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1 // Copyright 2014 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <string.h> | |
6 #include <limits> | |
7 | |
8 #include "include/v8stdint.h" | |
9 #include "src/ostreams.h" | |
10 #include "test/cctest/cctest.h" | |
11 | |
12 using namespace v8::internal; | |
13 | |
14 | |
15 TEST(OStringStreamConstructor) { | |
16 OStringStream oss; | |
17 const size_t expected_size = 0; | |
18 CHECK(expected_size == oss.size()); | |
19 CHECK_GT(oss.capacity(), 0); | |
20 CHECK_NE(NULL, oss.data()); | |
21 CHECK_EQ("", oss.c_str()); | |
22 } | |
23 | |
24 | |
25 #define TEST_STRING \ | |
26 "Ash nazg durbatuluk, " \ | |
27 "ash nazg gimbatul, " \ | |
28 "ash nazg thrakatuluk, " \ | |
29 "agh burzum-ishi krimpatul." | |
30 | |
31 TEST(OStringStreamGrow) { | |
32 OStringStream oss; | |
33 const int repeat = 30; | |
34 size_t len = strlen(TEST_STRING); | |
35 for (int i = 0; i < repeat; ++i) { | |
36 oss.write(TEST_STRING, len); | |
37 } | |
38 const char* expected = | |
39 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING | |
40 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING | |
41 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING | |
42 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING | |
43 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING | |
44 TEST_STRING TEST_STRING TEST_STRING TEST_STRING TEST_STRING; | |
45 const size_t expected_len = len * repeat; | |
46 CHECK(expected_len == oss.size()); | |
47 CHECK_GT(oss.capacity(), 0); | |
48 CHECK_EQ(0, strncmp(expected, oss.data(), expected_len)); | |
49 CHECK_EQ(expected, oss.c_str()); | |
50 } | |
51 | |
52 | |
53 template <class T> | |
54 static void check(const char* expected, T value) { | |
55 OStringStream oss; | |
56 oss << value << " " << hex << value; | |
57 CHECK_EQ(expected, oss.c_str()); | |
58 } | |
59 | |
60 | |
61 TEST(NumericFormatting) { | |
62 check<bool>("0 0", false); | |
63 check<bool>("1 1", true); | |
64 | |
65 check<int16_t>("-12345 cfc7", -12345); | |
66 check<int16_t>("-32768 8000", std::numeric_limits<int16_t>::min()); | |
67 check<int16_t>("32767 7fff", std::numeric_limits<int16_t>::max()); | |
68 | |
69 check<uint16_t>("34567 8707", 34567); | |
70 check<uint16_t>("0 0", std::numeric_limits<uint16_t>::min()); | |
71 check<uint16_t>("65535 ffff", std::numeric_limits<uint16_t>::max()); | |
72 | |
73 check<int32_t>("-1234567 ffed2979", -1234567); | |
74 check<int32_t>("-2147483648 80000000", std::numeric_limits<int32_t>::min()); | |
75 check<int32_t>("2147483647 7fffffff", std::numeric_limits<int32_t>::max()); | |
76 | |
77 check<uint32_t>("3456789 34bf15", 3456789); | |
78 check<uint32_t>("0 0", std::numeric_limits<uint32_t>::min()); | |
79 check<uint32_t>("4294967295 ffffffff", std::numeric_limits<uint32_t>::max()); | |
80 | |
81 check<int64_t>("-1234567 ffffffffffed2979", -1234567); | |
82 check<int64_t>("-9223372036854775808 8000000000000000", | |
83 std::numeric_limits<int64_t>::min()); | |
84 check<int64_t>("9223372036854775807 7fffffffffffffff", | |
85 std::numeric_limits<int64_t>::max()); | |
86 | |
87 check<uint64_t>("3456789 34bf15", 3456789); | |
88 check<uint64_t>("0 0", std::numeric_limits<uint64_t>::min()); | |
89 check<uint64_t>("18446744073709551615 ffffffffffffffff", | |
90 std::numeric_limits<uint64_t>::max()); | |
91 | |
92 check<float>("0 0", 0.0f); | |
93 check<float>("123 123", 123.0f); | |
94 check<float>("-0.5 -0.5", -0.5f); | |
95 check<float>("1.25 1.25", 1.25f); | |
96 check<float>("0.0625 0.0625", 6.25e-2f); | |
97 | |
98 check<double>("0 0", 0.0); | |
99 check<double>("123 123", 123.0); | |
100 check<double>("-0.5 -0.5", -0.5); | |
101 check<double>("1.25 1.25", 1.25); | |
102 check<double>("0.0625 0.0625", 6.25e-2); | |
103 } | |
104 | |
105 | |
106 TEST(CharacterOutput) { | |
107 check<char>("a a", 'a'); | |
108 check<signed char>("B B", 'B'); | |
109 check<unsigned char>("9 9", '9'); | |
110 check<const char*>("bye bye", "bye"); | |
111 | |
112 OStringStream os; | |
113 os.put('H').write("ello", 4); | |
114 CHECK_EQ("Hello", os.c_str()); | |
115 } | |
116 | |
117 | |
118 TEST(Manipulators) { | |
119 OStringStream os; | |
120 os << 123 << hex << 123 << endl << 123 << dec << 123 << 123; | |
121 CHECK_EQ("1237b\n7b123123", os.c_str()); | |
122 } | |
123 | |
124 | |
125 class MiscStuff { | |
126 public: | |
127 MiscStuff(int i, double d, const char* s) : i_(i), d_(d), s_(s) { } | |
128 | |
129 private: | |
130 friend OStream& operator<<(OStream& os, const MiscStuff& m); | |
131 | |
132 int i_; | |
133 double d_; | |
134 const char* s_; | |
135 }; | |
136 | |
137 | |
138 OStream& operator<<(OStream& os, const MiscStuff& m) { | |
139 return os << "{i:" << m.i_ << ", d:" << m.d_ << ", s:'" << m.s_ << "'}"; | |
140 } | |
141 | |
142 | |
143 TEST(CustomOutput) { | |
144 OStringStream os; | |
145 MiscStuff m(123, 4.5, "Hurz!"); | |
146 os << m; | |
147 CHECK_EQ("{i:123, d:4.5, s:'Hurz!'}", os.c_str()); | |
148 } | |
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