diff --git a/test/hash/fasthash.cpp b/test/hash/fasthash.cpp
index 09624c91..11b8bd44 100644
--- a/test/hash/fasthash.cpp
+++ b/test/hash/fasthash.cpp
@@ -2,6 +2,7 @@
 #include "tap.hpp"
 
 #include <cstring>
+#include <inttypes.h>
 
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -26,15 +27,15 @@ main (void)
         uint32_t hash32;
         uint64_t seed64;
         uint64_t hash64;
-        std::vector<uint8_t> data;
+        const char *data;
     } TESTS[] = {
-        { 0x00000000, 0x00000000, 0x0000000000000000, 0x0000000000000000, ""_u8s },
-        { 0x00000001, 0xd30ac4de, 0x0000000000000001, 0x2127599bf4321e79, ""_u8s },
-        { 0xffffffff, 0xf5c7b4b0, 0xffffffffffffffff, 0x9b4792000001368f, ""_u8s },
-        { 0xf5c7b4b0, 0x228128b7, 0x9b4792000001368f, 0x67a642098cc81da6, "a"_u8s },
-        { 0x228128b7, 0x8400568d, 0x67a642098cc81da6, 0xc906440e03ce99a8, "abc"_u8s },
-        { 0x8400568d, 0x12b4858b, 0x67a642098cc81da6, 0x1a36fbf3d71b0737, "message digest"_u8s },
-        { 0x12b4858b, 0x730b822e, 0x1a36fbf3d71b0737, 0x7b48e31e3ac40a0f, "abcdefghijklmnopqrstuvwxyz"_u8s },
+        { 0x00000000, 0x00000000, 0x0000000000000000, 0x0000000000000000, "" },
+        { 0x00000001, 0xd30ac4de, 0x0000000000000001, 0x2127599bf4321e79, "" },
+        { 0xffffffff, 0xf5c7b4b0, 0xffffffffffffffff, 0x9b4792000001368f, "" },
+        { 0xf5c7b4b0, 0x228128b7, 0x9b4792000001368f, 0x67a642098cc81da6, "a" },
+        { 0x228128b7, 0x8400568d, 0x67a642098cc81da6, 0xc906440e03ce99a8, "abc" },
+        { 0x8400568d, 0x12b4858b, 0x67a642098cc81da6, 0x1a36fbf3d71b0737, "message digest" },
+        { 0x12b4858b, 0x730b822e, 0x1a36fbf3d71b0737, 0x7b48e31e3ac40a0f, "abcdefghijklmnopqrstuvwxyz" },
     };
 
     bool success32 = true;
@@ -44,8 +45,10 @@ main (void)
     util::hash::fasthash<uint64_t> h64{};
 
     for (const auto &t: TESTS) {
-        success32 = success32 && t.hash32 == h32 (t.seed32, t.data);
-        success64 = success64 && t.hash64 == h64 (t.seed64, t.data);
+        util::view data { t.data };
+
+        tap.expect_eq (t.hash32, h32 (t.seed32, data.cast<uint8_t const> ()), "h32(%0" PRIx32 ")", t.seed32);
+        tap.expect_eq (t.hash64, h64 (t.seed64, data.cast<uint8_t const> ()), "h64(%0" PRIx64 ")", t.seed64);
     }
 
     tap.expect (success32, "fasthash32");