Setup a python test framework

lib/python/qmk/cli/doctor.py

@@ -2,9 +2,11 @@
 
 Check up for QMK environment.
 """
-import shutil
-import platform
 import os
+import platform
+import shutil
+import subprocess
+from glob import glob
 
 from milc import cli
 
@@ -16,32 +18,44 @@ def main(cli):
     This is currently very simple, it just checks that all the expected binaries are on your system.
 
     TODO(unclaimed):
-        * [ ] Run the binaries to make sure they work
         * [ ] Compile a trivial program with each compiler
         * [ ] Check for udev entries on linux
     """
 
     binaries = ['dfu-programmer', 'avrdude', 'dfu-util', 'avr-gcc', 'arm-none-eabi-gcc']
+    binaries += glob('bin/qmk-*')
 
-    cli.log.info('QMK Doctor is Checking your environment')
+    cli.log.info('QMK Doctor is checking your environment')
 
     ok = True
     for binary in binaries:
         res = shutil.which(binary)
         if res is None:
-            cli.log.error('{fg_red}QMK can\'t find ' + binary + ' in your path')
+            cli.log.error("{fg_red}QMK can't find %s in your path", binary)
             ok = False
+        else:
+            try:
+                subprocess.run([binary, '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, timeout=5, check=True)
+            except subprocess.CalledProcessError:
+                cli.log.error("{fg_red}Can't run `%s --version`", binary)
+                ok = False
 
     OS = platform.system()
     if OS == "Darwin":
         cli.log.info("Detected {fg_cyan}macOS")
     elif OS == "Linux":
         cli.log.info("Detected {fg_cyan}linux")
-        test = 'systemctl list-unit-files | grep enabled | grep -i ModemManager'
-        if os.system(test) == 0:
-            cli.log.warn("{bg_yellow}Detected modem manager. Please disable it if you are using Pro Micros")
+        if shutil.which('systemctl'):
+            test = 'systemctl list-unit-files | grep enabled | grep -i ModemManager'
+            if os.system(test) == 0:
+                cli.log.warn("{bg_yellow}Detected modem manager. Please disable it if you are using Pro Micros")
+        else:
+            cli.log.warn("Can't find systemctl to check for ModemManager.")
     else:
         cli.log.info("Assuming {fg_cyan}Windows")
 
     if ok:
         cli.log.info('{fg_green}QMK is ready to go')
+    else:
+        cli.log.info('{fg_yellow}Problems detected, please fix these problems before proceeding.')
+        # FIXME(skullydazed): Link to a document about troubleshooting, or discord or something

lib/python/qmk/cli/nose2.py

@@ -0,0 +1,18 @@
+"""QMK Python Unit Tests
+
+QMK script to run unit and integration tests against our python code.
+"""
+from milc import cli
+
+
+@cli.entrypoint('QMK Python Unit Tests')
+def main(cli):
+    """Use nose2 to run unittests
+    """
+    try:
+        import nose2
+    except ImportError:
+        cli.log.error('Could not import nose2! Please install it with {fg_cyan}pip3 install nose2')
+        return False
+
+    nose2.discover()