ref namespaces: tests

Test pushing, pulling, and mirroring of repositories with ref
namespaces.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t5509-fetch-push-namespaces.sh b/t/t5509-fetch-push-namespaces.sh
new file mode 100755 (executable)
index 0000000..cc0b31f
--- /dev/null
+++ b/t/t5509-fetch-push-namespaces.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+
+test_description='fetch/push involving ref namespaces'
+. ./test-lib.sh
+
+test_expect_success setup '
+       test_tick &&
+       git init original &&
+       (
+               cd original &&
+               echo 0 >count &&
+               git add count &&
+               test_commit 0 &&
+               echo 1 >count &&
+               git add count &&
+               test_commit 1 &&
+               git remote add pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
+               git remote add pushee-unnamespaced ../pushee
+       ) &&
+       commit0=$(cd original && git rev-parse HEAD^) &&
+       commit1=$(cd original && git rev-parse HEAD) &&
+       git init pushee &&
+       git init puller
+'
+
+test_expect_success 'pushing into a repository using a ref namespace' '
+       (
+               cd original &&
+               git push pushee-namespaced master &&
+               git ls-remote pushee-namespaced >actual &&
+               printf "$commit1\trefs/heads/master\n" >expected &&
+               test_cmp expected actual &&
+               git push pushee-namespaced --tags &&
+               git ls-remote pushee-namespaced >actual &&
+               printf "$commit0\trefs/tags/0\n" >>expected &&
+               printf "$commit1\trefs/tags/1\n" >>expected &&
+               test_cmp expected actual &&
+               # Verify that the GIT_NAMESPACE environment variable works as well
+               GIT_NAMESPACE=namespace git ls-remote "ext::git %s ../pushee" >actual &&
+               test_cmp expected actual &&
+               # Verify that --namespace overrides GIT_NAMESPACE
+               GIT_NAMESPACE=garbage git ls-remote pushee-namespaced >actual &&
+               test_cmp expected actual &&
+               # Try a namespace with no content
+               git ls-remote "ext::git --namespace=garbage %s ../pushee" >actual &&
+               test_cmp /dev/null actual &&
+               git ls-remote pushee-unnamespaced >actual &&
+               sed -e "s|refs/|refs/namespaces/namespace/refs/|" expected >expected.unnamespaced &&
+               test_cmp expected.unnamespaced actual
+       )
+'
+
+test_expect_success 'pulling from a repository using a ref namespace' '
+       (
+               cd puller &&
+               git remote add -f pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
+               git for-each-ref refs/ >actual &&
+               printf "$commit1 commit\trefs/remotes/pushee-namespaced/master\n" >expected &&
+               printf "$commit0 commit\trefs/tags/0\n" >>expected &&
+               printf "$commit1 commit\trefs/tags/1\n" >>expected &&
+               test_cmp expected actual
+       )
+'
+
+# This test with clone --mirror checks for possible regressions in clone
+# or the machinery underneath it. It ensures that no future change
+# causes clone to ignore refs in refs/namespaces/*. In particular, it
+# protects against a regression caused by any future change to the refs
+# machinery that might cause it to ignore refs outside of refs/heads/*
+# or refs/tags/*. More generally, this test also checks the high-level
+# functionality of using clone --mirror to back up a set of repos hosted
+# in the namespaces of a single repo.
+test_expect_success 'mirroring a repository using a ref namespace' '
+       git clone --mirror pushee mirror &&
+       (
+               cd mirror &&
+               git for-each-ref refs/ >actual &&
+               printf "$commit1 commit\trefs/namespaces/namespace/refs/heads/master\n" >expected &&
+               printf "$commit0 commit\trefs/namespaces/namespace/refs/tags/0\n" >>expected &&
+               printf "$commit1 commit\trefs/namespaces/namespace/refs/tags/1\n" >>expected &&
+               test_cmp expected actual
+       )
+'
+
+test_done