1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package androidx.room.integration.kotlintestapp.test
18
19import androidx.lifecycle.LiveData
20import androidx.lifecycle.Observer
21
22object LiveDataTestUtil {
23
24    @Throws(InterruptedException::class)
25    fun <T> getValue(liveData: LiveData<T>): T {
26        val data = arrayOfNulls<Any>(1)
27        val observer = object : Observer<T> {
28            override fun onChanged(o: T?) {
29                data[0] = o
30                liveData.removeObserver(this)
31            }
32        }
33        liveData.observeForever(observer)
34
35        return data[0] as T
36    }
37}
38