1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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).
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23 
24 /*
25  * @test
26  * @summary Shutdown tests
27  * @build KullaTesting TestingInputStream
28  * @run testng ShutdownTest
29  */
30 
31 import java.util.function.Consumer;
32 
33 import jdk.jshell.JShell;
34 import jdk.jshell.JShell.Subscription;
35 import org.testng.annotations.Test;
36 
37 import static org.testng.Assert.assertEquals;
38 
39 @Test
40 public class ShutdownTest extends KullaTesting {
41 
42     int shutdownCount;
43 
shutdownCounter(JShell state)44     void shutdownCounter(JShell state) {
45         ++shutdownCount;
46     }
47 
48     @Test(enabled = false) //TODO 8139873
testExit()49     public void testExit() {
50         shutdownCount = 0;
51         getState().onShutdown(this::shutdownCounter);
52         assertEval("System.exit(1);");
53         assertEquals(shutdownCount, 1);
54     }
55 
testCloseCallback()56     public void testCloseCallback() {
57         shutdownCount = 0;
58         getState().onShutdown(this::shutdownCounter);
59         getState().close();
60         assertEquals(shutdownCount, 1);
61     }
62 
testCloseUnsubscribe()63     public void testCloseUnsubscribe() {
64         shutdownCount = 0;
65         Subscription token = getState().onShutdown(this::shutdownCounter);
66         getState().unsubscribe(token);
67         getState().close();
68         assertEquals(shutdownCount, 0);
69     }
70 
testTwoShutdownListeners()71     public void testTwoShutdownListeners() {
72         ShutdownListener listener1 = new ShutdownListener();
73         ShutdownListener listener2 = new ShutdownListener();
74         Subscription subscription1 = getState().onShutdown(listener1);
75         Subscription subscription2 = getState().onShutdown(listener2);
76         getState().unsubscribe(subscription1);
77         getState().close();
78 
79         assertEquals(listener1.getEvents(), 0, "Checking got events");
80         assertEquals(listener2.getEvents(), 1, "Checking got events");
81 
82         getState().close();
83 
84         assertEquals(listener1.getEvents(), 0, "Checking got events");
85         assertEquals(listener2.getEvents(), 1, "Checking got events");
86 
87         getState().unsubscribe(subscription2);
88     }
89 
90     @Test(expectedExceptions = IllegalStateException.class)
testCloseException()91     public void testCloseException() {
92         getState().close();
93         getState().eval("45");
94     }
95 
96     @Test(expectedExceptions = IllegalStateException.class,
97           enabled = false) //TODO 8139873
testShutdownException()98     public void testShutdownException() {
99         assertEval("System.exit(0);");
100         getState().eval("45");
101     }
102 
103     @Test(expectedExceptions = NullPointerException.class)
testNullCallback()104     public void testNullCallback() {
105         getState().onShutdown(null);
106     }
107 
108     @Test(expectedExceptions = IllegalStateException.class)
testSubscriptionAfterClose()109     public void testSubscriptionAfterClose() {
110         getState().close();
111         getState().onShutdown(e -> {});
112     }
113 
114     @Test(expectedExceptions = IllegalStateException.class,
115           enabled = false) //TODO 8139873
testSubscriptionAfterShutdown()116     public void testSubscriptionAfterShutdown() {
117         assertEval("System.exit(0);");
118         getState().onShutdown(e -> {});
119     }
120 
121     private static class ShutdownListener implements Consumer<JShell> {
122         private int count;
123 
124         @Override
accept(JShell shell)125         public void accept(JShell shell) {
126             ++count;
127         }
128 
getEvents()129         public int getEvents() {
130             return count;
131         }
132     }
133 }
134