Improve docknot dist test

Use Capture::Tiny and File::Copy::Recursive to make the docknot
dist test a bit simpler and easier to maintain.

4 files changed, 42 insertions, 43 deletions

diff --git a/t/data/dist/docs/metadata/blurb b/t/data/dist/docs/metadata/blurb
new file mode 100644
index 0000000..1d115d1
--- /dev/null
+++ b/t/data/dist/docs/metadata/blurb
@@ -0,0 +1 @@
+Test package.
diff --git a/t/data/dist/docs/metadata/description b/t/data/dist/docs/metadata/description
new file mode 100644
index 0000000..1d115d1
--- /dev/null
+++ b/t/data/dist/docs/metadata/description
@@ -0,0 +1 @@
+Test package.
diff --git a/t/data/dist/docs/metadata/requirements b/t/data/dist/docs/metadata/requirements
new file mode 100644
index 0000000..1d115d1
--- /dev/null
+++ b/t/data/dist/docs/metadata/requirements
@@ -0,0 +1 @@
+Test package.
diff --git a/t/dist/basic.t b/t/dist/basic.t
index 3bd119f..663680e 100755
--- a/t/dist/basic.t
+++ b/t/dist/basic.t
@@ -10,8 +10,13 @@ use 5.024;
 use autodie;
 use warnings;
 
+use lib 't/lib';
+
+use Test::RRA qw(use_prereq);
+
+use Capture::Tiny qw(capture_stdout);
 use Cwd qw(getcwd);
-use File::Copy;
+use File::Copy::Recursive qw(dircopy);
 use File::Spec;
 use File::Temp;
 use IPC::Run qw(run);
@@ -23,60 +28,51 @@ use Test::More;
 my $cwd      = getcwd() or die "$0: cannot get working directory: $!\n";
 my $dataroot = File::Spec->catfile($cwd, 't', 'data', 'dist');
 
-# Set up a temporary directory, copy all files from the data directory, and
-# commit them.  We have to rename the test while we copy it to avoid having it
-# picked up by the main package test suite.
-my $dir = File::Temp->newdir();
-chdir($dir);
-systemx(qw(git init source));
-chdir('source');
-for my $file (qw(Build.PL MANIFEST MANIFEST.SKIP)) {
-    copy(File::Spec->catfile($dataroot, $file), File::Spec->curdir())
-      or die "$0: cannot copy $file: $!\n";
-}
-mkdir('docs');
-mkdir(File::Spec->catfile('docs', 'metadata'));
-my $metadata_path
-  = File::Spec->catfile($dataroot, 'docs', 'metadata', 'metadata.json');
-copy($metadata_path, File::Spec->catfile('docs', 'metadata'))
-  or die "$0: cannot copy docs/metadata/metadata.json: $!\n";
-for my $file (qw(blurb description requirements)) {
-    open(my $fh, '>', File::Spec->catfile('docs', 'metadata', $file));
-    close($fh);
+# Set up a temporary directory.
+my $dir       = File::Temp->newdir();
+my $sourcedir = File::Spec->catfile($dir, 'source');
+my $distdir   = File::Spec->catfile($dir, 'dist');
+
+# Check whether git is available and can be used to initialize a repository.
+eval { systemx('git', 'init', '-q', File::Spec->catfile($dir, 'source')) };
+if ($@) {
+    plan skip_all => 'git init failed (possibly no git binary)';
 }
-mkdir('lib');
-copy(File::Spec->catfile($dataroot, 'lib', 'Empty.pm'), 'lib')
-  or die "$0: cannot copy lib/Empty.pm: $!\n";
-mkdir('t');
-my $testdir = File::Spec->catfile('t', 'api');
-mkdir($testdir);
-my $test_path = File::Spec->catfile($dataroot, 't', 'api', 'empty.t.in');
-copy($test_path, File::Spec->catfile($testdir, 'empty.t'))
-  or die "$0: cannot copy t/api/empty.t: $!\n";
+
+# Copy all files from the data directory, and commit them.  We have to rename
+# the test while we copy it to avoid having it picked up by the main package
+# test suite.
+dircopy($dataroot, $sourcedir)
+  or die "$0: cannot copy $dataroot to $sourcedir: $!\n";
+my $testpath = File::Spec->catfile($sourcedir, 't', 'api', 'empty.t');
+rename($testpath . '.in', $testpath);
+chdir($sourcedir);
 systemx(qw(git add -A .));
-systemx(qw(git commit -m Initial));
+systemx(qw(git commit -q -m Initial));
 
-# Check whether we have all the necessary tools to set up the test.  This test
-# relies on the external git and tar utilities, which may not be available on
-# all systems.
-if (!run(['git', 'archive', 'HEAD'], q{|}, ['tar', 'tf', q{-}])) {
+# Check whether we have all the necessary tools to run the test.
+my $out;
+if (!run(['git', 'archive', 'HEAD'], q{|}, ['tar', 'tf', q{-}], \$out)) {
+    chdir($cwd);
     plan skip_all => 'git and tar not available';
 } else {
-    plan tests => 2;
+    plan tests => 3;
 }
 
 # Load the module.  Change back to the starting directory for this so that
 # coverage analysis works.
 chdir($cwd);
 require_ok('App::DocKnot::Dist');
-chdir(File::Spec->catfile($dir, 'source'));
 
-# Setup finished.  Now we can create a distribution tarball.
-my $distdir = File::Spec->catfile($dir, 'dist');
+# Setup finished.  Now we can create a distribution tarball.  Be careful to
+# change working directories before letting $dir go out of scope so that
+# cleanup works properly.
 mkdir($distdir);
-my $dist = App::DocKnot::Dist->new({ distdir => $distdir });
-$dist->make_distribution();
+chdir($sourcedir);
+eval {
+    my $dist = App::DocKnot::Dist->new({ distdir => $distdir });
+    capture_stdout { $dist->make_distribution() };
+};
 ok(-f File::Spec->catfile($distdir, 'Empty-1.00.tar.gz'), 'dist exists');
-
-# Change directories so that the temporary directory can be cleaned up.
 chdir($cwd);
+is($@, q{}, 'no errors');