test/src/jdk/nashorn/api/scripting/ScriptObjectMirrorTest.java

*** 359,364 ****
--- 359,377 ----
              " return obj instanceof Packages.jdk.nashorn.api.scripting.ScriptObjectMirror; " +
              "}");
          final Function<Object,Object> func = invocable.getInterface(Function.class);
          assertFalse((boolean)func.apply(engine.eval("({ x: 2 })")));
      }
+ 
+     // @bug 8055687: Wrong "this" passed to JSObject.eval call
+     @Test
+     public void checkThisForJSObjectEval() throws Exception {
+         final ScriptEngineManager engineManager = new ScriptEngineManager();
+         final ScriptEngine e = engineManager.getEngineByName("nashorn");
+         final JSObject jsobj = (JSObject)e.eval("({foo: 23, bar: 'hello' })"); 
+         assertEquals(((Number)jsobj.eval("this.foo")).intValue(), 23);
+         assertEquals(jsobj.eval("this.bar"), "hello");
+         assertEquals(jsobj.eval("String(this)"), "[object Object]");
+         final Object global = e.eval("this");
+         assertFalse(global.equals(jsobj.eval("this")));
+     }
  }