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/*
* Copyright (c) 2014 Google, Inc.
*
* 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.common.truth;
import static com.google.common.truth.Truth.assertAbout;
import static com.google.testing.compile.JavaSourceSubjectFactory.javaSource;
import com.google.testing.compile.JavaFileObjects;
import javax.tools.JavaFileObject;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link ComparableSubject} calls that should fail to compile.
*
* @author Kurt Alfred Kluever
*/
@RunWith(JUnit4.class)
public class ComparableSubjectCompileTest {
@Test
public void comparableMixedTypesDontCompile() {
JavaFileObject file =
JavaFileObjects.forSourceLines(
"test.MyTest",
"package test;",
"import static com.google.common.truth.Truth.assertThat;",
"class MyTest {",
" public void testFoo() {",
" assertThat(new ComparableType(3)).isLessThan(\"kak\");",
" }",
" private static final class ComparableType implements Comparable<ComparableType> {",
" private final int wrapped;",
" private ComparableType(int toWrap) {",
" this.wrapped = toWrap;",
" }",
" @Override public int compareTo(ComparableType other) {",
" return wrapped - ((ComparableType) other).wrapped;",
" }",
" }",
"}");
assertAbout(javaSource())
.that(file)
// https://github.com/google/compile-testing/issues/149
.withCompilerOptions("-sourcepath", "")
.failsToCompile()
.withErrorContaining("java.lang.String cannot be converted to test.MyTest.ComparableType")
.in(file)
.onLine(5);
}
@Test
public void rawComparableTypeMixedTypes() {
JavaFileObject file =
JavaFileObjects.forSourceLines(
"test.MyTest",
"package test;",
"import static com.google.common.truth.Truth.assertThat;",
"class MyTest {",
" public void testFoo() {",
" assertThat(new RawComparableType(3)).isLessThan(\"kak\");",
" }",
" private static final class RawComparableType implements Comparable {",
" private final int wrapped;",
" private RawComparableType(int toWrap) {",
" this.wrapped = toWrap;",
" }",
" @Override public int compareTo(Object other) {",
" return wrapped - ((RawComparableType) other).wrapped;",
" }",
" }",
"}");
assertAbout(javaSource())
.that(file)
// https://github.com/google/compile-testing/issues/149
.withCompilerOptions("-sourcepath", "")
.failsToCompile()
.withErrorContaining(
"java.lang.String cannot be converted to test.MyTest.RawComparableType")
.in(file)
.onLine(5);
}
}
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