2 files changed, 43 insertions, 1 deletions
diff --git a/source/test/unittests/CMakeLists.txt b/source/test/unittests/CMakeLists.txt
index 2ebc195..a73ca6e 100644
--- a/source/test/unittests/CMakeLists.txt
+++ b/source/test/unittests/CMakeLists.txt
@@ -3,6 +3,6 @@ target_sources(
     PRIVATE
       async_function.test.c bigint.test.c mutex.test.c
       test_duration.test.c main.test.c string_ref.test.c atomic.test.c thread.test.c
-      array_ref.test.c input_stream.test.c lower_bound.test.c
+      array_ref.test.c input_stream.test.c sha256.test.c lower_bound.test.c
       secure_random.test.c condition_variable.test.c mersenne_twister_64.test.c
       input_buffer.test.c move_back.test.c dynamic_array.test.c file.test.c)
diff --git a/source/test/unittests/sha256.test.c b/source/test/unittests/sha256.test.c
new file mode 100644
index 0000000..e74b286
--- /dev/null
+++ b/source/test/unittests/sha256.test.c
@@ -0,0 +1,42 @@
+#include "../../kit/sha256.h"
+#include "../../kit/array_ref.h"
+
+#define KIT_TEST_FILE sha256_64
+#include "../../kit_test/test.h"
+
+#include <string.h>
+
+TEST("sha256") {
+  uint8_t text1[] = "abc";
+  uint8_t text2[] =
+      "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
+
+  uint8_t text3[1000000];
+  memset(text3, 'a', sizeof text3);
+
+  uint8_t hash1[] = {
+    0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, 0x40,
+    0xde, 0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17,
+    0x7a, 0x9c, 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad
+  };
+  uint8_t hash2[] = {
+    0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8, 0xe5, 0xc0, 0x26,
+    0x93, 0x0c, 0x3e, 0x60, 0x39, 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff,
+    0x21, 0x67, 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1
+  };
+  uint8_t hash3[] = {
+    0xcd, 0xc7, 0x6e, 0x5c, 0x99, 0x14, 0xfb, 0x92, 0x81, 0xa1, 0xc7,
+    0xe2, 0x84, 0xd7, 0x3e, 0x67, 0xf1, 0x80, 0x9a, 0x48, 0xa4, 0x97,
+    0x20, 0x0e, 0x04, 0x6d, 0x39, 0xcc, 0xc7, 0x11, 0x2c, 0xd0
+  };
+
+  REQUIRE(ar_equal_bytes(1, SHA256_BLOCK_SIZE,
+                         sha256((sizeof text1) - 1, text1).v, 1,
+                         SHA256_BLOCK_SIZE, hash1));
+  REQUIRE(ar_equal_bytes(1, SHA256_BLOCK_SIZE,
+                         sha256((sizeof text2) - 1, text2).v, 1,
+                         SHA256_BLOCK_SIZE, hash2));
+  REQUIRE(ar_equal_bytes(1, SHA256_BLOCK_SIZE,
+                         sha256(sizeof text3, text3).v, 1,
+                         SHA256_BLOCK_SIZE, hash3));
+}