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Testlib: teach TAP test logger to support new QCOMPARE_* operators

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The TAP test logger will now correctly print comparison types such
as QCOMPARE_NE or QCOMPARE_LT, and also provide a proper expected/wanted
value (by adding proper arithmetical operators in front of the value).
Sample output:
  type: QCOMPARE_GE
  message: Left value is expected to be greater than or equal to right value, but is not
  wanted: >= 1 (rhs)
  found: 0 (lhs)
  expected: >= 1 (rhs)
  actual: 0 (lhs)
  at: tst_ExtendedCompare::compareUnregistereEnum() (tst_extendedcompare.cpp:232)
  file: tst_extendedcompare.cpp
  line: 232

As a drive-by: make some variables const.

Task-number: QTBUG-98873
Change-Id: Idb54eaabcb937b42d3fc844f30041aab82d73f69
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This commit is contained in:
Ivan Solovev 2022-05-30 12:07:17 +02:00
parent 3dcf1779be
commit 9327d1aaf7
1 changed files with 69 additions and 12 deletions
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81
src/testlib/qtaptestlogger.cpp
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@ -281,25 +281,53 @@ void QTapTestLogger::addIncident(IncidentTypes type, const char *description,
const char *indent = isExpectedFail ? YAML_INDENT YAML_INDENT YAML_INDENT : YAML_INDENT;
if (!ok) {
#if QT_CONFIG(regularexpression)
enum class OperationType {
Unknown,
Compare, /* Plain old QCOMPARE */
Verify, /* QVERIFY */
CompareOp, /* QCOMPARE_OP */
};
// This is fragile, but unfortunately testlib doesn't plumb
// the expected and actual values to the loggers (yet).
static QRegularExpression verifyRegex(u"^'(?<actualexpression>.*)' returned "
"(?<actual>\\w+).+\\((?<message>.*)\\)$"_s);
static const QRegularExpression verifyRegex(
u"^'(?<actualexpression>.*)' returned "
"(?<actual>\\w+).+\\((?<message>.*)\\)$"_s);
static QRegularExpression compareRegex(
static const QRegularExpression compareRegex(
u"^(?<message>.*)\n"
"\\s*Actual\\s+\\((?<actualexpression>.*)\\)\\s*: (?<actual>.*)\n"
"\\s*Expected\\s+\\((?<expectedexpresssion>.*)\\)\\s*: "
"(?<expected>.*)$"_s);
QString descriptionString = QString::fromUtf8(description);
QRegularExpressionMatch match = verifyRegex.match(descriptionString);
const bool isVerify = match.hasMatch();
if (!isVerify)
match = compareRegex.match(descriptionString);
static const QRegularExpression compareOpRegex(
u"^(?<message>.*)\n"
"\\s*Left\\s+\\((?<actualexpression>.*)\\)\\s*: (?<actual>.*)\n"
"\\s*Right\\s+\\((?<expectedexpresssion>.*)\\)\\s*: "
"(?<expected>.*)$"_s);
if (match.hasMatch()) {
const QString descriptionString = QString::fromUtf8(description);
QRegularExpressionMatch match = verifyRegex.match(descriptionString);
OperationType opType = OperationType::Unknown;
if (match.hasMatch())
opType = OperationType::Verify;
if (opType == OperationType::Unknown) {
match = compareRegex.match(descriptionString);
if (match.hasMatch())
opType = OperationType::Compare;
}
if (opType == OperationType::Unknown) {
match = compareOpRegex.match(descriptionString);
if (match.hasMatch())
opType = OperationType::CompareOp;
}
if (opType != OperationType::Unknown) {
QString message = match.captured(u"message");
QLatin1StringView comparisonType;
QString expected;
QString actual;
const auto parenthesize = [&match](QLatin1StringView key) -> QString {
@ -307,16 +335,45 @@ void QTapTestLogger::addIncident(IncidentTypes type, const char *description,
};
const QString actualExpression = parenthesize("actualexpression"_L1);
if (isVerify) {
if (opType == OperationType::Verify) {
comparisonType = "QVERIFY"_L1;
actual = match.captured(u"actual").toLower() % actualExpression;
expected = (actual.startsWith("true "_L1) ? "false"_L1 : "true"_L1)
% actualExpression;
if (message.isEmpty())
message = u"Verification failed"_s;
} else {
} else if (opType == OperationType::Compare) {
comparisonType = "QCOMPARE"_L1;
expected = match.captured(u"expected")
% parenthesize("expectedexpresssion"_L1);
actual = match.captured(u"actual") % actualExpression;
} else {
struct ComparisonInfo {
const char *comparisonType;
const char *comparisonStringOp;
};
// get a proper comparison type based on the error message
const auto info = [](const QString &err) -> ComparisonInfo {
if (err.contains("different"_L1))
return { "QCOMPARE_NE", "!= " };
else if (err.contains("less than or equal to"_L1))
return { "QCOMPARE_LE", "<= " };
else if (err.contains("greater than or equal to"_L1))
return { "QCOMPARE_GE", ">= " };
else if (err.contains("less than"_L1))
return { "QCOMPARE_LT", "< " };
else if (err.contains("greater than"_L1))
return { "QCOMPARE_GT", "> " };
else if (err.contains("to be equal to"_L1))
return { "QCOMPARE_EQ", "== " };
else
return { "Unknown", "" };
}(message);
comparisonType = QLatin1StringView(info.comparisonType);
expected = QLatin1StringView(info.comparisonStringOp)
% match.captured(u"expected")
% parenthesize("expectedexpresssion"_L1);
actual = match.captured(u"actual") % actualExpression;
}
QTestCharBuffer diagnosticsYamlish;
@ -329,7 +386,7 @@ void QTapTestLogger::addIncident(IncidentTypes type, const char *description,
"%sfound: %s\n"
"%sexpected: %s\n"
"%sactual: %s\n",
indent, isVerify ? "QVERIFY" : "QCOMPARE",
indent, comparisonType.latin1(),
indent, qPrintable(message),
indent, qPrintable(expected), indent, qPrintable(actual),
indent, qPrintable(expected), indent, qPrintable(actual)