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// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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.devtools.build.lib.collect.nestedset;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.skyframe.serialization.AutoRegistry;
import com.google.devtools.build.lib.skyframe.serialization.ObjectCodecs;
import com.google.devtools.build.lib.skyframe.serialization.SerializationConstants;
import com.google.devtools.build.lib.skyframe.serialization.testutils.SerializationTester;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mockito;
/** Tests for {@link NestedSet} serialization. */
@RunWith(JUnit4.class)
public class NestedSetCodecTest {
private static final NestedSet<String> SHARED_NESTED_SET =
NestedSetBuilder.<String>stableOrder().add("e").build();
@Before
public void setUp() {
SerializationConstants.shouldSerializeNestedSet = true;
}
@After
public void tearDown() {
SerializationConstants.shouldSerializeNestedSet = false;
}
@Test
public void testAutoCodecedCodec() throws Exception {
ObjectCodecs objectCodecs =
new ObjectCodecs(
AutoRegistry.get().getBuilder().setAllowDefaultCodec(true).build(), ImmutableMap.of());
checkCodec(objectCodecs);
}
@Test
public void testCodecWithInMemoryNestedSetStore() throws Exception {
ObjectCodecs objectCodecs =
new ObjectCodecs(
AutoRegistry.get()
.getBuilder()
.setAllowDefaultCodec(true)
.add(new NestedSetCodecWithStore<>(new NestedSetStore()))
.build(),
ImmutableMap.of());
checkCodec(objectCodecs);
}
@Test
public void testSingletonNestedSetSerializedWithoutStore() throws Exception {
NestedSetStore mockNestedSetStore = Mockito.mock(NestedSetStore.class);
Mockito.when(mockNestedSetStore.computeFingerprintAndStore(Mockito.any(), Mockito.any()))
.thenThrow(new AssertionError("NestedSetStore should not have been used"));
ObjectCodecs objectCodecs =
new ObjectCodecs(
AutoRegistry.get()
.getBuilder()
.setAllowDefaultCodec(true)
.add(new NestedSetCodecWithStore<>(mockNestedSetStore))
.build());
NestedSet<String> singletonNestedSet = new NestedSet<>(Order.STABLE_ORDER, "a");
objectCodecs.serialize(singletonNestedSet);
}
private void checkCodec(ObjectCodecs objectCodecs) throws Exception {
new SerializationTester(
NestedSetBuilder.emptySet(Order.STABLE_ORDER),
NestedSetBuilder.emptySet(Order.NAIVE_LINK_ORDER),
NestedSetBuilder.create(Order.STABLE_ORDER, "a"),
NestedSetBuilder.create(Order.STABLE_ORDER, "a", "b", "c"),
NestedSetBuilder.<String>stableOrder()
.add("a")
.add("b")
.addTransitive(
NestedSetBuilder.<String>stableOrder()
.add("c")
.addTransitive(SHARED_NESTED_SET)
.build())
.addTransitive(
NestedSetBuilder.<String>stableOrder()
.add("d")
.addTransitive(SHARED_NESTED_SET)
.build())
.addTransitive(NestedSetBuilder.emptySet(Order.STABLE_ORDER))
.build())
.setObjectCodecs(objectCodecs)
.setVerificationFunction(NestedSetCodecTest::verifyDeserialization)
.runTests();
}
private static void verifyDeserialization(
NestedSet<String> subject, NestedSet<String> deserialized) {
assertThat(subject.getOrder()).isEqualTo(deserialized.getOrder());
assertThat(subject.toSet()).isEqualTo(deserialized.toSet());
verifyStructure(subject.rawChildren(), deserialized.rawChildren());
}
private static void verifyStructure(Object lhs, Object rhs) {
if (lhs == NestedSet.EMPTY_CHILDREN) {
assertThat(rhs).isSameAs(NestedSet.EMPTY_CHILDREN);
} else if (lhs instanceof Object[]) {
assertThat(rhs).isInstanceOf(Object[].class);
Object[] lhsArray = (Object[]) lhs;
Object[] rhsArray = (Object[]) rhs;
int n = lhsArray.length;
assertThat(rhsArray).hasLength(n);
for (int i = 0; i < n; ++i) {
verifyStructure(lhsArray[i], rhsArray[i]);
}
} else {
assertThat(lhs).isEqualTo(rhs);
}
}
}
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