diff -r 000000000000 -r 959103a6100f test/tools/javac/lambda/lambdaExecution/LambdaTranslationTest2.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/lambda/lambdaExecution/LambdaTranslationTest2.java Wed Apr 27 01:34:52 2016 +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 isEmpty = s -> s.isEmpty(); + assertTrue(isEmpty.test("")); + assertTrue(!isEmpty.test("foo")); + + TPredicate oIsEmpty = s -> ((String) s).isEmpty(); + assertTrue(oIsEmpty.test("")); + assertTrue(!oIsEmpty.test("foo")); + + TPredicate alwaysTrue = o -> true; + assertTrue(alwaysTrue.test("")); + assertTrue(alwaysTrue.test(null)); + + TPredicate alwaysFalse = o -> false; + assertTrue(!alwaysFalse.test("")); + assertTrue(!alwaysFalse.test(null)); + + // tests local capture + String foo = "foo"; + TPredicate equalsFoo = s -> s.equals(foo); + assertTrue(!equalsFoo.test("")); + assertTrue(equalsFoo.test("foo")); + + // tests instance capture + TPredicate equalsDummy = s -> s.equals(dummy); + assertTrue(!equalsDummy.test("")); + assertTrue(equalsDummy.test("dummy")); + + TMapper ident = s -> s; + + assertEquals("blarf", ident.map("blarf")); + assertEquals("wooga", ident.map("wooga")); + assertTrue("wooga" == ident.map("wooga")); + + // constant capture + TMapper prefixer = s -> "p" + s; + assertEquals("pblarf", prefixer.map("blarf")); + assertEquals("pwooga", prefixer.map("wooga")); + + // instance capture + TMapper prefixer2 = s -> dummy + s; + assertEquals("dummyblarf", prefixer2.map("blarf")); + assertEquals("dummywooga", prefixer2.map("wooga")); + } + + interface Factory { + T make(); + } + + interface StringFactory extends Factory { } + + interface StringFactory2 extends Factory { + String make(); + } + + public void testBridges() { + Factory 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) 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) 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 p = LambdaTranslationTest2::cc; + assertTrue(p.test("foo")); + assertTrue(!p.test("bar")); + } + + interface SonOfPredicate extends TPredicate { } + + public void testExtendsSAM() { + SonOfPredicate p = s -> s.isEmpty(); + assertTrue(p.test("")); + assertTrue(!p.test("foo")); + } + + public void testConstructorRef() { + Factory> lf = ArrayList::new; + List 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 sf = LambdaTranslationTest2::privateMethod; + assertEquals("private", sf.make()); + } + + private interface PrivateIntf { + String make(); + } + + public void testPrivateIntf() { + PrivateIntf p = () -> "foo"; + assertEquals("foo", p.make()); + } + + interface Op { + public T op(T a, T b); + } + + public void testBoxToObject() { + Op 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 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 = null; + Inner3(T t) { + this.t = t; + } + T m1() { + return t; + } + } + } + } + + public void testInnerClassMethodRef() { + Factory 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("Inner1.Inner2.Inner3")::m1; + assertEquals("Inner1.Inner2.Inner3", fs.make()); + + Factory fsi = new Inner1().new Inner2().new Inner3(100)::m1; + assertEquals(100, (int)fsi.make()); + } +}