Test that version comparison compiles and works as expected.

src/Magnum/Test/VersionTest.cpp

@@ -34,11 +34,13 @@ struct VersionTest: TestSuite::Tester {
 
     void fromNumber();
     void toNumber();
+    void compare();
 };
 
 VersionTest::VersionTest() {
     addTests({&VersionTest::fromNumber,
-              &VersionTest::toNumber});
+              &VersionTest::toNumber,
+              &VersionTest::compare});
 }
 
 void VersionTest::fromNumber() {
@@ -57,6 +59,10 @@ void VersionTest::toNumber() {
     #endif
 }
 
+void VersionTest::compare() {
+    CORRADE_VERIFY(version(1, 1) < Version::GL210);
+}
+
 }}
 
 CORRADE_TEST_MAIN(Magnum::Test::VersionTest)