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QTest: Print hex instead of octal for QByteArray QCOMPARE failures

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Change-Id: Ia0aac2f09e9245339951ffff13c65b2234d01ad0
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This commit is contained in:
Thiago Macieira 2015-02-25 20:55:34 -08:00
parent 7acc7a8eb3
commit 7858838293
1 changed files with 25 additions and 6 deletions
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31
src/testlib/qtestcase.cpp
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@ -88,6 +88,7 @@
QT_BEGIN_NAMESPACE
using QtMiscUtils::toHexUpper;
using QtMiscUtils::fromHex;
/*!
\namespace QTest
@ -2184,7 +2185,7 @@ char *toHexRepresentation(const char *ba, int length)
/*!
\internal
Returns the same QByteArray but with only the ASCII characters still shown;
everything else is replaced with \c {\OOO}.
everything else is replaced with \c {\xHH}.
*/
char *toPrettyCString(const char *p, int length)
{
@ -2193,14 +2194,30 @@ char *toPrettyCString(const char *p, int length)
const char *end = p + length;
char *dst = buffer.data();
bool lastWasHexEscape = false;
*dst++ = '"';
for ( ; p != end; ++p) {
// we can add:
// 1 byte: a single character
// 2 bytes: a simple escape sequence (\n)
// 3 bytes: "" and a character
// 4 bytes: an hex escape sequence (\xHH)
if (dst - buffer.data() > 246) {
// plus the the quote, the three dots and NUL, it's 251, 252 or 255
// plus the the quote, the three dots and NUL, it's 255 in the worst case
trimmed = true;
break;
}
// check if we need to insert "" to break an hex escape sequence
if (Q_UNLIKELY(lastWasHexEscape)) {
if (fromHex(*p) != -1) {
// yes, insert it
*dst++ = '"';
*dst++ = '"';
}
lastWasHexEscape = false;
}
if (*p < 0x7f && *p >= 0x20 && *p != '\\' && *p != '"') {
*dst++ = *p;
continue;
@ -2230,10 +2247,12 @@ char *toPrettyCString(const char *p, int length)
*dst++ = 't';
break;
default:
// write as octal
*dst++ = '0' + ((uchar(*p) >> 6) & 7);
*dst++ = '0' + ((uchar(*p) >> 3) & 7);
*dst++ = '0' + ((uchar(*p)) & 7);
// print as hex escape
*dst++ = 'x';
*dst++ = toHexUpper(uchar(*p) >> 4);
*dst++ = toHexUpper(uchar(*p));
lastWasHexEscape = true;
break;
}
}