Unit testing, library and ETL (Embedded Template Library)

1

I am quite new to platformio and trying to start my own library, but have run into a problem. The library is available here: BlackEdder / AODVRouter · GitLab

It depends on the Embedded Template Library (ETL) and I am trying to setup unit testing. To run my test I tried:

platformio ci --board=nodemcuv2 --lib="." test/test_main.cpp

But I get an error that seems to be ETL related:

...
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring.o
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring_analog.o
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring_digital.o
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring_pulse.o
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring_pwm.o
Compiling .pioenvs/nodemcuv2/FrameworkArduino/core_esp8266_wiring_shift.o
In file included from /home/edwin/.platformio/lib/Embedded Template Library_ID9
30/src/ibasic_string.h:39:0,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/basic_stri
ng.h:38,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/string.h:3
5,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/bitset.h:3
6,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/pool.h:36,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/imap.h:44,
from /home/edwin/.platformio/lib/Embedded Template Library_ID930/src/map.h:38,
from lib/aodvRouting/src/AODVRouter.h:4,
from src/test_main.cpp:1:
/home/edwin/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/
4.8.2/cstring:75:11: error: '::memchr' has not been declared
using ::memchr;
^
/home/edwin/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/
4.8.2/cstring:76:11: error: '::memcmp' has not been declared
using ::memcmp;
^
/home/edwin/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/
4.8.2/cstring:77:11: error: '::memcpy' has not been declared
using ::memcpy;
^
...

Is this a problem with ETL? Or is this a problem with how I am trying to run my tests.

2

Turns out I had an trailing .h after my includes. Still now I get complaints about undefined UNITY_BEGIN. Any way to include them without calling platformio test?

3

You have to use pio test or pio remote test commands instead of pio ci. See

4

That page suggest it would not work for a library though.

5

You need to create platformio.ini file in the root of your repo

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; http://docs.platformio.org/page/projectconf.html

[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino
lib_deps = Embedded Template Library

[env:native]
platform = native
lib_deps = Embedded Template Library

Then run pio test in the project dir.

6

Thank you, so that means I need both a platformio.ini and a library.json? That seems quite redundant, but manageable.

The Embedded Template Library compiled fine, but when I try to run pio test I get loads of the following errors:

.piolibdeps/Embedded Template Library_ID930/src/array.h:469:3: error: template with C linkage
template <std::size_t I, typename T, std::size_t MAXN>
^

so I get the feeling I still have something setup wrong.

7

Does it work with Arduino IDE?