test-lint: detect 'export FOO=bar'

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index a6bd99eaf51943a899aa5e5801479b0a84b6b692..2418528487624bf5497af71c9958a84e0a50328f 100755 (executable)
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -356,6 +356,13 @@ run_dir_diff_test 'difftool --dir-diff from subdirectory' '
        )
 '
 
+run_dir_diff_test 'difftool --dir-diff when worktree file is missing' '
+       test_when_finished git reset --hard &&
+       rm file2 &&
+       git difftool --dir-diff $symlinks --extcmd ls branch master >output &&
+       grep file2 output
+'
+
 write_script .git/CHECK_SYMLINKS <<\EOF
 for f in file file2 sub/sub
 do
@@ -378,6 +385,25 @@ test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstage
        test_cmp actual expect
 '
 
+write_script modify-right-file <<\EOF
+echo "new content" >"$2/file"
+EOF
+
+run_dir_diff_test 'difftool --dir-diff syncs worktree with unstaged change' '
+       test_when_finished git reset --hard &&
+       echo "orig content" >file &&
+       git difftool -d $symlinks --extcmd "$(pwd)/modify-right-file" branch &&
+       echo "new content" >expect &&
+       test_cmp expect file
+'
+
+run_dir_diff_test 'difftool --dir-diff syncs worktree without unstaged change' '
+       test_when_finished git reset --hard &&
+       git difftool -d $symlinks --extcmd "$(pwd)/modify-right-file" branch &&
+       echo "new content" >expect &&
+       test_cmp expect file
+'
+
 write_script modify-file <<\EOF
 echo "new content" >file
 EOF