Re: [RFC PATCH 0/2] contrib/credential/netrc Makefile & test improvements

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Thanks for looking into this and addressing these issues.

On Thu, Jun 7, 2018 at 1:20 AM Todd Zullinger <tmz@xxxxxxxxx> wrote:
>
> Hi,
>
> I noticed failures from the contrib/credential/netrc tests
> while building 2.18.0 release candidates.  I was surprised
> to see the tests being run when called with a simple 'make'
> command.
>
> The first patch in the series adds an empty 'all::' make
> target to match most of our other Makefiles and avoid the
> surprise of running tests by default.  (When the netrc
> helper was added to the fedora builds, it copied the same
> 'make -C contrib/credential/...' pattern from other
> credential helpers -- despite the lack of anything to
> build.)

I think this is a good idea.

> The actual test failures were initially due to my build
> environment lacking the perl autodie module, which was added
> in 786ef50a23 ("git-credential-netrc: accept gpg option",
> 2018-05-12).

I added 'use autodie;' without realizing it had external dependencies.
According to the documentation
http://perldoc.perl.org/autodie.html
it's a pragma since perl 5.10.1
Removing 'use autodie;' should be fine: it's not critical.

> After installing the autodie module, the failures were due
> to the build environment lacking a git install (specifically
> the perl Git module).  The tests needing a pre-installed
> perl Git seemed odd and worth fixing.

I mistakenly thought 'use lib (split(/:/, $ENV{GITPERLLIB}));' in
test.pl handled this.
Since it doesn't, and I was only following an example from
t/t9700/test.pl that doesn't fit, this line should be removed and it
might make more sense to set the environment from
t-git-credential-netrc.sh near '. ./test-lib.sh', which also sets the
environment.
Something like

diff --git a/contrib/credential/netrc/t-git-credential-netrc.sh
b/contrib/credential/netrc/t-git-credential-netrc.sh
index 58191a6..9e18611 100755
--- a/contrib/credential/netrc/t-git-credential-netrc.sh
+++ b/contrib/credential/netrc/t-git-credential-netrc.sh
@@ -23,5 +23,6 @@
        # The external test will outputs its own plan
        test_external_has_tap=1

+       export PERL5LIB="$GITPERLLIB"
        test_external \
     'git-credential-netrc' \

Your solution, however, is reasonable, and I don't know which is preferred.

> The second patch in the series aims to fix this.  I'm not
> sure if there's a better or more preferable way to fix this,
> which is one of the reasons for the RFC tag. (It's also why
> I added you to the Cc Ævar, as you're one of the
> knowledgeable perl folks here.)
>
> The other reason for the RFC tag is that I'm unsure of how
> to fix the last issue I found.  The tests exit cleanly even
> when there are failures, which seems undesirable.  I'm not
> familiar with the perl test_external framework to suggest a
> fix in patch form.  It might be a matter of adding something
> like this, from t/t9700/test.pl:
>
>     my $is_passing = eval { Test::More->is_passing };
>     exit($is_passing ? 0 : 1) unless $@ =~ /Can't locate object method/;
>
> ?  But that's a wild guess which I haven't tested.

Good idea.
It looks like you found an issue with t/t9700/test.pl, too.
When altered to fail, it first reports ok (then reports failed and
returns non-0).

not ok 46 - unquote simple quoted path
not ok 47 - unquote escape sequences
1..47
# test_external test Perl API was ok
# test_external_without_stderr test no stderr: Perl API failed: perl
/home/luism/project/git/t/t9700/test.pl:
$ echo $?
1

To make git-credential-netrc tests behave correctly, I ended up making
the changes below.
They might be okay, unless someone knows better.

diff --git a/contrib/credential/netrc/t-git-credential-netrc.sh
b/contrib/credential/netrc/t-git-credential-netrc.sh
index 58191a6..9e18611 100755
--- a/contrib/credential/netrc/t-git-credential-netrc.sh
+++ b/contrib/credential/netrc/t-git-credential-netrc.sh
@@ -23,9 +23,10 @@
        # The external test will outputs its own plan
        test_external_has_tap=1

+       export PERL5LIB="$GITPERLLIB"
        test_external \
     'git-credential-netrc' \
-    perl "$TEST_DIRECTORY"/../contrib/credential/netrc/test.pl
+    perl "$GIT_BUILD_DIR"/contrib/credential/netrc/test.pl

        test_done
 )
diff --git a/contrib/credential/netrc/test.pl b/contrib/credential/netrc/test.pl
index 1e10010..abc9081 100755
--- a/contrib/credential/netrc/test.pl
+++ b/contrib/credential/netrc/test.pl
@@ -1,6 +1,4 @@
 #!/usr/bin/perl
-use lib (split(/:/, $ENV{GITPERLLIB}));
-
 use warnings;
 use strict;
 use Test::More qw(no_plan);
@@ -12,7 +10,6 @@ BEGIN
        # t-git-credential-netrc.sh kicks off our testing, so we have to go
        # from there.
        Test::More->builder->current_test(1);
-       Test::More->builder->no_ending(1);
 }

 my @global_credential_args = @ARGV;
@@ -104,6 +101,9 @@ BEGIN

 ok(scalar keys %$cred == 2, 'Got keys decrypted by command option');

+my $is_passing = eval { Test::More->is_passing };
+exit($is_passing ? 0 : 1) unless $@ =~ /Can't locate object method/;
+
 sub run_credential
 {
        my $args = shift @_;




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