2 files changed, 9 insertions, 2 deletions

diff --git a/tests/setup.sh b/tests/setup.sh
index 95acb54..30f90d5 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -115,3 +115,3 @@ run_test()
         else
-                ((test_failed++))
+                test_failed=$(expr $test_failed + 1)
                 printf " %2d) %-60s [failed]\n" $test_count "$desc"
diff --git a/tests/t0010-validate-html.sh b/tests/t0010-validate-html.sh
index 94aa52b..3fe4800 100755
--- a/tests/t0010-validate-html.sh
+++ b/tests/t0010-validate-html.sh
@@ -11,3 +11,3 @@ test_url()
         sed -ie "1,4d" trash/tidy-$test_count || return
-        tidy $tidy_opt trash/tidy-$test_count
+        "$tidy" $tidy_opt trash/tidy-$test_count
         rc=$?
@@ -25,2 +25,9 @@ prepare_tests 'Validate html with tidy'
 
+tidy=`which tidy`
+test -n "$tidy" || {
+        echo "Skipping tests: tidy not found"
+        tests_done
+        exit
+}
+
 run_test 'index page' 'test_url ""'