GL: make the Array GL::samplerWrapping() work and test it.

Also not sure what happened there.

src/Magnum/GL/Sampler.h

@@ -29,6 +29,7 @@
  * @brief Class @ref Magnum::GL::Sampler, enum @ref Magnum::GL::SamplerFilter, @ref Magnum::GL::SamplerMipmap, @ref Magnum::GL::SamplerWrapping, @ref Magnum::GL::SamplerCompareMode, @ref Magnum::GL::SamplerCompareFunction, @ref Magnum::GL::SamplerDepthStencilMode, function @ref Magnum::GL::samplerFilter(), @ref Magnum::GL::samplerMipmap(), @ref Magnum::GL::hasSamplerWrapping(), @ref Magnum::GL::samplerWrapping()
  */
 
+#include "Magnum/Array.h"
 #include "Magnum/Magnum.h"
 #include "Magnum/GL/OpenGL.h"
 #include "Magnum/GL/visibility.h"
@@ -189,9 +190,9 @@ format, @cpp true @ce otherwise. The @p filter value is expected to be valid.
     extension. Such check is outside of the scope of this function and you are
     expected to verify extension availability before using such format.
 
-@see @ref samplerFilter(), @ref samplerMipmap()
+@see @see @ref samplerWrapping(), @ref samplerFilter(), @ref samplerMipmap()
  */
-MAGNUM_GL_EXPORT bool hasSamplerWrapping(Magnum::SamplerWrapping wrappomg);
+MAGNUM_GL_EXPORT bool hasSamplerWrapping(Magnum::SamplerWrapping wrapping);
 
 /**
 @brief Convert generic sampler filter mode to OpenGL filter mode

src/Magnum/GL/Test/SamplerTest.cpp

@@ -39,6 +39,7 @@ struct SamplerTest: TestSuite::Tester {
     void mapMipmap();
     void mapMipmapInvalid();
     void mapWrapping();
+    void mapWrappingArray();
     void mapWrappingInvalid();
     void mapWrappingUnsupported();
 
@@ -60,6 +61,7 @@ SamplerTest::SamplerTest() {
               &SamplerTest::mapMipmap,
               &SamplerTest::mapMipmapInvalid,
               &SamplerTest::mapWrapping,
+              &SamplerTest::mapWrappingArray,
               &SamplerTest::mapWrappingInvalid,
               &SamplerTest::mapWrappingUnsupported,
 
@@ -126,6 +128,10 @@ void SamplerTest::mapWrapping() {
     #endif
 }
 
+void SamplerTest::mapWrappingArray() {
+    CORRADE_COMPARE(samplerWrapping<2>({Magnum::SamplerWrapping::Repeat, Magnum::SamplerWrapping::ClampToEdge}), (Array2D<SamplerWrapping>{SamplerWrapping::Repeat, SamplerWrapping::ClampToEdge}));
+}
+
 void SamplerTest::mapWrappingInvalid() {
     std::ostringstream out;
     Error redirectError{&out};
@@ -141,10 +147,13 @@ void SamplerTest::mapWrappingUnsupported() {
     #ifndef MAGNUM_TARGET_GLES
     CORRADE_SKIP("All pixel formats are supported on desktop");
     #else
-    std::ostringstream out;
+    CORRADE_VERIFY(!hasSamplerWrapping(Magnum::SamplerWrapping::MirrorClampToEdge));
-    Error redirectError{&out};
 
-    samplerWrapping(Magnum::SamplerWrapping::MirrorClampToEdge);
+    std::ostringstream out;
+    {
+        Error redirectError{&out};
+        samplerWrapping(Magnum::SamplerWrapping::MirrorClampToEdge);
+    }
     CORRADE_COMPARE(out.str(),
         "GL::samplerWrapping(): wrapping SamplerWrapping::MirrorClampToEdge is not supported on this target\n");
     #endif