Merge "Add logic to actually read OBD2 sensor properties to VehicleHidlTest" (310d4b32) · Commits · e / os / android_hardware_interfaces

vehicle/2.0/vts/functional/vts/testcases/hal/vehicle/hidl/host/VehicleHidlTest.py

+72 −2

Original line number	Diff line number	Diff line
		@@ -108,19 +108,89 @@ class VehicleHidlTest(base_test_with_webdb.BaseTestWithWebDbClass):
		break
		return isLiveSupported, isFreezeSupported

		def readVhalProperty(self, propertyId, areaId=0):
		"""Reads a specified property from Vehicle HAL.

		Args:
		propertyId: the numeric identifier of the property to be read.
		areaId: the numeric identifier of the vehicle area to retrieve the
		property for. 0, or omitted, for global.

		Returns:
		the value of the property as read from Vehicle HAL, or None
		if it could not read successfully.
		"""
		vp_dict = {
		'prop' : propertyId,
		'timestamp' : 0,
		'areaId' : areaId,
		'value' : {
		'int32Values' : [],
		'floatValues' : [],
		'int64Values' : [],
		'bytes' : [],
		'stringValue' : ""
		}
		}
		vp = self.vtypes.Py2Pb("VehiclePropValue", vp_dict)
		status, value = self.vehicle.get(vp)
		if self.vtypes.OK == status:
		return value
		else:
		logging.warning("attempt to read property %s returned error %d",
		propertyId, status)

		def testObd2SensorProperties(self):
		"""Test reading the live and freeze OBD2 frame properties.

		OBD2 (On-Board Diagnostics 2) is the industry standard protocol
		for retrieving diagnostic sensor information from vehicles.
		"""
		class CheckRead(object):
		"""This class wraps the logic of an actual property read.

		Attributes:
		testobject: the test case this object is used on behalf of.
		propertyId: the identifier of the Vehiche HAL property to read.
		name: the engineer-readable name of this test operation.
		"""

		def __init__(self, testobject, propertyId, name):
		self.testobject = testobject
		self.propertyId = propertyId
		self.name = name

		def onReadSuccess(self, propValue):
		"""Override this to perform any post-read validation.

		Args:
		propValue: the property value obtained from Vehicle HAL.
		"""
		pass

		def __call__(self):
		"""Reads the specified property and validates the result."""
		propValue = self.testobject.readVhalProperty(self.propertyId)
		asserts.assertNotEqual(propValue, None,
		msg="reading %s should not return None" %
		self.name)
		logging.info("%s = %s", self.name, propValue)
		self.onReadSuccess(propValue)
		logging.info("%s pass" % self.name)

		def checkLiveFrameRead():
		"""Validates reading the OBD2_LIVE_FRAME (if available)."""
		logging.info("checkLiveFrameRead no-op pass")
		checker = CheckRead(self,
		self.vtypes.OBD2_LIVE_FRAME,
		"OBD2_LIVE_FRAME")
		checker()

		def checkFreezeFrameRead():
		"""Validates reading the OBD2_FREEZE_FRAME (if available)."""
		logging.info("checkLiveFrameRead no-op pass")
		checker = CheckRead(self,
		self.vtypes.OBD2_FREEZE_FRAME,
		"OBD2_FREEZE_FRAME")
		checker()

		isLiveSupported, isFreezeSupported = self.getSupportInfo()
		logging.info("isLiveSupported = %s, isFreezeSupported = %s",