1/*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * @test
26 * @bug 8003639
27 * @summary convert lambda testng tests to jtreg and add them
28 * @run testng LambdaTranslationTest1
29 */
30
31import org.testng.annotations.Test;
32
33import static org.testng.Assert.assertEquals;
34
35@Test
36public class LambdaTranslationTest1 extends LT1Sub {
37
38    String cntxt = "blah";
39
40    private static final ThreadLocal<Object> result = new ThreadLocal<>();
41
42    private static void setResult(Object s) { result.set(s); }
43    private static void appendResult(Object s) { result.set(result.get().toString() + s); }
44
45    private static void assertResult(String expected) {
46        assertEquals(result.get().toString(), expected);
47    }
48
49    static Integer count(String s) {
50        return s.length();
51    }
52
53    static int icount(String s) {
54        return s.length();
55    }
56
57    static void eye(Integer i) {
58        setResult(String.format("I:%d", i));
59    }
60
61    static void ieye(int i) {
62        setResult(String.format("i:%d", i));
63    }
64
65    static void deye(double d) {
66        setResult(String.format("d:%f", d));
67    }
68
69    public void testLambdas() {
70        TBlock<Object> b = t -> {setResult("Sink0::" + t);};
71        b.apply("Howdy");
72        assertResult("Sink0::Howdy");
73
74        TBlock<String> b1 = t -> {setResult("Sink1::" + t);};
75        b1.apply("Rowdy");
76        assertResult("Sink1::Rowdy");
77
78        for (int i = 5; i < 10; ++i) {
79            TBlock<Integer> b2 = t -> {setResult("Sink2::" + t);};
80            b2.apply(i);
81            assertResult("Sink2::" + i);
82        }
83
84        TBlock<Integer> b3 = t -> {setResult("Sink3::" + t);};
85        for (int i = 900; i > 0; i -= 100) {
86            b3.apply(i);
87            assertResult("Sink3::" + i);
88        }
89
90        cntxt = "blah";
91        TBlock<String> b4 = t -> {setResult(String.format("b4: %s .. %s", cntxt, t));};
92        b4.apply("Yor");
93        assertResult("b4: blah .. Yor");
94
95        String flaw = "flaw";
96        TBlock<String> b5 = t -> {setResult(String.format("b5: %s .. %s", flaw, t));};
97        b5.apply("BB");
98        assertResult("b5: flaw .. BB");
99
100        cntxt = "flew";
101        TBlock<String> b6 = t -> {setResult(String.format("b6: %s .. %s .. %s", t, cntxt, flaw));};
102        b6.apply("flee");
103        assertResult("b6: flee .. flew .. flaw");
104
105        TBlock<String> b7 = t -> {setResult(String.format("b7: %s %s", t, this.protectedSuperclassMethod()));};
106        b7.apply("this:");
107        assertResult("b7: this: instance:flew");
108
109        TBlock<String> b8 = t -> {setResult(String.format("b8: %s %s", t, super.protectedSuperclassMethod()));};
110        b8.apply("super:");
111        assertResult("b8: super: I'm the sub");
112
113        TBlock<String> b7b = t -> {setResult(String.format("b9: %s %s", t, protectedSuperclassMethod()));};
114        b7b.apply("implicit this:");
115        assertResult("b9: implicit this: instance:flew");
116
117        TBlock<Object> b10 = t -> {setResult(String.format("b10: new LT1Thing: %s", (new LT1Thing(t)).str));};
118        b10.apply("thing");
119        assertResult("b10: new LT1Thing: thing");
120
121        TBlock<Object> b11 = t -> {setResult(String.format("b11: %s", (new LT1Thing(t) {
122            String get() {
123                return "*" + str.toString() + "*";
124            }
125        }).get()));};
126        b11.apply(999);
127        assertResult("b11: *999*");
128    }
129
130    public void testMethodRefs() {
131        LT1IA ia = LambdaTranslationTest1::eye;
132        ia.doit(1234);
133        assertResult("I:1234");
134
135        LT1IIA iia = LambdaTranslationTest1::ieye;
136        iia.doit(1234);
137        assertResult("i:1234");
138
139        LT1IA da = LambdaTranslationTest1::deye;
140        da.doit(1234);
141        assertResult("d:1234.000000");
142
143        LT1SA a = LambdaTranslationTest1::count;
144        assertEquals((Integer) 5, a.doit("howdy"));
145
146        a = LambdaTranslationTest1::icount;
147        assertEquals((Integer) 6, a.doit("shower"));
148    }
149
150    public void testInner() throws Exception {
151        (new In()).doInner();
152    }
153
154    protected String protectedSuperclassMethod() {
155        return "instance:" + cntxt;
156    }
157
158    private class In {
159
160        private int that = 1234;
161
162        void doInner() {
163            TBlock<String> i4 = t -> {setResult(String.format("i4: %d .. %s", that, t));};
164            i4.apply("=1234");
165            assertResult("i4: 1234 .. =1234");
166
167            TBlock<String> i5 = t -> {setResult(""); appendResult(t); appendResult(t);};
168            i5.apply("fruit");
169            assertResult("fruitfruit");
170
171            cntxt = "human";
172            TBlock<String> b4 = t -> {setResult(String.format("b4: %s .. %s", cntxt, t));};
173            b4.apply("bin");
174            assertResult("b4: human .. bin");
175
176            final String flaw = "flaw";
177
178/**
179 Callable<String> c5 = () ->  "["+flaw+"]" ;
180 System.out.printf("c5: %s\n", c5.call() );
181 **/
182
183            TBlock<String> b5 = t -> {setResult(String.format("b5: %s .. %s", flaw, t));};
184            b5.apply("BB");
185            assertResult("b5: flaw .. BB");
186
187            cntxt = "borg";
188            TBlock<String> b6 = t -> {setResult(String.format("b6: %s .. %s .. %s", t, cntxt, flaw));};
189            b6.apply("flee");
190            assertResult("b6: flee .. borg .. flaw");
191
192            TBlock<String> b7b = t -> {setResult(String.format("b7b: %s %s", t, protectedSuperclassMethod()));};
193            b7b.apply("implicit outer this");
194            assertResult("b7b: implicit outer this instance:borg");
195
196            /**
197             TBlock<Object> b9 = t -> { System.out.printf("New: %s\n", (new LT1Thing(t)).str); };
198             b9.apply("thing");
199
200             TBlock<Object> ba = t -> { System.out.printf("Def: %s\n", (new LT1Thing(t) { String get() { return "*" + str.toString() +"*";}}).get() ); };
201             ba.apply(999);
202
203             */
204        }
205    }
206}
207
208class LT1Sub {
209    protected String protectedSuperclassMethod() {
210        return "I'm the sub";
211    }
212}
213
214class LT1Thing {
215    final Object str;
216
217    LT1Thing(Object s) {
218        str = s;
219    }
220}
221
222interface LT1SA {
223    Integer doit(String s);
224}
225
226interface LT1IA {
227    void doit(int i);
228}
229
230interface LT1IIA {
231    void doit(Integer i);
232}
233