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"""
Fixed-Point parameter type testcases - FP16_Q0.15

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

Initial Settings :
------------------
    FP16_Q0.15 :
        - size = 16 bits
        - 0 integer bits, 15 fractionnal bits
        - range : [-1, 0.999969]

Test cases :
------------
    - FP16_Q0.15 parameter min value = -1
    - FP16_Q0.15 parameter min value out of bounds = -1.00001
    - FP16_Q0.15 parameter max value = 0.999969
    - FP16_Q0.15 parameter max value out of bounds = 0.99997
    - FP16_Q0.15 parameter in nominal case = 0.2453
"""
import commands
from Util.PfwUnitTestLib import PfwTestCase
from Util import ACTLogging
log=ACTLogging.Logger()

# Test of type FP16_Q0.15 - range [-1, 0.999969]
class TestCases(PfwTestCase):
    def setUp(self):
        self.param_name = "/Test/Test/TEST_DIR/FP16_Q0.15"
        self.pfw.sendCmd("setTuningMode", "on")
        self.type_name = "FP16_Q0.15"

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

    def test_Nominal_Case(self):
        """
        Testing FP16_Q0.15 in nominal case = 0.2453
        -------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP16_Q0.15 parameter in nominal case = 0.2453
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP16_Q0.15 parameter set to 0.2453
                - Blackboard and filesystem values checked
        """
        log.D(self.test_Nominal_Case.__doc__)
        value = "0.2453"
        hex_value = "0x1f66"
        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 round(float(out),4) == 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/FP16_Q0.15') == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin(self):
        """
        Testing FP16_Q0.15 minimal value = -1
        -------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP16_Q0.15 parameter min value = -1
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP16_Q0.15 parameter set to -1
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin.__doc__)
        value = "-1"
        hex_value = "0x8000"
        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 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/FP16_Q0.15') == hex_value, "FILESYSTEM : parameter update error"
        log.I("test OK")

    def test_TypeMin_Overflow(self):
        """
        Testing FP16_Q0.15 parameter value out of negative range
        --------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP16_Q0.15 to -1.00001
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP16_Q0.15 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin_Overflow.__doc__)
        value = "-1.00001"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP16_Q0.15')
        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("Error not detected when setting parameter %s out of bounds" % (self.param_name))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP16_Q0.15') == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")

    def test_TypeMax(self):
        """
        Testing FP16_Q0.15 parameter maximum value
        ------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP16_Q0.15 to 0.999969
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP16_Q0.15 parameter set to 0.999969
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax.__doc__)
        value = "0.999969"
        hex_value = "0x7fff"
        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 round(float(out), 6) == float(value), log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                           % (self.param_name, value, round(float(out), 5)))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP16_Q0.15') == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMax_Overflow(self):
        """
        Testing FP16_Q0.15 parameter value out of positive range
        --------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP16_Q0.15 to 0.99997
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP16_Q0.15 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax_Overflow.__doc__)
        value = "0.99997"
        param_check = commands.getoutput('cat $PFW_FILESYSTEM/FP16_Q0.15')
        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("Error not detected when setting parameter %s out of bounds" % (self.param_name))
        #Check parameter value on filesystem
        assert commands.getoutput('cat $PFW_FILESYSTEM/FP16_Q0.15') == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")