Dont work with NULL chains

diff --git a/test/test_icu.c b/test/test_icu.c
index 2ad005c..8be8869 100644 (file)
--- a/test/test_icu.c
+++ b/test/test_icu.c
@@ -450,6 +450,8 @@ static void check_icu_chain(void)
 
     xmlFreeDoc(doc);
     YAZ_CHECK(chain);
+    if (!chain)
+        return;
 
     YAZ_CHECK(icu_chain_assign_cstr(chain, en_str, &status));
 
@@ -507,6 +509,8 @@ static void check_bug_1140(void)
 
     xmlFreeDoc(doc);
     YAZ_CHECK(chain);
+    if (!chain)
+        return;
     
     YAZ_CHECK(icu_chain_assign_cstr(
                   chain,  "O Romeo, Romeo! wherefore art thou\t Romeo?",
@@ -773,6 +777,8 @@ static void check_icu_iter2(void)
 
     xmlFreeDoc(doc);
     YAZ_CHECK(chain);
+    if (!chain)
+        return;
     
     YAZ_CHECK(test_iter(chain, "Adobe Acrobat Reader, 1991-1999.",
                         "[adobe][acrobat][reader][1991][][1999][]"));