- Added test suite for XTEA

diff --git a/tests/suites/test_suite_xtea.function b/tests/suites/test_suite_xtea.function
new file mode 100644
index 0000000..e75d0a7
--- /dev/null
+++ b/tests/suites/test_suite_xtea.function
@@ -0,0 +1,60 @@
+BEGIN_HEADER
+#include <polarssl/xtea.h>
+END_HEADER
+
+BEGIN_CASE
+xtea_encrypt_ecb:hex_key_string:hex_src_string:hex_dst_string
+{
+    unsigned char key_str[100];
+    unsigned char src_str[100];
+    unsigned char dst_str[100];
+    unsigned char output[100];
+    xtea_context ctx;
+
+    memset(key_str, 0x00, 100);
+    memset(src_str, 0x00, 100);
+    memset(dst_str, 0x00, 100);
+    memset(output, 0x00, 100);
+
+    unhexify( key_str, {hex_key_string} );
+    unhexify( src_str, {hex_src_string} );
+
+    xtea_setup( &ctx, key_str );
+    xtea_crypt_ecb( &ctx, XTEA_ENCRYPT, src_str, output );
+    hexify( dst_str, output, 8 );
+
+    TEST_ASSERT( strcmp( (char *) dst_str, {hex_dst_string} ) == 0 );
+}
+END_CASE
+
+BEGIN_CASE
+xtea_decrypt_ecb:hex_key_string:hex_src_string:hex_dst_string
+{
+    unsigned char key_str[100];
+    unsigned char src_str[100];
+    unsigned char dst_str[100];
+    unsigned char output[100];
+    xtea_context ctx;
+
+    memset(key_str, 0x00, 100);
+    memset(src_str, 0x00, 100);
+    memset(dst_str, 0x00, 100);
+    memset(output, 0x00, 100);
+
+    unhexify( key_str, {hex_key_string} );
+    unhexify( src_str, {hex_src_string} );
+
+    xtea_setup( &ctx, key_str );
+    xtea_crypt_ecb( &ctx, XTEA_DECRYPT, src_str, output );
+    hexify( dst_str, output, 8 );
+
+    TEST_ASSERT( strcmp( (char *) dst_str, {hex_dst_string} ) == 0 );
+}
+END_CASE
+
+BEGIN_CASE
+xtea_selftest:
+{
+    TEST_ASSERT( xtea_self_test( 0 ) == 0 );
+}
+END_CASE