Contrary to the conventional wisdom, asserts do have a runtime impact and may affect performance. The impact is likely to be small on average and zero in the median case, but it could be large when the stars align just right. Some of the mechanisms by which asserts slow things down at runtime are fairly …
Google test provides ASSERT_DEATH, EXPECT_DEATH and other related macros. This question and What are Google Test, Death Tests are each other’s answers. Does that make them duplicates, or not? 😉
Don’t use if(Dispatcher.CurrentDispatcher.Thread == Thread.CurrentThread) { // Do something } Dispatcher.CurrentDispatcher will, if the current thread do not have a dispatcher, create and return a new Dispatcher associated with the current thread. Instead do like this Dispatcher dispatcher = Dispatcher.FromThread(Thread.CurrentThread); if (dispatcher != null) { // We know the thread have a dispatcher that we …
Don’t use if(Dispatcher.CurrentDispatcher.Thread == Thread.CurrentThread) { // Do something } Dispatcher.CurrentDispatcher will, if the current thread do not have a dispatcher, create and return a new Dispatcher associated with the current thread. Instead do like this Dispatcher dispatcher = Dispatcher.FromThread(Thread.CurrentThread); if (dispatcher != null) { // We know the thread have a dispatcher that we …
A compile-time assert in pure standard C is possible, and a little bit of preprocessor trickery makes its usage look just as clean as the runtime usage of assert(). The key trick is to find a construct that can be evaluated at compile time and can cause an error for some values. One answer is …
assertTrue will fail if the second parameter evaluates to false (in other words, it ensures that the value is true). assertFalse does the opposite. assertTrue(“This will succeed.”, true); assertTrue(“This will fail!”, false); assertFalse(“This will succeed.”, false); assertFalse(“This will fail!”, true); As with many other things, the best way to become familiar with these methods is …
Use the suggestions provided at the link. Like fluent assertions or create your own assertion that wraps the Assert.True or Assert.False which were left with their message overloads. It was mentioned further down Quote You can provide messages to Assert.True and .False. If you simply cannot live without messages (and refuse to use a different …
To be specific: Go to Run->run configuration select java application in left nav pan. right click and select New. select Arguments tab Add -ea in VM arguments.
We use a macro to specifically indicate when something is unused: #define _unused(x) ((void)(x)) Then in your example, you’d have: int Result = Func(); assert( Result == 1 ); _unused( Result ); // make production build happy That way (a) the production build succeeds, and (b) it is obvious in the code that the variable …
First, the performance difference can be huge. In one project our asserts literally caused a 3x slowdown. But they helped us uncover some really pesky bugs. Which is exactly the point. Asserts are there to help you catch bugs. And because they are removed in release builds, we can afford to put a lot of …