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// Copyright (C) 2020 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.acceptance.api.change;
import static com.google.common.truth.Truth.assertThat;
import static com.google.gerrit.testing.GerritJUnit.assertThrows;
import com.google.gerrit.acceptance.AbstractDaemonTest;
import com.google.gerrit.extensions.annotations.Exports;
import com.google.gerrit.extensions.common.ChangeInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.index.query.Matchable;
import com.google.gerrit.index.query.OperatorPredicate;
import com.google.gerrit.index.query.Predicate;
import com.google.gerrit.index.query.QueryParseException;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.query.change.ChangeData;
import com.google.gerrit.server.query.change.ChangeQueryBuilder;
import com.google.gerrit.server.restapi.change.QueryChanges;
import com.google.inject.AbstractModule;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.util.List;
import org.junit.Test;
public class PluginOperatorsIT extends AbstractDaemonTest {
@Inject private Provider<QueryChanges> queryChangesProvider;
@Test
public void getChangeWithIsOperator() throws Exception {
QueryChanges queryChanges = queryChangesProvider.get();
queryChanges.addQuery("is:changeNumberEven_myplugin");
String oddChangeId = createChange().getChangeId();
String evenChangeId = createChange().getChangeId();
BadRequestException exception =
assertThrows(BadRequestException.class, () -> getChanges(queryChanges));
assertThat(exception)
.hasMessageThat()
.isEqualTo("Unrecognized value: changeNumberEven_myplugin");
try (AutoCloseable ignored = installPlugin("myplugin", IsOperatorModule.class)) {
List<?> changes = getChanges(queryChanges);
assertThat(changes).hasSize(1);
ChangeInfo c = (ChangeInfo) changes.get(0);
String outputChangeId = c.changeId;
assertThat(outputChangeId).isEqualTo(evenChangeId);
assertThat(outputChangeId).isNotEqualTo(oddChangeId);
}
}
protected static class IsOperatorModule extends AbstractModule {
@Override
public void configure() {
bind(ChangeQueryBuilder.ChangeIsOperandFactory.class)
.annotatedWith(Exports.named("changeNumberEven"))
.to(SampleIsOperand.class);
}
}
private static class SampleIsOperand implements ChangeQueryBuilder.ChangeIsOperandFactory {
@Override
public Predicate<ChangeData> create(ChangeQueryBuilder builder) throws QueryParseException {
return new IsSamplePredicate();
}
}
private static class IsSamplePredicate extends OperatorPredicate<ChangeData>
implements Matchable<ChangeData> {
public IsSamplePredicate() {
super("is", "changeNumberEven");
}
@Override
public boolean match(ChangeData changeData) {
int id = changeData.getId().get();
return id % 2 == 0;
}
@Override
public int getCost() {
return 0;
}
}
private List<?> getChanges(QueryChanges queryChanges)
throws AuthException, PermissionBackendException, BadRequestException {
return queryChanges.apply(TopLevelResource.INSTANCE).value();
}
}