Add additional test

Author: zauguin

tests/error_log2.cc

@@ -0,0 +1,35 @@
+#include <iostream>
+#include <iomanip>
+#include <string>
+#include <memory>
+#include <stdexcept>
+#include <sqlite_modern_cpp.h>
+#include <sqlite_modern_cpp/log.h>
+using namespace sqlite;
+using namespace std;
+
+
+int main() {
+  bool error_detected = false;
+  error_log(
+  	[&](errors::constraint e) {
+    	cerr << e.get_code() << '/' << e.get_extended_code() << ": " << e.what() << endl;
+    	error_detected = true;
+  	}
+  );
+  database db(":memory:");
+  db << "CREATE TABLE person (id integer primary key not null, name TEXT);";
+
+  try {
+    db << "INSERT INTO person (id,name) VALUES (?,?)" << 1 << "jack";
+    // inserting again to produce error
+    db << "INSERT INTO person (id,name) VALUES (?,?)" << 1 << "jack";
+  } catch (errors::constraint& e) {
+  }
+
+  if(!error_detected) {
+    exit(EXIT_FAILURE);
+  }
+  
+  exit(EXIT_SUCCESS);
+}