1 /* 2 * Copyright 2018 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 17 package androidx.testutils 18 19 import com.google.common.truth.ThrowableSubject 20 import com.google.common.truth.Truth.assertThat 21 assertThrowsnull22inline fun <reified T : Throwable> assertThrows(body: () -> Unit): ThrowableSubject { 23 try { 24 body() 25 } catch (e: Throwable) { 26 if (e is T) { 27 return assertThat(e) 28 } 29 throw e 30 } 31 throw AssertionError("Body completed successfully. Expected ${T::class.java.simpleName}.") 32 } 33 failnull34fun fail(message: String? = null): Nothing = throw AssertionError(message) 35