diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..5cf7002
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,4 @@
+language: cpp
+os: linux
+script:
+    - g++ *.cpp
diff --git a/Inventory.cpp b/Inventory.cpp
index de8e7b8..122e60d 100644
--- a/Inventory.cpp
+++ b/Inventory.cpp
@@ -4,7 +4,7 @@
 
 using std::string;
 using std::ostream;
-  
+
 Inventory::Inventory(string name, float price, int count)
 {
   m_name = name;
@@ -14,12 +14,21 @@ Inventory::Inventory(string name, float price, int count)
 
 void Inventory::sell()
 {
+  if(m_in_stock>0){
   m_in_stock--;
 }
+}
 
 ostream& operator<<(ostream& stream, const Inventory& item)
 {
+  if(item.m_in_stock==0){
+    stream << "Sorry, that item is out of stock";
+  }
+  else{
+
   stream << item.m_name << " $"
          << std::fixed << std::setprecision(2) << item.m_price;
-  return stream;
-}
\ No newline at end of file
+
+}
+return stream;
+}
diff --git a/Inventory.h b/Inventory.h
index c52d5d8..0531177 100644
--- a/Inventory.h
+++ b/Inventory.h
@@ -18,4 +18,4 @@ class Inventory
     friend ostream& operator<<(ostream&, const Inventory&);
 };
 
-#endif
\ No newline at end of file
+#endif
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a8e829d
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+[![Build Status](https://travis-ci.com/adhaar-star/Inventory.svg?branch=master)](https://travis-ci.com/adhaar-star/Inventory)
diff --git a/a.out b/a.out
new file mode 100755
index 0000000..168b967
Binary files /dev/null and b/a.out differ
diff --git a/main.cpp b/main.cpp
index 08d69fc..2ab6338 100644
--- a/main.cpp
+++ b/main.cpp
@@ -26,4 +26,4 @@ int main()
   }while( choice != 'q' && choice != 'Q');
 
   return 0;
-}
\ No newline at end of file
+}