diff --git a/test/lib/test-base.h b/test/lib/test-base.h
index 5c79034..dd364e2 100644
--- a/test/lib/test-base.h
+++ b/test/lib/test-base.h
@@ -16,6 +16,8 @@
 #include <lib/base.h>
 #include <testing.h>
 
+#include <string.h>
+
 void testing_lib_base_word_safe_sub(void)
 {
   const struct TestCase
@@ -119,11 +121,14 @@ void testing_lib_base_bytes_to_hword(void)
                {{0, 0, 0, 0b10000000}, 1 << 31},
                {{0x89, 0xab, 0xcd, 0xef}, 0xefcdab89}};
 
+  const size_t n = size_byte_array_to_string(4);
+  char str[n];
   for (size_t i = 0; i < ARR_SIZE(tests); ++i)
   {
+    memset(str, 0, n);
     const hword_t got = convert_bytes_to_hword(tests[i].bytes);
-    INFO(__func__, "Testing(0x%X, 0x%X, 0x%X, 0x%X)\n", tests[i].bytes[0],
-         tests[i].bytes[1], tests[i].bytes[2], tests[i].bytes[3]);
+    byte_array_to_string(tests[i].bytes, 4, str);
+    INFO(__func__, "Testing%s\n", str);
     if (tests[i].expected != got)
     {
       FAIL(__func__, "[%lu] -> Expected 0x%x got 0x%x\n", i, tests[i].expected,
@@ -146,12 +151,13 @@ void testing_lib_base_bytes_to_word(void)
       {{0, 0, 0, 0, 0, 0, 0, 0b10000000}, 1LU << 63},
       {{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, 0xefcdab8967452301}};
 
+  const size_t n = size_byte_array_to_string(8);
+  char str[n];
   for (size_t i = 0; i < ARR_SIZE(tests); ++i)
   {
-    INFO(__func__, "Testing(0x%X, 0x%X, 0x%X, 0x%X, 0x%X, 0x%X, 0x%X, 0x%X)\n",
-         tests[i].bytes[0], tests[i].bytes[1], tests[i].bytes[2],
-         tests[i].bytes[3], tests[i].bytes[4], tests[i].bytes[5],
-         tests[i].bytes[6], tests[i].bytes[7]);
+    memset(str, 0, n);
+    byte_array_to_string(tests[i].bytes, 8, str);
+    INFO(__func__, "Testing%s\n", str);
     const word_t got = convert_bytes_to_word(tests[i].bytes);
     if (tests[i].expected != got)
     {
diff --git a/test/testing.h b/test/testing.h
index 4c177a1..568362a 100644
--- a/test/testing.h
+++ b/test/testing.h
@@ -15,8 +15,10 @@
 
 #include <assert.h>
 #include <lib/base.h>
+
 #include <stdbool.h>
 #include <stdio.h>
+#include <string.h>
 
 #define MESSAGE(FILE, COLOUR, NAME, FORMAT, ...) \
   fprintf(FILE, "\t[" COLOUR "%s" TERM_RESET "]: " FORMAT, NAME, __VA_ARGS__)
@@ -51,4 +53,29 @@ struct Test
   }                                                   \
   SUCCESS(#SUITE, "%s", "Finished test suite!\n")
 
+static size_t size_byte_array_to_string(const size_t n)
+{
+  return 3 + (4 * n) + (2 * (n - 1));
+}
+
+static void byte_array_to_string(const byte_t *bytes, size_t size_bytes,
+                                 char *str)
+{
+  str[0]   = '{';
+  size_t j = 1;
+  for (size_t i = 0; i < size_bytes; ++i)
+  {
+    ;
+    char buffer[7];
+    int k    = i == size_bytes - 1 ? 0 : 2;
+    size_t n = 2 + (bytes[i] < 10 ? 1 : 2) + k;
+
+    sprintf(buffer, "0x%X, ", bytes[i]);
+    memcpy(str + j, buffer, n);
+    j += n;
+  }
+  str[j]     = '}';
+  str[j + 1] = '\0';
+}
+
 #endif