Tests for various String addition cases.

Author: damellis

libraries/ArduinoTestSuite/examples/ATS_String_Addition/ATS_String_Addition.pde

@@ -26,17 +26,22 @@ void setup()
   Test_Equal("Adding strings doesn't change them", "string", stringOne);
   Test_Equal("Adding strings doesn't change them", "other", stringTwo);  
   Test_Equal("Add strings", "stringotherstringstringstringother", stringOne + stringTwo + stringOne + stringOne + stringOne + stringTwo);
-  Test_Equal("Add integer to string", "string123", stringOne + 123);
+  Test_Equal("Add string to integer", "string12345", stringOne + 12345);
+  Test_Equal("Add string to negative integer", "string-12345", stringOne + -12345);
   Test_Equal("Add integer to string", "123string", 123 + stringOne);
-  Test_Equal("Add integers to string", "string123456", stringOne + 123 + 456);
-  Test_Equal("Add integer sum to string", "string579", stringOne + (123 + 456));
-  Test_Equal("Add integers to string", "string123456789", stringOne + 123 + 456 + 789);
-  Test_Equal("Add integers to string", "123string456", 123 + stringOne + 456);
-  Test_Equal("Add long to string", "string123456789", stringOne + 123456789);
+  Test_Equal("Add string to integers", "string123456789", stringOne + 123 + 456 + 789);
+  Test_Equal("Add integer to string", "123string456789", 123 + stringOne + 456 + 789);
+  Test_Equal("Add string to long", "string123456789", stringOne + 123456789L);
+  Test_Equal("Add string to negative long", "string-123456789", stringOne + -123456789L);
+  Test_Equal("Add string to unsigned long", "string123456789", stringOne + 123456789UL);
+  Test_Equal("Add string to byte", "string123", stringOne + byte(123));
   Test_Equal("Add char", "stringA", stringOne + 'A');
   Test_Equal("Add char", "Astring", 'A' + stringOne);
-  Test_Equal("Add \"string\"", "stringabc", stringOne +  "abc");
-  Test_Equal("Add multiple types", "string123A123456789", stringOne + 123 + 'A' + 123456789);
+  Test_Equal("Add \"string\"", "stringabc", stringOne + "abc");
+  Test_Equal("Add \"string\"", "abcstring", "abc" + stringOne);
+  Test_Equal("Add multiple \"string\"", "stringabcdef", stringOne + "abc" + "def");
+  Test_Equal("Add multiple \"string\"", "abcstringdef", "abc" + stringOne + "def");
+  Test_Equal("Add \"string\" and int", "bc", "abc" + 1);
 
   ATS_end();
 }