## Running tests
+The top level Makefile has a number of useful targets to assist with
+implementation development and testing. The `help` target provides
+a list of the targets and options:
+
+```
+make help
+```
+
### Functional tests
The are over 600 generic functional tests (for all implementations)
a time to the implementation and compares the output/return value to
the expected output/return value.
-To simplify the process of running tests, a top level Makefile is
-provided with convenient test targets.
-
* To run all the tests across all implementations (be prepared to wait):
```