1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// Copyright 2019 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include "pw_string/format.h"
#include <cstdarg>
#include <span>
#include "gtest/gtest.h"
namespace pw::string {
namespace {
TEST(Format, ValidFormatString_Succeeds) {
char buffer[32];
auto result = Format(buffer, "-_-");
EXPECT_EQ(OkStatus(), result.status());
EXPECT_EQ(3u, result.size());
EXPECT_STREQ("-_-", buffer);
}
TEST(Format, ValidFormatStringAndArguments_Succeeds) {
char buffer[32];
auto result = Format(buffer, "%d4%s", 123, "5");
EXPECT_EQ(OkStatus(), result.status());
EXPECT_EQ(5u, result.size());
EXPECT_STREQ("12345", buffer);
}
TEST(Format, EmptyBuffer_ReturnsResourceExhausted) {
auto result = Format(std::span<char>(), "?");
EXPECT_EQ(Status::ResourceExhausted(), result.status());
EXPECT_EQ(0u, result.size());
}
TEST(Format, FormatLargerThanBuffer_ReturnsResourceExhausted) {
char buffer[5];
auto result = Format(buffer, "2big!");
EXPECT_EQ(Status::ResourceExhausted(), result.status());
EXPECT_EQ(4u, result.size());
EXPECT_STREQ("2big", buffer);
}
TEST(Format, ArgumentLargerThanBuffer_ReturnsResourceExhausted) {
char buffer[5];
auto result = Format(buffer, "%s", "2big!");
EXPECT_EQ(Status::ResourceExhausted(), result.status());
EXPECT_EQ(4u, result.size());
EXPECT_STREQ("2big", buffer);
}
StatusWithSize CallFormatWithVaList(std::span<char> buffer,
const char* fmt,
...) {
va_list args;
va_start(args, fmt);
StatusWithSize result = FormatVaList(buffer, fmt, args);
va_end(args);
return result;
}
TEST(Format, CallFormatWithVaList_CallsCorrectFormatOverload) {
char buffer[8];
auto result = CallFormatWithVaList(buffer, "Yo%s", "?!");
EXPECT_EQ(OkStatus(), result.status());
EXPECT_EQ(4u, result.size());
EXPECT_STREQ("Yo?!", buffer);
}
} // namespace
} // namespace pw::string
|
