GL: actually test Buffer::setTargetHint().

src/Magnum/GL/Test/BufferGLTest.cpp

@@ -50,6 +50,8 @@ struct BufferGLTest: OpenGLTester {
     void constructMove();
     void wrap();
 
+    void targetHint();
+
     #ifndef MAGNUM_TARGET_WEBGL
     void label();
     #endif
@@ -109,6 +111,8 @@ BufferGLTest::BufferGLTest() {
               &BufferGLTest::constructMove,
               &BufferGLTest::wrap,
 
+              &BufferGLTest::targetHint,
+
               #ifndef MAGNUM_TARGET_WEBGL
               &BufferGLTest::label,
               #endif
@@ -234,6 +238,14 @@ void BufferGLTest::wrap() {
     glDeleteBuffers(1, &id);
 }
 
+void BufferGLTest::targetHint() {
+    Buffer buffer;
+    CORRADE_COMPARE(buffer.targetHint(), Buffer::TargetHint::Array);
+
+    buffer.setTargetHint(Buffer::TargetHint::ElementArray);
+    CORRADE_COMPARE(buffer.targetHint(), Buffer::TargetHint::ElementArray);
+}
+
 #ifndef MAGNUM_TARGET_WEBGL
 void BufferGLTest::label() {
     /* No-Op version is tested in AbstractObjectGLTest */