better bootstrapping test

improve bootstrap test, including testing with alternate perls

diff --git a/xt/bootstrap.t b/xt/bootstrap.t
index d50b992..3df6e7e 100755 (executable)
--- a/xt/bootstrap.t
+++ b/xt/bootstrap.t
@@ -13,31 +13,31 @@ BEGIN {
   }
 }
 
-use Test::More;
-BEGIN {
-  if (!eval {require Capture::Tiny}) {
-    plan skip_all => 'Capture::Tiny required to test bootstrapping';
-  }
+sub check_version {
+  my ($perl, $module) = @_;
+  my $version = `$perl $0 --check-version $module`;
+  chomp $version;
+  length $version ? $version : undef;
 }
+
+use Test::More;
+use IPC::Open3;
 use File::Temp;
 use File::Spec;
 use local::lib ();
 
-delete $ENV{PERL5LIB};
-delete $ENV{PERL_LOCAL_LIB_ROOT};
-delete $ENV{PERL_MM_OPT};
-delete $ENV{PERL_MB_OPT};
-
-#my @ll_path = File::Spec->splitpath($INC{'local/lib.pm'});
-#my @ll_dir = File::Spec->splitdir($ll_path[1]);
-#my $ll_dir = File::Spec->catpath($ll_path[0], File::Spec->catdir(@ll_dir[0 .. $#_-1]), '');
-
-sub check_version {
-  my $module = shift;
-  my $version = `$^X $0 --check-version $module`;
-  chomp $version;
-  length $version ? $version : undef;
+my @perl;
+while (@ARGV) {
+  my $arg = shift @ARGV;
+  if ($arg =~ /^--perl(?:=(.*))$/) {
+    push @perl, ($1 || shift @ARGV);
+  }
+  else {
+    warn "unrecognized option: $arg\n";
+  }
 }
+@perl = $^X
+  unless @perl;
 
 my @modules = (
   [ 'ExtUtils::MakeMaker' => 6.74 ],
@@ -45,27 +45,47 @@ my @modules = (
   [ 'Module::Build'       => 0.36 ],
   [ 'CPAN'                => 1.82 ],
 );
-plan tests => 1+@modules;
 
-for my $module (@modules) {
-  my $version = check_version($module->[0]);
-  if ($version && $version >= $module->[1]) {
-    diag "Can't test bootstrap of $module->[0], version $version already meets requirement of $module->[1]";
+plan tests => @perl * (1+@modules);
+
+for my $perl (@perl) {
+  local @INC = @INC;
+  local $ENV{PERL5LIB};
+  local $ENV{PERL_LOCAL_LIB_ROOT};
+  local $ENV{PERL_MM_OPT};
+  local $ENV{PERL_MB_OPT};
+  delete $ENV{PERL5LIB};
+  delete $ENV{PERL_LOCAL_LIB_ROOT};
+  delete $ENV{PERL_MM_OPT};
+  delete $ENV{PERL_MB_OPT};
+
+  diag "testing bootstrap with $perl";
+  for my $module (@modules) {
+    my $version = check_version($perl, $module->[0]);
+    if ($version && $version >= $module->[1]) {
+      diag "Can't test bootstrap of $module->[0], version $version already meets requirement of $module->[1]";
+    }
   }
-}
 
-$ENV{HOME} = my $home = File::Temp::tempdir( CLEANUP => 1 );
-mkdir my $ll = File::Spec->catdir($home, 'perl5');
-local::lib->import($ll);
+  $ENV{HOME} = my $home = File::Temp::tempdir( CLEANUP => 1 );
+  my $ll = File::Spec->catdir($home, 'local-lib');
 
-my $result;
-my $out = Capture::Tiny::capture_merged {
-  $result = system($^X, 'Makefile.PL', '--bootstrap');
-};
-is $result, 0, 'Makefile.PL ran successfully'
-  or diag $out;
+  open my $null_in, '<', File::Spec->devnull;
+  my $pid = open3 $null_in, my $out, undef, $perl, 'Makefile.PL', '--bootstrap='.$ll;
+  while (my $line = <$out>) {
+    note $line;
+  }
+  waitpid $pid, 0;
+
+  is $?, 0, 'Makefile.PL ran successfully'
+    or diag $out;
+
+  local::lib->setup_env_hash_for($ll);
 
-for my $module (@modules) {
-  my $version = check_version($module->[0]);
-  cmp_ok $version, '>=', $module->[1], "bootstrap installed new enough $module->[0]";
+  for my $module (@modules) {
+    my $version = check_version($perl, $module->[0]);
+    cmp_ok $version, '>=', $module->[1], "bootstrap installed new enough $module->[0]"
+      or diag "PERL5LIB: $ENV{PERL5LIB}";
+
+  }
 }