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ImmutableSearchResultTest.java
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ImmutableSearchResultTest.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.thingsearch.model;
import static org.assertj.core.api.Assertions.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.JsonArray;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.base.model.json.Jsonifiable;
import org.junit.Ignore;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link ImmutableSearchResult}
*/
public final class ImmutableSearchResultTest {
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(ImmutableSearchResult.class)
.usingGetClass()
.verify();
}
@Test
public void assertImmutability() {
assertInstancesOf(ImmutableSearchResult.class,
areImmutable(),
provided(JsonArray.class).areAlsoImmutable());
}
@Test
public void constructorAndGetters() {
final JsonArray items = JsonFactory.newArray("[1,2,3]");
final long nextPageOffset = 10L;
final SearchResult searchResult = ImmutableSearchResult.of(items, nextPageOffset, null);
assertThat(searchResult.getItems()).isEqualTo(items);
assertThat(searchResult.getNextPageOffset()).contains(nextPageOffset);
assertThat(searchResult.hasNextPage()).isTrue();
}
@Test
public void emptySearchResult() {
final SearchResult searchResult = ImmutableSearchResult.empty();
assertThat(searchResult.isEmpty()).isTrue();
assertThat(searchResult.getSize()).isZero();
assertThat(searchResult.getItems()).isEqualTo(JsonFactory.newArray());
assertThat(searchResult.getNextPageOffset()).contains(SearchResult.NO_NEXT_PAGE);
assertThat(searchResult.hasNextPage()).isFalse();
}
@Test
public void toJsonReturnsExpected() {
final JsonArray items = JsonFactory.newArrayBuilder()
.add(1, 2, 3)
.build();
final long nextPageOffset = 10L;
final JsonObject expected = JsonFactory.newObjectBuilder()
.set(SearchResult.JsonFields.ITEMS, items)
.set(SearchResult.JsonFields.NEXT_PAGE_OFFSET, nextPageOffset)
.build();
final Jsonifiable underTest = ImmutableSearchResult.of(items, nextPageOffset, null);
assertThat(underTest.toJson()).isEqualTo(expected);
}
@Test
public void toJsonWithAllFieldTypes() {
final String itemsArray = "[1,2,3]";
final JsonArray items = JsonFactory.newArray(itemsArray);
final long nextPageOffset = 10L;
final ImmutableSearchResult searchResult = ImmutableSearchResult.of(items, nextPageOffset, null);
final String jsonStr = searchResult.toJsonString(FieldType.regularOrSpecial());
assertThat(jsonStr).isEqualTo("{\"items\":" + itemsArray + ",\"nextPageOffset\":" + nextPageOffset + "}");
}
@Test
public void toJsonWithRegularFieldTypes() {
final String itemsArray = "[1,2,3]";
final JsonArray items = JsonFactory.newArray(itemsArray);
final long nextPageOffset = 10L;
final ImmutableSearchResult searchResult = ImmutableSearchResult.of(items, nextPageOffset, null);
final String jsonStr = searchResult.toJsonString();
assertThat(jsonStr).isEqualTo("{\"items\":" + itemsArray + ",\"nextPageOffset\":" + nextPageOffset + "}");
}
@Test
public void emptyToJsonWithAllFieldTypes() {
final SearchResult searchResult = ImmutableSearchResult.empty();
final String jsonStr = searchResult.toJsonString(FieldType.regularOrSpecial());
assertThat(jsonStr).isEqualTo("{\"items\":[],\"nextPageOffset\":-1}");
}
@Test
public void fromJson() {
final String itemsArray = "[1,2,3]";
final long nextPageOffset = 10L;
final String jsonStr = "{\"items\":" + itemsArray + ",\"nextPageOffset\":" + nextPageOffset + "}";
final JsonObject jsonObject = JsonFactory.newObject(jsonStr);
final SearchResult searchResult = ImmutableSearchResult.fromJson(jsonObject);
assertThat(searchResult.getItems()).isEqualTo(JsonFactory.newArray(itemsArray));
assertThat(searchResult.getNextPageOffset()).contains(nextPageOffset);
}
@Test
public void fromEmptyJson() {
final String jsonStr = "{\"items\":[],\"nextPageOffset\":-1}";
final JsonObject jsonObject = JsonFactory.newObject(jsonStr);
final SearchResult searchResult = ImmutableSearchResult.fromJson(jsonObject);
assertThat(searchResult).isEqualTo(ImmutableSearchResult.empty());
}
@Test
public void ensureSearchResultNewBuilderWorks() {
final String itemsArray = "[1,2,3]";
final JsonArray items = JsonFactory.newArray(itemsArray);
final long nextPageOffset = 10L;
final ImmutableSearchResult searchResult = ImmutableSearchResult.of(items, nextPageOffset, null);
final SearchResultBuilder searchResultBuilder = SearchResult.newBuilder()
.addAll(items)
.nextPageOffset(nextPageOffset);
assertThat(searchResult).isEqualTo(searchResultBuilder.build());
}
@Test
public void ensureRelationsToBuilderWorks() {
final String itemsArray = "[1,2,3]";
final JsonArray items = JsonFactory.newArray(itemsArray);
final long nextPageOffset = 10L;
final ImmutableSearchResult searchResult = ImmutableSearchResult.of(items, nextPageOffset, null);
DittoJsonAssertions.assertThat(searchResult).isEqualTo(searchResult.toBuilder().build());
}
}