1/*
2 * Copyright (C) 2016 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 <gtest/gtest.h>
18
19#include "HbFontCache.h"
20
21#include <cutils/log.h>
22#include <hb.h>
23#include <utils/Mutex.h>
24
25#include "MinikinInternal.h"
26#include "MinikinFontForTest.h"
27#include <minikin/MinikinFont.h>
28
29namespace android {
30namespace {
31
32class HbFontCacheTest : public testing::Test {
33public:
34    virtual void TearDown() {
35        AutoMutex _l(gMinikinLock);
36        purgeHbFontCacheLocked();
37    }
38};
39
40TEST_F(HbFontCacheTest, getHbFontLockedTest) {
41    AutoMutex _l(gMinikinLock);
42
43    MinikinFontForTest fontA(kTestFontDir "Regular.ttf");
44    MinikinFontForTest fontB(kTestFontDir "Bold.ttf");
45    MinikinFontForTest fontC(kTestFontDir "BoldItalic.ttf");
46
47    // Never return NULL.
48    EXPECT_NE(nullptr, getHbFontLocked(&fontA));
49    EXPECT_NE(nullptr, getHbFontLocked(&fontB));
50    EXPECT_NE(nullptr, getHbFontLocked(&fontC));
51
52    EXPECT_NE(nullptr, getHbFontLocked(nullptr));
53
54    // Must return same object if same font object is passed.
55    EXPECT_EQ(getHbFontLocked(&fontA), getHbFontLocked(&fontA));
56    EXPECT_EQ(getHbFontLocked(&fontB), getHbFontLocked(&fontB));
57    EXPECT_EQ(getHbFontLocked(&fontC), getHbFontLocked(&fontC));
58
59    // Different object must be returned if the passed minikinFont has different ID.
60    EXPECT_NE(getHbFontLocked(&fontA), getHbFontLocked(&fontB));
61    EXPECT_NE(getHbFontLocked(&fontA), getHbFontLocked(&fontC));
62}
63
64TEST_F(HbFontCacheTest, purgeCacheTest) {
65    AutoMutex _l(gMinikinLock);
66    MinikinFontForTest minikinFont(kTestFontDir "Regular.ttf");
67
68    hb_font_t* font = getHbFontLocked(&minikinFont);
69    ASSERT_NE(nullptr, font);
70
71    // Set user data to identify the font object.
72    hb_user_data_key_t key;
73    void* data = (void*)0xdeadbeef;
74    hb_font_set_user_data(font, &key, data, NULL, false);
75    ASSERT_EQ(data, hb_font_get_user_data(font, &key));
76
77    purgeHbFontCacheLocked();
78
79    // By checking user data, confirm that the object after purge is different from previously
80    // created one. Do not compare the returned pointer here since memory allocator may assign
81    // same region for new object.
82    font = getHbFontLocked(&minikinFont);
83    EXPECT_EQ(nullptr, hb_font_get_user_data(font, &key));
84}
85
86}  // namespace
87}  // namespace android
88