--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/lambda/lambdaExecution/LambdaTranslationTest2.java Tue Nov 20 09:58:55 2012 -0800
@@ -0,0 +1,355 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8003639
+ * @summary convert lambda testng tests to jtreg and add them
+ * @run testng LambdaTranslationTest2
+ */
+
+import org.testng.annotations.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertTrue;
+
+/**
+ * LambdaTranslationTest2 -- end-to-end smoke tests for lambda evaluation
+ */
+
+@Test
+public class LambdaTranslationTest2 {
+
+ final String dummy = "dummy";
+
+ public void testLambdas() {
+ TPredicate<String> isEmpty = s -> s.isEmpty();
+ assertTrue(isEmpty.test(""));
+ assertTrue(!isEmpty.test("foo"));
+
+ TPredicate<Object> oIsEmpty = s -> ((String) s).isEmpty();
+ assertTrue(oIsEmpty.test(""));
+ assertTrue(!oIsEmpty.test("foo"));
+
+ TPredicate<Object> alwaysTrue = o -> true;
+ assertTrue(alwaysTrue.test(""));
+ assertTrue(alwaysTrue.test(null));
+
+ TPredicate<Object> alwaysFalse = o -> false;
+ assertTrue(!alwaysFalse.test(""));
+ assertTrue(!alwaysFalse.test(null));
+
+ // tests local capture
+ String foo = "foo";
+ TPredicate<String> equalsFoo = s -> s.equals(foo);
+ assertTrue(!equalsFoo.test(""));
+ assertTrue(equalsFoo.test("foo"));
+
+ // tests instance capture
+ TPredicate<String> equalsDummy = s -> s.equals(dummy);
+ assertTrue(!equalsDummy.test(""));
+ assertTrue(equalsDummy.test("dummy"));
+
+ TMapper<Object, Object> ident = s -> s;
+
+ assertEquals("blarf", ident.map("blarf"));
+ assertEquals("wooga", ident.map("wooga"));
+ assertTrue("wooga" == ident.map("wooga"));
+
+ // constant capture
+ TMapper<Object, Object> prefixer = s -> "p" + s;
+ assertEquals("pblarf", prefixer.map("blarf"));
+ assertEquals("pwooga", prefixer.map("wooga"));
+
+ // instance capture
+ TMapper<Object, Object> prefixer2 = s -> dummy + s;
+ assertEquals("dummyblarf", prefixer2.map("blarf"));
+ assertEquals("dummywooga", prefixer2.map("wooga"));
+ }
+
+ interface Factory<T> {
+ T make();
+ }
+
+ interface StringFactory extends Factory<String> { }
+
+ interface StringFactory2 extends Factory<String> {
+ String make();
+ }
+
+ public void testBridges() {
+ Factory<String> of = () -> "y";
+ Factory<?> ef = () -> "z";
+
+ assertEquals("y", of.make());
+ assertEquals("y", ((Factory<?>) of).make());
+ assertEquals("y", ((Factory) of).make());
+
+ assertEquals("z", ef.make());
+ assertEquals("z", ((Factory) ef).make());
+ }
+
+ public void testBridgesImplicitSpecialization() {
+ StringFactory sf = () -> "x";
+
+ assertEquals("x", sf.make());
+ assertEquals("x", ((Factory<String>) sf).make());
+ assertEquals("x", ((Factory<?>) sf).make());
+ assertEquals("x", ((Factory) sf).make());
+ }
+
+ public void testBridgesExplicitSpecialization() {
+ StringFactory2 sf = () -> "x";
+
+ assertEquals("x", sf.make());
+ assertEquals("x", ((Factory<String>) sf).make());
+ assertEquals("x", ((Factory<?>) sf).make());
+ assertEquals("x", ((Factory) sf).make());
+ }
+
+ public void testSuperCapture() {
+ class A {
+ String make() { return "x"; }
+ }
+
+ class B extends A {
+ void testSuperCapture() {
+ StringFactory sf = () -> super.make();
+ assertEquals("x", sf.make());
+ }
+ }
+
+ new B().testSuperCapture();
+ }
+
+ interface WidenD {
+ public String m(float a0, double a1);
+ }
+
+ interface WidenS {
+ public String m(byte a0, short a1);
+ }
+
+ interface WidenI {
+ public String m(byte a0, short a1, char a2, int a3);
+ }
+
+ interface WidenL {
+ public String m(byte a0, short a1, char a2, int a3, long a4);
+ }
+
+ interface Box {
+ public String m(byte a0, short a1, char a2, int a3, long a4, boolean a5, float a6, double a7);
+ }
+
+ static String pb(Byte a0, Short a1, Character a2, Integer a3, Long a4, Boolean a5, Float a6, Double a7) {
+ return String.format("b%d s%d c%c i%d j%d z%b f%f d%f", a0, a1, a2, a3, a4, a5, a6, a7);
+ }
+
+ static String pwI1(int a0, int a1, int a2, int a3) {
+ return String.format("b%d s%d c%d i%d", a0, a1, a2, a3);
+ }
+
+ static String pwI2(Integer a0, Integer a1, Integer a2, Integer a3) {
+ return String.format("b%d s%d c%d i%d", a0, a1, a2, a3);
+ }
+
+ static String pwL1(long a0, long a1, long a2, long a3, long a4) {
+ return String.format("b%d s%d c%d i%d j%d", a0, a1, a2, a3, a4);
+ }
+
+ static String pwL2(Long a0, Long a1, Long a2, Long a3, Long a4) {
+ return String.format("b%d s%d c%d i%d j%d", a0, a1, a2, a3, a4);
+ }
+
+ static String pwS1(short a0, short a1) {
+ return String.format("b%d s%d", a0, a1);
+ }
+
+ static String pwS2(Short a0, Short a1) {
+ return String.format("b%d s%d", a0, a1);
+ }
+
+ static String pwD1(double a0, double a1) {
+ return String.format("f%f d%f", a0, a1);
+ }
+
+ static String pwD2(Double a0, Double a1) {
+ return String.format("f%f d%f", a0, a1);
+ }
+
+ public void testPrimitiveWidening() {
+ WidenS ws1 = LambdaTranslationTest2::pwS1;
+ assertEquals("b1 s2", ws1.m((byte) 1, (short) 2));
+
+ WidenD wd1 = LambdaTranslationTest2::pwD1;
+ assertEquals("f1.000000 d2.000000", wd1.m(1.0f, 2.0));
+
+ WidenI wi1 = LambdaTranslationTest2::pwI1;
+ assertEquals("b1 s2 c3 i4", wi1.m((byte) 1, (short) 2, (char) 3, 4));
+
+ WidenL wl1 = LambdaTranslationTest2::pwL1;
+ assertEquals("b1 s2 c3 i4 j5", wl1.m((byte) 1, (short) 2, (char) 3, 4, 5L));
+
+ // @@@ TODO: clarify spec on widen+box conversion
+ }
+
+ interface Unbox {
+ public String m(Byte a0, Short a1, Character a2, Integer a3, Long a4, Boolean a5, Float a6, Double a7);
+ }
+
+ static String pu(byte a0, short a1, char a2, int a3, long a4, boolean a5, float a6, double a7) {
+ return String.format("b%d s%d c%c i%d j%d z%b f%f d%f", a0, a1, a2, a3, a4, a5, a6, a7);
+ }
+
+ public void testUnboxing() {
+ Unbox u = LambdaTranslationTest2::pu;
+ assertEquals("b1 s2 cA i4 j5 ztrue f6.000000 d7.000000", u.m((byte)1, (short) 2, 'A', 4, 5L, true, 6.0f, 7.0));
+ }
+
+ public void testBoxing() {
+ Box b = LambdaTranslationTest2::pb;
+ assertEquals("b1 s2 cA i4 j5 ztrue f6.000000 d7.000000", b.m((byte) 1, (short) 2, 'A', 4, 5L, true, 6.0f, 7.0));
+ }
+
+ static boolean cc(Object o) {
+ return ((String) o).equals("foo");
+ }
+
+ public void testArgCastingAdaptation() {
+ TPredicate<String> p = LambdaTranslationTest2::cc;
+ assertTrue(p.test("foo"));
+ assertTrue(!p.test("bar"));
+ }
+
+ interface SonOfPredicate<T> extends TPredicate<T> { }
+
+ public void testExtendsSAM() {
+ SonOfPredicate<String> p = s -> s.isEmpty();
+ assertTrue(p.test(""));
+ assertTrue(!p.test("foo"));
+ }
+
+ public void testConstructorRef() {
+ Factory<List<String>> lf = ArrayList<String>::new;
+ List<String> list = lf.make();
+ assertTrue(list instanceof ArrayList);
+ assertTrue(list != lf.make());
+ list.add("a");
+ assertEquals("[a]", list.toString());
+ }
+
+ private static String privateMethod() {
+ return "private";
+ }
+
+ public void testPrivateMethodRef() {
+ Factory<String> sf = LambdaTranslationTest2::privateMethod;
+ assertEquals("private", sf.make());
+ }
+
+ private interface PrivateIntf {
+ String make();
+ }
+
+ public void testPrivateIntf() {
+ PrivateIntf p = () -> "foo";
+ assertEquals("foo", p.make());
+ }
+
+ interface Op<T> {
+ public T op(T a, T b);
+ }
+
+ public void testBoxToObject() {
+ Op<Integer> maxer = Math::max;
+ for (int i=-100000; i < 100000; i += 100)
+ for (int j=-100000; j < 100000; j += 99) {
+ assertEquals((int) maxer.op(i,j), Math.max(i,j));
+ }
+ }
+
+ protected static String protectedMethod() {
+ return "protected";
+ }
+
+ public void testProtectedMethodRef() {
+ Factory<String> sf = LambdaTranslationTest2::protectedMethod;
+ assertEquals("protected", sf.make());
+ }
+
+ class Inner1 {
+ String m1() {
+ return "Inner1.m1()";
+ }
+
+ class Inner2 {
+ public String m1() {
+ return "Inner1.Inner2.m1()";
+ }
+
+ protected String m2() {
+ return "Inner1.Inner2.m2()";
+ }
+
+ String m3() {
+ return "Inner1.Inner2.m3()";
+ }
+
+ class Inner3<T> {
+ T t = null;
+ Inner3(T t) {
+ this.t = t;
+ }
+ T m1() {
+ return t;
+ }
+ }
+ }
+ }
+
+ public void testInnerClassMethodRef() {
+ Factory<String> fs = new Inner1()::m1;
+ assertEquals("Inner1.m1()", fs.make());
+
+ fs = new Inner1().new Inner2()::m1;
+ assertEquals("Inner1.Inner2.m1()", fs.make());
+
+ fs = new Inner1().new Inner2()::m2;
+ assertEquals("Inner1.Inner2.m2()", fs.make());
+
+ fs = new Inner1().new Inner2()::m3;
+ assertEquals("Inner1.Inner2.m3()", fs.make());
+
+ fs = new Inner1().new Inner2().new Inner3<String>("Inner1.Inner2.Inner3")::m1;
+ assertEquals("Inner1.Inner2.Inner3", fs.make());
+
+ Factory<Integer> fsi = new Inner1().new Inner2().new Inner3<Integer>(100)::m1;
+ assertEquals(100, (int)fsi.make());
+ }
+}