// 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.
-//
-// Author: wan@google.com (Zhanyong Wan)
-// Google Test - The Google C++ Testing Framework
+
+// Google Test - The Google C++ Testing and Mocking Framework
//
// This file implements a universal value printer that can print a
// value of any type T:
// defines Foo.
#include "gtest/gtest-printers.h"
-#include <ctype.h>
#include <stdio.h>
+#include <cctype>
#include <cwchar>
#include <ostream> // NOLINT
#include <string>
#include "gtest/internal/gtest-port.h"
+#include "src/gtest-internal-inl.h"
namespace testing {
// Prints a segment of bytes in the given object.
GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
void PrintByteSegmentInObjectTo(const unsigned char* obj_bytes, size_t start,
size_t count, ostream* os) {
// If the object size is bigger than kThreshold, we'll have to omit
// some details by printing only the first and the last kChunkSize
// bytes.
- // TODO(wan): let the user control the threshold using a flag.
if (count < kThreshold) {
PrintByteSegmentInObjectTo(obj_bytes, 0, count, os);
} else {
// Depending on the value of a char (or wchar_t), we print it in one
// of three formats:
// - as is if it's a printable ASCII (e.g. 'a', '2', ' '),
-// - as a hexidecimal escape sequence (e.g. '\x7F'), or
+// - as a hexadecimal escape sequence (e.g. '\x7F'), or
// - as a special escape sequence (e.g. '\r', '\n').
enum CharFormat {
kAsIs,
// which is the type of c.
template <typename UnsignedChar, typename Char>
static CharFormat PrintAsCharLiteralTo(Char c, ostream* os) {
- switch (static_cast<wchar_t>(c)) {
+ wchar_t w_c = static_cast<wchar_t>(c);
+ switch (w_c) {
case L'\0':
*os << "\\0";
break;
*os << "\\v";
break;
default:
- if (IsPrintableAscii(c)) {
+ if (IsPrintableAscii(w_c)) {
*os << static_cast<char>(c);
return kAsIs;
} else {
- *os << "\\x" + String::FormatHexInt(static_cast<UnsignedChar>(c));
+ ostream::fmtflags flags = os->flags();
+ *os << "\\x" << std::hex << std::uppercase
+ << static_cast<int>(static_cast<UnsignedChar>(c));
+ os->flags(flags);
return kHexEscape;
}
}
return;
*os << " (" << static_cast<int>(c);
- // For more convenience, we print c's code again in hexidecimal,
+ // For more convenience, we print c's code again in hexadecimal,
// unless c was already printed in the form '\x##' or the code is in
// [1, 9].
if (format == kHexEscape || (1 <= c && c <= 9)) {
// Do nothing.
} else {
- *os << ", 0x" << String::FormatHexInt(static_cast<UnsignedChar>(c));
+ *os << ", 0x" << String::FormatHexInt(static_cast<int>(c));
}
*os << ")";
}
template <typename CharType>
GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
-static void PrintCharsAsStringTo(
+static CharFormat PrintCharsAsStringTo(
const CharType* begin, size_t len, ostream* os) {
const char* const kQuoteBegin = sizeof(CharType) == 1 ? "\"" : "L\"";
*os << kQuoteBegin;
bool is_previous_hex = false;
+ CharFormat print_format = kAsIs;
for (size_t index = 0; index < len; ++index) {
const CharType cur = begin[index];
if (is_previous_hex && IsXDigit(cur)) {
*os << "\" " << kQuoteBegin;
}
is_previous_hex = PrintAsStringLiteralTo(cur, os) == kHexEscape;
+ // Remember if any characters required hex escaping.
+ if (is_previous_hex) {
+ print_format = kHexEscape;
+ }
}
*os << "\"";
+ return print_format;
}
// Prints a (const) char/wchar_t array of 'len' elements, starting at address
template <typename CharType>
GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
static void UniversalPrintCharArray(
const CharType* begin, size_t len, ostream* os) {
// Prints the given C string to the ostream.
void PrintTo(const char* s, ostream* os) {
- if (s == NULL) {
+ if (s == nullptr) {
*os << "NULL";
} else {
*os << ImplicitCast_<const void*>(s) << " pointing to ";
#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
// Prints the given wide C string to the ostream.
void PrintTo(const wchar_t* s, ostream* os) {
- if (s == NULL) {
+ if (s == nullptr) {
*os << "NULL";
} else {
*os << ImplicitCast_<const void*>(s) << " pointing to ";
- PrintCharsAsStringTo(s, std::wcslen(s), os);
+ PrintCharsAsStringTo(s, wcslen(s), os);
}
}
#endif // wchar_t is native
-// Prints a ::string object.
-#if GTEST_HAS_GLOBAL_STRING
-void PrintStringTo(const ::string& s, ostream* os) {
- PrintCharsAsStringTo(s.data(), s.size(), os);
+namespace {
+
+bool ContainsUnprintableControlCodes(const char* str, size_t length) {
+ const unsigned char *s = reinterpret_cast<const unsigned char *>(str);
+
+ for (size_t i = 0; i < length; i++) {
+ unsigned char ch = *s++;
+ if (std::iscntrl(ch)) {
+ switch (ch) {
+ case '\t':
+ case '\n':
+ case '\r':
+ break;
+ default:
+ return true;
+ }
+ }
+ }
+ return false;
}
-#endif // GTEST_HAS_GLOBAL_STRING
-void PrintStringTo(const ::std::string& s, ostream* os) {
- PrintCharsAsStringTo(s.data(), s.size(), os);
+bool IsUTF8TrailByte(unsigned char t) { return 0x80 <= t && t<= 0xbf; }
+
+bool IsValidUTF8(const char* str, size_t length) {
+ const unsigned char *s = reinterpret_cast<const unsigned char *>(str);
+
+ for (size_t i = 0; i < length;) {
+ unsigned char lead = s[i++];
+
+ if (lead <= 0x7f) {
+ continue; // single-byte character (ASCII) 0..7F
+ }
+ if (lead < 0xc2) {
+ return false; // trail byte or non-shortest form
+ } else if (lead <= 0xdf && (i + 1) <= length && IsUTF8TrailByte(s[i])) {
+ ++i; // 2-byte character
+ } else if (0xe0 <= lead && lead <= 0xef && (i + 2) <= length &&
+ IsUTF8TrailByte(s[i]) &&
+ IsUTF8TrailByte(s[i + 1]) &&
+ // check for non-shortest form and surrogate
+ (lead != 0xe0 || s[i] >= 0xa0) &&
+ (lead != 0xed || s[i] < 0xa0)) {
+ i += 2; // 3-byte character
+ } else if (0xf0 <= lead && lead <= 0xf4 && (i + 3) <= length &&
+ IsUTF8TrailByte(s[i]) &&
+ IsUTF8TrailByte(s[i + 1]) &&
+ IsUTF8TrailByte(s[i + 2]) &&
+ // check for non-shortest form
+ (lead != 0xf0 || s[i] >= 0x90) &&
+ (lead != 0xf4 || s[i] < 0x90)) {
+ i += 3; // 4-byte character
+ } else {
+ return false;
+ }
+ }
+ return true;
}
-// Prints a ::wstring object.
-#if GTEST_HAS_GLOBAL_WSTRING
-void PrintWideStringTo(const ::wstring& s, ostream* os) {
- PrintCharsAsStringTo(s.data(), s.size(), os);
+void ConditionalPrintAsText(const char* str, size_t length, ostream* os) {
+ if (!ContainsUnprintableControlCodes(str, length) &&
+ IsValidUTF8(str, length)) {
+ *os << "\n As Text: \"" << str << "\"";
+ }
+}
+
+} // anonymous namespace
+
+void PrintStringTo(const ::std::string& s, ostream* os) {
+ if (PrintCharsAsStringTo(s.data(), s.size(), os) == kHexEscape) {
+ if (GTEST_FLAG(print_utf8)) {
+ ConditionalPrintAsText(s.data(), s.size(), os);
+ }
+ }
}
-#endif // GTEST_HAS_GLOBAL_WSTRING
#if GTEST_HAS_STD_WSTRING
void PrintWideStringTo(const ::std::wstring& s, ostream* os) {
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