1-- CA11C02.A
2--
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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
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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
62with FA11C00_0.FA11C00_1.FA11C00_2;    -- Package Animal.Mammal.Primate
63with Report;
64
65procedure 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);
90begin
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
158end CA11C02;
159