phrocker commented on a change in pull request #486: MINIFICPP-736 - Add
timeout to log matching to fix unstable test cases
URL: https://github.com/apache/nifi-minifi-cpp/pull/486#discussion_r256934998
##########
File path: libminifi/test/TestBase.h
##########
@@ -90,14 +90,30 @@ class LogTestController {
setLevel(name, level);
}
- bool contains(const std::string &ending) {
- return contains(log_output, ending);
+ bool contains(const std::string &ending, std::chrono::seconds timeout =
std::chrono::seconds(1)) {
+ return contains(log_output, ending, timeout);
}
- bool contains(const std::ostringstream &stream, const std::string &ending) {
- std::string str = stream.str();
- logger_->log_info("Looking for %s in log output.", ending);
- return (ending.length() > 0 && str.find(ending) != std::string::npos);
+ bool contains(const std::ostringstream &stream, const std::string &ending,
std::chrono::seconds timeout = std::chrono::seconds(1) ) {
+ if (ending.length() == 0) {
+ return false;
+ }
+ auto start = std::chrono::system_clock::now();
+ bool found = false;
+ bool timed_out = false;
+ do {
+ std::string str = stream.str();
+ found = (str.find(ending) != std::string::npos);
+ auto now = std::chrono::system_clock::now();
+ timed_out = std::chrono::duration_cast<std::chrono::milliseconds>(now -
start) >
+
std::chrono::duration_cast<std::chrono::milliseconds>(timeout);
+ if(!found && !timed_out) {
+ std::this_thread::sleep_for(std::chrono::milliseconds(200));
+ }
+ } while (!found && !timed_out);
+
+ logger_->log_info("%s found %s in log output.", found ? "Successfully" :
"NOT", ending);
Review comment:
The not case wording can be slightly improved.
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