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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.rules.objc;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.rules.objc.ObjcProvider.Key;
import com.google.devtools.build.lib.syntax.SkylarkSemantics;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link ObjcProvider}. */
@RunWith(JUnit4.class)
public class ObjcProviderTest {
private static ObjcProvider.Builder objcProviderBuilder() {
return new ObjcProvider.Builder(SkylarkSemantics.DEFAULT_SEMANTICS);
}
@Test
public void emptyProvider() {
ObjcProvider empty = objcProviderBuilder().build();
assertThat(empty.get(ObjcProvider.SDK_DYLIB)).isEmpty();
}
@Test
public void onlyPropagatesProvider() {
ObjcProvider onlyPropagates = objcProviderBuilder()
.add(ObjcProvider.SDK_DYLIB, "foo")
.build();
assertThat(onlyPropagates.get(ObjcProvider.SDK_DYLIB)).containsExactly("foo");
}
@Test
public void onlyNonPropagatesProvider() {
ObjcProvider dep = objcProviderBuilder()
.add(ObjcProvider.SDK_DYLIB, "foo")
.build();
ObjcProvider notPropagates = objcProviderBuilder()
.addTransitiveWithoutPropagating(ImmutableList.of(dep))
.build();
assertThat(notPropagates.get(ObjcProvider.SDK_DYLIB)).containsExactly("foo");
}
@Test
public void propagatesAndNonPropagatesProvider() {
ObjcProvider dep = objcProviderBuilder()
.add(ObjcProvider.SDK_DYLIB, "foo")
.build();
ObjcProvider provider = objcProviderBuilder()
.addTransitiveWithoutPropagating(ImmutableList.of(dep))
.add(ObjcProvider.SDK_DYLIB, "bar")
.build();
assertThat(provider.get(ObjcProvider.SDK_DYLIB)).containsExactly("foo", "bar").inOrder();
}
@Test
public void doesNotPropagate() {
ObjcProvider dep = objcProviderBuilder()
.add(ObjcProvider.SDK_DYLIB, "foo")
.build();
ObjcProvider provider = objcProviderBuilder()
.addTransitiveWithoutPropagating(ImmutableList.of(dep))
.add(ObjcProvider.SDK_DYLIB, "bar")
.build();
ObjcProvider depender = objcProviderBuilder()
.addTransitiveAndPropagate(provider)
.build();
assertThat(depender.get(ObjcProvider.SDK_DYLIB)).containsExactly("bar");
}
@Test
public void strictDependencyDoesNotPropagateMoreThanOneLevel() {
PathFragment strictInclude = PathFragment.create("strict_path");
PathFragment propagatedInclude = PathFragment.create("propagated_path");
ObjcProvider strictDep =
objcProviderBuilder()
.addForDirectDependents(ObjcProvider.INCLUDE, strictInclude)
.build();
ObjcProvider propagatedDep =
objcProviderBuilder().add(ObjcProvider.INCLUDE, propagatedInclude).build();
ObjcProvider provider =
objcProviderBuilder()
.addTransitiveAndPropagate(ImmutableList.of(strictDep, propagatedDep))
.build();
ObjcProvider depender = objcProviderBuilder().addTransitiveAndPropagate(provider).build();
assertThat(provider.get(ObjcProvider.INCLUDE))
.containsExactly(strictInclude, propagatedInclude);
assertThat(depender.get(ObjcProvider.INCLUDE)).containsExactly(propagatedInclude);
}
@Test
public void strictDependencyDoesNotPropagateMoreThanOneLevelOnSkylark() {
PathFragment strictInclude = PathFragment.create("strict_path");
PathFragment propagatedInclude = PathFragment.create("propagated_path");
ObjcProvider strictDep =
objcProviderBuilder()
.addForDirectDependents(ObjcProvider.INCLUDE, strictInclude)
.build();
ObjcProvider propagatedDep =
objcProviderBuilder().add(ObjcProvider.INCLUDE, propagatedInclude).build();
ObjcProvider provider =
objcProviderBuilder()
.addTransitiveAndPropagate(ImmutableList.of(strictDep, propagatedDep))
.build();
ObjcProvider depender = objcProviderBuilder().addTransitiveAndPropagate(provider).build();
assertThat(provider.include().toCollection())
.containsExactly(strictInclude.toString(), propagatedInclude.toString());
assertThat(depender.include().toCollection())
.containsExactly(propagatedInclude.toString());
}
@Test
public void keysExportedToSkylark() throws Exception {
List<Field> keyFields = new ArrayList<>();
for (Field field : ObjcProvider.class.getDeclaredFields()) {
if (Modifier.isStatic(field.getModifiers()) && field.getType() == ObjcProvider.Key.class) {
keyFields.add(field);
}
}
ImmutableSet<Key<?>> allRegisteredKeys = ImmutableSet.<Key<?>>builder()
.addAll(ObjcProvider.KEYS_FOR_SKYLARK)
.addAll(ObjcProvider.KEYS_NOT_IN_SKYLARK)
.build();
for (Field field : keyFields) {
ObjcProvider.Key<?> key = (Key<?>) field.get(null);
assertWithMessage("Key %s must either be exposed to skylark or explicitly blacklisted",
key.getSkylarkKeyName()).that(allRegisteredKeys).contains(key);
}
}
}
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