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:
SetUp()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, "xlarge");
41         addSplit(splits, "en-rUS-sw600dp-xhdpi");
42         addSplit(splits, "en-rUS-sw300dp-hdpi");
43         addSplit(splits, "xxhdpi");
44         addSplit(splits, "hdpi");
45         addSplit(splits, "de-rDE");
46         addSplit(splits, "xhdpi");
47         addSplit(splits, ":x86");
48         addSplit(splits, "anydpi");
49         addSplit(splits, "v7");
50         addSplit(splits, "v8");
51         addSplit(splits, "sw600dp");
52         addSplit(splits, "sw300dp");
53         mGroups = groupByMutualExclusivity(splits);
54     }
55 
56     void addSplit(Vector<SplitDescription>& splits, const char* str);
57     void expectHasGroupWithSplits(const char* a);
58     void expectHasGroupWithSplits(const char* a, const char* b);
59     void expectHasGroupWithSplits(const char* a, const char* b, const char* c);
60     void expectHasGroupWithSplits(const char* a, const char* b, const char* c, const char* d);
61     void expectHasGroupWithSplits(const Vector<const char*>& expectedStrs);
62 
63     Vector<SortedVector<SplitDescription> > mGroups;
64 };
65 
TEST_F(GrouperTest,shouldHaveCorrectNumberOfGroups)66 TEST_F(GrouperTest, shouldHaveCorrectNumberOfGroups) {
67     EXPECT_EQ(12u, mGroups.size());
68 }
69 
TEST_F(GrouperTest,shouldGroupDensities)70 TEST_F(GrouperTest, shouldGroupDensities) {
71     expectHasGroupWithSplits("en-rUS-sw300dp-hdpi", "en-rUS-sw300dp-xhdpi");
72     expectHasGroupWithSplits("en-rUS-sw600dp-hdpi", "en-rUS-sw600dp-xhdpi");
73     expectHasGroupWithSplits("fr-rFR-sw600dp-hdpi", "fr-rFR-sw600dp-xhdpi");
74     expectHasGroupWithSplits("hdpi", "xhdpi", "xxhdpi", "anydpi");
75 }
76 
TEST_F(GrouperTest,shouldGroupAbi)77 TEST_F(GrouperTest, shouldGroupAbi) {
78     expectHasGroupWithSplits(":armeabi", ":x86");
79 }
80 
TEST_F(GrouperTest,shouldGroupLocale)81 TEST_F(GrouperTest, shouldGroupLocale) {
82     expectHasGroupWithSplits("pl-rPL", "de-rDE");
83 }
84 
TEST_F(GrouperTest,shouldGroupEachSplitIntoItsOwnGroup)85 TEST_F(GrouperTest, shouldGroupEachSplitIntoItsOwnGroup) {
86     expectHasGroupWithSplits("large");
87     expectHasGroupWithSplits("xlarge");
88     expectHasGroupWithSplits("v7");
89     expectHasGroupWithSplits("v8");
90     expectHasGroupWithSplits("sw600dp");
91     expectHasGroupWithSplits("sw300dp");
92 }
93 
94 //
95 // Helper methods
96 //
97 
expectHasGroupWithSplits(const char * a)98 void GrouperTest::expectHasGroupWithSplits(const char* a) {
99     Vector<const char*> expected;
100     expected.add(a);
101     expectHasGroupWithSplits(expected);
102 }
103 
expectHasGroupWithSplits(const char * a,const char * b)104 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b) {
105     Vector<const char*> expected;
106     expected.add(a);
107     expected.add(b);
108     expectHasGroupWithSplits(expected);
109 }
110 
expectHasGroupWithSplits(const char * a,const char * b,const char * c)111 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b, const char* c) {
112     Vector<const char*> expected;
113     expected.add(a);
114     expected.add(b);
115     expected.add(c);
116     expectHasGroupWithSplits(expected);
117 }
118 
expectHasGroupWithSplits(const char * a,const char * b,const char * c,const char * d)119 void GrouperTest::expectHasGroupWithSplits(const char* a, const char* b, const char* c, const char* d) {
120     Vector<const char*> expected;
121     expected.add(a);
122     expected.add(b);
123     expected.add(c);
124     expected.add(d);
125     expectHasGroupWithSplits(expected);
126 }
127 
expectHasGroupWithSplits(const Vector<const char * > & expectedStrs)128 void GrouperTest::expectHasGroupWithSplits(const Vector<const char*>& expectedStrs) {
129     Vector<SplitDescription> splits;
130     const size_t expectedStrCount = expectedStrs.size();
131     for (size_t i = 0; i < expectedStrCount; i++) {
132         splits.add();
133         if (!SplitDescription::parse(String8(expectedStrs[i]), &splits.editTop())) {
134             ADD_FAILURE() << "Failed to parse SplitDescription " << expectedStrs[i];
135             return;
136         }
137     }
138     const size_t splitCount = splits.size();
139 
140     const size_t groupCount = mGroups.size();
141     for (size_t i = 0; i < groupCount; i++) {
142         const SortedVector<SplitDescription>& group = mGroups[i];
143         if (group.size() != splitCount) {
144             continue;
145         }
146 
147         size_t found = 0;
148         for (size_t j = 0; j < splitCount; j++) {
149             if (group.indexOf(splits[j]) >= 0) {
150                 found++;
151             }
152         }
153 
154         if (found == splitCount) {
155             return;
156         }
157     }
158 
159     String8 errorMessage("Failed to find expected group [");
160     for (size_t i = 0; i < splitCount; i++) {
161         if (i != 0) {
162             errorMessage.append(", ");
163         }
164         errorMessage.append(splits[i].toString());
165     }
166     errorMessage.append("].\nActual:\n");
167 
168     for (size_t i = 0; i < groupCount; i++) {
169         errorMessage.appendFormat("Group %d:\n", int(i + 1));
170         const SortedVector<SplitDescription>& group = mGroups[i];
171         for (size_t j = 0; j < group.size(); j++) {
172             errorMessage.append("  ");
173             errorMessage.append(group[j].toString());
174             errorMessage.append("\n");
175         }
176     }
177     ADD_FAILURE() << errorMessage.string();
178 }
179 
addSplit(Vector<SplitDescription> & splits,const char * str)180 void GrouperTest::addSplit(Vector<SplitDescription>& splits, const char* str) {
181     splits.add();
182     EXPECT_TRUE(SplitDescription::parse(String8(str), &splits.editTop()));
183 }
184 
185 } // namespace split
186