Add tests for default iso8601 timestamps

Signed-off-by: Norman Gehrsitz <[email protected]>

test/get.sh

@@ -3,6 +3,7 @@
 set -e
 
 source $(dirname $0)/helpers.sh
+source $(dirname $0)/common.sh
 
 it_can_get_from_url() {
   local repo=$(init_repo)
@@ -718,6 +719,23 @@ it_can_get_commit_message() {
     ( echo "Commit message does not match."; return 1 )
 }
 
+it_can_get_commit_timestamp() {
+  local repo=$(init_repo)
+  local commit_message='Time-is-relevant!'
+  local ref=$(make_commit $repo $commit_message)
+  local dest=$TMPDIR/destination
+
+  get_uri $repo $dest $1
+
+  pushd $dest
+  local expected_timestamp=$(git_metadata | jq -r '.[] | select(.name == "committer_date") | .value')
+  popd
+
+  test -e $dest/.git/commit_timestamp || ( echo ".git/commit_timestamp does not exist."; return 1 )
+  test "$(cat $dest/.git/commit_timestamp)" = "$expected_timestamp" || \
+    ( echo "Commit timestamp differs from expectation."; return 1 )
+}
+
 it_decrypts_git_crypted_files() {
   local repo=$(git_crypt_fixture_repo_path)
   local dest=$TMPDIR/destination
@@ -831,6 +849,7 @@ run it_can_get_signed_commit_via_tag
 run it_can_get_committer_email
 run it_can_get_returned_ref
 run it_can_get_commit_message
+run it_can_get_commit_timestamp
 run it_decrypts_git_crypted_files
 run it_clears_tags_with_clean_tags_param
 run it_retains_tags_by_default