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      1 /*
      2  * Copyright (C) 2014 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  */
     16 
     17 #include <androidfw/ResourceTypes.h>
     18 #include <utils/Log.h>
     19 #include <utils/String8.h>
     20 #include <utils/Vector.h>
     21 
     22 #include "TestHelpers.h"
     23 #include <gtest/gtest.h>
     24 
     25 namespace android {
     26 
     27 static ResTable_config selectBest(const ResTable_config& target,
     28         const Vector<ResTable_config>& configs) {
     29     ResTable_config bestConfig;
     30     memset(&bestConfig, 0, sizeof(bestConfig));
     31     const size_t configCount = configs.size();
     32     for (size_t i = 0; i < configCount; i++) {
     33         const ResTable_config& thisConfig = configs[i];
     34         if (!thisConfig.match(target)) {
     35             continue;
     36         }
     37 
     38         if (thisConfig.isBetterThan(bestConfig, &target)) {
     39             bestConfig = thisConfig;
     40         }
     41     }
     42     return bestConfig;
     43 }
     44 
     45 static ResTable_config buildDensityConfig(int density) {
     46     ResTable_config config;
     47     memset(&config, 0, sizeof(config));
     48     config.density = uint16_t(density);
     49     config.sdkVersion = 4;
     50     return config;
     51 }
     52 
     53 TEST(ConfigTest, shouldSelectBestDensity) {
     54     ResTable_config deviceConfig;
     55     memset(&deviceConfig, 0, sizeof(deviceConfig));
     56     deviceConfig.density = ResTable_config::DENSITY_XHIGH;
     57     deviceConfig.sdkVersion = 21;
     58 
     59     Vector<ResTable_config> configs;
     60 
     61     ResTable_config expectedBest = buildDensityConfig(ResTable_config::DENSITY_HIGH);
     62     configs.add(expectedBest);
     63     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     64 
     65     expectedBest = buildDensityConfig(ResTable_config::DENSITY_XXHIGH);
     66     configs.add(expectedBest);
     67     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     68 
     69     expectedBest = buildDensityConfig(int(ResTable_config::DENSITY_XXHIGH) - 20);
     70     configs.add(expectedBest);
     71     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     72 
     73     configs.add(buildDensityConfig(int(ResTable_config::DENSITY_HIGH) + 20));
     74     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     75 
     76     expectedBest = buildDensityConfig(ResTable_config::DENSITY_XHIGH);
     77     configs.add(expectedBest);
     78     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     79 
     80     expectedBest = buildDensityConfig(ResTable_config::DENSITY_ANY);
     81     expectedBest.sdkVersion = 21;
     82     configs.add(expectedBest);
     83     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     84 }
     85 
     86 TEST(ConfigTest, shouldSelectBestDensityWhenNoneSpecified) {
     87     ResTable_config deviceConfig;
     88     memset(&deviceConfig, 0, sizeof(deviceConfig));
     89     deviceConfig.sdkVersion = 21;
     90 
     91     Vector<ResTable_config> configs;
     92     configs.add(buildDensityConfig(ResTable_config::DENSITY_HIGH));
     93 
     94     ResTable_config expectedBest = buildDensityConfig(ResTable_config::DENSITY_MEDIUM);
     95     configs.add(expectedBest);
     96     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
     97 
     98     expectedBest = buildDensityConfig(ResTable_config::DENSITY_ANY);
     99     configs.add(expectedBest);
    100     ASSERT_EQ(expectedBest, selectBest(deviceConfig, configs));
    101 }
    102 
    103 TEST(ConfigTest, shouldMatchRoundQualifier) {
    104     ResTable_config deviceConfig;
    105     memset(&deviceConfig, 0, sizeof(deviceConfig));
    106 
    107     ResTable_config roundConfig;
    108     memset(&roundConfig, 0, sizeof(roundConfig));
    109     roundConfig.screenLayout2 = ResTable_config::SCREENROUND_YES;
    110 
    111     EXPECT_FALSE(roundConfig.match(deviceConfig));
    112 
    113     deviceConfig.screenLayout2 = ResTable_config::SCREENROUND_YES;
    114 
    115     EXPECT_TRUE(roundConfig.match(deviceConfig));
    116 
    117     deviceConfig.screenLayout2 = ResTable_config::SCREENROUND_NO;
    118 
    119     EXPECT_FALSE(roundConfig.match(deviceConfig));
    120 
    121     ResTable_config notRoundConfig;
    122     memset(&notRoundConfig, 0, sizeof(notRoundConfig));
    123     notRoundConfig.screenLayout2 = ResTable_config::SCREENROUND_NO;
    124 
    125     EXPECT_TRUE(notRoundConfig.match(deviceConfig));
    126 }
    127 
    128 TEST(ConfigTest, RoundQualifierShouldHaveStableSortOrder) {
    129     ResTable_config defaultConfig;
    130     memset(&defaultConfig, 0, sizeof(defaultConfig));
    131 
    132     ResTable_config longConfig = defaultConfig;
    133     longConfig.screenLayout = ResTable_config::SCREENLONG_YES;
    134 
    135     ResTable_config longRoundConfig = longConfig;
    136     longRoundConfig.screenLayout2 = ResTable_config::SCREENROUND_YES;
    137 
    138     ResTable_config longRoundPortConfig = longConfig;
    139     longRoundPortConfig.orientation = ResTable_config::ORIENTATION_PORT;
    140 
    141     EXPECT_TRUE(longConfig.compare(longRoundConfig) < 0);
    142     EXPECT_TRUE(longConfig.compareLogical(longRoundConfig) < 0);
    143     EXPECT_TRUE(longRoundConfig.compare(longConfig) > 0);
    144     EXPECT_TRUE(longRoundConfig.compareLogical(longConfig) > 0);
    145 
    146     EXPECT_TRUE(longRoundConfig.compare(longRoundPortConfig) < 0);
    147     EXPECT_TRUE(longRoundConfig.compareLogical(longRoundPortConfig) < 0);
    148     EXPECT_TRUE(longRoundPortConfig.compare(longRoundConfig) > 0);
    149     EXPECT_TRUE(longRoundPortConfig.compareLogical(longRoundConfig) > 0);
    150 }
    151 
    152 TEST(ConfigTest, ScreenShapeHasCorrectDiff) {
    153     ResTable_config defaultConfig;
    154     memset(&defaultConfig, 0, sizeof(defaultConfig));
    155 
    156     ResTable_config roundConfig = defaultConfig;
    157     roundConfig.screenLayout2 = ResTable_config::SCREENROUND_YES;
    158 
    159     EXPECT_EQ(defaultConfig.diff(roundConfig), ResTable_config::CONFIG_SCREEN_ROUND);
    160 }
    161 
    162 TEST(ConfigTest, RoundIsMoreSpecific) {
    163     ResTable_config deviceConfig;
    164     memset(&deviceConfig, 0, sizeof(deviceConfig));
    165     deviceConfig.screenLayout2 = ResTable_config::SCREENROUND_YES;
    166     deviceConfig.screenLayout = ResTable_config::SCREENLONG_YES;
    167 
    168     ResTable_config targetConfigA;
    169     memset(&targetConfigA, 0, sizeof(targetConfigA));
    170 
    171     ResTable_config targetConfigB = targetConfigA;
    172     targetConfigB.screenLayout = ResTable_config::SCREENLONG_YES;
    173 
    174     ResTable_config targetConfigC = targetConfigB;
    175     targetConfigC.screenLayout2 = ResTable_config::SCREENROUND_YES;
    176 
    177     EXPECT_TRUE(targetConfigB.isBetterThan(targetConfigA, &deviceConfig));
    178     EXPECT_TRUE(targetConfigC.isBetterThan(targetConfigB, &deviceConfig));
    179 }
    180 
    181 }  // namespace android.
    182