1/*
2 * Copyright (C) 2010 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#define LOG_TAG "String8_test"
18#include <utils/Log.h>
19#include <utils/String8.h>
20#include <utils/String16.h>
21
22#include <gtest/gtest.h>
23
24namespace android {
25
26class String8Test : public testing::Test {
27protected:
28    virtual void SetUp() {
29    }
30
31    virtual void TearDown() {
32    }
33};
34
35TEST_F(String8Test, Cstr) {
36    String8 tmp("Hello, world!");
37
38    EXPECT_STREQ(tmp.string(), "Hello, world!");
39}
40
41TEST_F(String8Test, OperatorPlus) {
42    String8 src1("Hello, ");
43
44    // Test adding String8 + const char*
45    const char* ccsrc2 = "world!";
46    String8 dst1 = src1 + ccsrc2;
47    EXPECT_STREQ(dst1.string(), "Hello, world!");
48    EXPECT_STREQ(src1.string(), "Hello, ");
49    EXPECT_STREQ(ccsrc2, "world!");
50
51    // Test adding String8 + String8
52    String8 ssrc2("world!");
53    String8 dst2 = src1 + ssrc2;
54    EXPECT_STREQ(dst2.string(), "Hello, world!");
55    EXPECT_STREQ(src1.string(), "Hello, ");
56    EXPECT_STREQ(ssrc2.string(), "world!");
57}
58
59TEST_F(String8Test, OperatorPlusEquals) {
60    String8 src1("My voice");
61
62    // Testing String8 += String8
63    String8 src2(" is my passport.");
64    src1 += src2;
65    EXPECT_STREQ(src1.string(), "My voice is my passport.");
66    EXPECT_STREQ(src2.string(), " is my passport.");
67
68    // Adding const char* to the previous string.
69    const char* src3 = " Verify me.";
70    src1 += src3;
71    EXPECT_STREQ(src1.string(), "My voice is my passport. Verify me.");
72    EXPECT_STREQ(src2.string(), " is my passport.");
73    EXPECT_STREQ(src3, " Verify me.");
74}
75
76TEST_F(String8Test, SetToSizeMaxReturnsNoMemory) {
77    const char *in = "some string";
78    EXPECT_EQ(NO_MEMORY, String8("").setTo(in, SIZE_MAX));
79}
80
81// http://b/29250543
82TEST_F(String8Test, CorrectInvalidSurrogate) {
83    // d841d8 is an invalid start for a surrogate pair. Make sure this is handled by ignoring the
84    // first character in the pair and handling the rest correctly.
85    String16 string16(u"\xd841\xd841\xdc41\x0000");
86    String8 string8(string16);
87
88    EXPECT_EQ(4U, string8.length());
89}
90
91TEST_F(String8Test, CheckUtf32Conversion) {
92    // Since bound checks were added, check the conversion can be done without fatal errors.
93    // The utf8 lengths of these are chars are 1 + 2 + 3 + 4 = 10.
94    const char32_t string32[] = U"\x0000007f\x000007ff\x0000911\x0010fffe";
95    String8 string8(string32);
96    EXPECT_EQ(10U, string8.length());
97}
98
99}
100