AnyImageConverter: test case for uppercase extensions

src/MagnumPlugins/AnyImageConverter/Test/AnyImageConverterTest.cpp

@@ -41,6 +41,8 @@ struct AnyImageConverterTest: TestSuite::Tester {
 
     void tga();
 
+    void uppercase();
+
     void unknown();
 
     /* Explicitly forbid system-wide plugin dependencies */
@@ -49,7 +51,7 @@ struct AnyImageConverterTest: TestSuite::Tester {
 
 AnyImageConverterTest::AnyImageConverterTest() {
     addTests({&AnyImageConverterTest::tga,
-
+              &AnyImageConverterTest::uppercase,
               &AnyImageConverterTest::unknown});
 
     /* Load the plugin directly from the build tree. Otherwise it's static and
@@ -89,6 +91,21 @@ void AnyImageConverterTest::tga() {
     CORRADE_VERIFY(Utility::Directory::fileExists(filename));
 }
 
+void AnyImageConverterTest::uppercase() {
+    if(!(_manager.loadState("TgaImageConverter") & PluginManager::LoadState::Loaded))
+        CORRADE_SKIP("TgaImageConverter plugin not enabled, cannot test");
+
+    const std::string filename = Utility::Directory::join(ANYIMAGECONVERTER_TEST_DIR, "output.TGA");
+
+    if(Utility::Directory::fileExists(filename))
+        CORRADE_VERIFY(Utility::Directory::rm(filename));
+
+    /* Just test that the exported file exists */
+    Containers::Pointer<AbstractImageConverter> converter = _manager.instantiate("AnyImageConverter");
+    CORRADE_VERIFY(converter->exportToFile(Image, filename));
+    CORRADE_VERIFY(Utility::Directory::fileExists(filename));
+}
+
 void AnyImageConverterTest::unknown() {
     std::ostringstream output;
     Error redirectError{&output};