Filter PIO Unit Testing tests using a new test_filter option in "platformio.ini" or platformio test –filter command // Resolve #934

HISTORY.rst

@@ -16,6 +16,10 @@ PlatformIO 3.0
   - Built-in into `PlatformIO IDE for Atom <http://docs.platformio.org/page/ide/atom.html>`__ and `PlatformIO IDE for VScode <http://docs.platformio.org/page/ide/vscode.html>`__
   - Integration with `Eclipse <http://docs.platformio.org/page/ide/eclipse.html>`__ and `Sublime Text <http://docs.platformio.org/page/ide/sublimetext.html>`__
 
+* Filter `PIO Unit Testing <http://docs.platformio.org/page/plus/unit-testing.html>`__
+  tests using a new ``test_filter`` option in `Project Configuration File "platformio.ini" <http://docs.platformio.org/page/projectconf.html>`__
+  or `platformio test --filter <http://docs.platformio.org/page/userguide/cmd_test.html#cmdoption-platformio-test-f>`__ command
+  (`issue #934 <https://github.com/platformio/platformio-core/issues/934>`_)
 * Custom ``test_transport`` for `PIO Unit Testing <http://docs.platformio.org/page/plus/unit-testing.html>`__ Engine
 * Configure Serial Port Monitor in `Project Configuration File "platformio.ini" <http://docs.platformio.org/page/projectconf.html>`__
   (`issue #787 <https://github.com/platformio/platformio-core/issues/787>`_)

platformio/commands/run.py

@@ -134,10 +134,11 @@ class EnvironmentProcessor(object):
                      "debug_extra_cmds", "debug_server", "debug_init_break",
                      "debug_load_cmd")
 
-    IGNORE_BUILD_OPTIONS = ("test_transport", "test_ignore", "test_port",
+    IGNORE_BUILD_OPTIONS = ("test_transport", "test_filter", "test_ignore",
-                            "debug_tool", "debug_port", "debug_init_cmds",
+                            "test_port", "debug_tool", "debug_port",
-                            "debug_extra_cmds", "debug_server",
+                            "debug_init_cmds", "debug_extra_cmds",
-                            "debug_init_break", "debug_load_cmd")
+                            "debug_server", "debug_init_break",
+                            "debug_load_cmd")
 
     REMAPED_OPTIONS = {"framework": "pioframework", "platform": "pioplatform"}
 

platformio/commands/test.py

@@ -22,7 +22,18 @@ from platformio.managers.core import pioplus_call
 
 @click.command("test", short_help="Local Unit Testing")
 @click.option("--environment", "-e", multiple=True, metavar="<environment>")
-@click.option("--ignore", "-i", multiple=True, metavar="<pattern>")
+@click.option(
+    "--filter",
+    "-f",
+    multiple=True,
+    metavar="<pattern>",
+    help="Filter tests by a pattern")
+@click.option(
+    "--ignore",
+    "-i",
+    multiple=True,
+    metavar="<pattern>",
+    help="Ignore tests by a pattern")
 @click.option("--upload-port")
 @click.option("--test-port")
 @click.option(