Files
openthread/tests/unit/test_string.cpp
T
Abtin Keshavarzian f4001aa26d [log] fix uninitialized string use (#6584)
This commit fixes an issue with some of the log related methods where
`String` object may be used without being initialized (this was added
from commit b39f5b6dd and PR #6564).

This commit ensures that `String` variable definitions are always
immediately  followed by a `StringWriter()` definition which then
initializes the string buffer (sets it as empty).

This commit also updates `test_string` unit test.
2021-05-06 19:27:58 -07:00

177 lines
7.0 KiB
C++

/*
* Copyright (c) 2018, The OpenThread Authors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "test_platform.h"
#include <openthread/config.h>
#include "test_util.h"
#include "common/code_utils.hpp"
#include "common/string.hpp"
namespace ot {
enum
{
kStringSize = 10,
};
template <uint16_t kSize> void PrintString(const char *aName, const String<kSize> aString)
{
printf("\t%s = [%zu] \"%s\"\n", aName, strlen(aString.AsCString()), aString.AsCString());
}
void TestStringWriter(void)
{
String<kStringSize> str;
StringWriter writer(str);
constexpr char kLongString[] = "abcdefghijklmnopqratuvwxyzabcdefghijklmnopqratuvwxyz";
printf("\nTest 1: StringWriter constructor\n");
VerifyOrQuit(writer.GetSize() == kStringSize, "GetSize() failed");
VerifyOrQuit(writer.GetLength() == 0, "GetLength() failed for empty string");
VerifyOrQuit(strcmp(str.AsCString(), "") == 0, "String content is incorrect");
PrintString("str", str);
printf(" -- PASS\n");
printf("\nTest 2: StringWriter::Append() method\n");
writer.Append("Hi");
VerifyOrQuit(writer.GetLength() == 2, "GetLength() failed");
VerifyOrQuit(strcmp(str.AsCString(), "Hi") == 0, "String content is incorrect");
PrintString("str", str);
writer.Append("%s%d", "!", 12);
VerifyOrQuit(writer.GetLength() == 5, "GetLength() failed");
VerifyOrQuit(strcmp(str.AsCString(), "Hi!12") == 0, "String content is incorrect");
PrintString("str", str);
writer.Append(kLongString);
VerifyOrQuit(writer.IsTruncated() && writer.GetLength() == 5 + sizeof(kLongString) - 1,
"String::Append() did not handle overflow buffer correctly");
PrintString("str", str);
printf("\nTest 3: StringWriter::Clear() method\n");
writer.Clear();
writer.Append("Hello");
VerifyOrQuit(writer.GetLength() == 5, "GetLength() failed for empty string");
VerifyOrQuit(strcmp(str.AsCString(), "Hello") == 0, "String content is incorrect");
PrintString("str", str);
writer.Clear();
VerifyOrQuit(writer.GetLength() == 0, "GetLength() failed for empty string");
VerifyOrQuit(strcmp(str.AsCString(), "") == 0, "String content is incorrect");
writer.Append("%d", 12);
VerifyOrQuit(writer.GetLength() == 2, "GetLength() failed");
VerifyOrQuit(strcmp(str.AsCString(), "12") == 0, "String content is incorrect");
PrintString("str", str);
writer.Clear().Append(kLongString);
VerifyOrQuit(writer.IsTruncated() && writer.GetLength() == sizeof(kLongString) - 1,
"String::Clear() + String::Append() did not handle overflow buffer correctly");
PrintString("str", str);
printf(" -- PASS\n");
}
void TestStringLength(void)
{
char string_a[5] = "\0foo";
char string_b[8] = "foo\0bar";
printf("\nTest 4: String::StringLength() method\n");
VerifyOrQuit(StringLength(string_a, 0) == 0, "StringLength() 0len 0 fails");
VerifyOrQuit(StringLength(string_a, 1) == 0, "StringLength() 0len 1 fails");
VerifyOrQuit(StringLength(string_a, 2) == 0, "StringLength() 0len 2 fails");
VerifyOrQuit(StringLength(string_b, 0) == 0, "StringLength() 3len 0 fails");
VerifyOrQuit(StringLength(string_b, 1) == 1, "StringLength() 3len 1 fails");
VerifyOrQuit(StringLength(string_b, 2) == 2, "StringLength() 3len 2 fails");
VerifyOrQuit(StringLength(string_b, 3) == 3, "StringLength() 3len 3 fails");
VerifyOrQuit(StringLength(string_b, 4) == 3, "StringLength() 3len 4 fails");
VerifyOrQuit(StringLength(string_b, 5) == 3, "StringLength() 3len 5 fails");
VerifyOrQuit(StringLength(string_b, 6) == 3, "StringLength() 3len 6 fails");
printf(" -- PASS\n");
}
void TestUtf8(void)
{
printf("\nTest 5: IsValidUtf8String() function\n");
VerifyOrQuit(IsValidUtf8String("An ASCII string"), "IsValidUtf8String() ASCII string fails");
VerifyOrQuit(IsValidUtf8String(u8"Строка UTF-8"), "IsValidUtf8String() UTF-8 string fails");
VerifyOrQuit(!IsValidUtf8String("\xbf"), "IsValidUtf8String() illegal string fails");
VerifyOrQuit(!IsValidUtf8String("\xdf"), "IsValidUtf8String() illegal string fails");
VerifyOrQuit(!IsValidUtf8String("\xef\x80"), "IsValidUtf8String() illegal string fails");
VerifyOrQuit(!IsValidUtf8String("\xf7\x80\x80"), "IsValidUtf8String() illegal string fails");
VerifyOrQuit(!IsValidUtf8String("\xff"), "IsValidUtf8String() illegal string fails");
printf(" -- PASS\n");
}
void TestStringFind(void)
{
char emptyString[1] = {'\0'};
char testString[] = "foo.bar\\.";
printf("\nTest 6: StringFind() function\n");
VerifyOrQuit(StringFind(testString, 'f') == testString, "StringFind() failed");
VerifyOrQuit(StringFind(testString, 'o') == &testString[1], "StringFind() failed");
VerifyOrQuit(StringFind(testString, '.') == &testString[3], "StringFind() failed");
VerifyOrQuit(StringFind(testString, 'r') == &testString[6], "StringFind() failed");
VerifyOrQuit(StringFind(testString, '\\') == &testString[7], "StringFind() failed");
VerifyOrQuit(StringFind(testString, 'x') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(testString, ',') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, 'f') == nullptr, "StringFind() failed");
VerifyOrQuit(StringFind(emptyString, '.') == nullptr, "StringFind() failed");
printf(" -- PASS\n");
}
} // namespace ot
int main(void)
{
ot::TestStringWriter();
ot::TestStringLength();
ot::TestUtf8();
ot::TestStringFind();
printf("\nAll tests passed.\n");
return 0;
}