add Chapter17

Chapter17/fsm/libs/etl/test/UnitTest++/TimeConstraint.cpp

@@ -0,0 +1,29 @@
+#include "TimeConstraint.h"
+#include "TestResults.h"
+#include "MemoryOutStream.h"
+#include "CurrentTest.h"
+
+namespace UnitTest {
+
+
+   TimeConstraint::TimeConstraint(int ms, TestDetails const& details, int lineNumber)
+      : m_details(details, lineNumber)
+      , m_maxMs(ms)
+   {
+      m_timer.Start();
+   }
+
+   TimeConstraint::~TimeConstraint()
+   {
+      double const totalTimeInMs = m_timer.GetTimeInMs();
+      if (totalTimeInMs > m_maxMs)
+      {
+         MemoryOutStream stream;
+         stream << "Time constraint failed. Expected to run test under " << m_maxMs <<
+            "ms but took " << totalTimeInMs << "ms.";
+
+         CurrentTest::Results()->OnTestFailure(m_details, stream.GetText());
+      }
+   }
+
+}