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test/jdk/java/awt/font/MonospacedGlyphWidth/MonospacedGlyphWidthTest.java

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@@ -20,35 +20,68 @@
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 
 /* @test
- * @bug 8073400
+ * @bug 8073400 8198412
  * @summary Some Monospaced logical fonts have a different width
  * @author Dmitry Markov
  * @run main MonospacedGlyphWidthTest
  */
-import java.awt.*;
+import java.awt.Font;
+import java.awt.GraphicsEnvironment;
 import java.awt.font.FontRenderContext;
 
 public class MonospacedGlyphWidthTest {
-    private static final int START_INDEX = 0x2018;
-    private static final int END_INDEX = 0x201F;
+    private static final int ASCII_START_INDEX = 0x0061;
+    private static final int ASCII_END_INDEX = 0x007A;
 
-    public static void main(String[] args) {
+    private static final int TEST_START_INDEX = 0x2018;
+    private static final int TEST_END_INDEX = 0x201F;
+
+    private static boolean checkChars(int start, int end, boolean except) {
         Font font = new Font(Font.MONOSPACED, Font.PLAIN, 12);
         double width = getCharWidth(font, 'a');
 
-        for (int i = START_INDEX; i <= END_INDEX; i++) {
+        for (int i = start; i <= end; i++) {
+            if (!(font.canDisplay(i))) {
+                if (except) {
+                    continue;
+                } else {
+                    return false;
+                }
+            }
             if (width != getCharWidth(font, (char)i)) {
-                throw new RuntimeException("Test Failed: characters have different width!");
+                if (except) {
+                    throw new RuntimeException(
+                          "Test Failed: characters have different width!");
+                } else {
+                    return false;
             }
         }
-        System.out.println("Test Passed!");
+        }
+        return true;
     }
 
     private static double getCharWidth(Font font, char c) {
         FontRenderContext fontRenderContext = new FontRenderContext(null, false, false);
         return font.getStringBounds(new char[] {c}, 0, 1, fontRenderContext).getWidth();
     }
-}
 
+    public static void main(String[] args) {
+        if (!checkChars(ASCII_START_INDEX, ASCII_END_INDEX, false)) {
+           System.out.println("It appears there are no suitable fonts");
+           System.out.println("Here are the fonts found on this system:");
+           GraphicsEnvironment ge =
+               GraphicsEnvironment.getLocalGraphicsEnvironment();   
+           Font[] fonts = ge.getAllFonts();
+           for (Font f : fonts) {
+               System.out.println(f);
+           }
+
+           return;
+        } 
+          
+        checkChars(TEST_START_INDEX, TEST_END_INDEX, true);
+        System.out.println("Test Passed!");
+    }
+}
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