PIO Unit Testing fails to build multiple environments at once

[mje-nz]

What kind of issue is this?

• PlatformIO Core.
  If you’ve found a bug, please provide an information below.

You can erase any parts of this template not applicable to your Issue.

---

Configuration

Operating system: macOS 10.13.6, also Ubuntu 16.04 in a VM

PlatformIO Version (platformio --version): 4.3.4

Description of problem

If you run pio test in a project with multiple environments, many environments fail to build. Running the tests in each environment one-by-one works fine.

Steps to Reproduce

1. Clone platformio/platformio-examples
2. Run pio test in unit-testing/calculator

Actual Results

Verbose mode can be enabled via `-v, --verbose` option
Collected 3 items

Processing test_common in uno environment
----------------------------------------------
Building...
Uploading...
Error: Please specify `upload_port` for environment or use global `--upload-port` option.
For some development platforms it can be a USB flash drive (i.e. /media/<user>/<device name>)
*** [upload] Explicit exit, status 1
===== [FAILED] Took 1.90 seconds =====

Processing test_common in nodemcu environment
----------------------------------------------
Building...
Uploading...
Error: Please specify `upload_port` for environment or use global `--upload-port` option.
For some development platforms it can be a USB flash drive (i.e. /media/<user>/<device name>)
*** [upload] Explicit exit, status 1
===== [FAILED] Took 3.82 seconds =====

Processing test_common in native environment
----------------------------------------------
Building...

*** Multiple ways to build the same target were specified for: platformio-examples/unit-testing/calculator/.pio/build/native/test/output_export.o  (from ['platformio-examples/unit-testing/calculator/test/output_export.c'] and from ['platformio-examples/unit-testing/calculator/test/output_export.cpp'])
File "~/.pyenv/versions/3.7.3/lib/python3.7/site-packages/platformio/builder/tools/platformio.py", line 347, in <listcomp>
===== [FAILED] Took 0.66 seconds =====

Processing test_desktop in native environment
----------------------------------------------
Building...

*** Multiple ways to build the same target were specified for: platformio-examples/unit-testing/calculator/.pio/build/native/test/output_export.o  (from ['platformio-examples/unit-testing/calculator/test/output_export.c'] and from ['platformio-examples/unit-testing/calculator/test/output_export.cpp'])
File "~/.pyenv/versions/3.7.3/lib/python3.7/site-packages/platformio/builder/tools/platformio.py", line 347, in <listcomp>
===== [FAILED] Took 0.64 seconds =====

Processing test_embedded in uno environment
----------------------------------------------
Building...
.pio/build/uno/test/output_export.cpp.o (symbol from plugin): In function `output_start':
(.text+0x0): multiple definition of `output_start'
.pio/build/uno/test/output_export.c.o (symbol from plugin):(.text+0x0): first defined here
.pio/build/uno/test/output_export.cpp.o (symbol from plugin): In function `output_start':
(.text+0x0): multiple definition of `output_char'
.pio/build/uno/test/output_export.c.o (symbol from plugin):(.text+0x0): first defined here
.pio/build/uno/test/output_export.cpp.o (symbol from plugin): In function `output_start':
(.text+0x0): multiple definition of `output_complete'
.pio/build/uno/test/output_export.c.o (symbol from plugin):(.text+0x0): first defined here
.pio/build/uno/test/output_export.cpp.o (symbol from plugin): In function `output_start':
(.text+0x0): multiple definition of `output_flush'
.pio/build/uno/test/output_export.c.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
*** [.pio/build/uno/firmware.elf] Error 1
===== [FAILED] Took 0.94 seconds =====

Processing test_embedded in nodemcu environment
----------------------------------------------
Building...
~/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/nodemcu/test/output_export.cpp.o: in function `output_start':
output_export.cpp:(.text.output_start+0xc): multiple definition of `output_start'; .pio/build/nodemcu/test/output_export.c.o:output_export.c:(.text.output_start+0x0): first defined here
~/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/nodemcu/test/output_export.cpp.o: in function `output_char':
output_export.cpp:(.text.output_char+0x4): multiple definition of `output_char'; .pio/build/nodemcu/test/output_export.c.o:output_export.c:(.text.output_char+0x8): first defined here
~/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/nodemcu/test/output_export.cpp.o: in function `output_flush':
output_export.cpp:(.text.output_flush+0x8): multiple definition of `output_flush'; .pio/build/nodemcu/test/output_export.c.o:output_export.c:(.text.output_flush+0x8): first defined here
~/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/nodemcu/test/output_export.cpp.o: in function `output_complete':
output_export.cpp:(.text.output_complete+0x8): multiple definition of `output_complete'; .pio/build/nodemcu/test/output_export.c.o:output_export.c:(.text.output_complete+0x0): first defined here
collect2: error: ld returned 1 exit status
*** [.pio/build/nodemcu/firmware.elf] Error 1
===== [FAILED] Took 2.08 seconds =====

Test           Environment    Status    Duration
-------------  -------------  --------  ------------
test_common    uno            FAILED    00:00:01.898
test_common    nodemcu        FAILED    00:00:03.821
test_common    native         FAILED    00:00:00.663
test_desktop   uno            IGNORED
test_desktop   nodemcu        IGNORED
test_desktop   native         FAILED    00:00:00.637
test_embedded  uno            FAILED    00:00:00.936
test_embedded  nodemcu        FAILED    00:00:02.080
test_embedded  native         IGNORED
====== 6 failed, 0 succeeded in 00:00:10.035 ======

Expected Results

Uno and NodeMCU tests should at least build. Native tests should build and pass.

Additional info

I'm not sure if running tests on multiple embedded targets at once is supposed to work, but the example in the docs is pio test -e uno -e native and it fails in the same way.

I came across this problem on a personal project with an ESP32 environment and a native environment -- the ESP32 test passes and the native test fails to build with the same Multiple ways to build the same target were specified for ... error.

[bastianhjaeger]

Same here.

If I start my platformio.ini with

[platformio]
default_envs = 
    esp32
    esp8266
    desktop

I get the error on "Processing common in esp32 environment"

and I i remove the "desktop" from the defaults, "common with desktop" is ignored

[valeros]

Thanks for the report! Please upgrade to the latest PlatformIO from the development branch via pio upgrade --dev and try again.

[mje-nz]

Works for me, thanks :)