On Friday, 25 April 2014 at 08:52:18 UTC, Atila Neves wrote:
On Friday, 25 April 2014 at 08:45:20 UTC, Atila Neves wrote:
On Thursday, 24 April 2014 at 18:53:22 UTC, Jacob Carlborg
wrote:
On 2014-04-23 15:24, Atila Neves wrote:
Like testing with Cucumber? Wish you could call native D
code with it?
Now you can!
http://code.dlang.org/packages/unencumbered
https://github.com/atilaneves/unencumbered
I especially like registering functions that take the
parameters with
the types they need from the regexp captures, as well as the
compile-time failures that come from that if done
incorrectly.
Now I just need to use in "real life".
BTW, why is the description passed as a template argument to
the Cucumber keywords. @Given!("foo") instead of
@Given("foo")?
Ehm... because until now I didn't know that @Given("foo") was
possible. In my head I was doing compile-time stuff so
everything had to be compile-time, if that makes any sense.
After I read the above I wasn't even sure how @Given("foo")
would work so I wrote some code and now know that all I need
is a struct with a regular string field. I think the
documenation on http://dlang.org/attribute.html is severely
lacking.
I think I have some refactoring to do now. Thanks for pointing
this out!
Atila
Hmm. So for the string argument is fine, unfortunately I also
need to know the line number of the step definition, and that
doesn't work:
struct Given {
this(string s, ulong l = __LINE__) {
this.s = s;
this.l = l;
}
string s;
ulong l;
}
@Given("foobar")
auto func() pure nothrow @safe {
}
void main() {
foreach(attr; __traits(getAttributes, func)) {
pragma(msg, "s is ", __traits(getMember, attr, "l"));
}
}
I get:
s is attr_str.d(21): Error: variable attr cannot be read at
compile time
attr_str.d(21): while evaluating pragma(msg,
__traits(getMember, attr, "l"))
struct Given {
this(ulong l = __LINE__)(string s) {
this.s = s;
this.l = l;
}
string s;
ulong l;
}
@Given("foobar")
auto func() pure nothrow @safe {
}
void main() {
pragma(msg, "s is ", getGivenL!func);
}
pure ulong getGivenL(alias symbol)() {
foreach(attr; __traits(getAttributes, func)) {
static if (is(typeof(attr) == Given)) {
return attr.l;
}
}
assert(0);
}
Basically move the "checking" of UDA's to specialist functions
that are reusable.
Also when using things like __LINE__ keep them to template args,
as they are inferred to the initiation if possible.
