Previously, the echo test followed a flow like the following:
-STEP- -HOST PC- -DEVICE-
0 send _sync
1 echo back _sync
2 send echo_count
3 echo back echo_count
4 send first echo packet
5 echo back echo packet
(repeat echo steps)
However, as noted by issue #6659, this test would somtimes fail between
steps 4 and 5. To ensure each KV pair makes to the correct destination,
we usually write the KV back. Step 4 does not wait for this to happen
and starts sending echo packets. So the device is acting as the "echo
server".
This change makes the host PC the "echo server". The idea being that the
device will be slower and the host pc should always be able to keep up
with it, not the other way around.
1) if we receive more than one __sync, previous handshake would consider
it as echo_count and try to decode the value. Now we skip superfluous __sync.
2) reduce the uart load produced by the test, as we are heavily running tests in
parallel and not one-to-one this update was required.
This commit adds the following test frameworks:
- `greentea-client` (https://github.com/ARMmbed/greentea-client)
- This framework provides a key-value api for communicating with the
greentea test tool (https://github.com/ARMmbed/greentea)
- `unity` (https://github.com/ARMmbed/unity)
- This framework provides test assert macros that can be used when
writing test cases
- `utest` (https://github.com/ARMmbed/utest)
- This framework allows you to execute a series of test cases with
reporting that works with the greentea test tool
(https://github.com/ARMmbed/greentea)
The following changes were made when bringing these frameworks into the
tree:
- References to `mbed_drivers/mbed.h` within utest's tests were migrated
to `mbed.h`
- The yotta file `module.json` was removed from `greentea-client` and
`unity`
- `coverage.json` was also removed from `greentea-client`
- `.gitignore` and `.gitattributes` were removed from `greentea-client`
- Apache 2.0 license files were removed from `greentea-client`
This also brings in a number of tests that have been newly written or ported from various sources:
- `TESTS/integration` - Very basic tests, used to check if testing frameworks are working correctly
- `TESTS/mbed_drivers` (Thanks @PrzemekWirkus!) - TESTS ported from mbed OS 3.0 (https://github.com/ARMmbed/mbed-drivers)
- `TESTS/mbedmicro-mbed` (Thanks @PrzemekWirkus!) - Tests that weren't covered by `TESTS/mbed_drivers` that currently live in `libraries/tests/mbed`
- `TESTS/mbedmicro-rtos-mbed` (Thanks @PrzemekWirkus!) - Ported tests that currently live in `libraries/tests/rtos/mbed`
- `TESTS/storage_abstraction` (Thanks @rgrover!) - Tests for the storage_abstraction hal
Martin Kojtal
Brian Daniels
Shrikant Tudavekar