| // Copyright 2019 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.android.desugar; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.devtools.build.android.desugar.ClassSignatureParser.ClassSignature; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Unit tests for {@link ClassSignatureParser} based on <a |
| * href="https://docs.oracle.com/javase/specs/jvms/se12/html/jvms-4.html#jvms-ClassSignature">$4.7.9.1</a> |
| * of the Java Virtual Machine Specification. |
| */ |
| @RunWith(JUnit4.class) |
| public class ClassSignatureParserTest { |
| |
| @Test |
| public void superclass_noGenerics() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", "Ljava/lang/Object;", "Object", new String[] {}); |
| |
| assertThat(classSignature.superClassSignature().identifier()).isEqualTo("Ljava/lang/Object"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEmpty(); |
| assertThat(classSignature.typeParameters()).isEmpty(); |
| assertThat(classSignature.interfaceTypeParameters()).isEmpty(); |
| } |
| |
| @Test |
| public void superClass_oneGenericParameter() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "Ljava/util/LinkedHashSet<Ljava/lang/String;>;", |
| "LinkedHashSet", |
| new String[] {}); |
| |
| assertThat(classSignature.superClassSignature().identifier()) |
| .isEqualTo("Ljava/util/LinkedHashSet"); |
| assertThat(classSignature.superClassSignature().typeParameters()) |
| .isEqualTo("<Ljava/lang/String;>"); |
| assertThat(classSignature.typeParameters()).isEmpty(); |
| assertThat(classSignature.interfaceTypeParameters()).isEmpty(); |
| } |
| |
| @Test |
| public void superClass_twoGenericParameters() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "Ljava/util/concurrent/ConcurrentSkipListMap<Ljava/lang/Integer;Ljava/lang/String;>;", |
| "ConcurrentSkipListMap", |
| new String[] {}); |
| |
| assertThat(classSignature.superClassSignature().identifier()) |
| .isEqualTo("Ljava/util/concurrent/ConcurrentSkipListMap"); |
| assertThat(classSignature.superClassSignature().typeParameters()) |
| .isEqualTo("<Ljava/lang/Integer;Ljava/lang/String;>"); |
| assertThat(classSignature.typeParameters()).isEmpty(); |
| assertThat(classSignature.interfaceTypeParameters()).isEmpty(); |
| } |
| |
| @Test |
| public void superClass_nestedClass() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "Lj$/util/stream/SpinedBuffer$OfPrimitive" |
| + "<Ljava/lang/Double;[DLj$/util/function/DoubleConsumer;>" |
| + ".BaseSpliterator<Lj$/util/Spliterator$OfDouble;>;" |
| + "Lj$/util/Spliterator$OfDouble;", |
| "BaseSpliterator", |
| new String[] {"Spliterator$OfDouble"}); |
| |
| assertThat(classSignature.superClassSignature().identifier()) |
| .isEqualTo( |
| "Lj$/util/stream/SpinedBuffer$OfPrimitive" |
| + "<Ljava/lang/Double;[DLj$/util/function/DoubleConsumer;>" |
| + ".BaseSpliterator"); |
| assertThat(classSignature.superClassSignature().typeParameters()) |
| .isEqualTo("<Lj$/util/Spliterator$OfDouble;>"); |
| assertThat(classSignature.typeParameters()).isEmpty(); |
| assertThat(classSignature.interfaceTypeParameters()).containsExactly(""); |
| } |
| |
| @Test |
| public void genericBounds_oneBound() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "<T:Ljava/lang/Object;>Ljava/util/AbstractList<TT;>;", |
| "AbstractList", |
| new String[] {}); |
| |
| assertThat(classSignature.superClassSignature().identifier()) |
| .isEqualTo("Ljava/util/AbstractList"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEqualTo("<TT;>"); |
| assertThat(classSignature.typeParameters()).isEqualTo("<T:Ljava/lang/Object;>"); |
| assertThat(classSignature.interfaceTypeParameters()).isEmpty(); |
| } |
| |
| @Test |
| public void genericBounds_twoBounds() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "<E:Ljava/lang/Number;T::Ljava/util/List<TE;>;>" |
| + "Ljava/lang/Object;Ljava/util/List<TE;>;", |
| "Object", |
| new String[] {"List"}); |
| |
| assertThat(classSignature.superClassSignature().identifier()).isEqualTo("Ljava/lang/Object"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEmpty(); |
| assertThat(classSignature.typeParameters()) |
| .isEqualTo("<E:Ljava/lang/Number;T::Ljava/util/List<TE;>;>"); |
| assertThat(classSignature.interfaceTypeParameters()).containsExactly("<TE;>"); |
| } |
| |
| @Test |
| public void interfaces_oneImplementation() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "<T:Ljava/lang/Object;>Ljava/lang/Object;" + "Ljava/util/List<TT;>;", |
| "Object", |
| new String[] {"List"}); |
| |
| assertThat(classSignature.superClassSignature().identifier()).isEqualTo("Ljava/lang/Object"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEmpty(); |
| assertThat(classSignature.typeParameters()).isEqualTo("<T:Ljava/lang/Object;>"); |
| assertThat(classSignature.interfaceTypeParameters()).containsExactly("<TT;>"); |
| } |
| |
| @Test |
| public void interfaces_twoImplementations() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "<E:Ljava/lang/Number;T:Ljava/lang/Object;>Ljava/lang/Object;" |
| + "Ljava/util/List<TT;>;Ljava/util/Set<TE;>;", |
| "Object", |
| new String[] {"List", "Set"}); |
| |
| assertThat(classSignature.superClassSignature().identifier()).isEqualTo("Ljava/lang/Object"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEmpty(); |
| assertThat(classSignature.typeParameters()) |
| .isEqualTo("<E:Ljava/lang/Number;T:Ljava/lang/Object;>"); |
| assertThat(classSignature.interfaceTypeParameters()) |
| .containsExactly("<TT;>", "<TE;>") |
| .inOrder(); |
| } |
| |
| @Test |
| public void interface_nestedGenerics() { |
| ClassSignature classSignature = |
| ClassSignatureParser.readTypeParametersForInterfaces( |
| "Foo", |
| "Ljava/lang/Object;Ldagger/internal/Factory" |
| + "<Lcom/google/android/libraries/storage/protostore/ProtoDataStore" |
| + "<Lcom/google/android/apps/nbu/paisa/user/discover/search/searchconfigservice/SearchConfigDataStore;>;" |
| + ">;", |
| "Object", |
| new String[] {"Factory"}); |
| |
| assertThat(classSignature.superClassSignature().identifier()).isEqualTo("Ljava/lang/Object"); |
| assertThat(classSignature.superClassSignature().typeParameters()).isEmpty(); |
| assertThat(classSignature.typeParameters()).isEmpty(); |
| assertThat(classSignature.interfaceTypeParameters()) |
| .containsExactly( |
| "<Lcom/google/android/libraries/storage/protostore/ProtoDataStore" |
| + "<Lcom/google/android/apps/nbu/paisa/user/discover/search/searchconfigservice/SearchConfigDataStore;>;" |
| + ">"); |
| } |
| } |