1 files changed, 24 insertions, 0 deletions
diff --git a/tests/unit/util/crypto.scm b/tests/unit/util/crypto.scm
new file mode 100644
index 00000000..7be301a0
--- /dev/null
+++ b/tests/unit/util/crypto.scm
@@ -0,0 +1,24 @@
+(define-module (test crypto)
+  :use-module (srfi srfi-64)
+  :use-module (srfi srfi-64 test-error)
+  :use-module (srfi srfi-88)
+  :use-module ((crypto) :select (sha256 checksum->string)))
+
+(test-equal "sha256"
+  #vu8(24 95 141 179 34 113 254 37 245 97 166 252 147 139 46 38 67 6 236 48 78 218 81 128 7 209 118 72 38 56 25 105)
+  (sha256 "Hello"))
+
+(test-equal "sha256 string digest"
+  "185f8db32271fe25f561a6fc938b2e264306ec304eda518007d1764826381969"
+  (checksum->string (sha256 "Hello")))
+
+(let ((port (open-output-string)))
+  (checksum->string (sha256 "Hello") port)
+  (test-equal "sha256 string digest to port"
+    "185f8db32271fe25f561a6fc938b2e264306ec304eda518007d1764826381969"
+    (get-output-string port)))
+
+(test-error 'wrong-type-arg
+  (sha256 'something-which-is-not-a-string-or-bytevector))
+
+'((crypto))