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"""
Fixed-Point parameter type testcases - FP8_Q7.0

List of tested functions :
--------------------------
    - [setParameter]  function
    - [getParameter] function

Initial Settings :
------------------
    FP8_Q7.0 :
        - size = 8 bits
        - 7 integer bits, 0 fractionnal bits
        - range : [-128, 127]

Test cases :
------------
    - FP8_Q7.0 parameter min value = -128
    - FP8_Q7.0 parameter min value out of bounds = -128.1
    - FP8_Q7.0 parameter max value = 127
    - FP8_Q7.0 parameter max value out of bounds = 127.1
    - FP8_Q7.0 parameter in nominal case = 64
"""
import commands
from Util.PfwUnitTestLib import PfwTestCase
from Util import ACTLogging
log=ACTLogging.Logger()

# Test of type FP8_Q7.0 - range [-128,127]
class TestCases(PfwTestCase):
    def setUp(self):
        self.param_name = "/Test/Test/TEST_DIR/FP8_Q7.0"
        self.pfw.sendCmd("setTuningMode", "on")
        self.type_name = "FP8_Q7.0"

    def tearDown(self):
        self.pfw.sendCmd("setTuningMode", "off")

    def test_Nominal_Case(self):
        """
        Testing FP8_Q7.0 in nominal case = 64
        -------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP8_Q7.0 parameter in nominal case = 64
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP8_Q7.0 parameter set to 64
                - Blackboard and filesystem values checked
        """
        log.D(self.test_Nominal_Case.__doc__)
        value = "64"
        hex_value = "0x40"
        log.I("Setting %s to value %s" % (self.type_name, value))
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value)
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert out == "Done", log.F("when setting parameter %s : %s"
                                  % (self.param_name, out))
        #Check parameter value on blackboard
        out, err = self.pfw.sendCmd("getParameter", self.param_name, "")
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert float(out) == float(value),  log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                  % (self.param_name, value, out))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0') == hex_value,  log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin(self):
        """
        Testing FP8_Q7.0 minimal value = -128
        -------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP8_Q7.0 parameter min value = -128
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP8_Q7.0 parameter set to -128
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin.__doc__)
        value = "-128"
        hex_value = "0x80"
        log.I("Setting %s to value %s" % (self.type_name, value))
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value)
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert out == "Done", log.F("when setting parameter %s : %s"
                                  % (self.param_name, out))
        #Check parameter value on blackboard
        out, err = self.pfw.sendCmd("getParameter", self.param_name, "")
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert float(out) == float(value),  log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                  % (self.param_name, value, out))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0') == hex_value,  log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin_Overflow(self):
        """
        Testing FP8_Q7.0 parameter value out of negative range
        ------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP8_Q7.0 to -128.1
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP8_Q7.0 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin_Overflow.__doc__)
        value = "-128.1"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0')
        log.I("Setting %s to value %s" % (self.type_name, value))
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value)
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert out != "Done",  log.F("PFW : Error not detected when setting parameter %s out of bounds"
                                     % (self.param_name))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0') == param_check,  log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")

    def test_TypeMax(self):
        """
        Testing FP8_Q7.0 parameter maximum value
        ----------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP8_Q7.0 to 127
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP8_Q7.0 parameter set to 127
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax.__doc__)
        value = "127"
        hex_value = "0x7f"
        log.I("Setting %s to value %s" % (self.type_name, value))
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value)
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert out == "Done", log.F("when setting parameter %s : %s"
                                  % (self.param_name, out))
        #Check parameter value on blackboard
        out, err = self.pfw.sendCmd("getParameter", self.param_name, "")
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert float(out) == float(value),  log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                  % (self.param_name, value, out))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0') == hex_value,  log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMax_Overflow(self):
        """
        Testing FP8_Q7.0 parameter value out of positive range
        ------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP8_Q7.0 to 127.1
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP8_Q7.0 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax_Overflow.__doc__)
        value = "127.1"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0')
        log.I("Setting %s to value %s" % (self.type_name, value))
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value)
        assert err == None, log.E("when setting parameter %s : %s"
                                  % (self.param_name, err))
        assert out != "Done",  log.F("PFW : Error not detected when setting parameter %s out of bounds"
                                     % (self.param_name))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP8_Q7.0') == param_check,  log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")