com.google.common.truth.Truth8 Maven / Gradle / Ivy
Show all versions of truth-java8-extension Show documentation
/*
* Copyright (c) 2016 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 com.google.common.annotations.GwtIncompatible;
import java.nio.file.Path;
import java.util.Optional;
import java.util.OptionalDouble;
import java.util.OptionalInt;
import java.util.OptionalLong;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import java.util.stream.Stream;
import javax.annotation.Nullable;
/**
* A set of static methods to begin a Truth assertion chain for types that require java8.
*
* Note: Usage of different failure strategies such as assume and expect should
* rely on {@link
* com.google.common.truth.AbstractVerb#about(com.google.common.truth.SubjectFactory)} to begin a
* chain with those alternative behaviors.
*/
public final class Truth8 {
public static OptionalSubject assertThat(@Nullable Optional target) {
return assertAbout(OptionalSubject.optionals()).that(target);
}
public static OptionalIntSubject assertThat(@Nullable OptionalInt target) {
return assertAbout(OptionalIntSubject.optionalInts()).that(target);
}
public static OptionalLongSubject assertThat(@Nullable OptionalLong target) {
return assertAbout(OptionalLongSubject.optionalLongs()).that(target);
}
public static OptionalDoubleSubject assertThat(@Nullable OptionalDouble target) {
return assertAbout(OptionalDoubleSubject.optionalDoubles()).that(target);
}
public static StreamSubject assertThat(@Nullable Stream target) {
return assertAbout(StreamSubject.streams()).that(target);
}
public static IntStreamSubject assertThat(@Nullable IntStream target) {
return assertAbout(IntStreamSubject.intStreams()).that(target);
}
public static LongStreamSubject assertThat(@Nullable LongStream target) {
return assertAbout(LongStreamSubject.longStreams()).that(target);
}
// TODO(b/64757353): Add support for DoubleStream?
// Not actually a Java 8 feature, but for now this is the best option since core Truth still has
// to support Java environments without java.nio.file such as Android and J2CL.
@GwtIncompatible
public static PathSubject assertThat(@Nullable Path target) {
return assertAbout(PathSubject.paths()).that(target);
}
private Truth8() {}
}