Run Graal Polyglot as well as Script Engine sample

Author: Jaroslav Tulach

src/main/java/com/mycompany/app/App.java

@@ -108,7 +108,7 @@ static long benchNashornScriptEngine() throws IOException {
         }
     }
 
-    private static long benchGraalScriptEngine() throws IOException {
+    static long benchGraalScriptEngine() throws IOException {
         System.out.println("=== Graal.js via javax.script.ScriptEngine ===");
         ScriptEngine graaljsEngine = new ScriptEngineManager().getEngineByName("graal.js");
         if (graaljsEngine == null) {

src/test/java/com/mycompany/app/AppTest.java

@@ -1,15 +1,30 @@
 package com.mycompany.app;
 
 import static org.junit.Assert.fail;
+import org.junit.BeforeClass;
 import org.junit.Test;
 
 public class AppTest {
+    private static long nashorn;
+
+    @BeforeClass
+    public static void nashornBenchmark() throws Exception {
+        nashorn = App.benchNashornScriptEngine();
+    }
+
     @Test
-    public void testSpeed() throws Exception {
-        long nashorn = App.benchNashornScriptEngine();
+    public void testGraalPolyglotSpeed() throws Exception {
         long graalJS = App.benchGraalPolyglotContext();
         if (nashorn < graalJS) {
             fail(String.format("Graal.js (%d ms) should be faster than Nashorn (%d ms).", graalJS, nashorn));
         }
     }
+
+    @Test
+    public void testGraalScriptEngineSpeed() throws Exception {
+        long graalJS = App.benchGraalScriptEngine();
+        if (nashorn < graalJS) {
+            fail(String.format("Graal.js (%d ms) should be faster than Nashorn (%d ms).", graalJS, nashorn));
+        }
+    }
 }