Parcelables.java
/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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 androidx.test.core.os;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.Parcelable.Creator;
/** Testing utilities for {@link Parcelable}s. */
public final class Parcelables {
/**
* Parcelables are lazily marshalled, meaning that in typical testing, no marshalling would occur
* and would therefore go untested. This forces marshalling to happen for a Parcelable.
*
* <p>This utility will marshall the provided Parcelable, and attempt to recreate it with the
* given CREATOR. It is up to the caller to validate the two instances are equivalent.
*
* @param parcelable the parcelable to marshall.
* @param creator the CREATOR field for that parcelable.
* @return a new instance of the parcelable that has been unmarshalled.
*/
public static <T extends Parcelable> T forceParcel(T parcelable, Creator<T> creator) {
Parcel parcel = Parcel.obtain();
try {
parcelable.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
return creator.createFromParcel(parcel);
} finally {
parcel.recycle();
}
}
private Parcelables() {}
}