Fix broken Unit Testing

platformio/__init__.py

@@ -14,7 +14,7 @@
 
 import sys
 
-VERSION = (3, 0, "0b1")
+VERSION = (3, 0, "0b2")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"

platformio/builder/main.py

@@ -18,8 +18,9 @@ from os import environ
 from os.path import join
 from time import time
 
-from SCons.Script import (ARGUMENTS, COMMAND_LINE_TARGETS,
-                          AllowSubstExceptions, DefaultEnvironment, Variables)
+from SCons.Script import (ARGUMENTS, COMMAND_LINE_TARGETS, DEFAULT_TARGETS,
+                          AllowSubstExceptions, AlwaysBuild,
+                          DefaultEnvironment, Variables)
 
 from platformio import util
 
@@ -127,6 +128,8 @@ env.SConscriptChdir(0)
 env.SConsignFile(join("$PROJECTPIOENVS_DIR", ".sconsign.dblite"))
 env.SConscript("$BUILD_SCRIPT")
 
+AlwaysBuild(env.Alias("test", DEFAULT_TARGETS + ["size"]))
+
 if "UPLOAD_FLAGS" in env:
     env.Append(UPLOADERFLAGS=["$UPLOAD_FLAGS"])
 

platformio/commands/test.py

@@ -16,7 +16,7 @@
 
 from fnmatch import fnmatch
 from os import getcwd, listdir
-from os.path import isdir, join
+from os.path import isdir, isfile, join
 from time import sleep, time
 
 import click
@@ -173,6 +173,8 @@ class LocalTestProcessor(TestProcessorBase):
     def run(self):
         with util.cd(self.options['project_dir']):
             pioenvs_dir = util.get_projectpioenvs_dir()
+        program_path = join(pioenvs_dir, self.env_name, "program")
+        assert isfile(program_path)
         result = util.exec_command(
             [join(pioenvs_dir, self.env_name, "program")],
             stdout=util.AsyncPipe(self.on_run_out),