPORT Context {
         Implementation::State* _state;
 };
 
+/** @debugoperator{Magnum::Context} */
+MAGNUM_EXPORT Debug operator<<(Debug debug, Context::Flag value);
+
 /** @hideinitializer
 @brief Assert that given OpenGL version is supported
 @param version      Version

src/Magnum/Test/CMakeLists.txt

@@ -27,6 +27,7 @@ corrade_add_test(AbstractImageTest AbstractImageTest.cpp LIBRARIES Magnum)
 corrade_add_test(AbstractShaderProgramTest AbstractShaderProgramTest.cpp LIBRARIES Magnum)
 corrade_add_test(ArrayTest ArrayTest.cpp)
 corrade_add_test(ColorTest ColorTest.cpp LIBRARIES MagnumMathTestLib)
+corrade_add_test(ContextTest ContextTest.cpp LIBRARIES Magnum)
 corrade_add_test(DebugMessageTest DebugMessageTest.cpp LIBRARIES Magnum)
 corrade_add_test(DefaultFramebufferTest DefaultFramebufferTest.cpp LIBRARIES Magnum)
 corrade_add_test(FramebufferTest FramebufferTest.cpp LIBRARIES Magnum)

src/Magnum/Test/ContextTest.cpp

@@ -0,0 +1,52 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014
+              Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include <sstream>
+#include <Corrade/TestSuite/Tester.h>
+
+#include "Magnum/Context.h"
+
+namespace Magnum { namespace Test {
+
+class ContextTest: public TestSuite::Tester {
+    public:
+        explicit ContextTest();
+
+        void debugFlag();
+};
+
+ContextTest::ContextTest() {
+    addTests({&ContextTest::debugFlag});
+}
+
+void ContextTest::debugFlag() {
+    std::ostringstream out;
+    Debug(&out) << Context::Flag::Debug;
+    CORRADE_COMPARE(out.str(), "Context::Flag::Debug\n");
+}
+
+}}
+
+CORRADE_TEST_MAIN(Magnum::Test::ContextTest)