diff --git a/src/Magnum/Attribute.cpp b/src/Magnum/Attribute.cpp
index c3af6c051..901aa2c53 100644
--- a/src/Magnum/Attribute.cpp
+++ b/src/Magnum/Attribute.cpp
@@ -141,8 +141,10 @@ UnsignedInt Attribute<Math::Vector<4, Float>>::size(GLint components, DataType d
 
 Debug& operator<<(Debug& debug, SizedAttribute<1, 1>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedAttribute<1, 1>::Components::One:
             return debug << "Attribute::Components::One";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -150,10 +152,12 @@ Debug& operator<<(Debug& debug, SizedAttribute<1, 1>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedAttribute<1, 2>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedAttribute<1, 2>::Components::One:
             return debug << "Attribute::Components::One";
         case SizedAttribute<1, 2>::Components::Two:
             return debug << "Attribute::Components::Two";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -161,12 +165,14 @@ Debug& operator<<(Debug& debug, SizedAttribute<1, 2>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedAttribute<1, 3>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedAttribute<1, 3>::Components::One:
             return debug << "Attribute::Components::One";
         case SizedAttribute<1, 3>::Components::Two:
             return debug << "Attribute::Components::Two";
         case SizedAttribute<1, 3>::Components::Three:
             return debug << "Attribute::Components::Three";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -174,6 +180,7 @@ Debug& operator<<(Debug& debug, SizedAttribute<1, 3>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedAttribute<1, 4>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedAttribute<1, 4>::Components::One:
             return debug << "Attribute::Components::One";
         case SizedAttribute<1, 4>::Components::Two:
@@ -182,6 +189,7 @@ Debug& operator<<(Debug& debug, SizedAttribute<1, 4>::Components value) {
             return debug << "Attribute::Components::Three";
         case SizedAttribute<1, 4>::Components::Four:
             return debug << "Attribute::Components::Four";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -189,8 +197,10 @@ Debug& operator<<(Debug& debug, SizedAttribute<1, 4>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedMatrixAttribute<2>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedMatrixAttribute<2>::Components::Two:
             return debug << "Attribute::Components::Two";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -198,8 +208,10 @@ Debug& operator<<(Debug& debug, SizedMatrixAttribute<2>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedMatrixAttribute<3>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedMatrixAttribute<3>::Components::Three:
             return debug << "Attribute::Components::Three";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -207,8 +219,10 @@ Debug& operator<<(Debug& debug, SizedMatrixAttribute<3>::Components value) {
 
 Debug& operator<<(Debug& debug, SizedMatrixAttribute<4>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case SizedMatrixAttribute<4>::Components::Four:
             return debug << "Attribute::Components::Four";
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -216,6 +230,7 @@ Debug& operator<<(Debug& debug, SizedMatrixAttribute<4>::Components value) {
 
 Debug& operator<<(Debug& debug, Attribute<Math::Vector<4, Float>>::Components value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         case Attribute<Math::Vector<4, Float>>::Components::One:
             return debug << "Attribute::Components::One";
         case Attribute<Math::Vector<4, Float>>::Components::Two:
@@ -228,6 +243,7 @@ Debug& operator<<(Debug& debug, Attribute<Math::Vector<4, Float>>::Components va
         case Attribute<Math::Vector<4, Float>>::Components::BGRA:
             return debug << "Attribute::Components::BGRA";
         #endif
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::Components::(invalid)";
@@ -235,6 +251,7 @@ Debug& operator<<(Debug& debug, Attribute<Math::Vector<4, Float>>::Components va
 
 Debug& operator<<(Debug& debug, FloatAttribute::DataType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case FloatAttribute::DataType::value: return debug << "Attribute::DataType::" #value;
         _c(UnsignedByte)
         _c(Byte)
@@ -248,6 +265,7 @@ Debug& operator<<(Debug& debug, FloatAttribute::DataType value) {
         _c(Double)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::DataType::(invalid)";
@@ -256,6 +274,7 @@ Debug& operator<<(Debug& debug, FloatAttribute::DataType value) {
 #ifndef MAGNUM_TARGET_GLES2
 Debug& operator<<(Debug& debug, IntAttribute::DataType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case IntAttribute::DataType::value: return debug << "Attribute::DataType::" #value;
         _c(UnsignedByte)
         _c(Byte)
@@ -264,6 +283,7 @@ Debug& operator<<(Debug& debug, IntAttribute::DataType value) {
         _c(UnsignedInt)
         _c(Int)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::DataType::(invalid)";
@@ -273,9 +293,11 @@ Debug& operator<<(Debug& debug, IntAttribute::DataType value) {
 #ifndef MAGNUM_TARGET_GLES
 Debug& operator<<(Debug& debug, DoubleAttribute::DataType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DoubleAttribute::DataType::value: return debug << "Attribute::DataType::" #value;
         _c(Double)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::DataType::(invalid)";
@@ -284,6 +306,7 @@ Debug& operator<<(Debug& debug, DoubleAttribute::DataType value) {
 
 Debug& operator<<(Debug& debug, Attribute<Math::Vector<3, Float>>::DataType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Attribute<Math::Vector<3, Float>>::DataType::value: return debug << "Attribute::DataType::" #value;
         _c(UnsignedByte)
         _c(Byte)
@@ -298,6 +321,7 @@ Debug& operator<<(Debug& debug, Attribute<Math::Vector<3, Float>>::DataType valu
         _c(UnsignedInt10f11f11fRev)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::DataType::(invalid)";
@@ -305,6 +329,7 @@ Debug& operator<<(Debug& debug, Attribute<Math::Vector<3, Float>>::DataType valu
 
 Debug& operator<<(Debug& debug, Attribute<Math::Vector<4, Float>>::DataType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Attribute<Math::Vector<4, Float>>::DataType::value: return debug << "Attribute::DataType::" #value;
         _c(UnsignedByte)
         _c(Byte)
@@ -322,6 +347,7 @@ Debug& operator<<(Debug& debug, Attribute<Math::Vector<4, Float>>::DataType valu
         _c(Int2101010Rev)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Attribute::DataType::(invalid)";
diff --git a/src/Magnum/Audio/Buffer.cpp b/src/Magnum/Audio/Buffer.cpp
index cc1f00cde..8b0990d73 100644
--- a/src/Magnum/Audio/Buffer.cpp
+++ b/src/Magnum/Audio/Buffer.cpp
@@ -31,6 +31,7 @@ namespace Magnum { namespace Audio {
 
 Debug& operator<<(Debug& debug, const Buffer::Format value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Buffer::Format::value: return debug << "Audio::Buffer::Format::" #value;
         _c(Mono8)
         _c(Mono16)
@@ -42,6 +43,7 @@ Debug& operator<<(Debug& debug, const Buffer::Format value) {
         _c(MonoDouble)
         _c(StereoDouble)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Audio::Buffer::Format::(invalid)";
diff --git a/src/Magnum/Audio/Context.cpp b/src/Magnum/Audio/Context.cpp
index 70a331db2..44855aac5 100644
--- a/src/Magnum/Audio/Context.cpp
+++ b/src/Magnum/Audio/Context.cpp
@@ -55,6 +55,7 @@ const std::vector<Extension>& Extension::extensions() {
 
 Debug& operator<<(Debug& debug, const Context::HrtfStatus value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Context::HrtfStatus::value: return debug << "Audio::Context::HrtfStatus::" #value;
         _c(Disabled)
         _c(Enabled)
@@ -63,6 +64,7 @@ Debug& operator<<(Debug& debug, const Context::HrtfStatus value) {
         _c(Detected)
         _c(UnsupportedFormat)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Audio::Context::HrtfStatus::(invalid)";
diff --git a/src/Magnum/Audio/Renderer.cpp b/src/Magnum/Audio/Renderer.cpp
index db5fcee9b..afe320893 100644
--- a/src/Magnum/Audio/Renderer.cpp
+++ b/src/Magnum/Audio/Renderer.cpp
@@ -31,6 +31,7 @@ namespace Magnum { namespace Audio {
 
 Debug& operator<<(Debug& debug, const Renderer::Error value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Renderer::Error::value: return debug << "Audio::Renderer::Error::" #value;
         _c(NoError)
         _c(InvalidName)
@@ -39,6 +40,7 @@ Debug& operator<<(Debug& debug, const Renderer::Error value) {
         _c(InvalidOperation)
         _c(OutOfMemory)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Audio::Renderer::Error::(invalid)";
@@ -46,6 +48,7 @@ Debug& operator<<(Debug& debug, const Renderer::Error value) {
 
 Debug& operator<<(Debug& debug, const Renderer::DistanceModel value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Renderer::DistanceModel::value: return debug << "Audio::Renderer::DistanceModel::" #value;
         _c(None)
         _c(Inverse)
@@ -55,6 +58,7 @@ Debug& operator<<(Debug& debug, const Renderer::DistanceModel value) {
         _c(Exponent)
         _c(ExponentClamped)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Audio::Renderer::DistanceModel::(invalid)";
diff --git a/src/Magnum/Audio/Source.cpp b/src/Magnum/Audio/Source.cpp
index 7e47c1f5e..c659d6ab5 100644
--- a/src/Magnum/Audio/Source.cpp
+++ b/src/Magnum/Audio/Source.cpp
@@ -98,12 +98,14 @@ void Source::rewind(const std::vector<std::reference_wrapper<Source>>& sources)
 
 Debug& operator<<(Debug& debug, const Source::State value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Source::State::value: return debug << "Audio::Source::State::" #value;
         _c(Initial)
         _c(Playing)
         _c(Paused)
         _c(Stopped)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Audio::Source::State::(invalid)";
diff --git a/src/Magnum/Buffer.cpp b/src/Magnum/Buffer.cpp
index 00a72cd83..b111181af 100644
--- a/src/Magnum/Buffer.cpp
+++ b/src/Magnum/Buffer.cpp
@@ -624,6 +624,7 @@ bool Buffer::unmapImplementationDSAEXT() {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, Buffer::TargetHint value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Buffer::TargetHint::value: return debug << "Buffer::TargetHint::" #value;
         _c(Array)
         #ifndef MAGNUM_TARGET_GLES2
@@ -653,6 +654,7 @@ Debug& operator<<(Debug& debug, Buffer::TargetHint value) {
         _c(Uniform)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Buffer::TargetHint::(invalid)";
diff --git a/src/Magnum/Context.cpp b/src/Magnum/Context.cpp
index ed1c6e892..4d6095d23 100644
--- a/src/Magnum/Context.cpp
+++ b/src/Magnum/Context.cpp
@@ -830,6 +830,7 @@ void Context::resetState(const States states) {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const Context::Flag value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Context::Flag::value: return debug << "Context::Flag::" #value;
         _c(Debug)
         _c(NoError)
@@ -837,6 +838,7 @@ Debug& operator<<(Debug& debug, const Context::Flag value) {
         _c(RobustAccess)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Context::Flag::(invalid)";
diff --git a/src/Magnum/DebugOutput.cpp b/src/Magnum/DebugOutput.cpp
index f6cfe733e..a9e69bc3b 100644
--- a/src/Magnum/DebugOutput.cpp
+++ b/src/Magnum/DebugOutput.cpp
@@ -227,6 +227,7 @@ void DebugOutput::callbackImplementationKhr(const Callback callback, const void*
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const DebugOutput::Source value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DebugOutput::Source::value: return debug << "DebugOutput::Source::" #value;
         _c(Api)
         _c(WindowSystem)
@@ -235,6 +236,7 @@ Debug& operator<<(Debug& debug, const DebugOutput::Source value) {
         _c(Application)
         _c(Other)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "DebugOutput::Source::(invalid)";
@@ -242,6 +244,7 @@ Debug& operator<<(Debug& debug, const DebugOutput::Source value) {
 
 Debug& operator<<(Debug& debug, const DebugOutput::Type value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DebugOutput::Type::value: return debug << "DebugOutput::Type::" #value;
         _c(Error)
         _c(DeprecatedBehavior)
@@ -253,6 +256,7 @@ Debug& operator<<(Debug& debug, const DebugOutput::Type value) {
         _c(PopGroup)
         _c(Other)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "DebugOutput::Type::(invalid)";
@@ -314,6 +318,7 @@ void DebugMessage::insertImplementationGremedy(Source, Type, UnsignedInt, DebugO
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const DebugMessage::Source value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DebugMessage::Source::value: return debug << "DebugMessage::Source::" #value;
         _c(ThirdParty)
         _c(Application)
@@ -325,6 +330,7 @@ Debug& operator<<(Debug& debug, const DebugMessage::Source value) {
         case DebugMessage::Source::Other:
             return debug << DebugOutput::Source(value);
         #endif
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "DebugMessage::Source::(invalid)";
@@ -426,10 +432,12 @@ void DebugGroup::popImplementationExt() {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const DebugGroup::Source value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DebugGroup::Source::value: return debug << "DebugGroup::Source::" #value;
         _c(ThirdParty)
         _c(Application)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "DebugGroup::Source::(invalid)";
diff --git a/src/Magnum/DefaultFramebuffer.cpp b/src/Magnum/DefaultFramebuffer.cpp
index c8a148676..2f980fe47 100644
--- a/src/Magnum/DefaultFramebuffer.cpp
+++ b/src/Magnum/DefaultFramebuffer.cpp
@@ -117,12 +117,14 @@ void DefaultFramebuffer::initializeContextBasedFunctionality(Context& context) {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const DefaultFramebuffer::Status value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case DefaultFramebuffer::Status::value: return debug << "DefaultFramebuffer::Status::" #value;
         _c(Complete)
         #ifndef MAGNUM_TARGET_WEBGL
         _c(Undefined)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "DefaultFramebuffer::Status::(invalid)";
diff --git a/src/Magnum/Framebuffer.cpp b/src/Magnum/Framebuffer.cpp
index 096e47620..7bc67dea3 100644
--- a/src/Magnum/Framebuffer.cpp
+++ b/src/Magnum/Framebuffer.cpp
@@ -408,6 +408,7 @@ void Framebuffer::textureLayerImplementationDSAEXT(BufferAttachment attachment,
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const Framebuffer::Status value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Framebuffer::Status::value: return debug << "Framebuffer::Status::" #value;
         _c(Complete)
         _c(IncompleteAttachment)
@@ -424,6 +425,7 @@ Debug& operator<<(Debug& debug, const Framebuffer::Status value) {
         _c(IncompleteLayerTargets)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Framebuffer::Status::(invalid)";
diff --git a/src/Magnum/Mesh.cpp b/src/Magnum/Mesh.cpp
index 96631277f..b6799676c 100644
--- a/src/Magnum/Mesh.cpp
+++ b/src/Magnum/Mesh.cpp
@@ -637,6 +637,7 @@ void Mesh::drawElementsInstancedImplementationNV(const GLsizei count, const GLin
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, MeshPrimitive value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case MeshPrimitive::value: return debug << "MeshPrimitive::" #value;
         _c(Points)
         _c(LineStrip)
@@ -655,6 +656,7 @@ Debug& operator<<(Debug& debug, MeshPrimitive value) {
         _c(Patches)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "MeshPrimitive::(invalid)";
@@ -662,11 +664,13 @@ Debug& operator<<(Debug& debug, MeshPrimitive value) {
 
 Debug& operator<<(Debug& debug, Mesh::IndexType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Mesh::IndexType::value: return debug << "Mesh::IndexType::" #value;
         _c(UnsignedByte)
         _c(UnsignedShort)
         _c(UnsignedInt)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Mesh::IndexType::(invalid)";
diff --git a/src/Magnum/PixelFormat.cpp b/src/Magnum/PixelFormat.cpp
index 7059b7a38..4fe23e67a 100644
--- a/src/Magnum/PixelFormat.cpp
+++ b/src/Magnum/PixelFormat.cpp
@@ -32,6 +32,7 @@ namespace Magnum {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const PixelFormat value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case PixelFormat::value: return debug << "PixelFormat::" #value;
         #if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2))
         _c(Red)
@@ -77,6 +78,7 @@ Debug& operator<<(Debug& debug, const PixelFormat value) {
         #endif
         _c(DepthStencil)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "PixelFormat::(invalid)";
@@ -84,6 +86,7 @@ Debug& operator<<(Debug& debug, const PixelFormat value) {
 
 Debug& operator<<(Debug& debug, const PixelType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case PixelType::value: return debug << "PixelType::" #value;
         _c(UnsignedByte)
         #ifndef MAGNUM_TARGET_GLES2
@@ -132,6 +135,7 @@ Debug& operator<<(Debug& debug, const PixelType value) {
         _c(Float32UnsignedInt248Rev)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "PixelType::(invalid)";
@@ -139,6 +143,7 @@ Debug& operator<<(Debug& debug, const PixelType value) {
 
 Debug& operator<<(Debug& debug, const CompressedPixelFormat value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case CompressedPixelFormat::value: return debug << "CompressedPixelFormat::" #value;
         #ifndef MAGNUM_TARGET_GLES
         _c(Red)
@@ -201,6 +206,7 @@ Debug& operator<<(Debug& debug, const CompressedPixelFormat value) {
         _c(SRGB8Alpha8Astc12x12)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "CompressedPixelFormat::(invalid)";
diff --git a/src/Magnum/Renderer.cpp b/src/Magnum/Renderer.cpp
index ef9338896..0b1a7de29 100644
--- a/src/Magnum/Renderer.cpp
+++ b/src/Magnum/Renderer.cpp
@@ -241,6 +241,7 @@ Renderer::GraphicsResetStatus Renderer::graphicsResetStatusImplementationRobustn
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const Renderer::Error value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Renderer::Error::value: return debug << "Renderer::Error::" #value;
         _c(NoError)
         _c(InvalidEnum)
@@ -253,6 +254,7 @@ Debug& operator<<(Debug& debug, const Renderer::Error value) {
         _c(StackOverflow)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Renderer::Error::(invalid)";
@@ -261,10 +263,12 @@ Debug& operator<<(Debug& debug, const Renderer::Error value) {
 #ifndef MAGNUM_TARGET_WEBGL
 Debug& operator<<(Debug& debug, const Renderer::ResetNotificationStrategy value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Renderer::ResetNotificationStrategy::value: return debug << "Renderer::ResetNotificationStrategy::" #value;
         _c(NoResetNotification)
         _c(LoseContextOnReset)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Renderer::ResetNotificationStrategy::(invalid)";
@@ -272,12 +276,14 @@ Debug& operator<<(Debug& debug, const Renderer::ResetNotificationStrategy value)
 
 Debug& operator<<(Debug& debug, const Renderer::GraphicsResetStatus value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Renderer::GraphicsResetStatus::value: return debug << "Renderer::GraphicsResetStatus::" #value;
         _c(NoError)
         _c(GuiltyContextReset)
         _c(InnocentContextReset)
         _c(UnknownContextReset)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Renderer::ResetNotificationStrategy::(invalid)";
diff --git a/src/Magnum/Resource.cpp b/src/Magnum/Resource.cpp
index 8106b18ed..5aac6adab 100644
--- a/src/Magnum/Resource.cpp
+++ b/src/Magnum/Resource.cpp
@@ -30,6 +30,7 @@ namespace Magnum {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const ResourceState value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case ResourceState::value: return debug << "ResourceState::" #value;
         _c(NotLoaded)
         _c(NotLoadedFallback)
@@ -40,6 +41,7 @@ Debug& operator<<(Debug& debug, const ResourceState value) {
         _c(Mutable)
         _c(Final)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "ResourceState::(invalid)";
diff --git a/src/Magnum/Sampler.cpp b/src/Magnum/Sampler.cpp
index e2a8fee14..fbf9e4740 100644
--- a/src/Magnum/Sampler.cpp
+++ b/src/Magnum/Sampler.cpp
@@ -63,10 +63,12 @@ Float Sampler::maxMaxAnisotropy() {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const Sampler::Filter value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::Filter::value: return debug << "Sampler::Filter::" #value;
         _c(Nearest)
         _c(Linear)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::Filter::(invalid)";
@@ -74,11 +76,13 @@ Debug& operator<<(Debug& debug, const Sampler::Filter value) {
 
 Debug& operator<<(Debug& debug, const Sampler::Mipmap value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::Mipmap::value: return debug << "Sampler::Mipmap::" #value;
         _c(Base)
         _c(Nearest)
         _c(Linear)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::Mipmap::(invalid)";
@@ -86,6 +90,7 @@ Debug& operator<<(Debug& debug, const Sampler::Mipmap value) {
 
 Debug& operator<<(Debug& debug, const Sampler::Wrapping value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::Wrapping::value: return debug << "Sampler::Wrapping::" #value;
         _c(Repeat)
         _c(MirroredRepeat)
@@ -97,6 +102,7 @@ Debug& operator<<(Debug& debug, const Sampler::Wrapping value) {
         _c(MirrorClampToEdge)
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::Wrapping::(invalid)";
@@ -105,10 +111,12 @@ Debug& operator<<(Debug& debug, const Sampler::Wrapping value) {
 #if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2))
 Debug& operator<<(Debug& debug, const Sampler::CompareMode value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::CompareMode::value: return debug << "Sampler::CompareMode::" #value;
         _c(None)
         _c(CompareRefToTexture)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::CompareFunction::(invalid)";
@@ -116,6 +124,7 @@ Debug& operator<<(Debug& debug, const Sampler::CompareMode value) {
 
 Debug& operator<<(Debug& debug, const Sampler::CompareFunction value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::CompareFunction::value: return debug << "Sampler::CompareFunction::" #value;
         _c(Never)
         _c(Always)
@@ -126,6 +135,7 @@ Debug& operator<<(Debug& debug, const Sampler::CompareFunction value) {
         _c(GreaterOrEqual)
         _c(Greater)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::CompareFunction::(invalid)";
@@ -135,10 +145,12 @@ Debug& operator<<(Debug& debug, const Sampler::CompareFunction value) {
 #ifndef MAGNUM_TARGET_GLES
 Debug& operator<<(Debug& debug, const Sampler::DepthStencilMode value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Sampler::DepthStencilMode::value: return debug << "Sampler::DepthStencilMode::" #value;
         _c(DepthComponent)
         _c(StencilIndex)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Sampler::DepthStencilMode::(invalid)";
diff --git a/src/Magnum/SceneGraph/Animable.cpp b/src/Magnum/SceneGraph/Animable.cpp
index 4ea4ce845..504f3079c 100644
--- a/src/Magnum/SceneGraph/Animable.cpp
+++ b/src/Magnum/SceneGraph/Animable.cpp
@@ -31,11 +31,13 @@ namespace Magnum { namespace SceneGraph {
 
 Debug& operator<<(Debug& debug, AnimationState value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case AnimationState::value: return debug << "SceneGraph::AnimationState::" #value;
         _c(Stopped)
         _c(Paused)
         _c(Running)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "SceneGraph::AnimationState::(invalid)";
diff --git a/src/Magnum/Shader.cpp b/src/Magnum/Shader.cpp
index eba5bb1ad..e1435b542 100644
--- a/src/Magnum/Shader.cpp
+++ b/src/Magnum/Shader.cpp
@@ -892,6 +892,7 @@ bool Shader::compile(std::initializer_list<std::reference_wrapper<Shader>> shade
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const Shader::Type value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case Shader::Type::value: return debug << "Shader::Type::" #value;
         _c(Vertex)
         #if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
@@ -902,6 +903,7 @@ Debug& operator<<(Debug& debug, const Shader::Type value) {
         #endif
         _c(Fragment)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Shader::Type::(invalid)";
diff --git a/src/Magnum/Shapes/shapeImplementation.cpp b/src/Magnum/Shapes/shapeImplementation.cpp
index b2fc534df..f48741e4d 100644
--- a/src/Magnum/Shapes/shapeImplementation.cpp
+++ b/src/Magnum/Shapes/shapeImplementation.cpp
@@ -31,6 +31,7 @@ namespace Magnum { namespace Shapes { namespace Implementation {
 
 Debug& operator<<(Debug& debug, ShapeDimensionTraits<2>::Type value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _val(value) case ShapeDimensionTraits<2>::Type::value: return debug << "Shapes::Shape2D::Type::" #value;
         _val(Point)
         _val(Line)
@@ -43,6 +44,7 @@ Debug& operator<<(Debug& debug, ShapeDimensionTraits<2>::Type value) {
         _val(Box)
         _val(Composition)
         #undef _val
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Shapes::Shape2D::Type::(unknown)";
@@ -50,6 +52,7 @@ Debug& operator<<(Debug& debug, ShapeDimensionTraits<2>::Type value) {
 
 Debug& operator<<(Debug& debug, ShapeDimensionTraits<3>::Type value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _val(value) case ShapeDimensionTraits<3>::Type::value: return debug << "Shapes::Shape3D::Type::" #value;
         _val(Point)
         _val(Line)
@@ -63,6 +66,7 @@ Debug& operator<<(Debug& debug, ShapeDimensionTraits<3>::Type value) {
         _val(Plane)
         _val(Composition)
         #undef _val
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Shapes::Shape3D::Type::(unknown)";
diff --git a/src/Magnum/Trade/AbstractMaterialData.cpp b/src/Magnum/Trade/AbstractMaterialData.cpp
index c60d10001..1e585630c 100644
--- a/src/Magnum/Trade/AbstractMaterialData.cpp
+++ b/src/Magnum/Trade/AbstractMaterialData.cpp
@@ -35,9 +35,11 @@ AbstractMaterialData::~AbstractMaterialData() {}
 
 Debug& operator<<(Debug& debug, const MaterialType value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case MaterialType::value: return debug << "Trade::MaterialType::" #value;
         _c(Phong)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Trade::MaterialType::(unknown)";
diff --git a/src/Magnum/Trade/ObjectData2D.cpp b/src/Magnum/Trade/ObjectData2D.cpp
index 4ea19c029..7505e4528 100644
--- a/src/Magnum/Trade/ObjectData2D.cpp
+++ b/src/Magnum/Trade/ObjectData2D.cpp
@@ -40,11 +40,13 @@ ObjectData2D& ObjectData2D::operator=(ObjectData2D&&) = default;
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, ObjectInstanceType2D value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case ObjectInstanceType2D::value: return debug << "Trade::ObjectInstanceType2D::" #value;
         _c(Camera)
         _c(Mesh)
         _c(Empty)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Trade::ObjectInstanceType2D::(invalid)";
diff --git a/src/Magnum/Trade/ObjectData3D.cpp b/src/Magnum/Trade/ObjectData3D.cpp
index c0e0cfc94..c86829bc2 100644
--- a/src/Magnum/Trade/ObjectData3D.cpp
+++ b/src/Magnum/Trade/ObjectData3D.cpp
@@ -40,12 +40,14 @@ ObjectData3D& ObjectData3D::operator=(ObjectData3D&&) = default;
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, ObjectInstanceType3D value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case ObjectInstanceType3D::value: return debug << "Trade::ObjectInstanceType3D::" #value;
         _c(Camera)
         _c(Light)
         _c(Mesh)
         _c(Empty)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Trade::ObjectInstanceType3D::(invalid)";
diff --git a/src/Magnum/Trade/TextureData.cpp b/src/Magnum/Trade/TextureData.cpp
index d0be1a163..b646306b3 100644
--- a/src/Magnum/Trade/TextureData.cpp
+++ b/src/Magnum/Trade/TextureData.cpp
@@ -30,12 +30,14 @@ namespace Magnum { namespace Trade {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, const TextureData::Type value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value) case TextureData::Type::value: return debug << "Trade::TextureData::Type::" #value;
         _c(Texture1D)
         _c(Texture2D)
         _c(Texture3D)
         _c(Cube)
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Trade::TextureData::Type::(unknown)";
diff --git a/src/Magnum/Version.cpp b/src/Magnum/Version.cpp
index c0853dff7..43c42aa51 100644
--- a/src/Magnum/Version.cpp
+++ b/src/Magnum/Version.cpp
@@ -32,6 +32,7 @@ namespace Magnum {
 #ifndef DOXYGEN_GENERATING_OUTPUT
 Debug& operator<<(Debug& debug, Version value) {
     switch(value) {
+        /* LCOV_EXCL_START */
         #define _c(value, string) case Version::value: return debug << string;
         _c(None, "None")
         #ifndef MAGNUM_TARGET_GLES
@@ -56,6 +57,7 @@ Debug& operator<<(Debug& debug, Version value) {
         _c(GLES310, "OpenGL ES 3.1")
         #endif
         #undef _c
+        /* LCOV_EXCL_STOP */
     }
 
     return debug << "Invalid";