diff --git a/libraries/ArduinoTestSuite/examples/ATS_String_Addition/Test_Equal.h b/libraries/ArduinoTestSuite/examples/ATS_String_Addition/Test_Equal.h
new file mode 100644
index 000000000..80dbc848b
--- /dev/null
+++ b/libraries/ArduinoTestSuite/examples/ATS_String_Addition/Test_Equal.h
@@ -0,0 +1,13 @@
+void Test_Equal(char *testString, char *expected, const String &actual)
+{
+  char buf[100]; actual.toCharArray(buf, 100);
+  boolean b = (strcmp(buf, expected) == 0);
+  ATS_PrintTestStatus(testString, b);
+  if (!b) {
+    Serial.print("expected '");
+    Serial.print(expected);
+    Serial.print("', actual '");
+    Serial.print(actual);
+    Serial.println("'");
+  }
+}