/
ModifyAttributeTest.java
executable file
·132 lines (111 loc) · 5.36 KB
/
ModifyAttributeTest.java
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/*
* Copyright (c) 2017-2018 Bosch Software Innovations GmbH.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-2.0/index.php
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.signals.commands.things.modify;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.eclipse.ditto.signals.commands.things.assertions.ThingCommandAssertions.assertThat;
import static org.mutabilitydetector.unittesting.AllowedReason.provided;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.model.base.headers.DittoHeaders;
import org.eclipse.ditto.model.base.json.FieldType;
import org.eclipse.ditto.model.things.ThingTooLargeException;
import org.eclipse.ditto.signals.commands.things.TestConstants;
import org.eclipse.ditto.signals.commands.things.ThingCommand;
import org.eclipse.ditto.signals.commands.things.exceptions.AttributePointerInvalidException;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
import nl.jqno.equalsverifier.Warning;
/**
* Unit test for {@link ModifyAttribute}.
*/
public final class ModifyAttributeTest {
private static final JsonPointer KNOWN_JSON_POINTER = JsonFactory.newPointer("key1");
private static final JsonValue KNOWN_ATTRIBUTE = JsonFactory.newValue("attribute");
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(ThingCommand.JsonFields.TYPE, ModifyAttribute.TYPE)
.set(ThingCommand.JsonFields.JSON_THING_ID, TestConstants.Thing.THING_ID)
.set(ModifyAttribute.JSON_ATTRIBUTE, KNOWN_JSON_POINTER.toString())
.set(ModifyAttribute.JSON_ATTRIBUTE_VALUE, KNOWN_ATTRIBUTE)
.build();
@Test
public void assertImmutability() {
assertInstancesOf(ModifyAttribute.class,
areImmutable(),
provided(JsonPointer.class, JsonValue.class).areAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(ModifyAttribute.class)
.withRedefinedSuperclass()
.suppress(Warning.REFERENCE_EQUALITY)
.verify();
}
@Test
public void tryToCreateInstanceWithNullAttribute() {
assertThatExceptionOfType(NullPointerException.class)
.isThrownBy(() -> ModifyAttribute.of(TestConstants.Thing.THING_ID, KNOWN_JSON_POINTER, null,
TestConstants.EMPTY_DITTO_HEADERS))
.withMessage("The %s must not be null!", "new attribute")
.withNoCause();
}
@Test
public void tryToCreateInstanceWithNullJsonPointer() {
assertThatExceptionOfType(NullPointerException.class)
.isThrownBy(() -> ModifyAttribute.of(TestConstants.Thing.THING_ID, null, KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS))
.withMessage("The %s must not be null!", "key of the attribute to be modified")
.withNoCause();
}
@Test
public void tryToCreateInstanceWithEmptyJsonPointer() {
assertThatExceptionOfType(AttributePointerInvalidException.class)
.isThrownBy(() -> ModifyAttribute.of(TestConstants.Thing.THING_ID, JsonPointer.empty(), KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS))
.withNoCause();
}
@Test
public void tryToCreateInstanceWithValidArguments() {
ModifyAttribute.of(TestConstants.Thing.THING_ID, KNOWN_JSON_POINTER, KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void toJsonReturnsExpected() {
final ModifyAttribute underTest = ModifyAttribute.of(TestConstants.Thing.THING_ID,
KNOWN_JSON_POINTER, KNOWN_ATTRIBUTE, TestConstants.EMPTY_DITTO_HEADERS);
final JsonObject actualJson = underTest.toJson(FieldType.regularOrSpecial());
assertThat(actualJson).isEqualTo(KNOWN_JSON);
}
@Test
public void createInstanceFromValidJson() {
final ModifyAttribute underTest =
ModifyAttribute.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
assertThat(underTest.getId()).isEqualTo(TestConstants.Thing.THING_ID);
assertThat(underTest.getAttributePointer()).isEqualTo(KNOWN_JSON_POINTER);
assertThat(underTest.getAttributeValue()).isEqualTo(KNOWN_ATTRIBUTE);
}
@Test
public void modifyTooLargeAttribute() {
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < TestConstants.THING_SIZE_LIMIT_BYTES; i++) {
sb.append('a');
}
sb.append('b');
assertThatThrownBy(() -> ModifyAttribute.of("foo:bar", JsonPointer.of("foo"),
JsonValue.of(sb.toString()), DittoHeaders.empty()))
.isInstanceOf(ThingTooLargeException.class);
}
}