slightly better demo

1 files changed, 12 insertions, 0 deletions

diff --git a/client/simple_client_demo.cpp b/client/simple_client_demo.cpp
index 18003ba70dd..f4278dd4e54 100644
--- a/client/simple_client_demo.cpp
+++ b/client/simple_client_demo.cpp
@@ -31,6 +31,18 @@ int main() {
 
         bo o = BSON( "hello" << "world" );
         c.insert("test.foo", o);
+
+        string e = c.getLastError();
+        if( !e.empty() ) { 
+            cout << "insert #1 failed: " << e << endl;
+        }
+
+        // make an index with a unique key constraint
+        c.ensureIndex("test.foo", BSON("hello"<<1), /*unique*/true);
+
+        c.insert("test.foo", o); // will cause a dup key error on "hello" field
+        cout << "we expect a dup key error here:" << endl;
+        cout << "  " << c.getLastErrorDetailed().toString() << endl;
     } 
     catch(DBException& e) { 
         cout << "caught DBException " << e.toString() << endl;