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-- CXB4008.A

--

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--                                    DISCLAIMER

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--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED

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--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- OBJECTIVE:

--      Check that the function To_Decimal with Binary parameter will return

--      the corresponding value of the decimal type Num.

--

--      Check that the function To_Decimal with Long_Binary parameter will

--      return the corresponding value of the decimal type Num.

--

--      Check that both of the To_Decimal functions described above will

--      propagate Conversion_Error if the converted value Item is outside

--      the range of type Num.

--

--      Check that the function To_Binary converts a value of the Ada

--      decimal type Num into a Binary type value.

--

--      Check that the function To_Long_Binary converts a value of the Ada

--      decimal type Num into a Long_Binary type value.

--

-- TEST DESCRIPTION:

--      This test uses several instantiations of generic package

--      Decimal_Conversions to provide appropriate test material.

--      Two of the instantiations use decimal types as generic actuals

--      that include the implementation defined constants Max_Digits_Binary

--      and Max_Digits_Long_Binary in their definition.

--

--      Subtests are included for both versions of function To_Decimal,

--      (Binary and Long_Binary parameters), and include checks that

--      Conversion_Error is propagated under the appropriate circumstances.

--      Functions To_Binary and To_Long_Binary are "sanity" checked, to

--      ensure that the functions are available, and that the results are

--      appropriate based on their parameter input.

--

-- APPLICABILITY CRITERIA:

--      This test is applicable to all implementations that provide

--      package Interfaces.COBOL.  If an implementation provides

--      package Interfaces.COBOL, this test must compile, execute, and

--      report "PASSED".

--

--

-- CHANGE HISTORY:

--      21 Feb 96   SAIC    Initial release for 2.1.

--      10 Jun 96   SAIC    Incorporated reviewer comments for ACVC 2.1.

--      27 Oct 96   SAIC    Incorporated reviewer comments.

--

--!

with Report;

with Ada.Exceptions;

with Interfaces.COBOL;                                          -- N/A => ERROR

procedure CXB4008 is

begin

   Report.Test ("CXB4008", "Check that functions To_Decimal, To_Binary, and " &

                           "To_Long_Binary produce the correct results");

   Test_Block:

   declare

      use Interfaces.COBOL;

      use Ada.Exceptions;

      use type Interfaces.COBOL.Numeric;

      type Decimal_Type_1 is delta 0.1    digits  6;

      type Decimal_Type_2 is delta 0.01   digits Max_Digits_Binary;

      type Decimal_Type_3 is delta 0.001  digits 10;

      type Decimal_Type_4 is delta 0.0001 digits Max_Digits_Long_Binary;

      package Pack_1 is new Decimal_Conversions(Decimal_Type_1);

      package Pack_2 is new Decimal_Conversions(Decimal_Type_2);

      package Pack_3 is new Decimal_Conversions(Decimal_Type_3);

      package Pack_4 is new Decimal_Conversions(Decimal_Type_4);

      TC_Dec_1       : Decimal_Type_1 := 12345.0;

      TC_Dec_2       : Decimal_Type_2 := 123456.00;

      TC_Dec_3       : Decimal_Type_3 := 1234567.000;

      TC_Dec_4       : Decimal_Type_4 := 12345678.0000;

      TC_Binary      : Interfaces.COBOL.Binary;

      TC_Long_Binary : Interfaces.COBOL.Long_Binary;

   begin

      -- Check that the function To_Decimal with Binary parameter will

      -- return the corresponding value of the decimal type Num.

      if Pack_1.To_Decimal(Item => Pack_1.To_Binary(TC_Dec_1)) /= TC_Dec_1 or

         Pack_2.To_Decimal(Pack_2.To_Binary(TC_Dec_2))         /= TC_Dec_2

      then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Binary parameter - 1");

      end if;

      if Pack_1.To_Decimal(Item => Pack_1.To_Binary(1234.0)) /= 1234.0 then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Binary parameter - 2");

      end if;

      TC_Binary := Pack_2.To_Binary(TC_Dec_2);

      if Pack_2.To_Decimal(TC_Binary) /= TC_Dec_2 then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Binary parameter - 3");

      end if;

      -- Check that the function To_Decimal with Long_Binary parameter

      -- will return the corresponding value of the decimal type Num.

      if Pack_3.To_Decimal(Item => Pack_3.To_Long_Binary(TC_Dec_3)) /=

         TC_Dec_3                                                      or

         Pack_4.To_Decimal(Pack_4.To_Long_Binary(TC_Dec_4))         /=

         TC_Dec_4

      then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Long_Binary parameter - 1");

      end if;

      if Pack_3.To_Decimal(Pack_3.To_Long_Binary(1234567.0)) /= 1234567.0 then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Long_Binary parameter - 2");

      end if;

      TC_Long_Binary := Pack_4.To_Long_Binary(TC_Dec_4);

      if Pack_4.To_Decimal(TC_Long_Binary) /= TC_Dec_4 then

         Report.Failed("Incorrect result from function To_Decimal with " &

                       "Long_Binary parameter - 3");

      end if;

      -- Check that both of the To_Decimal functions described above

      -- will propagate Conversion_Error if the converted value Item is

      -- outside the range of type Num.

      -- Note: Binary/Long_Binary parameter values are created by an

      --       instantiation of To_Binary/To_Long_Binary with a larger

      --       Num type as the generic formal.

      Binary_Parameter:

      begin

         TC_Dec_1 := Pack_1.To_Decimal(Pack_2.To_Binary(123456.78));

         Report.Failed("Conversion_Error was not raised by function " &

                       "To_Decimal with Binary parameter, when the "  &

                       "converted value Item was outside the range "  &

                       "of type Num");

         if TC_Dec_1 = 12345.6 then  -- Avoid dead assignment optimization.

            Report.Comment("Should never be printed");

         end if;

      exception

         when Conversion_Error   => null;  -- OK, expected exception.

         when The_Error : others =>

            Report.Failed(Ada.Exceptions.Exception_Name(The_Error) & " "   &

                          "was incorrectly raised by function To_Decimal " &

                          "with Binary parameter, when the converted "     &

                          "value Item was outside the range of type Num");

      end Binary_Parameter;

      Long_Binary_Parameter:

      begin

         TC_Dec_3 := Pack_3.To_Decimal(Pack_4.To_Long_Binary(TC_Dec_4));

         Report.Failed("Conversion_Error was not raised by function "     &

                       "To_Decimal with Long_Binary parameter, when "     &

                       "the converted value Item was outside the range "  &

                       "of type Num");

         if TC_Dec_3 = 123456.78 then  -- Avoid dead assignment optimization.

            Report.Comment("Should never be printed");

         end if;

      exception

         when Conversion_Error   => null;  -- OK, expected exception.

         when The_Error : others =>

            Report.Failed(Ada.Exceptions.Exception_Name(The_Error) & " "    &

                          "was incorrectly raised by function To_Decimal "  &

                          "with Long_Binary parameter, when the converted " &

                          "value Item was outside the range of type Num");

      end Long_Binary_Parameter;

      -- Check that the function To_Binary converts a value of the Ada

      -- decimal type Num into a Binary type value.

      TC_Dec_1 := 123.4;

      TC_Dec_2 := 9.99;

      if Pack_1.To_Binary(TC_Dec_1) = Pack_1.To_Binary(-TC_Dec_1) or

         Pack_2.To_Binary(TC_Dec_2) = Pack_2.To_Binary(-TC_Dec_2)

      then

         Report.Failed("Incorrect result from function To_Binary - 1");

      end if;

      if Pack_1.To_Binary(1.1)     = Pack_1.To_Binary(-1.1)      or

         Pack_2.To_Binary(9999.99) = Pack_2.To_Binary(-9999.99)

      then

         Report.Failed("Incorrect result from function To_Binary - 2");

      end if;

      -- Check that the function To_Long_Binary converts a value of the

      -- Ada decimal type Num into a Long_Binary type value.

      TC_Dec_3 := 9.001;

      TC_Dec_4 := 123.4567;

      if Pack_3.To_Long_Binary(TC_Dec_3) = Pack_3.To_Long_Binary(-TC_Dec_3) or

         Pack_4.To_Long_Binary(TC_Dec_4) = Pack_4.To_Long_Binary(-TC_Dec_4)

      then

         Report.Failed("Incorrect result from function To_Long_Binary - 1");

      end if;

      if Pack_3.To_Long_Binary(1.011)        =

         Pack_3.To_Long_Binary(-1.011)         or

         Pack_4.To_Long_Binary(2345678.9012) =

         Pack_4.To_Long_Binary(-2345678.9012)

      then

         Report.Failed("Incorrect result from function To_Long_Binary - 2");

      end if;

   exception

      when The_Error : others =>

         Report.Failed("The following exception was raised in the " &

                       "Test_Block: " & Exception_Name(The_Error));

   end Test_Block;

   Report.Result;

end CXB4008;