diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 2388b8d..714fb4e 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -4,3 +4,6 @@ set(SRC_DIR "../src")
 
 add_executable("parse_config" "${SRC_DIR}/config.c" "parse_config.c")
 add_test("parse_config" "parse_config")
+
+add_executable("check_config" "${SRC_DIR}/config.c" "check_config.c")
+add_test("check_config" "check_config")
diff --git a/tests/check_config.c b/tests/check_config.c
new file mode 100644
index 0000000..3a9921e
--- /dev/null
+++ b/tests/check_config.c
@@ -0,0 +1,28 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../src/config.h"
+
+#define STEAL(attr) \
+  stealed = config.attr, config.attr = NULL, config.error = NULL; \
+  assert(check_config(&config) > 0); \
+  assert(config.error != NULL); \
+  config.attr = stealed
+
+int main(void) {
+  char *stealed = NULL;
+  oal_config_t config;
+
+  memset(&config, 0x0, sizeof(oal_config_t));
+
+  assert(parse_config(&config, "test.conf") == 0);
+
+  STEAL(bindpass);
+  STEAL(userfilter);
+  STEAL(basedn);
+  STEAL(bindurls);
+
+  return 0;
+}