From 588ec1b44c14b00a32e77941eb78c9254968f6aa Mon Sep 17 00:00:00 2001
From: tastytea <tastytea@tastytea.de>
Date: Fri, 18 Jan 2019 15:54:57 +0100
Subject: [PATCH] Added tests for C interface

---
 src/tests/test_c.cpp | 76 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/tests/test_c.cpp

diff --git a/src/tests/test_c.cpp b/src/tests/test_c.cpp
new file mode 100644
index 0000000..0af6585
--- /dev/null
+++ b/src/tests/test_c.cpp
@@ -0,0 +1,76 @@
+#include <catch.hpp>
+#include <string>
+#include <exception>
+#include <vector>
+#include <cstdint>
+#include <Magick++/Image.h>
+#include "identiconpp_c.h"
+
+using std::string;
+using std::uint8_t;
+using std::uint64_t;
+
+SCENARIO("C interface", "[C]")
+{
+    GIVEN("The digest: sha256(test@example.com)")
+    {
+        char digest[65] = "973dfe463ec85785f5f95af5ba3906ee"
+                          "db2d931c24e69824a89ea65dba4e813b";
+        const uint8_t padding[2] = { 20, 40 };
+        bool success = false;
+
+        WHEN("256 bits of entropy is required")
+        {
+            const char colors[15][9] =
+            {
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff",
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff",
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff"
+            };
+
+            success = identiconpp_setup(18, 28,
+                                        identiconpp_ltr_symmetric,
+                                        "ffffffff",
+                                        colors, 15, padding);
+            uint64_t len = identiconpp_generate("png", digest, 50);
+            if (len == 0)
+            {
+                success = false;
+            }
+            if (string(identiconpp_base64()).length() != len)
+            {
+                success = false;
+            }
+
+            THEN("Does not crash")
+            {
+                REQUIRE(success == true);
+            }
+        }
+
+        WHEN("257 bits of entropy is required")
+        {
+            const char colors[16][9] =
+            {
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff",
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff",
+                "000000ff", "000000ff", "000000ff", "000000ff", "000000ff",
+                "000000ff"
+            };
+
+            success = identiconpp_setup(18, 28,
+                                        identiconpp_ltr_symmetric,
+                                        "ffffffff",
+                                        colors, 16, padding);
+            if (identiconpp_generate("png", digest, 50) == 0)
+            {
+                success = false;
+            }
+
+            THEN("Crashes")
+            {
+                REQUIRE(success == false);
+            }
+        }
+    }
+}