1 /* 2 * Copyright (C) 2014 Google, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package dagger.internal.codegen.writer; 17 18 import com.google.testing.compile.CompilationRule; 19 import java.nio.charset.Charset; 20 import java.util.Set; 21 import javax.lang.model.element.TypeElement; 22 import javax.lang.model.type.DeclaredType; 23 import javax.lang.model.type.TypeKind; 24 import javax.lang.model.type.TypeMirror; 25 import org.junit.Rule; 26 import org.junit.Test; 27 import org.junit.runner.RunWith; 28 import org.junit.runners.JUnit4; 29 30 import static com.google.common.truth.Truth.assertThat; 31 32 @RunWith(JUnit4.class) 33 public class TypeNamesTest { 34 @Rule public final CompilationRule compilation = new CompilationRule(); 35 getElement(Class<?> clazz)36 private TypeElement getElement(Class<?> clazz) { 37 return compilation.getElements().getTypeElement(clazz.getCanonicalName()); 38 } 39 getType(Class<?> clazz)40 private TypeMirror getType(Class<?> clazz) { 41 return getElement(clazz).asType(); 42 } 43 44 @Test forTypeMirror_basicTypes()45 public void forTypeMirror_basicTypes() { 46 assertThat(TypeNames.forTypeMirror(getType(Object.class))) 47 .isEqualTo(ClassName.fromClass(Object.class)); 48 assertThat(TypeNames.forTypeMirror(getType(Charset.class))) 49 .isEqualTo(ClassName.fromClass(Charset.class)); 50 assertThat(TypeNames.forTypeMirror(getType(TypeNamesTest.class))) 51 .isEqualTo(ClassName.fromClass(TypeNamesTest.class)); 52 } 53 54 @Test forTypeMirror_parameterizedType()55 public void forTypeMirror_parameterizedType() { 56 DeclaredType setType = 57 compilation.getTypes().getDeclaredType(getElement(Set.class), getType(Object.class)); 58 assertThat(TypeNames.forTypeMirror(setType)) 59 .isEqualTo(ParameterizedTypeName.create(Set.class, ClassName.fromClass(Object.class))); 60 } 61 62 @Test forTypeMirror_typeVariables()63 public void forTypeMirror_typeVariables() { 64 TypeMirror setType = getType(Set.class); 65 assertThat(TypeNames.forTypeMirror(setType)) 66 .isEqualTo(ParameterizedTypeName.create(Set.class, TypeVariableName.named("E"))); 67 } 68 69 @Test forTypeMirror_primitive()70 public void forTypeMirror_primitive() { 71 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.BOOLEAN))) 72 .isEqualTo(PrimitiveName.BOOLEAN); 73 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.BYTE))) 74 .isEqualTo(PrimitiveName.BYTE); 75 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.SHORT))) 76 .isEqualTo(PrimitiveName.SHORT); 77 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.INT))) 78 .isEqualTo(PrimitiveName.INT); 79 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.LONG))) 80 .isEqualTo(PrimitiveName.LONG); 81 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.CHAR))) 82 .isEqualTo(PrimitiveName.CHAR); 83 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.FLOAT))) 84 .isEqualTo(PrimitiveName.FLOAT); 85 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getPrimitiveType(TypeKind.DOUBLE))) 86 .isEqualTo(PrimitiveName.DOUBLE); 87 } 88 89 @Test forTypeMirror_arrays()90 public void forTypeMirror_arrays() { 91 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getArrayType(getType(Object.class)))) 92 .isEqualTo(new ArrayTypeName(ClassName.fromClass(Object.class))); 93 } 94 95 @Test forTypeMirror_void()96 public void forTypeMirror_void() { 97 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getNoType(TypeKind.VOID))) 98 .isEqualTo(VoidName.VOID); 99 } 100 101 @Test forTypeMirror_null()102 public void forTypeMirror_null() { 103 assertThat(TypeNames.forTypeMirror(compilation.getTypes().getNullType())) 104 .isEqualTo(NullName.NULL); 105 } 106 } 107