| /* |
| * Copyright (C) 2017 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.settingslib; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.annotation.Config; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| @RunWith(SettingLibRobolectricTestRunner.class) |
| @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION) |
| public class UtilsTest { |
| private static final double[] TEST_PERCENTAGES = {0, 0.4, 0.5, 0.6, 49, 49.3, 49.8, 50, 100}; |
| private static final String PERCENTAGE_0 = "0%"; |
| private static final String PERCENTAGE_1 = "1%"; |
| private static final String PERCENTAGE_49 = "49%"; |
| private static final String PERCENTAGE_50 = "50%"; |
| private static final String PERCENTAGE_100 = "100%"; |
| |
| @Test |
| public void testFormatPercentage_RoundTrue_RoundUpIfPossible() { |
| final String[] expectedPercentages = {PERCENTAGE_0, PERCENTAGE_0, PERCENTAGE_1, |
| PERCENTAGE_1, PERCENTAGE_49, PERCENTAGE_49, PERCENTAGE_50, PERCENTAGE_50, |
| PERCENTAGE_100}; |
| |
| for (int i = 0, size = TEST_PERCENTAGES.length; i < size; i++) { |
| final String percentage = Utils.formatPercentage(TEST_PERCENTAGES[i], true); |
| assertThat(percentage).isEqualTo(expectedPercentages[i]); |
| } |
| } |
| |
| @Test |
| public void testFormatPercentage_RoundFalse_NoRound() { |
| final String[] expectedPercentages = {PERCENTAGE_0, PERCENTAGE_0, PERCENTAGE_0, |
| PERCENTAGE_0, PERCENTAGE_49, PERCENTAGE_49, PERCENTAGE_49, PERCENTAGE_50, |
| PERCENTAGE_100}; |
| |
| for (int i = 0, size = TEST_PERCENTAGES.length; i < size; i++) { |
| final String percentage = Utils.formatPercentage(TEST_PERCENTAGES[i], false); |
| assertThat(percentage).isEqualTo(expectedPercentages[i]); |
| } |
| } |
| } |