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"""
Fixed-Point parameter type testcases - FP32_Q15.16

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

Initial Settings :
------------------
    FP32_Q15.16 :
        - size = 32 bits
        - 15 integer bits, 16 fractionnal bits
        - range : [-32768, 32767.9999847412109375]

Test cases :
------------
    - FP32_Q15.16 parameter min value = -32768
    - FP32_Q15.16 parameter min value out of bounds = -32768.00001
    - FP32_Q15.16 parameter max value = 32767.99998
    - FP32_Q15.16 parameter max value out of bounds = 32767.999985
    - FP32_Q15.16 parameter in nominal case = 12345.12345
"""
import os
import commands
from Util.PfwUnitTestLib import PfwTestCase
from Util import ACTLogging
log=ACTLogging.Logger()

# Test of type FP32_Q15.16 - range [-32768,32767.9999847412109375]
class TestCases(PfwTestCase):
    def setUp(self):
        self.param_name = "/Test/Test/TEST_DIR/FP32_Q15.16"
        self.pfw.sendCmd("setTuningMode", "on")

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

    def test_Nominal_Case(self):
        """
        Testing FP32_Q15.16 in nominal case = 12345.12345
        -------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q15.16 parameter in nominal case = 12345.12345
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q15.16 parameter set to 12345.12345
                - Blackboard and filesystem values checked
        """
        log.D(self.test_Nominal_Case.__doc__)
        log.I("FP32_Q15.16 parameter in nominal case = 12345.12345")
        value = "12345.1234"
        hex_value = "0x30391f97"
        #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, err))
        #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 open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1] == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")


    def test_TypeMin(self):
        """
        Testing FP32_Q15.16 minimal value = -32768
        ------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q15.16 parameter min value = -32768
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q15.16 parameter set to -32768
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin.__doc__)
        log.I("FP32_Q15.16 parameter min value = -32768")
        value = "-32768"
        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),5) == float(value), log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                            % (self.param_name, value, out))
        #Check parameter value on filesystem
        assert open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1] == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMin_Overflow(self):
        """
        Testing FP32_Q15.16 parameter value out of negative range
        ---------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q15.16 to -32768.00001
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP32_Q15.16 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMin_Overflow.__doc__)
        log.I("FP32_Q15.16 parameter min value out of bounds = -32768.000001")
        value = "-32768.00001"
        param_check = open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1]
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value, expectSuccess=False)
        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 open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1] == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")

    def test_TypeMax(self):
        """
        Testing FP32_Q15.16 parameter maximum value
        -------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q15.16 to 32767.99998
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - FP32_Q15.16 parameter set to 32767.99998
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax.__doc__)
        log.I("FP32_Q15.16 parameter max value = 32767.99998")
        value = "32767.99998"
        hex_value = "0x7fffffff"
        #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),5) == float(value), log.F("BLACKBOARD : Incorrect value for %s, expected: %s, found: %s"
                                                          % (self.param_name, value, out))
        #Check parameter value on filesystem
        assert open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1] == hex_value, log.F("FILESYSTEM : parameter update error")
        log.I("test OK")

    def test_TypeMax_Overflow(self):
        """
        Testing FP32_Q15.16 parameter value out of positive range
        ---------------------------------------------------------
            Test case description :
            ~~~~~~~~~~~~~~~~~~~~~~~
                - set FP32_Q15.16 to 32767.999985
            Tested commands :
            ~~~~~~~~~~~~~~~~~
                - [setParameter] function
            Used commands :
            ~~~~~~~~~~~~~~~
                - [getParameter] function
            Expected result :
            ~~~~~~~~~~~~~~~~~
                - error detected
                - FP32_Q15.16 parameter not updated
                - Blackboard and filesystem values checked
        """
        log.D(self.test_TypeMax_Overflow.__doc__)
        log.I("FP32_Q15.16 parameter max value out of bounds = 32767.999985")
        value = "32767.999985"
        param_check = open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1]
        #Set parameter value
        out, err = self.pfw.sendCmd("setParameter", self.param_name, value, expectSuccess=False)
        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 open(os.environ["PFW_RESULT"] + "/FP32_Q15.16").read()[:-1] == param_check, log.F("FILESYSTEM : Forbiden parameter change")
        log.I("test OK")
