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Is there any semantic difference between writing
assertThat(object1, is(equalTo(object2)));
and writing
assertThat(object1, equalTo(object2)));
? If not, I would prefer the first version, because it reads better. Are there any other considerations here?
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Can anybody explain (or suggest a site or paper) the exact difference between triggers, assertions and checks, and also describe where I should use them?
EDIT: I mean in database, not in any other system or language.
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I do some checking of arguments in my classes in php using exception-throwing functions. I have functions that do a basic check ( ===, in_array etc ) and throw an exception on false. So I can do assertNumeric($argument, "\$argument is not numeric."); instead of
if ( ! is_numeric($argument) ) {
…
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Just like the question asks, is there a need to add Debug.Assert into your code if you are writing unit tests (which has its own assertions)? I could see that this might make the code more obvious without having to go into the tests, however it just seems that you might end up with duplicated asserts…
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The main reason I don't like Debug.Assert is the fact that these assertions are disabled in Release. I know that there's a performance reason for that, but at least in my situation I believe the gains would outweigh the cost. (By the way, I'm guessing this is the situation in most cases). And yes…
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