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-- CA11C01.A

--

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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making

--     this public release, the Government intends to confer upon all

--     recipients unlimited rights  equal to those held by the Government.

--     These rights include rights to use, duplicate, release or disclose the

--     released technical data and computer software in whole or in part, in

--     any manner and for any purpose whatsoever, and to have or permit others

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

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

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- OBJECTIVE:

--      Check that when primitive operations declared in a child package

--      override operations declared in ancestor packages, a client of the

--      child package inherits the operations correctly.

--

-- TEST DESCRIPTION:

--

--      This test builds on the foundation code file (FA11C00) that contains

--      a parent package, child package, and grandchild package.  The parent

--      package declares a tagged type and primitive operation.  The child

--      package extends the type, and overrides the primitive operation. The

--      grandchild package does the same.

--

--      The test procedure "withs" the grandchild package, and receives

--      visibility to all of its ancestor packages, types and operations.

--      Three procedures, each with a formal parameter of a specific type are

--      defined.  Each of these invokes a particular version of the overridden

--      primitive operation Image.  Calls to these local procedures are made,

--      with objects of each of the tagged types as parameters, and the global

--      variable is finally examined to ensure that the correct version of

--      primitive operation was inherited by the client and invoked by the

--      call.

--

-- TEST FILES:

--      This test depends on the following foundation code:

--

--         FA11C00.A

--

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--

--!

with FA11C00_0.FA11C00_1.FA11C00_2;    -- Package Animal.Mammal.Primate

with Report;

procedure CA11C01 is

   package Animal_Package  renames FA11C00_0;

   package Mammal_Package  renames FA11C00_0.FA11C00_1;

   package Primate_Package renames FA11C00_0.FA11C00_1.FA11C00_2;

   Max_Animals : constant := 3;

   subtype Data_String is String (1 .. 37);

   type Data_Base_Type is array  (1 .. Max_Animals) of Data_String;

   Zoo_Data_Base : Data_Base_Type := (others => (others => ' '));

                                      -- Global variable.

   Salmon   : Animal_Package.Animal := (Common_Name => "Chinook Salmon      ",

                                        Weight      => 10);

   Platypus : Mammal_Package.Mammal := (Common_Name => "Tasmanian Platypus  ",

                                        Weight      => 13,

                                        Hair_Color  => Mammal_Package.Brown);

   Orangutan : Primate_Package.Primate :=

                 (Common_Name => "Sumatran Orangutan  ",

                  Weight      => 220,

                  Hair_Color  => Mammal_Package.Red,

                  Habitat     => Primate_Package.Arboreal);

begin

   Report.Test ("CA11C01", "Check that when primitive operations declared "   &

                           "in a child package override operations declared " &

                           "in ancestor packages, a client of the child "     &

                           "package inherits the operations correctly");

   declare

      use Animal_Package, Mammal_Package, Primate_Package;

      -- The function Image has been overridden in the child and grandchild

      -- packages, but the client has inherited all versions of the function,

      -- and can successfully use them to enter data into the database.

      -- Each of the following procedures updates the global variable

      -- Zoo_Data_Base.

      procedure Enter_Animal_Data (A : Animal; I : Integer) is

      begin

         Zoo_Data_Base (I) := Image (A);

      end Enter_Animal_Data;

      procedure Enter_Mammal_Data (M : Mammal; I : Integer) is

      begin

         Zoo_Data_Base (I) := Image (M);

      end Enter_Mammal_Data;

      procedure Enter_Primate_Data (P : Primate; I : Integer) is

      begin

         Zoo_Data_Base (I) := Image (P);

      end Enter_Primate_Data;

   begin

      -- Verify initial test conditions.

      if not (Zoo_Data_Base(1)(1..6) = "      ")

         or else

             (Zoo_Data_Base(2)(1..6) /= "      ")

         or else

             (Zoo_Data_Base(3)(1..6) /= "      ")

      then

         Report.Failed ("Initial condition failure");

      end if;

      -- Enter data from all three animals into the zoo database.

      Enter_Animal_Data  (A => Salmon,    I => 1);  -- First entry in database.

      Enter_Mammal_Data  (M => Platypus,  I => 2);  -- Second entry.

      Enter_Primate_Data (P => Orangutan, I => 3);  -- Third entry.

      -- Verify the correct version of the overridden function Image was used

      -- for entering the specific data.

      if  Zoo_Data_Base(1)(1 .. 6) /= "Animal"

        or else

          Zoo_Data_Base(1)(26 .. 31) /= "Salmon"

        then

           Report.Failed ("Incorrect version of Image for parent type");

      end if;

      if (Zoo_Data_Base(2)(1 .. 6) /= "Mammal")

        or

          (Zoo_Data_Base(2)(28 .. 35) /= "Platypus")

        then

           Report.Failed ("Incorrect version of Image for child type");

      end if;

      if ((Zoo_Data_Base(3)(1 .. 7) /= "Primate")

        or

          (Zoo_Data_Base(3)(27 .. 35) /= "Orangutan"))

        then

           Report.Failed ("Incorrect version of Image for grandchild type");

      end if;

   end;

   Report.Result;

end CA11C01;