- Added further coverage tests for Base64

diff --git a/tests/suites/test_suite_base64.function b/tests/suites/test_suite_base64.function
index 6278ac2..9c61ef8 100644
--- a/tests/suites/test_suite_base64.function
+++ b/tests/suites/test_suite_base64.function
@@ -3,23 +3,26 @@
 END_HEADER
 
 BEGIN_CASE
-base64_encode:src_string:dst_string
+base64_encode:src_string:dst_string:dst_buf_size:result
 {
     unsigned char src_str[1000];
     unsigned char dst_str[1000];
-    int len = 1000;
+    int len = {dst_buf_size};
 
     memset(src_str, 0x00, 1000);
     memset(dst_str, 0x00, 1000);
 
     strcpy( (char *) src_str, {src_string} );
-    TEST_ASSERT( base64_encode( dst_str, &len, src_str, strlen( (char *) src_str ) ) == 0 );
-    TEST_ASSERT( strcmp( (char *) dst_str, {dst_string} ) == 0 );
+    TEST_ASSERT( base64_encode( dst_str, &len, src_str, strlen( (char *) src_str ) ) == {result} );
+    if( {result} == 0 )
+    {
+        TEST_ASSERT( strcmp( (char *) dst_str, {dst_string} ) == 0 );
+    }
 }
 END_CASE
 
 BEGIN_CASE
-base64_decode:src_string:dst_string
+base64_decode:src_string:dst_string:result
 {
     unsigned char src_str[1000];
     unsigned char dst_str[1000];
@@ -30,8 +33,11 @@
     memset(dst_str, 0x00, 1000);
     
     strcpy( (char *) src_str, {src_string} );
-    TEST_ASSERT( res = base64_decode( dst_str, &len, src_str, strlen( (char *) src_str ) ) == 0 );
-    TEST_ASSERT( strcmp( (char *) dst_str, {dst_string} ) == 0 );
+    TEST_ASSERT( res = base64_decode( dst_str, &len, src_str, strlen( (char *) src_str ) ) == {result} );
+    if( {result} == 0 )
+    {
+        TEST_ASSERT( strcmp( (char *) dst_str, {dst_string} ) == 0 );
+    }
 }
 END_CASE