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ModifyAttributeTest.java
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ModifyAttributeTest.java
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/*
* 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.things.model.signals.commands.modify;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.eclipse.ditto.things.model.signals.commands.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.assertj.core.api.Assertions;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonKeyInvalidException;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.ThingTooLargeException;
import org.eclipse.ditto.things.model.signals.commands.TestConstants;
import org.eclipse.ditto.things.model.signals.commands.ThingCommand;
import org.eclipse.ditto.things.model.signals.commands.exceptions.AttributePointerInvalidException;
import org.junit.Ignore;
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.toString())
.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, ThingId.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))
.withNoCause();
}
@Test
public void tryToCreateInstanceWithNullJsonPointer() {
assertThatExceptionOfType(NullPointerException.class)
.isThrownBy(() -> ModifyAttribute.of(TestConstants.Thing.THING_ID, null, KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS))
.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, TestConstants.Pointer.VALID_JSON_POINTER, KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS);
}
@Test(expected = JsonKeyInvalidException.class)
public void tryToCreateInstanceWithInvalidAttributePointer() {
ModifyAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.INVALID_JSON_POINTER, KNOWN_ATTRIBUTE,
TestConstants.EMPTY_DITTO_HEADERS);
}
@Test(expected = JsonKeyInvalidException.class)
public void createInstanceFromInvalidJsonValue() {
final JsonValue invalid = JsonValue.of(JsonObject.of("{\"bar/baz\":false}"));
ModifyAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.VALID_JSON_POINTER,
invalid, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void tryToCreateInstanceWithValidJsonObjectAsValue() {
final JsonValue valid = JsonValue.of(JsonObject.of("{\"bar.baz\":false}"));
ModifyAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.VALID_JSON_POINTER,
valid, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test(expected = AttributePointerInvalidException.class)
public void createInstanceWithEmptyPointer() {
ModifyAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.EMPTY_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());
DittoJsonAssertions.assertThat(actualJson).isEqualTo(KNOWN_JSON);
}
@Test
public void createInstanceFromValidJson() {
final ModifyAttribute underTest =
ModifyAttribute.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
Assertions.assertThat((CharSequence) underTest.getEntityId()).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(ThingId.of("foo", "bar"), JsonPointer.of("foo"),
JsonValue.of(sb.toString()), DittoHeaders.empty()))
.isInstanceOf(ThingTooLargeException.class);
}
}