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BooleanSubject.java
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BooleanSubject.java
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/*
* Copyright (c) 2011 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.Fact.simpleFact;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Propositions for boolean subjects.
*
* @author Christian Gruber (cgruber@israfil.net)
*/
public final class BooleanSubject extends Subject {
private final @Nullable Boolean actual;
BooleanSubject(FailureMetadata metadata, @Nullable Boolean actual) {
super(metadata, actual);
this.actual = actual;
}
/** Fails if the subject is false or {@code null}. */
public void isTrue() {
if (actual == null) {
isEqualTo(true); // fails
} else if (!actual) {
failWithoutActual(simpleFact("expected to be true"));
}
}
/** Fails if the subject is true or {@code null}. */
public void isFalse() {
if (actual == null) {
isEqualTo(false); // fails
} else if (actual) {
failWithoutActual(simpleFact("expected to be false"));
}
}
}