Some changes for mime handling

- added additional formats
- added get function
- added tests

test/zutil/MimeTypeUtilTest.java

@@ -0,0 +1,40 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Ziver Koc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package zutil;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class MimeTypeUtilTest {
+
+    @Test
+    public void getMimeByExtension() {
+        assertEquals("image/jpeg", MimeTypeUtil.getMimeByExtension("jpg").toString());
+        assertEquals("image/png", MimeTypeUtil.getMimeByExtension("png").toString());
+        assertEquals("video/mp4", MimeTypeUtil.getMimeByExtension("mp4").toString());
+        assertEquals("video/x-matroska", MimeTypeUtil.getMimeByExtension("mkv").toString());
+    }
+}