-
Notifications
You must be signed in to change notification settings - Fork 214
/
ImmutableJsonNullTest.java
executable file
·72 lines (56 loc) · 2.4 KB
/
ImmutableJsonNullTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/*
* Copyright (c) 2017 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.json;
import static org.eclipse.ditto.json.assertions.DittoJsonAssertions.assertThat;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.lang.ref.SoftReference;
import org.assertj.core.api.Assertions;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.junit.Ignore;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link ImmutableJsonNull}.
*/
public class ImmutableJsonNullTest {
@Test
public void assertImmutability() {
assertInstancesOf(ImmutableJsonNull.class, areImmutable());
}
@Test
public void testHashCodeAndEquals() {
final SoftReference<String> red = new SoftReference<>("red");
final SoftReference<String> black = new SoftReference<>("black");
EqualsVerifier.forClass(ImmutableJsonNull.class)
.withPrefabValues(SoftReference.class, red, black)
.withRedefinedSuperclass()
.verify();
final JsonValue green = ImmutableJsonNull.getInstance();
final JsonValue blue = ImmutableJsonNull.getInstance();
DittoJsonAssertions.assertThat(green).isEqualTo(blue);
final ImmutableJsonArrayNull nullArray = ImmutableJsonArrayNull.getInstance();
Assertions.assertThat(green.equals(nullArray)).isTrue();
}
@Test
public void nullBehavesAsExpected() {
final JsonValue underTest = ImmutableJsonNull.getInstance();
DittoJsonAssertions.assertThat(underTest).isArray();
DittoJsonAssertions.assertThat(underTest).isNotBoolean();
DittoJsonAssertions.assertThat(underTest).isNullLiteral();
DittoJsonAssertions.assertThat(underTest).isNotNumber();
DittoJsonAssertions.assertThat(underTest).isObject();
DittoJsonAssertions.assertThat(underTest).isNotString();
assertThat(underTest.toString()).isEqualTo("null");
}
}