gcc/testsuite/ada/acats/tests/ca/ca11c02.a

   1 -- CA11C02.A
   2 --
   3 --                             Grant of Unlimited Rights
   4 --
   5 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   6 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   7 --     unlimited rights in the software and documentation contained herein.
   8 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
   9 --     this public release, the Government intends to confer upon all
  10 --     recipients unlimited rights  equal to those held by the Government.
  11 --     These rights include rights to use, duplicate, release or disclose the
  12 --     released technical data and computer software in whole or in part, in
  13 --     any manner and for any purpose whatsoever, and to have or permit others
  14 --     to do so.
  15 --
  16 --                                    DISCLAIMER
  17 --
  18 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  19 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  20 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  21 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  22 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  23 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  24 --*
  25 --
  26 -- OBJECTIVE:
  27 --      Check that primitive operations declared in a child package
  28 --      override operations declared in ancestor packages, and that
  29 --      operations on class-wide types defined in the ancestor packages
  30 --      dispatch as appropriate to these overriding implementations.
  31 --
  32 -- TEST DESCRIPTION:
  33 --
  34 --      This test builds on the foundation code file (FA11C00) that contains
  35 --      a parent package, child package, and grandchild package.  The parent
  36 --      package declares a tagged type and primitive operation.  The child
  37 --      package extends the type, and overrides the primitive operation. The
  38 --      grandchild package does the same.
  39 --
  40 --      The test procedure "withs" the grandchild package, and receives
  41 --      visibility to all of its ancestor packages, types and operations.
  42 --      A procedure with a formal class-wide parameter is defined that will
  43 --      allow for dispatching calls to the overridden primitive operations,
  44 --      based on the specific type of the actual parameter.  The primitive
  45 --      operations provide a string value to update a global string array
  46 --      variable.  Calls to the local procedure are made, with objects of each
  47 --      of the tagged types as parameters, and the global variable is finally
  48 --      examined to ensure that the correct version of primitive operation was
  49 --      dispatched correctly.
  50 --
  51 -- TEST FILES:
  52 --      This test depends on the following foundation code:
  53 --
  54 --         FA11C00.A
  55 --
  56 --
  57 -- CHANGE HISTORY:
  58 --      06 Dec 94   SAIC    ACVC 2.0
  59 --
  60 --!
  61
  62 with FA11C00_0.FA11C00_1.FA11C00_2;    -- Package Animal.Mammal.Primate
  63 with Report;
  64
  65 procedure CA11C02 is
  66
  67    package Animal_Package  renames FA11C00_0;
  68    package Mammal_Package  renames FA11C00_0.FA11C00_1;
  69    package Primate_Package renames FA11C00_0.FA11C00_1.FA11C00_2;
  70
  71    Max_Animals : constant := 3;
  72
  73    type Data_Base_Type is array (1 .. Max_Animals) of String (1 .. 37);
  74
  75    Zoo_Data_Base : Data_Base_Type := (others => (others => ' '));
  76                                       -- Global variable.
  77
  78    Macaw : Animal_Package.Animal   := (Common_Name => "Scarlet Macaw       ",
  79                                        Weight      => 2);
  80
  81    Manatee : Mammal_Package.Mammal := (Common_Name => "Southern Manatee    ",
  82                                        Weight      => 230,
  83                                        Hair_Color  => Mammal_Package.Brown);
  84
  85    Lemur : Primate_Package.Primate :=
  86               (Common_Name => "Ring-Tailed Lemur   ",
  87                Weight      => 5,
  88                Hair_Color  => Mammal_Package.Black,
  89                Habitat     => Primate_Package.Arboreal);
  90 begin
  91
  92    Report.Test ("CA11C02", "Check that primitive operations declared "   &
  93                            "in a child package override operations declared " &
  94                            "in ancestor packages, and that operations " &
  95                            "on class-wide types defined in the ancestor " &
  96                            "packages dispatch as appropriate to these " &
  97                            "overriding implementations");
  98
  99    declare
 100
 101       use Animal_Package, Mammal_Package, Primate_Package;
 102
 103       -- The following procedure updates the global variable Zoo_Data_Base.
 104
 105       procedure Enter_Data (A : Animal'Class; I : Integer) is
 106       begin
 107          Zoo_Data_Base (I) := Image (A);
 108       end Enter_Data;
 109
 110    begin
 111
 112       -- Verify initial test conditions.
 113
 114       if not (Zoo_Data_Base(1)(1..6) = "      ")
 115          or not
 116              (Zoo_Data_Base(2)(1..6) = "      ")
 117          or not
 118              (Zoo_Data_Base(3)(1..6) = "      ")
 119       then
 120          Report.Failed ("Initial condition failure");
 121       end if;
 122
 123
 124       -- Enter data from all three animals into the zoo database.
 125
 126       Enter_Data (Macaw, 1);                 -- First entry in database.
 127       Enter_Data (A => Manatee, I => 2);     -- Second entry.
 128       Enter_Data (Lemur, I => 3);            -- Third entry.
 129
 130       -- Verify the correct version of the overridden function Image was used
 131       -- for entering the specific data.
 132
 133       if not (Zoo_Data_Base(1)(1 .. 6)   = "Animal")
 134         or not
 135              (Zoo_Data_Base(1)(26 .. 30) = "Macaw")
 136         then
 137            Report.Failed ("Incorrect version of Image for parent type");
 138       end if;
 139
 140       if not (Zoo_Data_Base(2)(1 .. 6)   = "Mammal"
 141         and
 142           Zoo_Data_Base(2)(27 .. 33) = "Manatee")
 143         then
 144            Report.Failed ("Incorrect version of Image for child type");
 145       end if;
 146
 147       if not ((Zoo_Data_Base(3)(1 .. 7)   = "Primate")
 148         and
 149           (Zoo_Data_Base(3)(30 .. 34) = "Lemur"))
 150         then
 151            Report.Failed ("Incorrect version of Image for grandchild type");
 152       end if;
 153
 154    end;
 155
 156    Report.Result;
 157
 158 end CA11C02;