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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 "Grouper.h"
     18 
     19 #include "SplitDescription.h"
     20 
     21 #include <gtest/gtest.h>
     22 #include <utils/String8.h>
     23 #include <utils/Vector.h>
     24 
     25 using namespace android;
     26 
     27 namespace split {
     28 
     29 class GrouperTest : public ::testing::Test {
     30 protected:
     31     virtual void SetUp() {
     32         Vector<SplitDescription> splits;
     33         addSplit(splits, "en-rUS-sw600dp-hdpi");
     34         addSplit(splits, "fr-rFR-sw600dp-hdpi");
     35         addSplit(splits, "fr-rFR-sw600dp-xhdpi");
     36         addSplit(splits, ":armeabi");
     37         addSplit(splits, "en-rUS-sw300dp-xhdpi");
     38         addSplit(splits, "large");
     39         addSplit(splits, "pl-rPL");
     40         addSplit(splits, "fr-rCA");
     41         addSplit(splits, "fr");
     42         addSplit(splits, "xlarge");
     43         addSplit(splits, "en-rUS-sw600dp-xhdpi");
     44         addSplit(splits, "en-rUS-sw300dp-hdpi");
     45         addSplit(splits, "xxhdpi");
     46         addSplit(splits, "hdpi");
     47         addSplit(splits, "de-rDE");
     48         addSplit(splits, "xhdpi");
     49         addSplit(splits, ":x86");
     50         addSplit(splits, "anydpi");
     51         addSplit(splits, "v7");
     52         addSplit(splits, "v8");
     53         addSplit(splits, "sw600dp");
     54         addSplit(splits, "sw300dp");
     55         mGroups = groupByMutualExclusivity(splits);
     56     }
     57 
     58     void addSplit(Vector<SplitDescription>& splits, const char* str);
     59     void expectHasGroupWithSplits(const char* a);
     60     void expectHasGroupWithSplits(const char* a, const char* b);
     61     void expectHasGroupWithSplits(const char* a, const char* b, const char* c);
     62     void expectHasGroupWithSplits(const char* a, const char* b, const char* c, const char* d);
     63     void expectHasGroupWithSplits(const Vector<const char*>& expectedStrs);
     64 
     65     Vector<SortedVector<SplitDescription> > mGroups;
     66 };
     67 
     68 TEST_F(GrouperTest, shouldHaveCorrectNumberOfGroups) {
     69     EXPECT_EQ(15u, mGroups.size());
     70 }
     71 
     72 TEST_F(GrouperTest, shouldGroupDensities) {
     73     expectHasGroupWithSplits("en-rUS-sw300dp-hdpi", "en-rUS-sw300dp-xhdpi");
     74     expectHasGroupWithSplits("en-rUS-sw600dp-hdpi", "en-rUS-sw600dp-xhdpi");
     75     expectHasGroupWithSplits("fr-rFR-sw600dp-hdpi", "fr-rFR-sw600dp-xhdpi");
     76     expectHasGroupWithSplits("hdpi", "xhdpi", "xxhdpi", "anydpi");
     77 }
     78 
     79 TEST_F(GrouperTest, shouldGroupAbi) {
     80     expectHasGroupWithSplits(":armeabi", ":x86");
     81 }
     82 
     83 TEST_F(GrouperTest, shouldGroupLocale) {
     84     expectHasGroupWithSplits("pl-rPL");
     85     expectHasGroupWithSplits("de-rDE");
     86     expectHasGroupWithSplits("fr");
     87     expectHasGroupWithSplits("fr-rCA");
     88 }
     89 
     90 TEST_F(GrouperTest, shouldGroupEachSplitIntoItsOwnGroup) {
     91     expectHasGroupWithSplits("large");
     92     expectHasGroupWithSplits("xlarge");
     93     expectHasGroupWithSplits("v7");
     94     expectHasGroupWithSplits("v8");
     95     expectHasGroupWithSplits("sw600dp");
     96     expectHasGroupWithSplits("sw300dp");
     97 }
     98 
     99 //
    100 // Helper methods
    101 //
    102 
    103 void GrouperTest::expectHasGroupWithSplits(const char* a) {
    104     Vector<const char*> expected;
    105     expected.add(a);
    106     expectHasGroupWithSplits(expected);
    107 }
    108 
    109 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b) {
    110     Vector<const char*> expected;
    111     expected.add(a);
    112     expected.add(b);
    113     expectHasGroupWithSplits(expected);
    114 }
    115 
    116 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b, const char* c) {
    117     Vector<const char*> expected;
    118     expected.add(a);
    119     expected.add(b);
    120     expected.add(c);
    121     expectHasGroupWithSplits(expected);
    122 }
    123 
    124 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b, const char* c, const char* d) {
    125     Vector<const char*> expected;
    126     expected.add(a);
    127     expected.add(b);
    128     expected.add(c);
    129     expected.add(d);
    130     expectHasGroupWithSplits(expected);
    131 }
    132 
    133 void GrouperTest::expectHasGroupWithSplits(const Vector<const char*>& expectedStrs) {
    134     Vector<SplitDescription> splits;
    135     const size_t expectedStrCount = expectedStrs.size();
    136     for (size_t i = 0; i < expectedStrCount; i++) {
    137         splits.add();
    138         if (!SplitDescription::parse(String8(expectedStrs[i]), &splits.editTop())) {
    139             ADD_FAILURE() << "Failed to parse SplitDescription " << expectedStrs[i];
    140             return;
    141         }
    142     }
    143     const size_t splitCount = splits.size();
    144 
    145     const size_t groupCount = mGroups.size();
    146     for (size_t i = 0; i < groupCount; i++) {
    147         const SortedVector<SplitDescription>& group = mGroups[i];
    148         if (group.size() != splitCount) {
    149             continue;
    150         }
    151 
    152         size_t found = 0;
    153         for (size_t j = 0; j < splitCount; j++) {
    154             if (group.indexOf(splits[j]) >= 0) {
    155                 found++;
    156             }
    157         }
    158 
    159         if (found == splitCount) {
    160             return;
    161         }
    162     }
    163 
    164     String8 errorMessage("Failed to find expected group [");
    165     for (size_t i = 0; i < splitCount; i++) {
    166         if (i != 0) {
    167             errorMessage.append(", ");
    168         }
    169         errorMessage.append(splits[i].toString());
    170     }
    171     errorMessage.append("].\nActual:\n");
    172 
    173     for (size_t i = 0; i < groupCount; i++) {
    174         errorMessage.appendFormat("Group %d:\n", int(i + 1));
    175         const SortedVector<SplitDescription>& group = mGroups[i];
    176         for (size_t j = 0; j < group.size(); j++) {
    177             errorMessage.append("  ");
    178             errorMessage.append(group[j].toString());
    179             errorMessage.append("\n");
    180         }
    181     }
    182     ADD_FAILURE() << errorMessage.string();
    183 }
    184 
    185 void GrouperTest::addSplit(Vector<SplitDescription>& splits, const char* str) {
    186     splits.add();
    187     EXPECT_TRUE(SplitDescription::parse(String8(str), &splits.editTop()));
    188 }
    189 
    190 } // namespace split
    191