2014-09-04 20:42:10 +00:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2014 The Android Open Source Project
|
|
|
|
*
|
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
* you may not use this file except in compliance with the License.
|
|
|
|
* You may obtain a copy of the License at
|
|
|
|
*
|
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
*
|
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
* See the License for the specific language governing permissions and
|
|
|
|
* limitations under the License.
|
|
|
|
*/
|
|
|
|
|
|
|
|
package com.android.inputmethod.latin.utils;
|
|
|
|
|
|
|
|
import android.test.AndroidTestCase;
|
|
|
|
import android.test.suitebuilder.annotation.SmallTest;
|
|
|
|
|
2014-11-06 11:29:29 +00:00
|
|
|
import com.android.inputmethod.latin.common.CollectionUtils;
|
|
|
|
|
2014-09-04 20:42:10 +00:00
|
|
|
import java.util.ArrayList;
|
|
|
|
import java.util.Arrays;
|
|
|
|
import java.util.Collections;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Tests for {@link CollectionUtils}.
|
|
|
|
*/
|
|
|
|
@SmallTest
|
|
|
|
public class CollectionUtilsTests extends AndroidTestCase {
|
2014-10-28 21:22:09 +00:00
|
|
|
/**
|
|
|
|
* Tests that {@link CollectionUtils#arrayAsList(Object[],int,int)} fails as expected
|
|
|
|
* with some invalid inputs.
|
|
|
|
*/
|
|
|
|
public void testArrayAsListFailure() {
|
|
|
|
final String[] array = { "0", "1" };
|
|
|
|
// Negative start
|
|
|
|
try {
|
|
|
|
CollectionUtils.arrayAsList(array, -1, 1);
|
|
|
|
fail("Failed to catch start < 0");
|
|
|
|
} catch (final IllegalArgumentException e) {
|
|
|
|
assertEquals("Invalid start: -1 end: 1 with array.length: 2", e.getMessage());
|
|
|
|
}
|
|
|
|
// start > end
|
|
|
|
try {
|
|
|
|
CollectionUtils.arrayAsList(array, 1, -1);
|
|
|
|
fail("Failed to catch start > end");
|
|
|
|
} catch (final IllegalArgumentException e) {
|
|
|
|
assertEquals("Invalid start: 1 end: -1 with array.length: 2", e.getMessage());
|
|
|
|
}
|
|
|
|
// end > array.length
|
|
|
|
try {
|
|
|
|
CollectionUtils.arrayAsList(array, 1, 3);
|
|
|
|
fail("Failed to catch end > array.length");
|
|
|
|
} catch (final IllegalArgumentException e) {
|
|
|
|
assertEquals("Invalid start: 1 end: 3 with array.length: 2", e.getMessage());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-09-04 20:42:10 +00:00
|
|
|
/**
|
2014-10-22 05:04:07 +00:00
|
|
|
* Tests that {@link CollectionUtils#arrayAsList(Object[],int,int)} gives the expected
|
2014-09-04 20:42:10 +00:00
|
|
|
* results for a few valid inputs.
|
|
|
|
*/
|
|
|
|
public void testArrayAsList() {
|
|
|
|
final ArrayList<String> empty = new ArrayList<>();
|
2014-10-28 21:22:09 +00:00
|
|
|
assertEquals(empty, CollectionUtils.arrayAsList(new String[] { }, 0, 0));
|
|
|
|
final String[] array = { "0", "1", "2", "3", "4" };
|
2014-09-04 20:42:10 +00:00
|
|
|
assertEquals(empty, CollectionUtils.arrayAsList(array, 0, 0));
|
|
|
|
assertEquals(empty, CollectionUtils.arrayAsList(array, 1, 1));
|
2014-10-28 21:22:09 +00:00
|
|
|
assertEquals(empty, CollectionUtils.arrayAsList(array, array.length, array.length));
|
2014-09-04 20:42:10 +00:00
|
|
|
final ArrayList<String> expected123 = new ArrayList<>(Arrays.asList("1", "2", "3"));
|
|
|
|
assertEquals(expected123, CollectionUtils.arrayAsList(array, 1, 4));
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2014-10-22 05:04:07 +00:00
|
|
|
* Tests that {@link CollectionUtils#isNullOrEmpty(java.util.Collection)} gives the expected
|
2014-09-04 20:42:10 +00:00
|
|
|
* results for a few cases.
|
|
|
|
*/
|
|
|
|
public void testIsNullOrEmpty() {
|
|
|
|
assertTrue(CollectionUtils.isNullOrEmpty(null));
|
2014-10-20 05:48:56 +00:00
|
|
|
assertTrue(CollectionUtils.isNullOrEmpty(new ArrayList<>()));
|
2014-09-04 20:42:10 +00:00
|
|
|
assertTrue(CollectionUtils.isNullOrEmpty(Collections.EMPTY_SET));
|
|
|
|
assertFalse(CollectionUtils.isNullOrEmpty(Collections.singleton("Not empty")));
|
|
|
|
}
|
|
|
|
}
|