binding/yang-binding/src/test/java/org/opendaylight/yangtools/yang/binding/CodeHelpersTest.java

   1 /*
   2  * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.yang.binding;
   9
  10 import static org.hamcrest.CoreMatchers.allOf;
  11 import static org.hamcrest.CoreMatchers.endsWith;
  12 import static org.hamcrest.CoreMatchers.instanceOf;
  13 import static org.hamcrest.CoreMatchers.startsWith;
  14 import static org.hamcrest.MatcherAssert.assertThat;
  15 import static org.junit.Assert.assertNull;
  16 import static org.junit.Assert.assertSame;
  17 import static org.junit.Assert.assertThrows;
  18
  19 import java.util.Collections;
  20 import java.util.List;
  21 import java.util.Set;
  22 import org.junit.Test;
  23
  24 public class CodeHelpersTest {
  25     @Test
  26     public void testCheckedFieldCast() {
  27         assertNull(CodeHelpers.checkFieldCast(CodeHelpersTest.class, "foo", null));
  28         assertSame(this, CodeHelpers.checkFieldCast(CodeHelpersTest.class, "foo", this));
  29
  30         final IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
  31             () -> CodeHelpers.checkFieldCast(CodeHelpersTest.class, "foo", new Object()));
  32         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
  33     }
  34
  35     @Test
  36     public void testCheckedFieldCastIdentity() {
  37         assertNull(CodeHelpers.checkFieldCastIdentity(Identity.class, "foo", null));
  38         assertSame(Identity.class, CodeHelpers.checkFieldCastIdentity(Identity.class, "foo", Identity.class));
  39         assertSame(DerivedIdentity.class, CodeHelpers.checkFieldCastIdentity(Identity.class, "foo",
  40             DerivedIdentity.class));
  41
  42         IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
  43             () -> CodeHelpers.checkFieldCastIdentity(Identity.class, "foo", new Object()));
  44         assertThat(iae.getMessage(), allOf(
  45             startsWith("Invalid input value \"java.lang.Object"),
  46             endsWith("\" for property \"foo\"")));
  47
  48         iae = assertThrows(IllegalArgumentException.class,
  49             () -> CodeHelpers.checkFieldCastIdentity(Identity.class, "foo", BaseIdentity.class));
  50         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
  51     }
  52
  53     @Test
  54     public void testCheckListFieldCast() {
  55         assertNull(CodeHelpers.checkListFieldCast(CodeHelpersTest.class, "foo", null));
  56         assertSame(List.of(), CodeHelpers.checkListFieldCast(CodeHelpersTest.class, "foo", List.of()));
  57         final var list = List.of(this);
  58         assertSame(list, CodeHelpers.checkListFieldCast(CodeHelpersTest.class, "foo", list));
  59
  60         IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
  61             () -> CodeHelpers.checkListFieldCast(CodeHelpersTest.class, "foo", Collections.singletonList(null)));
  62         assertThat(iae.getCause(), instanceOf(NullPointerException.class));
  63
  64         iae = assertThrows(IllegalArgumentException.class,
  65             () -> CodeHelpers.checkListFieldCast(CodeHelpersTest.class, "foo", List.of(new Object())));
  66         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
  67     }
  68
  69     @Test
  70     public void testCheckListFieldCastIdentity() {
  71         assertNull(CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", null));
  72         assertSame(List.of(), CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", List.of()));
  73
  74         final var list = List.of(Identity.class);
  75         assertSame(list, CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", list));
  76         final var derivedList = List.of(DerivedIdentity.class);
  77         assertSame(derivedList, CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", derivedList));
  78
  79         IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
  80             () -> CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", Collections.singletonList(null)));
  81         assertThat(iae.getCause(), instanceOf(NullPointerException.class));
  82
  83         iae = assertThrows(IllegalArgumentException.class,
  84             () -> CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", List.of(new Object())));
  85         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
  86
  87         iae = assertThrows(IllegalArgumentException.class,
  88             () -> CodeHelpers.checkListFieldCastIdentity(Identity.class, "foo", List.of(BaseIdentity.class)));
  89         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
  90     }
  91
  92     @Test
  93     public void testCheckSetFieldCast() {
  94         assertNull(CodeHelpers.checkSetFieldCast(CodeHelpersTest.class, "foo", null));
  95         assertSame(Set.of(), CodeHelpers.checkSetFieldCast(CodeHelpersTest.class, "foo", Set.of()));
  96         final var list = Set.of(this);
  97         assertSame(list, CodeHelpers.checkSetFieldCast(CodeHelpersTest.class, "foo", list));
  98
  99         IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
 100             () -> CodeHelpers.checkSetFieldCast(CodeHelpersTest.class, "foo", Collections.singleton(null)));
 101         assertThat(iae.getCause(), instanceOf(NullPointerException.class));
 102
 103         iae = assertThrows(IllegalArgumentException.class,
 104             () -> CodeHelpers.checkSetFieldCast(CodeHelpersTest.class, "foo", Set.of(new Object())));
 105         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
 106     }
 107
 108     @Test
 109     public void testCheckSetFieldCastIdentity() {
 110         assertNull(CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", null));
 111         assertSame(Set.of(), CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", Set.of()));
 112
 113         final var set = Set.of(Identity.class);
 114         assertSame(set, CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", set));
 115         final var derivedSet = Set.of(DerivedIdentity.class);
 116         assertSame(derivedSet, CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", derivedSet));
 117
 118         IllegalArgumentException iae = assertThrows(IllegalArgumentException.class,
 119             () -> CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", Collections.singleton(null)));
 120         assertThat(iae.getCause(), instanceOf(NullPointerException.class));
 121
 122         iae = assertThrows(IllegalArgumentException.class,
 123             () -> CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", Set.of(new Object())));
 124         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
 125
 126         iae = assertThrows(IllegalArgumentException.class,
 127             () -> CodeHelpers.checkSetFieldCastIdentity(Identity.class, "foo", Set.of(BaseIdentity.class)));
 128         assertThat(iae.getCause(), instanceOf(ClassCastException.class));
 129     }
 130
 131     private interface Identity extends BaseIdentity {
 132
 133     }
 134
 135     private interface DerivedIdentity extends Identity {
 136
 137     }
 138 }