| /* |
| * Copyright 2021 Google LLC |
| * |
| * 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.auto.value.processor; |
| |
| import static com.google.common.base.StandardSystemProperty.JAVA_SPECIFICATION_VERSION; |
| import static com.google.common.truth.TruthJUnit.assume; |
| import static com.google.testing.compile.CompilationSubject.assertThat; |
| import static com.google.testing.compile.Compiler.javac; |
| |
| import com.google.testing.compile.Compilation; |
| import com.google.testing.compile.JavaFileObjects; |
| import javax.tools.JavaFileObject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public final class AutoBuilderCompilationTest { |
| private static final JavaFileObject EXPECTED_SIMPLE_OUTPUT = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.AutoBuilder_Baz_Builder", |
| "package foo.bar;", |
| "", |
| GeneratedImport.importGeneratedAnnotationType(), |
| "", |
| "@Generated(\"" + AutoBuilderProcessor.class.getName() + "\")", |
| "class AutoBuilder_Baz_Builder implements Baz.Builder {", |
| " private Integer anInt;", |
| " private String aString;", |
| "", |
| " AutoBuilder_Baz_Builder() {}", |
| "", |
| " @Override public Baz.Builder setAnInt(int anInt) {", |
| " this.anInt = anInt;", |
| " return this;", |
| " }", |
| "", |
| " @Override public Baz.Builder setAString(String aString) {", |
| " if (aString == null) {", |
| " throw new NullPointerException(\"Null aString\");", |
| " }", |
| " this.aString = aString;", |
| " return this;", |
| " }", |
| "", |
| " @Override", |
| " public Baz build() {", |
| " if (this.anInt == null", |
| " || this.aString == null) {", |
| " StringBuilder missing = new StringBuilder();", |
| " if (this.anInt == null) {", |
| " missing.append(\" anInt\");", |
| " }", |
| " if (this.aString == null) {", |
| " missing.append(\" aString\");", |
| " }", |
| " throw new IllegalStateException(\"Missing required properties:\" + missing);", |
| " }", |
| " return new Baz(", |
| " this.anInt,", |
| " this.aString);", |
| " }", |
| "}"); |
| |
| @Test |
| public void simpleSuccess() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " private final int anInt;", |
| " private final String aString;", |
| "", |
| " public Baz(int anInt, String aString) {", |
| " this.anInt = anInt;", |
| " this.aString = aString;", |
| " }", |
| "", |
| " public int anInt() {", |
| " return anInt;", |
| " }", |
| "", |
| " public String aString() {", |
| " return aString;", |
| " }", |
| "", |
| " public static Builder builder() {", |
| " return new AutoBuilder_Baz_Builder();", |
| " }", |
| "", |
| " @AutoBuilder", |
| " public interface Builder {", |
| " Builder setAnInt(int x);", |
| " Builder setAString(String x);", |
| " Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation) |
| .generatedSourceFile("foo.bar.AutoBuilder_Baz_Builder") |
| .hasSourceEquivalentTo(EXPECTED_SIMPLE_OUTPUT); |
| } |
| |
| @Test |
| public void simpleRecord() { |
| double version = Double.parseDouble(JAVA_SPECIFICATION_VERSION.value()); |
| assume().that(version).isAtLeast(16.0); |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public record Baz(int anInt, String aString) {", |
| " public static Builder builder() {", |
| " return new AutoBuilder_Baz_Builder();", |
| " }", |
| "", |
| " @AutoBuilder", |
| " public interface Builder {", |
| " Builder setAnInt(int x);", |
| " Builder setAString(String x);", |
| " Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation) |
| .generatedSourceFile("foo.bar.AutoBuilder_Baz_Builder") |
| .hasSourceEquivalentTo(EXPECTED_SIMPLE_OUTPUT); |
| } |
| |
| @Test |
| public void buildOtherPackage() { |
| JavaFileObject built = |
| JavaFileObjects.forSourceLines( |
| "com.example.Built", |
| "package com.example;", |
| "", |
| "public class Built {", |
| " private final int anInt;", |
| " private final String aString;", |
| "", |
| " public Built(int anInt, String aString) {", |
| " this.anInt = anInt;", |
| " this.aString = aString;", |
| " }", |
| "}"); |
| JavaFileObject builder = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Builder", |
| "package foo.bar;", |
| "", |
| "import com.example.Built;", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "@AutoBuilder(ofClass = Built.class)", |
| "public interface Builder {", |
| " public static Builder builder() {", |
| " return new AutoBuilder_Builder();", |
| " }", |
| "", |
| " Builder setAnInt(int x);", |
| " Builder setAString(String x);", |
| " Built build();", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(built, builder); |
| assertThat(compilation).succeededWithoutWarnings(); |
| assertThat(compilation).generatedSourceFile("foo.bar.AutoBuilder_Builder"); |
| } |
| |
| @Test |
| public void autoBuilderOnEnum() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "@AutoBuilder", |
| "public enum Baz {", |
| " ZIG, ZAG, DUSTIN,", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderWrongType] @AutoBuilder only applies to classes and interfaces") |
| .inFile(javaFileObject) |
| .onLineContaining("enum Baz"); |
| } |
| |
| @Test |
| public void autoBuilderPrivate() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " @AutoBuilder", |
| " private interface Builder {", |
| " Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining("[AutoBuilderPrivate] @AutoBuilder class must not be private") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void autoBuilderNestedInPrivate() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " private static class Private {", |
| " @AutoBuilder", |
| " public interface Builder {", |
| " Baz build();", |
| " }", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderInPrivate] @AutoBuilder class must not be nested in a private class") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void autoBuilderInner() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " @AutoBuilder", |
| " abstract class Builder {", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining("[AutoBuilderInner] Nested @AutoBuilder class must be static") |
| .inFile(javaFileObject) |
| .onLineContaining("class Builder"); |
| } |
| |
| @Test |
| public void innerConstructor() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " class Inner {}", |
| "", |
| " @AutoBuilder(ofClass = Inner.class)", |
| " interface Builder {", |
| " abstract Inner build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining("[AutoBuilderInner] Nested @AutoBuilder ofClass class must be static") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void noVisibleConstructor() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " @AutoBuilder(ofClass = System.class)", |
| " interface Builder {", |
| " abstract System build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining("[AutoBuilderNoVisible] No visible constructor for java.lang.System") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void noVisibleMethod() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " private static Baz of() {", |
| " return new Baz();", |
| " }", |
| "", |
| " @AutoBuilder(callMethod = \"of\")", |
| " interface Builder {", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderNoVisible] No visible static method named \"of\" for foo.bar.Baz") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void methodNotStatic() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " Baz of() {", |
| " return this;", |
| " }", |
| "", |
| " @AutoBuilder(callMethod = \"of\")", |
| " interface Builder {", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderNoVisible] No visible static method named \"of\" for foo.bar.Baz") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void noMatchingConstructor() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " public Baz(int notMe) {}", |
| "", |
| " public Baz(String notMeEither) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " Builder setBuh(String x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderNoMatch] Property names do not correspond to the parameter names of any" |
| + " constructor:\n" |
| + " Baz(int notMe)\n" |
| + " Baz(java.lang.String notMeEither)") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void twoMatchingConstructors() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public class Baz {", |
| " public Baz() {}", |
| "", |
| " public Baz(int buh) {}", |
| "", |
| " public Baz(String buh) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " Builder setBuh(String x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderAmbiguous] Property names correspond to more than one constructor:\n" |
| + " Baz(int buh)\n" |
| + " Baz(java.lang.String buh)") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void constructInterface() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "public interface Baz {", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderEnclosing] @AutoBuilder must specify ofClass=Something.class or it must" |
| + " be nested inside the class to be built; actually nested inside interface" |
| + " foo.bar.Baz") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void inconsistentSetPrefix() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract Builder setTwo(int x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderSetNotSet] If any setter methods use the setFoo convention then all must") |
| .inFile(javaFileObject) |
| .onLineContaining("Builder one(int x)"); |
| } |
| |
| @Test |
| public void missingSetter() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderBuilderMissingMethod] Expected a method with this signature:" |
| + " foo.bar.Baz.Builder two(int), or a twoBuilder() method") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder"); |
| } |
| |
| @Test |
| public void tooManyArgs() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract Builder two(int x);", |
| " abstract Builder many(int x, int y);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining("[AutoBuilderBuilderArgs] Builder methods must have 0 or 1 parameters") |
| .inFile(javaFileObject) |
| .onLineContaining("many(int x, int y)"); |
| } |
| |
| @Test |
| public void alienNoArgMethod() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract Builder two(int x);", |
| " abstract String alien();", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderBuilderNoArg] Method without arguments should be a build method returning" |
| + " foo.bar.Baz, or a getter method with the same name and type as a parameter of" |
| + " Baz(int one, int two), or fooBuilder() where foo is a parameter of Baz(int" |
| + " one, int two)") |
| .inFile(javaFileObject) |
| .onLineContaining("String alien()"); |
| } |
| |
| @Test |
| public void alienOneArgMethod() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract Builder two(int x);", |
| " abstract Builder three(int x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderBuilderWhatProp] Method three does not correspond to " |
| + "a parameter of Baz(int one, int two)") |
| .inFile(javaFileObject) |
| .onLineContaining("three(int x)"); |
| } |
| |
| @Test |
| public void setterReturnType() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int one, int two) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder one(int x);", |
| " abstract void two(int x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderBuilderRet] Setter methods must return foo.bar.Baz.Builder") |
| .inFile(javaFileObject) |
| .onLineContaining("two(int x)"); |
| } |
| |
| @Test |
| public void nullableSetterForNonNullableParameter() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "import org.checkerframework.checker.nullness.qual.Nullable;", |
| "", |
| "class Baz {", |
| " Baz(String thing) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder thing(@Nullable String x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| JavaFileObject nullableFileObject = |
| JavaFileObjects.forSourceLines( |
| "org.checkerframework.checker.nullness.qual.Nullable", |
| "package org.jspecify.nullness;", |
| "", |
| "import java.lang.annotation.ElementType;", |
| "import java.lang.annotation.Target;", |
| "", |
| "@Target(ElementType.TYPE_USE)", |
| "public @interface Nullable {}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject, nullableFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderNullNotNull] Parameter of setter method is @Nullable but parameter" |
| + " \"thing\" of Baz(java.lang.String thing) is not") |
| .inFile(javaFileObject) |
| .onLineContaining("thing(@Nullable String x)"); |
| } |
| |
| @Test |
| public void setterWrongType() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "", |
| "class Baz {", |
| " Baz(int up, int down) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder up(int x);", |
| " abstract Builder down(String x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderGetVsSet] Parameter type java.lang.String of setter method should be int" |
| + " to match parameter \"down\" of Baz(int up, int down)") |
| .inFile(javaFileObject) |
| .onLineContaining("down(String x)"); |
| } |
| |
| @Test |
| public void setterWrongTypeEvenWithConversion() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "import java.util.Optional;", |
| "", |
| "class Baz {", |
| " Baz(Optional<String> maybe) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder {", |
| " abstract Builder maybe(int x);", |
| " abstract Baz build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderGetVsSetOrConvert] Parameter type int of setter method should be" |
| + " java.util.Optional<java.lang.String> to match parameter \"maybe\" of" |
| + " Baz(java.util.Optional<java.lang.String> maybe), or it should be a type that" |
| + " can be passed to Optional.of to produce java.util.Optional<java.lang.String>") |
| .inFile(javaFileObject) |
| .onLineContaining("maybe(int x)"); |
| } |
| |
| @Test |
| public void typeParamMismatch() { |
| JavaFileObject javaFileObject = |
| JavaFileObjects.forSourceLines( |
| "foo.bar.Baz", |
| "package foo.bar;", |
| "", |
| "import com.google.auto.value.AutoBuilder;", |
| "import java.util.Optional;", |
| "", |
| "class Baz<T> {", |
| " Baz(T param) {}", |
| "", |
| " @AutoBuilder", |
| " interface Builder<E> {", |
| " abstract Builder<E> param(E param);", |
| " abstract Baz<E> build();", |
| " }", |
| "}"); |
| Compilation compilation = |
| javac() |
| .withProcessors(new AutoBuilderProcessor()) |
| .withOptions("-Acom.google.auto.value.AutoBuilderIsUnstable") |
| .compile(javaFileObject); |
| assertThat(compilation).failed(); |
| assertThat(compilation) |
| .hadErrorContaining( |
| "[AutoBuilderTypeParams] Builder type parameters <E> must match type parameters <T> of" |
| + " Baz(T param)") |
| .inFile(javaFileObject) |
| .onLineContaining("interface Builder<E>"); |
| } |
| } |
