diff --git a/test/sha256t.c b/test/sha256t.c
index 315d10f..90262d9 100644
--- a/test/sha256t.c
+++ b/test/sha256t.c
@@ -64,7 +64,8 @@
 
     fprintf(stdout, "Testing SHA-256 ");
 
-    EVP_Digest("abc", 3, md, NULL, EVP_sha256(), NULL);
+    if (!EVP_Digest("abc", 3, md, NULL, EVP_sha256(), NULL))
+        goto err;
     if (memcmp(md, app_b1, sizeof(app_b1))) {
         fflush(stdout);
         fprintf(stderr, "\nTEST 1 of 3 failed.\n");
@@ -73,9 +74,10 @@
         fprintf(stdout, ".");
     fflush(stdout);
 
-    EVP_Digest("abcdbcde" "cdefdefg" "efghfghi" "ghijhijk"
-               "ijkljklm" "klmnlmno" "mnopnopq", 56, md, NULL, EVP_sha256(),
-               NULL);
+    if (!EVP_Digest("abcdbcde" "cdefdefg" "efghfghi" "ghijhijk"
+                    "ijkljklm" "klmnlmno" "mnopnopq", 56, md,
+                     NULL, EVP_sha256(), NULL))
+        goto err;
     if (memcmp(md, app_b2, sizeof(app_b2))) {
         fflush(stdout);
         fprintf(stderr, "\nTEST 2 of 3 failed.\n");
@@ -90,19 +92,23 @@
         fprintf(stderr, "\nTEST 3 of 3 failed. (malloc failure)\n");
         return 1;
     }
-    EVP_DigestInit_ex(evp, EVP_sha256(), NULL);
-    for (i = 0; i < 1000000; i += 288)
-        EVP_DigestUpdate(evp, "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa",
-                         (1000000 - i) < 288 ? 1000000 - i : 288);
-    EVP_DigestFinal_ex(evp, md, NULL);
+    if (!EVP_DigestInit_ex(evp, EVP_sha256(), NULL))
+        goto err;
+    for (i = 0; i < 1000000; i += 288) {
+        if (!EVP_DigestUpdate(evp, "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa",
+                              (1000000 - i) < 288 ? 1000000 - i : 288))
+            goto err;
+    }
+    if (!EVP_DigestFinal_ex(evp, md, NULL))
+            goto err;
 
     if (memcmp(md, app_b3, sizeof(app_b3))) {
         fflush(stdout);
@@ -117,7 +123,8 @@
 
     fprintf(stdout, "Testing SHA-224 ");
 
-    EVP_Digest("abc", 3, md, NULL, EVP_sha224(), NULL);
+    if (!EVP_Digest("abc", 3, md, NULL, EVP_sha224(), NULL))
+        goto err;
     if (memcmp(md, addenum_1, sizeof(addenum_1))) {
         fflush(stdout);
         fprintf(stderr, "\nTEST 1 of 3 failed.\n");
@@ -126,9 +133,10 @@
         fprintf(stdout, ".");
     fflush(stdout);
 
-    EVP_Digest("abcdbcde" "cdefdefg" "efghfghi" "ghijhijk"
-               "ijkljklm" "klmnlmno" "mnopnopq", 56, md, NULL, EVP_sha224(),
-               NULL);
+    if (!EVP_Digest("abcdbcde" "cdefdefg" "efghfghi" "ghijhijk"
+                    "ijkljklm" "klmnlmno" "mnopnopq", 56, md,
+                    NULL, EVP_sha224(), NULL))
+        goto err;
     if (memcmp(md, addenum_2, sizeof(addenum_2))) {
         fflush(stdout);
         fprintf(stderr, "\nTEST 2 of 3 failed.\n");
@@ -138,12 +146,16 @@
     fflush(stdout);
 
     EVP_MD_CTX_reset(evp);
-    EVP_DigestInit_ex(evp, EVP_sha224(), NULL);
-    for (i = 0; i < 1000000; i += 64)
-        EVP_DigestUpdate(evp, "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
-                         "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa",
-                         (1000000 - i) < 64 ? 1000000 - i : 64);
-    EVP_DigestFinal_ex(evp, md, NULL);
+    if (!EVP_DigestInit_ex(evp, EVP_sha224(), NULL))
+        goto err;
+    for (i = 0; i < 1000000; i += 64) {
+        if (!EVP_DigestUpdate(evp, "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa"
+                              "aaaaaaaa" "aaaaaaaa" "aaaaaaaa" "aaaaaaaa",
+                              (1000000 - i) < 64 ? 1000000 - i : 64))
+            goto err;
+    }
+    if (!EVP_DigestFinal_ex(evp, md, NULL))
+            goto err;
     EVP_MD_CTX_free(evp);
 
     if (memcmp(md, addenum_3, sizeof(addenum_3))) {
@@ -158,4 +170,8 @@
     fflush(stdout);
 
     return 0;
+
+ err:
+    fprintf(stderr, "Fatal EVP error!\n");
+    return 1;
 }