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"""
Fixed-Point parameter type testcases - FP32_Q8.20

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

Initial Settings :
------------------
    FP32_Q8.20 :
        - size = 32 bits
        - 8 integer bits, 20 fractionnal bits
        - range : [-256, 255.999999]

Test cases :
------------
    - FP32_Q8.20 parameter min value = -256
    - FP32_Q8.20 parameter min value out of bounds = -500
    - FP32_Q8.20 parameter max value = 255.999999
    - FP32_Q8.20 parameter max value out of bounds = 3200.8888
    - FP32_Q8.20 parameter in nominal case = -128.123456
"""
import commands
from Util.PfwUnitTestLib import PfwTestCase
from Util import ACTLogging
log=ACTLogging.Logger()

# Test of type FP32_Q8.20 - range [-256,255,999999046]
class TestCases(PfwTestCase):
    def setUp(self):
        self.param_name = "/Test/Test/TEST_DIR/FP32_Q8.20"
        self.pfw.sendCmd("setTuningMode", "on")

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

    def test_Nominal_Case(self):
        """
        Testing FP32_Q8.20 in nominal case = -128.123456
        ------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q8.20 parameter in nominal case = -128.123456
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q8.20 parameter set to -128.123456
                - Blackboard and filesystem values checked
        """
        log.D(self.test_Nominal_Case.__doc__)
        log.I("FP32_Q8.20 parameter in nominal case = -128.123456")
        value = "-128.123456"
        hex_value = "0xbff03298"
        #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 round(float(out),6) == 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/FP32_Q8.20') == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin(self):
        """
        Testing FP32_Q8.20 minimal value = -256
        ---------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q8.20 parameter min value = -256
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q8.20 parameter set to -256
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin.__doc__)
        log.I("FP32_Q8.20 parameter min value = -256")
        value = "-256"
        hex_value = "0x80000000"
        #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 round(float(out),6) == 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/FP32_Q8.20') == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin_Overflow(self):
        """
        Testing FP32_Q8.20 parameter value out of negative range
        --------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q8.20 to -500
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP32_Q8.20 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin_Overflow.__doc__)
        log.I("FP32_Q8.20 parameter min value out of bounds = -500")
        value = "-500"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP32_Q8.20')
        #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/FP32_Q8.20') == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")

    def test_TypeMax(self):
        """
        Testing FP32_Q8.20 parameter maximum value
        ------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q8.20 to 255.999999
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q8.20 parameter set to 255.999999
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax.__doc__)
        log.I("FP32_Q8.20 parameter max value = 255.999999")
        value = "255.999999"
        hex_value = "0x7ffffff8"
        #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 round(float(out),6) == 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/FP32_Q8.20') == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMax_Overflow(self):
        """
        Testing FP32_Q8.20 parameter value out of positive range
        --------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q8.20 to 3200.8888
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP32_Q8.20 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax_Overflow.__doc__)
        log.I("FP32_Q8.20 parameter max value out of bounds = 3200.8888")
        value = "3200.8888"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP32_Q8.20')
        #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/FP32_Q8.20') == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")