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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.packages;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.testing.EqualsTester;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.SkylarkInfo.CompactSkylarkInfo;
import com.google.devtools.build.lib.packages.SkylarkInfo.MapBackedSkylarkInfo;
import com.google.devtools.build.lib.syntax.Concatable;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Test class for {@link SkylarkInfo} and its subclasses. */
@RunWith(JUnit4.class)
public class SkylarkInfoTest {
@Test
public void sameProviderDifferentLayoutConcatenation() throws Exception {
SkylarkProvider provider =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
ImmutableMap<String, Integer> layout1 = ImmutableMap.of("f1", 0, "f2", 1);
ImmutableMap<String, Integer> layout2 = ImmutableMap.of("f1", 1, "f2", 0);
CompactSkylarkInfo info1 =
new CompactSkylarkInfo(provider, layout1, new Object[] {5, null}, Location.BUILTIN);
CompactSkylarkInfo info2 =
new CompactSkylarkInfo(provider, layout2, new Object[] {4, null}, Location.BUILTIN);
SkylarkInfo result = (SkylarkInfo) info1.getConcatter().concat(info1, info2, Location.BUILTIN);
assertThat(result).isInstanceOf(MapBackedSkylarkInfo.class);
assertThat(result.getValue("f1")).isEqualTo(5);
assertThat(result.getValue("f2")).isEqualTo(4);
}
@Test
public void immutabilityPredicate() throws Exception {
SkylarkProvider provider =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
ImmutableMap<String, Integer> layout = ImmutableMap.of("f1", 0, "f2", 1);
SkylarkInfo compactInfo =
new CompactSkylarkInfo(provider, layout, new Object[] {5, null}, Location.BUILTIN);
assertThat(compactInfo.isImmutable()).isFalse();
SkylarkInfo mapInfo =
new MapBackedSkylarkInfo(provider, ImmutableMap.of("f1", 5), Location.BUILTIN);
assertThat(mapInfo.isImmutable()).isFalse();
provider.export(Label.create("package", "target"), "provider");
assertThat(compactInfo.isImmutable()).isTrue();
assertThat(mapInfo.isImmutable()).isTrue();
compactInfo =
new CompactSkylarkInfo(provider, layout, new Object[] {5, new Object()}, Location.BUILTIN);
assertThat(compactInfo.isImmutable()).isFalse();
mapInfo =
new MapBackedSkylarkInfo(
provider, ImmutableMap.of("f1", 5, "f2", new Object()), Location.BUILTIN);
assertThat(mapInfo.isImmutable()).isFalse();
}
@Test
public void equality() throws Exception {
Provider provider1 =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
Provider provider2 =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
ImmutableMap<String, Integer> layout = ImmutableMap.of("f1", 0, "f2", 1);
new EqualsTester()
.addEqualityGroup(
new CompactSkylarkInfo(provider1, layout, new Object[] {4, null}, Location.BUILTIN),
new MapBackedSkylarkInfo(provider1, ImmutableMap.of("f1", 4), Location.BUILTIN))
.addEqualityGroup(
new CompactSkylarkInfo(provider2, layout, new Object[] {4, null}, Location.BUILTIN),
new MapBackedSkylarkInfo(provider2, ImmutableMap.of("f1", 4), Location.BUILTIN))
.addEqualityGroup(
new CompactSkylarkInfo(provider1, layout, new Object[] {4, 5}, Location.BUILTIN),
new MapBackedSkylarkInfo(
provider1, ImmutableMap.of("f1", 4, "f2", 5), Location.BUILTIN))
.testEquals();
}
@Test
public void heterogeneousConcatenation() throws Exception {
Provider provider =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
ImmutableMap<String, Integer> layout = ImmutableMap.of("f1", 0, "f2", 1);
SkylarkInfo p1 = new MapBackedSkylarkInfo(provider, ImmutableMap.of("f1", 4), Location.BUILTIN);
CompactSkylarkInfo p2 =
new CompactSkylarkInfo(provider, layout, new Object[] {null, 5}, Location.BUILTIN);
Concatable result = p1.getConcatter().concat(p1, p2, Location.BUILTIN);
assertThat(result).isInstanceOf(MapBackedSkylarkInfo.class);
assertThat(((SkylarkInfo) result).getFieldNames()).containsExactly("f1", "f2");
assertThat(((SkylarkInfo) result).getValue("f1")).isEqualTo(4);
assertThat(((SkylarkInfo) result).getValue("f2")).isEqualTo(5);
}
@Test
public void compactConcatenationReturnsCompact() throws Exception {
Provider provider =
SkylarkProvider.createUnexportedSchemaful(ImmutableList.of("f1", "f2"), Location.BUILTIN);
ImmutableMap<String, Integer> layout = ImmutableMap.of("f1", 0, "f2", 1);
CompactSkylarkInfo p1 =
new CompactSkylarkInfo(provider, layout, new Object[] {4, null}, Location.BUILTIN);
CompactSkylarkInfo p2 =
new CompactSkylarkInfo(provider, layout, new Object[] {null, 5}, Location.BUILTIN);
Concatable result = p1.getConcatter().concat(p1, p2, Location.BUILTIN);
assertThat(result).isInstanceOf(CompactSkylarkInfo.class);
assertThat(((CompactSkylarkInfo) result).getFieldNames()).containsExactly("f1", "f2");
assertThat(((CompactSkylarkInfo) result).getValue("f1")).isEqualTo(4);
assertThat(((CompactSkylarkInfo) result).getValue("f2")).isEqualTo(5);
}
}
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