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EntityDescriptorTest.java
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EntityDescriptorTest.java
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/**
* Copyright (C) 2019 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.model.descriptors;
import cz.cvut.kbss.jopa.model.metamodel.Attribute;
import org.junit.jupiter.api.Test;
import java.net.URI;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
class EntityDescriptorTest {
private static final URI CONTEXT_ONE = URI.create("http://krizik.felk.cvut.cz/ontologies/jopa/contextOne");
private static final URI CONTEXT_TWO = URI.create("http://krizik.felk.cvut.cz/ontologies/jopa/contextTwo");
private static final String LANG = "en";
@Test
void fieldDescriptorByDefaultInheritsEntityContext() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
final Descriptor result = descriptor.getAttributeDescriptor(att);
assertEquals(CONTEXT_ONE, result.getContext());
}
@Test
void fieldDescriptorHasItsOwnContextWhenItIsSetForIt() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
descriptor.addAttributeContext(att.getJavaField(), CONTEXT_TWO);
final Descriptor result = descriptor.getAttributeDescriptor(att);
assertEquals(CONTEXT_TWO, result.getContext());
}
@Test
void fieldDescriptorByDefaultInheritsEntityLanguageTag() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor();
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
descriptor.setLanguage(LANG);
assertTrue(descriptor.hasLanguage());
final Descriptor result = descriptor.getAttributeDescriptor(att);
assertTrue(result.hasLanguage());
assertEquals(LANG, result.getLanguage());
}
@Test
void fieldDescriptorInheritsChangeOfLanguageTagFromEntityDescriptor() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor();
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
descriptor.setLanguage(LANG);
final String newLang = "cs";
descriptor.setLanguage(newLang);
final Descriptor result = descriptor.getAttributeDescriptor(att);
assertTrue(result.hasLanguage());
assertEquals(newLang, result.getLanguage());
}
@Test
void fieldDescriptorHasLanguageSetToItThroughEntityDescriptor() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor();
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
descriptor.setLanguage(LANG);
final String newLang = "cs";
descriptor.setAttributeLanguage(att.getJavaField(), newLang);
final Descriptor result = descriptor.getAttributeDescriptor(att);
assertTrue(result.hasLanguage());
assertEquals(newLang, result.getLanguage());
}
@Test
void twoEntityDescriptorsAreEqualWhenTheirFieldDescriptorsHaveTheSameContexts() throws Exception {
final EntityDescriptor dOne = new EntityDescriptor(CONTEXT_ONE);
final EntityDescriptor dTwo = new EntityDescriptor(CONTEXT_ONE);
dOne.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dTwo.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dOne.addAttributeDescriptor(TestClass.intAttField(), new FieldDescriptor(CONTEXT_ONE, TestClass.intAttField()));
dTwo.addAttributeDescriptor(TestClass.intAttField(), new FieldDescriptor(CONTEXT_ONE, TestClass.intAttField()));
assertEquals(dOne, dTwo);
assertEquals(dTwo, dOne);
assertEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void twoEntityDescriptorsAreNotEqualWhenTheyDifferInFieldContext() throws Exception {
final EntityDescriptor dOne = new EntityDescriptor(CONTEXT_ONE);
final EntityDescriptor dTwo = new EntityDescriptor(CONTEXT_ONE);
dOne.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dTwo.addAttributeContext(TestClass.stringAttField(), CONTEXT_ONE);
assertNotEquals(dOne, dTwo);
assertNotEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void hasLanguageReturnsTrueForLanguageSetExplicitlyToNull() {
final Descriptor descriptor = new EntityDescriptor();
assertFalse(descriptor.hasLanguage());
descriptor.setLanguage(null);
assertTrue(descriptor.hasLanguage());
assertNull(descriptor.getLanguage());
}
@Test
void gettingFieldDescriptorFromEntityDescriptorLeavesItsHasLanguageStatusEmpty() throws Exception {
final Descriptor descriptor = new EntityDescriptor();
final Attribute att = mock(Attribute.class);
when(att.getJavaField()).thenReturn(TestClass.stringAttField());
final Descriptor fieldDescriptor = descriptor.getAttributeDescriptor(att);
assertFalse(fieldDescriptor.hasLanguage());
}
@Test
void twoDescriptorsWithDifferentLanguageTagsAreNotEqual() throws Exception {
final Descriptor dOne = new EntityDescriptor(CONTEXT_ONE);
final Descriptor dTwo = new EntityDescriptor(CONTEXT_ONE);
dOne.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dTwo.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dOne.setLanguage("en");
dTwo.setLanguage("cs");
assertNotEquals(dOne, dTwo);
assertNotEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void twoDescriptorsWithDifferentAttributeLanguageTagsAreNotEqual() throws Exception {
final Descriptor dOne = new EntityDescriptor();
final Descriptor dTwo = new EntityDescriptor();
dOne.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dTwo.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dOne.setLanguage("en");
dTwo.setLanguage("en");
dOne.setAttributeLanguage(TestClass.stringAttField(), "en");
dTwo.setAttributeLanguage(TestClass.stringAttField(), "cs");
assertNotEquals(dOne, dTwo);
assertNotEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void twoDescriptorsWithSameAttributeLanguageTagsAreEqual() throws Exception {
final Descriptor dOne = new EntityDescriptor();
final Descriptor dTwo = new EntityDescriptor();
dOne.setAttributeLanguage(TestClass.stringAttField(), "en");
dTwo.setAttributeLanguage(TestClass.stringAttField(), "en");
assertEquals(dOne, dTwo);
assertEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void twoDescriptorsWithNullLanguageTagSetAreEqual() throws Exception {
final Descriptor dOne = new EntityDescriptor();
final Descriptor dTwo = new EntityDescriptor();
dOne.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dTwo.addAttributeContext(TestClass.stringAttField(), CONTEXT_TWO);
dOne.setLanguage(null);
dTwo.setLanguage(null);
assertEquals(dOne, dTwo);
assertEquals(dOne.hashCode(), dTwo.hashCode());
}
@Test
void anyLanguageSetsLanguageTagToSupportAny() {
final Descriptor descriptor = new EntityDescriptor();
assertFalse(descriptor.hasLanguage());
descriptor.anyLanguage();
assertTrue(descriptor.hasLanguage());
assertNull(descriptor.getLanguage());
}
@Test
void addAttributeDescriptorProvidesCorrectContextOnRetrieval() throws Exception {
final EntityDescriptor dOne = new EntityDescriptor(CONTEXT_ONE);
dOne.addAttributeDescriptor(TestClass.intAttField(), new FieldDescriptor(CONTEXT_TWO, TestClass.intAttField()));
assertFalse(dOne.getAttributeDescriptors().isEmpty());
assertEquals(CONTEXT_TWO, dOne.getAttributeDescriptors().iterator().next().getContext());
}
@Test
void equalsHandlesRecursiveDescriptors() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
descriptor.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"), descriptor);
final EntityDescriptor descriptorTwo = new EntityDescriptor(CONTEXT_ONE);
descriptorTwo.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"), descriptorTwo);
assertEquals(descriptor, descriptorTwo);
}
@SuppressWarnings("unused")
private static class RecursiveClass {
private RecursiveClass parent;
}
@Test
void equalsHandlesOneRecursiveDescriptorAndOtherNormal() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
descriptor.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"), descriptor);
final EntityDescriptor descriptorTwo = new EntityDescriptor(CONTEXT_ONE);
descriptorTwo.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"),
new EntityDescriptor(CONTEXT_ONE));
// The first descriptor is recursive, while the second isn't, so it has only two levels
assertNotEquals(descriptor, descriptorTwo);
}
@Test
void equalsReturnsFalseWhenFieldDescriptorCountDiffers() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
descriptor.setLanguage("en");
descriptor.setAttributeLanguage(TestClass.stringAttField(), "cs");
final EntityDescriptor descriptorTwo = new EntityDescriptor(CONTEXT_ONE);
descriptor.setLanguage("en");
assertNotEquals(descriptor, descriptorTwo);
}
@Test
void hashCodeHandlesRecursiveDescriptors() throws Exception {
final EntityDescriptor descriptor = new EntityDescriptor(CONTEXT_ONE);
descriptor.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"), descriptor);
final EntityDescriptor descriptorTwo = new EntityDescriptor(CONTEXT_ONE);
descriptorTwo.addAttributeDescriptor(RecursiveClass.class.getDeclaredField("parent"), descriptorTwo);
assertEquals(descriptor.hashCode(), descriptorTwo.hashCode());
}
}