t7800-difftool: Set a bogus tool for use by tests

diff --git a/t/t0050-filesystem.sh b/t/t0050-filesystem.sh
index a449580c8a2e41c665e1f29c56877e271fd17fef..89282ccf7a1a73d4b5ee085c4236b1204dc502c8 100755 (executable)
--- a/t/t0050-filesystem.sh
+++ b/t/t0050-filesystem.sh
@@ -9,7 +9,8 @@ aumlcdiar=`printf '\x61\xcc\x88'`
 
 case_insensitive=
 unibad=
-test_expect_success 'see if we expect ' '
+no_symlinks=
+test_expect_success 'see what we expect' '
 
        test_case=test_expect_success
        test_unicode=test_expect_success
@@ -31,13 +32,21 @@ test_expect_success 'see if we expect ' '
                ;;
        *)      ;;
        esac &&
-       rm -fr junk
+       rm -fr junk &&
+       {
+               ln -s x y 2> /dev/null &&
+               test -h y 2> /dev/null ||
+               no_symlinks=1
+               rm -f y
+       }
 '
 
 test "$case_insensitive" &&
        say "will test on a case insensitive filesystem"
 test "$unibad" &&
        say "will test on a unicode corrupting filesystem"
+test "$no_symlinks" &&
+       say "will test on a filesystem lacking symbolic links"
 
 if test "$case_insensitive"
 then
@@ -53,6 +62,21 @@ test_expect_success "detection of case insensitive filesystem during repo init"
 '
 fi
 
+if test "$no_symlinks"
+then
+test_expect_success "detection of filesystem w/o symlink support during repo init" '
+
+       v=$(git config --bool core.symlinks) &&
+       test "$v" = false
+'
+else
+test_expect_success "detection of filesystem w/o symlink support during repo init" '
+
+       test_must_fail git config --bool core.symlinks ||
+       test "$(git config --bool core.symlinks)" = true
+'
+fi
+
 test_expect_success "setup case tests" '
 
        git config core.ignorecase true &&