Add fuzzer for href setter and getter

[CarlosEduR]

In order to improve the line coverage for fuzz testing, add fuzzer for set_href and get_href

[anonrig]

cc @lemire i have bad news and good news

[lemire]

@anonrig

Indeed, the fuzzer found a bug, here it is...

https://github.com/ada-url/ada/pull/659

It is easy to narrow it down, just follow this recipe:

https://gist.github.com/lemire/f501b3b2bb8c33673de4f0a0674a6112

Takes a minute!!!

Fuzzers are great.

[lemire]

See https://github.com/ada-url/ada/issues/662

[lemire]

I expect that I have a fix for the bug in question at https://github.com/ada-url/ada/pull/659

[lemire]

@CarlosEduR Please rebase. I have merged a bug fix.

[CarlosEduR]

thanks @lemire! I was initially thinking it was something with the .to_string(), but now I see it was with the .set_pathname().

[CarlosEduR]

See #662

@lemire about this comparative fuzzer, are you thinking about comparing the results of the get_href between the ada::url and the ada::url_aggregator in the fuzzer?

[lemire]

I am!!!!!!!!!

[CarlosEduR]

I am!!!!!!!!!

@lemire assertion added!