1/*
2 * Copyright (C) 2016 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 */
16package com.android.server.testutis;
17
18import android.test.MoreAsserts;
19
20import junit.framework.Assert;
21
22public class TestUtils {
23    private TestUtils() {
24    }
25
26    public static void assertExpectException(Class<? extends Throwable> expectedExceptionType,
27            String expectedExceptionMessageRegex, Runnable r) {
28        try {
29            r.run();
30            Assert.fail("Expected exception type " + expectedExceptionType.getName()
31                    + " was not thrown");
32        } catch (Throwable e) {
33            Assert.assertTrue(
34                    "Expected exception type was " + expectedExceptionType.getName()
35                    + " but caught " + e.getClass().getName(),
36                    expectedExceptionType.isAssignableFrom(e.getClass()));
37            if (expectedExceptionMessageRegex != null) {
38                MoreAsserts.assertContainsRegex(expectedExceptionMessageRegex, e.getMessage());
39            }
40        }
41    }
42}
43