1 /*

     2  * Copyright (c) 2012, 2013, 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 import org.testng.annotations.Test;

    26 

    27 import static org.testng.Assert.assertEquals;

    28 

    29 /**

    30  * @author Robert Field

    31  */

    32 

    33 @Test

    34 public class MethodReferenceTestKinds extends MethodReferenceTestKindsSup {

    35 

    36     interface S0 { String get(); }

    37     interface S1 { String get(MethodReferenceTestKinds x); }

    38     interface S2 { String get(MethodReferenceTestKinds x, MethodReferenceTestKinds y); }

    39 

    40     interface SXN0 { MethodReferenceTestKindsBase make(MethodReferenceTestKinds x); }

    41     interface SXN1 { MethodReferenceTestKindsBase make(MethodReferenceTestKinds x, String str); }

    42 

    43     interface SN0 { MethodReferenceTestKindsBase make(); }

    44     interface SN1 { MethodReferenceTestKindsBase make(String x); }

    45 

    46     class In extends MethodReferenceTestKindsBase {

    47         In(String val) {

    48             this.val = val;

    49         }

    50 

    51         In() {

    52             this("blank");

    53         }

    54     }

    55 

    56     String instanceMethod0() { return "IM:0-" + this; }

    57     String instanceMethod1(MethodReferenceTestKinds x) { return "IM:1-" + this + x; }

    58 

    59     static String staticMethod0() { return "SM:0"; }

    60     static String staticMethod1(MethodReferenceTestKinds x) { return "SM:1-" + x; }

    61 

    62     MethodReferenceTestKinds(String val) {

    63         super(val);

    64     }

    65 

    66     MethodReferenceTestKinds() {

    67         super("blank");

    68     }

    69 

    70     MethodReferenceTestKinds inst(String val) {

    71         return new MethodReferenceTestKinds(val);

    72     }

    73 

    74     public void testMRBound() {

    75         S0 var = this::instanceMethod0;

    76         assertEquals(var.get(), "IM:0-MethodReferenceTestKinds(blank)");

    77     }

    78 

    79     public void testMRBoundArg() {

    80         S1 var = this::instanceMethod1;

    81         assertEquals(var.get(inst("arg")), "IM:1-MethodReferenceTestKinds(blank)MethodReferenceTestKinds(arg)");

    82     }

    83 

    84     public void testMRUnbound() {

    85         S1 var = MethodReferenceTestKinds::instanceMethod0;

    86         assertEquals(var.get(inst("rcvr")), "IM:0-MethodReferenceTestKinds(rcvr)");

    87     }

    88 

    89     public void testMRUnboundArg() {

    90         S2 var = MethodReferenceTestKinds::instanceMethod1;

    91         assertEquals(var.get(inst("rcvr"), inst("arg")), "IM:1-MethodReferenceTestKinds(rcvr)MethodReferenceTestKinds(arg)");

    92     }

    93 

    94     public void testMRSuper() {

    95         S0 var = super::instanceMethod0;

    96         assertEquals(var.get(), "SIM:0-MethodReferenceTestKinds(blank)");

    97     }

    98 

    99     public void testMRSuperArg() {

   100         S1 var = super::instanceMethod1;

   101         assertEquals(var.get(inst("arg")), "SIM:1-MethodReferenceTestKinds(blank)MethodReferenceTestKinds(arg)");

   102     }

   103 

   104     public void testMRStatic() {

   105         S0 var = MethodReferenceTestKinds::staticMethod0;

   106         assertEquals(var.get(), "SM:0");

   107     }

   108 

   109     public void testMRStaticArg() {

   110         S1 var = MethodReferenceTestKinds::staticMethod1;

   111         assertEquals(var.get(inst("arg")), "SM:1-MethodReferenceTestKinds(arg)");

   112     }

   113 

   114     public void testMRTopLevel() {

   115         SN0 var = MethodReferenceTestKindsBase::new;

   116         assertEquals(var.make().toString(), "MethodReferenceTestKindsBase(blank)");

   117     }

   118 

   119     public void testMRTopLevelArg() {

   120         SN1 var = MethodReferenceTestKindsBase::new;

   121         assertEquals(var.make("name").toString(), "MethodReferenceTestKindsBase(name)");

   122     }

   123 /* unbound inner case not supported anymore (dropped by EG)

   124     public void testMRUnboundInner() {

   125         SXN0 var = MethodReferenceTestKinds.In::new;

   126         assertEquals(var.make(inst("out")).toString(), "In(blank)");

   127     }

   128 

   129    public void testMRUnboundInnerArg() {

   130         SXN1 var = MethodReferenceTestKinds.In::new;

   131         assertEquals(var.make(inst("out"), "name").toString(), "In(name)");

   132     }

   133 */

   134     public void testMRImplicitInner() {

   135         SN0 var = MethodReferenceTestKinds.In::new;

   136         assertEquals(var.make().toString(), "In(blank)");

   137     }

   138 

   139     public void testMRImplicitInnerArg() {

   140         SN1 var = MethodReferenceTestKinds.In::new;

   141         assertEquals(var.make("name").toString(), "In(name)");

   142     }

   143 

   144 }

   145 

   146 

   147 class MethodReferenceTestKindsBase {

   148     String val = "unset";

   149 

   150     public String toString() {

   151         return getClass().getSimpleName() + "(" + val + ")";

   152     }

   153 

   154     MethodReferenceTestKindsBase(String val) {

   155         this.val = val;

   156     }

   157 

   158     MethodReferenceTestKindsBase() {

   159         this("blank");

   160     }

   161 

   162 }

   163 

   164 class MethodReferenceTestKindsSup extends MethodReferenceTestKindsBase {

   165     String instanceMethod0() { return "SIM:0-" + this; }

   166     String instanceMethod1(MethodReferenceTestKinds x) { return "SIM:1-" + this + x; }

   167 

   168     MethodReferenceTestKindsSup(String val) {

   169         super(val);

   170     }

   171 

   172 }

   173