+my $expect = '69df7d565d49fbaaeb0a067910f03dc22cd52bd0';
+my $non_existent = 'ee5e32211bf62ab6531bdf39b84b6920d0b6775a';
+
+test_lei({tmpdir => "$tmpdir/blob"}, sub {
+ lei_ok('blob', '--mail', $patch2_oid, '-I', $ibx->{inboxdir},
+ \'--mail works for existing oid');
+ is($lei_out, $patch2->as_string, 'blob matches');
+ ok(!lei('blob', '--mail', '69df7d5', '-I', $ibx->{inboxdir}),
+ "--mail won't run solver");
+ like($lei_err, qr/\b69df7d5\b/, 'OID in error by git(1)');
+
+ lei_ok('blob', '69df7d5', '-I', $ibx->{inboxdir});
+ is(git_sha(1, \$lei_out)->hexdigest, $expect, 'blob contents output');
+ my $prev = $lei_out;
+ lei_ok(qw(blob --no-mail 69df7d5 -I), $ibx->{inboxdir});
+ is($lei_out, $prev, '--no-mail works');
+ ok(!lei(qw(blob -I), $ibx->{inboxdir}, $non_existent),
+ 'non-existent blob fails');
+ my $abbrev = substr($non_existent, 0, 7);
+ like($lei_err, qr/could not find $abbrev/, 'failed abbreviation noted');
+ SKIP: {
+ skip '/.git exists', 1 if -e '/.git';
+ lei_ok(qw(-C / blob 69df7d5 -I), $ibx->{inboxdir},
+ "--git-dir=$git_dir");
+ is($lei_out, $prev, '--git-dir works');
+
+ ok(!lei(qw(-C / blob --no-cwd 69df7d5 -I), $ibx->{inboxdir}),
+ '--no-cwd works');
+ like($lei_err, qr/no --git-dir to try/,
+ 'lack of --git-dir noted');
+
+ ok(!lei(qw(-C / blob -I), $ibx->{inboxdir}, $non_existent),
+ 'non-existent blob fails');
+ like($lei_err, qr/no --git-dir to try/,
+ 'lack of --git-dir noted');
+ }
+
+ # fallbacks
+ lei_ok('blob', $v1_0_0_tag, '-I', $ibx->{inboxdir});
+ lei_ok('blob', $v1_0_0_tag_short, '-I', $ibx->{inboxdir});
+});
+
+test_lei({tmpdir => "$tmpdir/rediff"}, sub {
+ lei_ok(qw(rediff -q -U9 t/solve/0001-simple-mod.patch));
+ like($lei_out, qr!^\Q+++\E b/TODO\n@@ -103,9 \+103,11 @@!sm,
+ 'got more context with -U9');
+ lei_ok(qw(rediff -q -U9 t/solve/bare.patch));
+ my $exp = <<'EOM';
+diff --git a/script/public-inbox-extindex b/script/public-inbox-extindex
+old mode 100644
+new mode 100755
+index 15ac20eb..771486c4
+--- a/script/public-inbox-extindex
++++ b/script/public-inbox-extindex
+@@ -1,13 +1,12 @@
+ #!perl -w
+EOM
+ like($lei_out, qr/\Q$exp\E/,
+ 'preserve mode, regen header + context from -U0 patch');
+ my $e = { GIT_DIR => "$ENV{HOME}/.local/share/lei/store/ALL.git" };
+ my @x = xqx([qw(git cat-file --batch-all-objects --batch-check)], $e);
+ is_deeply(\@x, [], 'no objects stored') or diag explain(\@x);
+});
+
+test_lei({tmpdir => "$tmpdir/index-eml-only"}, sub {
+ lei_ok(qw(index), $md);
+ lei_ok(qw(blob 69df7d5)); # hits LeiSearch->smsg_eml -> lms->local_blob
+});