+ overview hierarchical role test cases
diff --git a/src/test/java/org/apache/directory/fortress/core/impl/README-TEST-CASES.md b/src/test/java/org/apache/directory/fortress/core/impl/README-TEST-CASES.md
new file mode 100644
index 0000000..57ebd08
--- /dev/null
+++ b/src/test/java/org/apache/directory/fortress/core/impl/README-TEST-CASES.md
@@ -0,0 +1,46 @@
+# README TESTING
+
+## 1 - Hierarchical Roles
+
+### Sample Hierarchy - Graph
+
+```
+┌───────────────────────────────────────────────┐
+│A1 │
+└△─────────────────────────────────────────────△┘
+┌┴───────────────────────────────────────────┐┌┴─────────────────┐
+│B2A1 ││B1A1 │
+└△──────────────────────△───────────────────△┘└△────────────────△┘
+┌┴────────────────────┐┌┴─────────────────┐┌┴──┴──────────────┐┌┴───────┐
+│C4B2A1 ││C3B2A1 ││C2B1A1 ││C1B1A1 │
+└△─────────△─────────△┘└△──────△─────────△┘└△──────△─────────△┘└△──────△┘
+┌┴───────┐┌┴───────┐┌┴──┴────┐┌┴───────┐┌┴──┴────┐┌┴───────┐┌┴──┴────┐┌┴───────┐
+│D8C4B2A1││D7C4B2A1││D6C3B2A1││D5C3B2A1││D4C2B1A1││D3C2B1A1││D2C1B1A1││D1C1B1A1│
+└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘
+```
+
+- In a top-down role hierarchy, privilege increases as we descend downward.
+- e.g. Assignees with role *D7C4B2A1* inherits all that are above: [ C4B2A1, B2A1, A1 ]
+- RBAC1 General role hierarchies supports multiple inheritance, from two or more parents.
+- e.g. Assignees with role *D4C2B1A1*: [ C3B2A1, C2B1A1, B2A1, B1A1, A1 ]
+
+
+### Sample Hierarchy - Role: Parent(s)
+
+```
+A1
+B1A1: A1
+B2A1: A1
+C1B1A1: A1, B1A1
+C2B1A1: A1, B1A1
+C3B2A1: A1, B2A1
+C4B2A1: A1, B2A1
+D1C1B1A1: A1, B1A1, C1B1A1
+D2C1B1A1: A1, B1A1, C1B1A1
+D3C2B1A1: A1, B1A1, C2B1A1
+D4C2B1A1: A1, B1A1, C2B1A1
+D5C3B2A1: A1, B2A1, C3B2A1
+D6C3B2A1: A1, B2A1, C3B2A1
+D7C4B2A1: A1, B2A1, C4B2A1
+D8C4B2A1: A1, B2A1, C4B2A1
+```
