1 files changed, 28 insertions, 13 deletions
diff --git a/tests/test_olm_decrypt.cpp b/tests/test_olm_decrypt.cpp
index 95cb18e..4a1fb97 100644
--- a/tests/test_olm_decrypt.cpp
+++ b/tests/test_olm_decrypt.cpp
@@ -1,11 +1,16 @@
 #include "olm/olm.h"
 #include "unittest.hh"
 
-const char * test_cases[] = {
-    "41776f",
-    "7fff6f0101346d671201",
-    "ee776f41496f674177804177778041776f6716670a677d6f670a67c2677d",
-    "e9e9c9c1e9e9c9e9c9c1e9e9c9c1",
+struct test_case {
+    const char *msghex;
+    const char *expected_error;
+};
+
+const test_case test_cases[] = {
+    { "41776f", "BAD_MESSAGE_FORMAT" },
+    { "7fff6f0101346d671201", "BAD_MESSAGE_FORMAT" },
+    { "ee776f41496f674177804177778041776f6716670a677d6f670a67c2677d", "BAD_MESSAGE_FORMAT" },
+    { "e9e9c9c1e9e9c9e9c9c1e9e9c9c1", "BAD_MESSAGE_FORMAT" },
 };
 
 
@@ -31,29 +36,39 @@ void decode_hex(
     }
 }
 
-void decrypt_case(int message_type, const char * test_case) {
+void decrypt_case(int message_type, const test_case * test_case) {
     std::uint8_t session_memory[olm_session_size()];
     ::OlmSession * session = ::olm_session(session_memory);
 
     std::uint8_t pickled[strlen(session_data)];
     ::memcpy(pickled, session_data, sizeof(pickled));
-    ::olm_unpickle_session(session, "", 0, pickled, sizeof(pickled));
+    assert_not_equals(
+        ::olm_error(),
+        ::olm_unpickle_session(session, "", 0, pickled, sizeof(pickled))
+    );
 
-    std::size_t message_length = strlen(test_case) / 2;
+    std::size_t message_length = strlen(test_case->msghex) / 2;
     std::uint8_t * message = (std::uint8_t *) ::malloc(message_length);
-    decode_hex(test_case, message, message_length);
+    decode_hex(test_case->msghex, message, message_length);
 
     size_t max_length = olm_decrypt_max_plaintext_length(
         session, message_type, message, message_length
     );
 
-    if (max_length == std::size_t(-1)) {
+    if (test_case->expected_error) {
+        assert_equals(::olm_error(), max_length);
+        assert_equals(
+            std::string(test_case->expected_error),
+            std::string(::olm_session_last_error(session))
+        );
         free(message);
         return;
     }
 
+    assert_not_equals(::olm_error(), max_length);
+
     uint8_t plaintext[max_length];
-    decode_hex(test_case, message, message_length);
+    decode_hex(test_case->msghex, message, message_length);
     olm_decrypt(
         session, message_type,
         message, message_length,
@@ -67,8 +82,8 @@ int main() {
 {
 TestCase my_test("Olm decrypt test");
 
-for (unsigned int i = 0; i < sizeof(test_cases)/ sizeof(const char *); ++i) {
-    decrypt_case(0, test_cases[i]);
+for (unsigned int i = 0; i < sizeof(test_cases)/ sizeof(test_cases[0]); ++i) {
+    decrypt_case(0, &test_cases[i]);
 }
 
 }