1 // Copyright 2023 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 //////////////////////////////////////////////////////////////////////////////// 16 17 package com.google.crypto.tink.subtle; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import org.junit.Test; 22 import org.junit.runner.RunWith; 23 import org.junit.runners.JUnit4; 24 25 @RunWith(JUnit4.class) 26 public final class RandomTest { 27 28 @Test randdomBytes_areDifferent()29 public void randdomBytes_areDifferent() throws Exception { 30 assertThat(Random.randBytes(10)).isNotEqualTo(Random.randBytes(10)); 31 } 32 33 @Test randIntWithMax_works()34 public void randIntWithMax_works() throws Exception { 35 assertThat(Random.randInt(5)).isLessThan(5); 36 } 37 38 @Test randInt_works()39 public void randInt_works() throws Exception { 40 int unused = Random.randInt(); 41 } 42 } 43