utf8proc

commit 63f31c908ef7656415f73d6c178f08181239f74c
parent 39dbf507d72994939a8bee2b706e26440f9bc60c
Author: Randy <randy408@protonmail.com>
Date:   Thu, 26 May 2022 14:58:54 +0200

Improve fuzzer code coverage (#239)

* fuzz: test grapheme break functions

* fuzz: cover character lumping
Diffstat:
M
test/fuzzer.c
 | 
11
++++++++++-

1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/test/fuzzer.c b/test/fuzzer.c
@@ -11,7 +11,7 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
     if(data[size-1] != '\0') return 0;
 
     const uint8_t* ptr = data;
-    utf8proc_int32_t c = 0;
+    utf8proc_int32_t c = 0, c_prev = 0, state = 0;
     utf8proc_option_t options;
     utf8proc_ssize_t ret, bytes = 0;
     size_t len = strlen((const char*)data);
@@ -34,6 +34,11 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
         utf8proc_category(c);
         utf8proc_category_string(c);
         utf8proc_codepoint_valid(c);
+        
+        utf8proc_grapheme_break(c_prev, c);
+        utf8proc_grapheme_break_stateful(c_prev, c, &state);
+        
+        c_prev = c;
     }
     
     utf8proc_int32_t *copy = size >= 4 ? NULL : malloc(size);
@@ -58,6 +63,10 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
         memcpy(copy, data, size);
         utf8proc_normalize_utf32(copy, size, options);
 
+        options = UTF8PROC_LUMP;
+        memcpy(copy, data, size);
+        utf8proc_normalize_utf32(copy, size, options);
+
         options = 0;
         memcpy(copy, data, size);
         utf8proc_normalize_utf32(copy, size, options);