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Re: Require packages to build without any configured DNS

On Thu, Sep 09, 2021 at 04:45:35AM +0000, Paul Wise wrote:
> That seems like a bug in the test cases, they shouldn't be testing the
> build time environment like that, since it could differ from the
> runtime environment.

These are usually not the tests of dnspython.

dnspython even has some support for using a different file instead of 
/etc/resolv.conf, the problem is that there are several other packages
in the callstack before dnspython in these failing tests.

Note that even if you would be mocking /etc/resolv.conf, you'd still 
have to add a nameserver IP address in the mocked /etc/resolv.conf
At that point you might as well install the mocked resolv.conf
as /etc/resolv.conf in build environments.

> There are nss_wrapper/resolv_wrapper for mocking
> away the build-time DNS resolving infrastructure.
> https://cwrap.org/nss_wrapper.html
> https://cwrap.org/resolv_wrapper.html

This is mocking the C library functionality,
which is not used by dnspython.

> bye,
> pabs


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