1 files changed, 60 insertions, 0 deletions
diff --git a/src/test/test_dnstap.c b/src/test/test_dnstap.c
new file mode 100644
index 0000000..fd199f8
--- /dev/null
+++ b/src/test/test_dnstap.c
@@ -0,0 +1,60 @@
+#include <dnswire/dnstap.h>
+
+#include <assert.h>
+
+#include "create_dnstap.c"
+
+int main(void)
+{
+    uint8_t       buf[256 * 1024];
+    size_t        s;
+    struct dnstap d = DNSTAP_INITIALIZER;
+    struct dnstap u = DNSTAP_INITIALIZER;
+
+    create_dnstap(&d, "test_dnstap");
+
+    // failed unpack
+    assert(dnstap_decode_protobuf(&u, buf, 1) == 1);
+
+    // invalid dnstap.type
+    d.dnstap.type = (enum _Dnstap__Dnstap__Type)(DNSTAP_TYPE_MESSAGE + 1);
+    s             = dnstap_encode_protobuf_size(&d);
+    assert(s < sizeof(buf));
+    assert(dnstap_encode_protobuf(&d, buf) == s);
+    assert(dnstap_decode_protobuf(&u, buf, s) == 0);
+    assert(u.dnstap.type == (enum _Dnstap__Dnstap__Type)DNSTAP_TYPE_UNKNOWN);
+    dnstap_cleanup(&u);
+    d.dnstap.type = (enum _Dnstap__Dnstap__Type)DNSTAP_TYPE_MESSAGE;
+
+    // invalid message.type
+    d.message.type = (enum _Dnstap__Message__Type)(DNSTAP_MESSAGE_TYPE_TOOL_RESPONSE + 1);
+    s              = dnstap_encode_protobuf_size(&d);
+    assert(s < sizeof(buf));
+    assert(dnstap_encode_protobuf(&d, buf) == s);
+    assert(dnstap_decode_protobuf(&u, buf, s) == 0);
+    assert(u.message.type == (enum _Dnstap__Message__Type)DNSTAP_MESSAGE_TYPE_UNKNOWN);
+    dnstap_cleanup(&u);
+    d.message.type = (enum _Dnstap__Message__Type)DNSTAP_MESSAGE_TYPE_TOOL_QUERY;
+
+    // invalid message.socket_family
+    d.message.socket_family = (enum _Dnstap__SocketFamily)(DNSTAP_SOCKET_FAMILY_INET6 + 1);
+    s                       = dnstap_encode_protobuf_size(&d);
+    assert(s < sizeof(buf));
+    assert(dnstap_encode_protobuf(&d, buf) == s);
+    assert(dnstap_decode_protobuf(&u, buf, s) == 0);
+    assert(u.message.socket_family == (enum _Dnstap__SocketFamily)DNSTAP_SOCKET_FAMILY_UNKNOWN);
+    dnstap_cleanup(&u);
+    d.message.socket_family = (enum _Dnstap__SocketFamily)DNSTAP_SOCKET_FAMILY_INET;
+
+    // invalid message.socket_protocol
+    d.message.socket_protocol = (enum _Dnstap__SocketProtocol)(DNSTAP_SOCKET_PROTOCOL_TCP + 1);
+    s                         = dnstap_encode_protobuf_size(&d);
+    assert(s < sizeof(buf));
+    assert(dnstap_encode_protobuf(&d, buf) == s);
+    assert(dnstap_decode_protobuf(&u, buf, s) == 0);
+    assert(u.message.socket_protocol == (enum _Dnstap__SocketProtocol)DNSTAP_SOCKET_PROTOCOL_UNKNOWN);
+    dnstap_cleanup(&u);
+    d.message.socket_protocol = (enum _Dnstap__SocketProtocol)DNSTAP_SOCKET_PROTOCOL_UDP;
+
+    return 0;
+}