test "$diff" = "branch"
'
+# Ensures that a custom difftool.<tool>.cmd overrides built-ins
+test_expect_success PERL 'custom commands override built-ins' '
+ restore_test_defaults &&
+ git config difftool.defaults.cmd "cat \$REMOTE" &&
+
+ diff=$(git difftool --tool defaults --no-prompt branch) &&
+ test "$diff" = "master" &&
+
+ git config --unset difftool.defaults.cmd
+'
+
# Ensures that git-difftool ignores bogus --tool values
test_expect_success PERL 'difftool ignores bad --tool values' '
diff=$(git difftool --no-prompt --tool=bad-tool branch)
echo "$diff" | stdin_contains file
'
+write_script .git/CHECK_SYMLINKS <<\EOF
+for f in file file2 sub/sub
+do
+ echo "$f"
+ readlink "$2/$f"
+done >actual
+EOF
+
+test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
+ cat >expect <<-EOF &&
+ file
+ $(pwd)/file
+ file2
+ $(pwd)/file2
+ sub/sub
+ $(pwd)/sub/sub
+ EOF
+ git difftool --dir-diff --symlink \
+ --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
+ test_cmp actual expect
+'
+
test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
diff=$(git difftool --dir-diff --prompt --extcmd ls branch) &&
echo "$diff" | stdin_contains sub &&