Unit tests in D

[Michel Fortin]

On 2010-05-05 14:04:13 -0400, Walter Bright <newshound1 at digitalmars.com> said:

> bearophile wrote:
>> I have to use a syntax like this often enough inside
>> unittests:
>> 
>> static assert(!__traits(compiles, foo(10)));
> 
> But why? Just use:
> 
>     foo(10);

To put it more simply than bearophile:

	foo(10);
	// gives you an error when foo(10) does *not* compile

	static assert(!__traits(compiles, foo(10)));
	// gives you an error when foo(10) compiles with no error
	// (notice the negation operator "!")

It is sometime a good idea to assert that a template cannot be 
instantiated with bogus arguments.

-- 
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/