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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package jdk.nashorn.api.scripting.test;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
import javax.script.Bindings;
import javax.script.Compilable;
import javax.script.CompiledScript;
import javax.script.Invocable;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.script.SimpleBindings;
import javax.script.SimpleScriptContext;
import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
import jdk.nashorn.api.scripting.ScriptObjectMirror;
import jdk.nashorn.api.scripting.URLReader;
import org.testng.Assert;
import org.testng.annotations.Test;
/**
* Tests for jsr223 Bindings "scope" (engine, global scopes)
*/
@SuppressWarnings("javadoc")
public class ScopeTest {
@Test
public void createBindingsTest() {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
b.put("foo", 42.0);
Object res = null;
try {
res = e.eval("foo == 42.0", b);
} catch (final ScriptException | NullPointerException se) {
se.printStackTrace();
fail(se.getMessage());
}
assertEquals(res, Boolean.TRUE);
}
@Test
public void engineScopeTest() {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings engineScope = e.getBindings(ScriptContext.ENGINE_SCOPE);
// check few ECMA standard built-in global properties
assertNotNull(engineScope.get("Object"));
assertNotNull(engineScope.get("TypeError"));
assertNotNull(engineScope.get("eval"));
// can access via ScriptEngine.get as well
assertNotNull(e.get("Object"));
assertNotNull(e.get("TypeError"));
assertNotNull(e.get("eval"));
// Access by either way should return same object
assertEquals(engineScope.get("Array"), e.get("Array"));
assertEquals(engineScope.get("EvalError"), e.get("EvalError"));
assertEquals(engineScope.get("undefined"), e.get("undefined"));
// try exposing a new variable from scope
engineScope.put("myVar", "foo");
try {
assertEquals(e.eval("myVar"), "foo");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
// update "myVar" in script an check the value from scope
try {
e.eval("myVar = 'nashorn';");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
// now check modified value from scope and engine
assertEquals(engineScope.get("myVar"), "nashorn");
assertEquals(e.get("myVar"), "nashorn");
}
@Test
public void multiGlobalTest() {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
try {
final Object obj1 = e.eval("Object");
final Object obj2 = e.eval("Object", newCtxt);
Assert.assertNotEquals(obj1, obj2);
Assert.assertNotNull(obj1);
Assert.assertNotNull(obj2);
Assert.assertEquals(obj1.toString(), obj2.toString());
e.eval("x = 'hello'");
e.eval("x = 'world'", newCtxt);
Object x1 = e.getContext().getAttribute("x");
Object x2 = newCtxt.getAttribute("x");
Assert.assertNotEquals(x1, x2);
Assert.assertEquals(x1, "hello");
Assert.assertEquals(x2, "world");
x1 = e.eval("x");
x2 = e.eval("x", newCtxt);
Assert.assertNotEquals(x1, x2);
Assert.assertEquals(x1, "hello");
Assert.assertEquals(x2, "world");
final ScriptContext origCtxt = e.getContext();
e.setContext(newCtxt);
e.eval("y = new Object()");
e.eval("y = new Object()", origCtxt);
final Object y1 = origCtxt.getAttribute("y");
final Object y2 = newCtxt.getAttribute("y");
Assert.assertNotEquals(y1, y2);
final Object yeval1 = e.eval("y");
final Object yeval2 = e.eval("y", origCtxt);
Assert.assertNotEquals(yeval1, yeval2);
Assert.assertEquals("[object Object]", y1.toString());
Assert.assertEquals("[object Object]", y2.toString());
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
}
@Test
public void userEngineScopeBindingsTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
e.eval("function func() {}");
final ScriptContext newContext = new SimpleScriptContext();
newContext.setBindings(new SimpleBindings(), ScriptContext.ENGINE_SCOPE);
// we are using a new bindings - so it should have 'func' defined
final Object value = e.eval("typeof func", newContext);
assertTrue(value.equals("undefined"));
}
@Test
public void userEngineScopeBindingsNoLeakTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final ScriptContext newContext = new SimpleScriptContext();
newContext.setBindings(new SimpleBindings(), ScriptContext.ENGINE_SCOPE);
e.eval("function foo() {}", newContext);
// in the default context's ENGINE_SCOPE, 'foo' shouldn't exist
assertTrue(e.eval("typeof foo").equals("undefined"));
}
@Test
public void userEngineScopeBindingsRetentionTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final ScriptContext newContext = new SimpleScriptContext();
newContext.setBindings(new SimpleBindings(), ScriptContext.ENGINE_SCOPE);
e.eval("function foo() {}", newContext);
// definition retained with user's ENGINE_SCOPE Binding
assertTrue(e.eval("typeof foo", newContext).equals("function"));
final Bindings oldBindings = newContext.getBindings(ScriptContext.ENGINE_SCOPE);
// but not in another ENGINE_SCOPE binding
newContext.setBindings(new SimpleBindings(), ScriptContext.ENGINE_SCOPE);
assertTrue(e.eval("typeof foo", newContext).equals("undefined"));
// restore ENGINE_SCOPE and check again
newContext.setBindings(oldBindings, ScriptContext.ENGINE_SCOPE);
assertTrue(e.eval("typeof foo", newContext).equals("function"));
}
@Test
// check that engine.js definitions are visible in all new global instances
public void checkBuiltinsInNewBindingsTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
// check default global instance has engine.js definitions
final Bindings g = (Bindings) e.eval("this");
Object value = g.get("__noSuchProperty__");
assertTrue(value instanceof ScriptObjectMirror && ((ScriptObjectMirror)value).isFunction());
value = g.get("print");
assertTrue(value instanceof ScriptObjectMirror && ((ScriptObjectMirror)value).isFunction());
// check new global instance created has engine.js definitions
final Bindings b = e.createBindings();
value = b.get("__noSuchProperty__");
assertTrue(value instanceof ScriptObjectMirror && ((ScriptObjectMirror)value).isFunction());
value = b.get("print");
assertTrue(value instanceof ScriptObjectMirror && ((ScriptObjectMirror)value).isFunction());
// put a mapping into GLOBAL_SCOPE
final Bindings globalScope = e.getContext().getBindings(ScriptContext.GLOBAL_SCOPE);
globalScope.put("x", "hello");
// GLOBAL_SCOPE mapping should be visible from default ScriptContext eval
assertTrue(e.eval("x").equals("hello"));
final ScriptContext ctx = new SimpleScriptContext();
ctx.setBindings(globalScope, ScriptContext.GLOBAL_SCOPE);
ctx.setBindings(b, ScriptContext.ENGINE_SCOPE);
// GLOBAL_SCOPE mapping should be visible from non-default ScriptContext eval
assertTrue(e.eval("x", ctx).equals("hello"));
// try some arbitray Bindings for ENGINE_SCOPE
final Bindings sb = new SimpleBindings();
ctx.setBindings(sb, ScriptContext.ENGINE_SCOPE);
// GLOBAL_SCOPE mapping should be visible from non-default ScriptContext eval
assertTrue(e.eval("x", ctx).equals("hello"));
// engine.js builtins are still defined even with arbitrary Bindings
assertTrue(e.eval("typeof print", ctx).equals("function"));
assertTrue(e.eval("typeof __noSuchProperty__", ctx).equals("function"));
// ENGINE_SCOPE definition should 'hide' GLOBAL_SCOPE definition
sb.put("x", "newX");
assertTrue(e.eval("x", ctx).equals("newX"));
}
/**
* Test multi-threaded access to defined global variables for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedVarTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "foo";
assertEquals(e.eval("var foo = 'original context';", origContext), null);
assertEquals(e.eval("var foo = 'new context';", newCtxt), null);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval("var foo = 'newer context';", newCtxt), null);
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
assertEquals(e.eval(sharedScript), "original context");
assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
/**
* Test multi-threaded access to undefined global variables for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedGlobalTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
assertEquals(e.eval("foo = 'original context';", origContext), "original context");
assertEquals(e.eval("foo = 'new context';", newCtxt), "new context");
final String sharedScript = "foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete foo; foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
Assert.assertEquals(e.eval(sharedScript), "original context");
Assert.assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
/**
* Test multi-threaded access using the postfix ++ operator for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedIncTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
assertEquals(e.eval("var x = 0;", origContext), null);
assertEquals(e.eval("var x = 2;", newCtxt), null);
final String sharedScript = "x++;";
final Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
try {
for (int i = 0; i < 1000; i++) {
assertEquals(e.eval(sharedScript, origContext), (double)i);
}
} catch (final ScriptException se) {
fail(se.toString());
}
}
});
final Thread t2 = new Thread(new Runnable() {
@Override
public void run() {
try {
for (int i = 2; i < 1000; i++) {
assertEquals(e.eval(sharedScript, newCtxt), (double)i);
}
} catch (final ScriptException se) {
fail(se.toString());
}
}
});
t1.start();
t2.start();
t1.join();
t2.join();
}
/**
* Test multi-threaded access to primitive prototype properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedPrimitiveTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final Object obj1 = e.eval("String.prototype.foo = 'original context';", origContext);
final Object obj2 = e.eval("String.prototype.foo = 'new context';", newCtxt);
assertEquals(obj1, "original context");
assertEquals(obj2, "new context");
final String sharedScript = "''.foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete String.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
Assert.assertEquals(e.eval(sharedScript), "original context");
Assert.assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
/**
* Test multi-threaded access to prototype user accessor properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedAccessorTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval("Object.defineProperty(Object.prototype, 'foo', { get: function() 'original context' })", origContext);
e.eval("Object.defineProperty(Object.prototype, 'foo', { get: function() 'new context', configurable: true })", newCtxt);
final String sharedScript = "({}).foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete Object.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
}
/**
* Test multi-threaded access to primitive prototype user accessor properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedPrimitiveAccessorTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval("Object.defineProperty(String.prototype, 'foo', { get: function() 'original context' })", origContext);
e.eval("Object.defineProperty(String.prototype, 'foo', { get: function() 'new context' })", newCtxt);
final String sharedScript = "''.foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete String.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
}
/**
* Test multi-threaded scope function invocation for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedFunctionTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval(new URLReader(ScopeTest.class.getResource("resources/func.js")), origContext);
assertEquals(origContext.getAttribute("scopeVar"), 1);
assertEquals(e.eval("scopeTest()"), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/func.js")), newCtxt);
assertEquals(newCtxt.getAttribute("scopeVar"), 1);
assertEquals(e.eval("scopeTest();", newCtxt), 1);
assertEquals(e.eval("scopeVar = 3;", newCtxt), 3);
assertEquals(newCtxt.getAttribute("scopeVar"), 3);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, "scopeTest()", 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, "scopeTest()", 3, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
}
/**
* Test multi-threaded access to global getters and setters for shared script classes with multiple globals.
*/
@Test
public static void getterSetterTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "accessor1";
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), origContext);
assertEquals(e.eval("accessor1 = 1;"), 1);
assertEquals(e.eval(sharedScript), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), newCtxt);
assertEquals(e.eval("accessor1 = 2;", newCtxt), 2);
assertEquals(e.eval(sharedScript, newCtxt), 2);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, 2, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval(sharedScript), 1);
assertEquals(e.eval(sharedScript, newCtxt), 2);
assertEquals(e.eval("v"), 1);
assertEquals(e.eval("v", newCtxt), 2);
}
/**
* Test multi-threaded access to global getters and setters for shared script classes with multiple globals.
*/
@Test
public static void getterSetter2Test() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "accessor2";
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), origContext);
assertEquals(e.eval("accessor2 = 1;"), 1);
assertEquals(e.eval(sharedScript), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), newCtxt);
assertEquals(e.eval("accessor2 = 2;", newCtxt), 2);
assertEquals(e.eval(sharedScript, newCtxt), 2);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, 2, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval(sharedScript), 1);
assertEquals(e.eval(sharedScript, newCtxt), 2);
assertEquals(e.eval("x"), 1);
assertEquals(e.eval("x", newCtxt), 2);
}
// @bug 8058422: Users should be able to overwrite "context" and "engine" variables
@Test
public static void contextOverwriteTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = new SimpleBindings();
b.put("context", "hello");
b.put("foo", 32);
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.setContext(newCtxt);
assertEquals(e.eval("context"), "hello");
assertEquals(((Number)e.eval("foo")).intValue(), 32);
}
// @bug 8058422: Users should be able to overwrite "context" and "engine" variables
@Test
public static void contextOverwriteInScriptTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
e.put("foo", 32);
assertEquals(((Number)e.eval("foo")).intValue(), 32);
assertEquals(e.eval("context = 'bar'"), "bar");
assertEquals(((Number)e.eval("foo")).intValue(), 32);
}
// @bug 8058422: Users should be able to overwrite "context" and "engine" variables
@Test
public static void engineOverwriteTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = new SimpleBindings();
b.put("engine", "hello");
b.put("foo", 32);
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.setContext(newCtxt);
assertEquals(e.eval("engine"), "hello");
assertEquals(((Number)e.eval("foo")).intValue(), 32);
}
// @bug 8058422: Users should be able to overwrite "context" and "engine" variables
@Test
public static void engineOverwriteInScriptTest() throws ScriptException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
e.put("foo", 32);
assertEquals(((Number)e.eval("foo")).intValue(), 32);
assertEquals(e.eval("engine = 'bar'"), "bar");
assertEquals(((Number)e.eval("foo")).intValue(), 32);
}
// @bug 8044750: megamorphic getter for scope objects does not call __noSuchProperty__ hook
@Test
public static void testMegamorphicGetInGlobal() throws Exception {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine engine = m.getEngineByName("nashorn");
final String script = "foo";
// "foo" is megamorphic because of different global scopes.
// Make sure ScriptContext variable search works even after
// it becomes megamorphic.
for (int index = 0; index < 25; index++) {
final Bindings bindings = new SimpleBindings();
bindings.put("foo", index);
final Number value = (Number)engine.eval(script, bindings);
assertEquals(index, value.intValue());
}
}
/**
* Test "slow" scopes involving {@code with} and {@code eval} statements for shared script classes with multiple globals.
* @throws ScriptException
* @throws InterruptedException
*/
@Test
public static void testSlowScope() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
for (int i = 0; i < 100; i++) {
final Bindings b = e.createBindings();
final ScriptContext ctxt = new SimpleScriptContext();
ctxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval(new URLReader(ScopeTest.class.getResource("resources/witheval.js")), ctxt);
assertEquals(e.eval("a", ctxt), 1);
assertEquals(b.get("a"), 1);
assertEquals(e.eval("b", ctxt), 3);
assertEquals(b.get("b"), 3);
assertEquals(e.eval("c", ctxt), 10);
assertEquals(b.get("c"), 10);
}
}
private static class ScriptRunner implements Runnable {
final ScriptEngine engine;
final ScriptContext context;
final String source;
final Object expected;
final int iterations;
ScriptRunner(final ScriptEngine engine, final ScriptContext context, final String source, final Object expected, final int iterations) {
this.engine = engine;
this.context = context;
this.source = source;
this.expected = expected;
this.iterations = iterations;
}
@Override
public void run() {
try {
for (int i = 0; i < iterations; i++) {
assertEquals(engine.eval(source, context), expected);
}
} catch (final ScriptException se) {
throw new RuntimeException(se);
}
}
}
// @bug 8071678: NashornScriptEngine returns javax.script.ScriptContext instance
// with get/setAttribute methods insonsistent for GLOBAL_SCOPE
@Test
public void testGlobalScopeSearch() throws Exception {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final ScriptContext c = e.getContext();
c.setAttribute("name1234", "value", ScriptContext.GLOBAL_SCOPE);
assertEquals(c.getAttribute("name1234"), "value");
assertEquals(c.getAttributesScope("name1234"),
ScriptContext.GLOBAL_SCOPE);
}
// @bug 8071594: NashornScriptEngine returns javax.script.ScriptContext instance
// which doesn't completely conform to the spec regarding exceptions throwing
@Test
public void testScriptContext_NPE_IAE() throws Exception {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final ScriptContext c = e.getContext();
try {
c.getAttribute("");
throw new AssertionError("should have thrown IAE");
} catch (final IllegalArgumentException iae1) {}
try {
c.getAttribute(null);
throw new AssertionError("should have thrown NPE");
} catch (final NullPointerException npe1) {}
try {
c.getAttribute("", ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown IAE");
} catch (final IllegalArgumentException iae2) {}
try {
c.getAttribute(null, ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown NPE");
} catch (final NullPointerException npe2) {}
try {
c.removeAttribute("", ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown IAE");
} catch (final IllegalArgumentException iae3) {}
try {
c.removeAttribute(null, ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown NPE");
} catch (final NullPointerException npe3) {}
try {
c.setAttribute("", "value", ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown IAE");
} catch (final IllegalArgumentException iae4) {}
try {
c.setAttribute(null, "value", ScriptContext.ENGINE_SCOPE);
throw new AssertionError("should have thrown NPE");
} catch (final NullPointerException npe4) {}
try {
c.getAttributesScope("");
throw new AssertionError("should have thrown IAE");
} catch (final IllegalArgumentException iae5) {}
try {
c.getAttributesScope(null);
throw new AssertionError("should have thrown NPE");
} catch (final NullPointerException npe5) {}
}
public static class RecursiveEval {
private final ScriptEngineFactory factory = new NashornScriptEngineFactory();
private final ScriptEngine engine = factory.getScriptEngine();
private final Bindings engineBindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
public void program() throws ScriptException {
final ScriptContext sc = new SimpleScriptContext();
final Bindings global = new SimpleBindings();
sc.setBindings(global, ScriptContext.GLOBAL_SCOPE);
sc.setBindings(engineBindings, ScriptContext.ENGINE_SCOPE);
global.put("text", "programText");
String value = engine.eval("text", sc).toString();
Assert.assertEquals(value, "programText");
engine.put("program", this);
engine.eval("program.method()");
// eval again from here!
value = engine.eval("text", sc).toString();
Assert.assertEquals(value, "programText");
}
public void method() throws ScriptException {
// a context with a new global bindings, same engine bindings
final ScriptContext sc = new SimpleScriptContext();
final Bindings global = new SimpleBindings();
sc.setBindings(global, ScriptContext.GLOBAL_SCOPE);
sc.setBindings(engineBindings, ScriptContext.ENGINE_SCOPE);
global.put("text", "methodText");
final String value = engine.eval("text", sc).toString();
Assert.assertEquals(value, "methodText");
}
}
// @bug 8081609: engine.eval call from a java method which
// was called from a previous engine.eval results in wrong
// ScriptContext being used.
@Test
public void recursiveEvalCallScriptContextTest() throws ScriptException {
new RecursiveEval().program();
}
private static final String VAR_NAME = "myvar";
private static boolean lookupVar(final ScriptEngine engine, final String varName) {
try {
engine.eval(varName);
return true;
} catch (final ScriptException se) {
return false;
}
}
// @bug 8136544: Call site switching to megamorphic causes incorrect property read
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
final ScriptEngine engine = factory.getScriptEngine();
final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
boolean ret;
// Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
// See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
// We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
// is exercised - much beyond the default megamorphic threshold.
for (int i = 0; i < 16; i++) {
scope.remove(VAR_NAME);
ret = lookupVar(engine, VAR_NAME);
assertFalse(ret, "Expected false in iteration " + i);
scope.put(VAR_NAME, "foo");
ret = lookupVar(engine, VAR_NAME);
assertTrue(ret, "Expected true in iteration " + i);
}
}
// @bug 8138616: invokeFunction fails if function calls a function defined in GLOBAL_SCOPE
@Test
public void invokeFunctionInGlobalScopeTest() throws Exception {
final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
final ScriptContext ctxt = engine.getContext();
// define a function called "func"
engine.eval("func = function() { return 42 }");
// move ENGINE_SCOPE Bindings to GLOBAL_SCOPE
ctxt.setBindings(ctxt.getBindings(ScriptContext.ENGINE_SCOPE), ScriptContext.GLOBAL_SCOPE);
// create a new Bindings and set as ENGINE_SCOPE
ctxt.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
// define new function that calls "func" now in GLOBAL_SCOPE
engine.eval("newfunc = function() { return func() }");
// call "newfunc" and check the return value
final Object value = ((Invocable)engine).invokeFunction("newfunc");
assertTrue(((Number)value).intValue() == 42);
}
// @bug 8138616: invokeFunction fails if function calls a function defined in GLOBAL_SCOPE
// variant of above that replaces default ScriptContext of the engine with a fresh instance!
@Test
public void invokeFunctionInGlobalScopeTest2() throws Exception {
final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
// create a new ScriptContext instance
final ScriptContext ctxt = new SimpleScriptContext();
// set it as 'default' ScriptContext
engine.setContext(ctxt);
// create a new Bindings and set as ENGINE_SCOPE
ctxt.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
// define a function called "func"
engine.eval("func = function() { return 42 }");
// move ENGINE_SCOPE Bindings to GLOBAL_SCOPE
ctxt.setBindings(ctxt.getBindings(ScriptContext.ENGINE_SCOPE), ScriptContext.GLOBAL_SCOPE);
// create a new Bindings and set as ENGINE_SCOPE
ctxt.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
// define new function that calls "func" now in GLOBAL_SCOPE
engine.eval("newfunc = function() { return func() }");
// call "newfunc" and check the return value
final Object value = ((Invocable)engine).invokeFunction("newfunc");
assertTrue(((Number)value).intValue() == 42);
}
// @bug 8150219 ReferenceError in 1.8.0_72
// When we create a Global for a non-default ScriptContext that needs one keep the
// ScriptContext associated with the Global so that invoke methods work as expected.
@Test
public void invokeFunctionWithCustomScriptContextTest() throws Exception {
final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
// create an engine and a ScriptContext, but don't set it as default
final ScriptContext scriptContext = new SimpleScriptContext();
// Set some value in the context
scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);
// Evaluate script with custom context and get back a function
final String script = "function (c) { return myString.indexOf(c); }";
final CompiledScript compiledScript = ((Compilable)engine).compile(script);
final Object func = compiledScript.eval(scriptContext);
// Invoked function should be able to see context it was evaluated with
final Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
assertTrue(((Number)result).intValue() == 1);
}
}