diff --git a/CMakeLists.txt b/CMakeLists.txt
index f5406fb..12bfda1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,6 +63,11 @@ endif()
 
 if(UTF8PROC_ENABLE_TESTING)
   enable_testing()
+  file(MAKE_DIRECTORY data)
+  set(UNICODE_VERSION 13.0.0)
+  file(DOWNLOAD http://www.unicode.org/Public/${UNICODE_VERSION}/ucd/NormalizationTest.txt data/NormalizationTest.txt SHOW_PROGRESS)
+  file(DOWNLOAD http://www.unicode.org/Public/${UNICODE_VERSION}/ucd/auxiliary/GraphemeBreakTest.txt data/GraphemeBreakTestOrg.txt SHOW_PROGRESS)
+  execute_process(COMMAND bash -c "cat data/GraphemeBreakTestOrg.txt | /usr/bin/perl -pe 's,÷,/,g;s,×,+,g' && rm -f data/GraphemeBreakTestOrg.txt" OUTPUT_FILE data/GraphemeBreakTest.txt)
   add_executable(case test/tests.h test/tests.c utf8proc.h test/case.c)
   target_link_libraries(case utf8proc)
   add_executable(custom test/tests.h test/tests.c utf8proc.h test/custom.c)
@@ -92,6 +97,6 @@ if(UTF8PROC_ENABLE_TESTING)
   target_link_libraries(graphemetest utf8proc)
   add_executable(normtest test/tests.h test/tests.c utf8proc.h test/normtest.c)
   target_link_libraries(normtest utf8proc)
-  #add_test(utf8proc.testgraphemetest graphemetest data/GraphemeBreakTest.txt)
-  #add_test(utf8proc.testnormtest normtest data/NormalizationTest.txt)
+  add_test(utf8proc.testgraphemetest graphemetest data/GraphemeBreakTest.txt)
+  add_test(utf8proc.testnormtest normtest data/NormalizationTest.txt)
 endif()