include: Add a group for mock objects.
diff --git a/include/cmocka.h b/include/cmocka.h
index 743810d..6f0bacc 100755
--- a/include/cmocka.h
+++ b/include/cmocka.h
@@ -123,6 +123,18 @@
#define cast_ptr_to_largest_integral_type(value) \
cast_to_largest_integral_type(cast_to_pointer_integral_type(value))
+/**
+ * @defgroup cmocka_mock Mock Objects
+ * @ingroup cmocka.
+ *
+ * Mock objects mock objects are simulated objects that mimic the behavior of
+ * real objects. Instead of calling the real objects, the tested object calls a
+ * mock object that merely asserts that the correct methods were called, with
+ * the expected parameters, in the correct order.
+ *
+ * @{
+ */
+
#ifdef DOXYGEN
/**
* @brief Retrieve a return value of the current function.
@@ -189,6 +201,8 @@
cast_to_largest_integral_type(value), count)
#endif
+/** @} */
+
/*
* Add a custom parameter checking function. If the event parameter is NULL
* the event structure is allocated internally by this function. If event
