// 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.analysis;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableMap;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link TransitiveInfoProviderMapOffsetBased}. */
@RunWith(JUnit4.class)
public final class TransitiveInfoProviderMapOffsetBasedTest {
static class ProviderA implements TransitiveInfoProvider {}
static class ProviderB implements TransitiveInfoProvider {}
static class ProviderC implements TransitiveInfoProvider {}
@Test
public void testTransitiveInfoProviderMap() throws Exception {
ProviderA providerA = new ProviderA();
ProviderB providerB = new ProviderB();
ImmutableMap<Class<? extends TransitiveInfoProvider>, TransitiveInfoProvider> providers =
ImmutableMap.<Class<? extends TransitiveInfoProvider>, TransitiveInfoProvider>builder()
.put(ProviderA.class, providerA)
.put(ProviderB.class, providerB)
.build();
TransitiveInfoProviderMapOffsetBased map = new TransitiveInfoProviderMapOffsetBased(providers);
assertThat(map.getProvider(ProviderA.class)).isSameAs(providerA);
assertThat(map.getProvider(ProviderB.class)).isSameAs(providerB);
assertThat(map.getProvider(ProviderC.class)).isNull();
ImmutableMap.Builder<Class<? extends TransitiveInfoProvider>, TransitiveInfoProvider>
containedProviders =
ImmutableMap.<Class<? extends TransitiveInfoProvider>, TransitiveInfoProvider>builder();
for (int i = 0; i < map.getProviderCount(); ++i) {
containedProviders.put(map.getProviderClassAt(i), map.getProviderAt(i));
}
assertThat(containedProviders.build()).isEqualTo(providers);
}
}