test_cmp exp act
'
+test_expect_success 'non-fast-forward push fails' '
+ cd "$ROOT_PATH"/test_repo_clone &&
+ git checkout master &&
+ echo "changed" > path2 &&
+ git commit -a -m path2 --amend &&
+
+ HEAD=$(git rev-parse --verify HEAD) &&
+ !(git push -v origin >output 2>&1) &&
+ (cd "$HTTPD_DOCUMENT_ROOT_PATH"/test_repo.git &&
+ test $HEAD != $(git rev-parse --verify HEAD))
+'
+
+test_expect_success 'non-fast-forward push show ref status' '
+ grep "^ ! \[rejected\][ ]*master -> master (non-fast-forward)$" output
+'
+
+test_expect_success 'non-fast-forward push shows help message' '
+ grep \
+"To prevent you from losing history, non-fast-forward updates were rejected
+Merge the remote changes before pushing again. See the '"'non-fast-forward'"'
+section of '"'git push --help'"' for details." output
+'
+
+test_expect_success 'push fails for non-fast-forward refs unmatched by remote helper' '
+ # create a dissimilarly-named remote ref so that git is unable to match the
+ # two refs (viz. local, remote) unless an explicit refspec is provided.
+ git push origin master:retsam
+
+ echo "change changed" > path2 &&
+ git commit -a -m path2 --amend &&
+
+ # push master too; this ensures there is at least one '"'push'"' command to
+ # the remote helper and triggers interaction with the helper.
+ !(git push -v origin +master master:retsam >output 2>&1) &&
+
+ grep "^ + [a-f0-9]*\.\.\.[a-f0-9]* *master -> master (forced update)$" output &&
+ grep "^ ! \[rejected\] *master -> retsam (non-fast-forward)$" output &&
+
+ grep \
+"To prevent you from losing history, non-fast-forward updates were rejected
+Merge the remote changes before pushing again. See the '"'non-fast-forward'"'
+section of '"'git push --help'"' for details." output
+'
+
stop_httpd
test_done