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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 package org.chromium.content.browser.input; |
| 6 |
| 7 import static org.junit.Assert.assertEquals; |
| 8 import static org.junit.Assert.assertFalse; |
| 9 import static org.junit.Assert.assertTrue; |
| 10 |
| 11 import org.chromium.base.test.util.Feature; |
| 12 import org.junit.Test; |
| 13 import org.junit.runner.RunWith; |
| 14 import org.junit.runners.BlockJUnit4ClassRunner; |
| 15 |
| 16 /** |
| 17 * Unit tests for {@Range}. |
| 18 */ |
| 19 @RunWith(BlockJUnit4ClassRunner.class) |
| 20 public class RangeTest { |
| 21 @Test |
| 22 @Feature({"TextInput"}) |
| 23 public void testClamp() { |
| 24 // Overlap case #1 |
| 25 Range range = new Range(1, 4); |
| 26 range.clamp(2, 5); |
| 27 assertEquals(new Range(2, 4), range); |
| 28 // Overlap case #2 |
| 29 range.set(1, 4); |
| 30 range.clamp(0, 2); |
| 31 assertEquals(new Range(1, 2), range); |
| 32 // Clamp on both ends |
| 33 range.set(1, 4); |
| 34 range.clamp(2, 3); |
| 35 assertEquals(new Range(2, 3), range); |
| 36 // No-op |
| 37 range.set(1, 4); |
| 38 range.clamp(0, 5); |
| 39 assertEquals(new Range(1, 4), range); |
| 40 } |
| 41 |
| 42 @Test |
| 43 @Feature({"TextInput"}) |
| 44 public void testEquals() { |
| 45 assertTrue(new Range(1, 3).equals(new Range(1, 3))); |
| 46 assertFalse(new Range(1, 2).equals(new Range(1, 3))); |
| 47 Range range = new Range(1, 4); |
| 48 assertTrue(range.equals(range)); |
| 49 } |
| 50 } |
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