hooks: Add function to check if a hook exists

diff --git a/t/t9800-git-p4-basic.sh b/t/t9800-git-p4-basic.sh
index b7ad716b09facbc068a23c48cdbfe68a87f52d4c..8c5979647ffceeb6614f0cdb58ae06170afac7c4 100755 (executable)
--- a/t/t9800-git-p4-basic.sh
+++ b/t/t9800-git-p4-basic.sh
@@ -143,7 +143,18 @@ test_expect_success 'exit when p4 fails to produce marshaled output' '
        ! test_i18ngrep Traceback errs
 '
 
-test_expect_success 'clone bare' '
+# Hide a file from p4d, make sure we catch its complaint.  This won't fail in
+# p4 changes, files, or describe; just in p4 print.  If P4CLIENT is unset, the
+# message will include "Librarian checkout".
+test_expect_success 'exit gracefully for p4 server errors' '
+       test_when_finished "mv \"$db\"/depot/file1,v,hidden \"$db\"/depot/file1,v" &&
+       mv "$db"/depot/file1,v "$db"/depot/file1,v,hidden &&
+       test_when_finished cleanup_git &&
+       test_expect_code 1 git p4 clone --dest="$git" //depot@1 >out 2>err &&
+       test_i18ngrep "Error from p4 print" err
+'
+
+test_expect_success 'clone --bare should make a bare repository' '
        rm -rf "$git" &&
        git p4 clone --dest="$git" --bare //depot &&
        test_when_finished cleanup_git &&
@@ -172,6 +183,18 @@ test_expect_success 'initial import time from top change time' '
        )
 '
 
+test_expect_success 'unresolvable host in P4PORT should display error' '
+       test_when_finished cleanup_git &&
+       git p4 clone --dest="$git" //depot &&
+       (
+               cd "$git" &&
+               P4PORT=nosuchhost:65537 &&
+               export P4PORT &&
+               test_expect_code 1 git p4 sync >out 2>err &&
+               grep "connect to nosuchhost" err
+       )
+'
+
 test_expect_success 'kill p4d' '
        kill_p4d
 '