1-- CA11C01.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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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 when primitive operations declared in a child package
28--      override operations declared in ancestor packages, a client of the
29--      child package inherits the operations correctly.
30--
31-- TEST DESCRIPTION:
32--
33--      This test builds on the foundation code file (FA11C00) that contains
34--      a parent package, child package, and grandchild package.  The parent
35--      package declares a tagged type and primitive operation.  The child
36--      package extends the type, and overrides the primitive operation. The
37--      grandchild package does the same.
38--
39--      The test procedure "withs" the grandchild package, and receives
40--      visibility to all of its ancestor packages, types and operations.
41--      Three procedures, each with a formal parameter of a specific type are
42--      defined.  Each of these invokes a particular version of the overridden
43--      primitive operation Image.  Calls to these local procedures are made,
44--      with objects of each of the tagged types as parameters, and the global
45--      variable is finally examined to ensure that the correct version of
46--      primitive operation was inherited by the client and invoked by the
47--      call.
48--
49-- TEST FILES:
50--      This test depends on the following foundation code:
51--
52--         FA11C00.A
53--
54--
55-- CHANGE HISTORY:
56--      06 Dec 94   SAIC    ACVC 2.0
57--
58--!
59
60with FA11C00_0.FA11C00_1.FA11C00_2;    -- Package Animal.Mammal.Primate
61with Report;
62
63procedure CA11C01 is
64
65   package Animal_Package  renames FA11C00_0;
66   package Mammal_Package  renames FA11C00_0.FA11C00_1;
67   package Primate_Package renames FA11C00_0.FA11C00_1.FA11C00_2;
68
69   Max_Animals : constant := 3;
70
71   subtype Data_String is String (1 .. 37);
72   type Data_Base_Type is array  (1 .. Max_Animals) of Data_String;
73
74   Zoo_Data_Base : Data_Base_Type := (others => (others => ' '));
75                                      -- Global variable.
76
77   Salmon   : Animal_Package.Animal := (Common_Name => "Chinook Salmon      ",
78                                        Weight      => 10);
79
80   Platypus : Mammal_Package.Mammal := (Common_Name => "Tasmanian Platypus  ",
81                                        Weight      => 13,
82                                        Hair_Color  => Mammal_Package.Brown);
83
84   Orangutan : Primate_Package.Primate :=
85                 (Common_Name => "Sumatran Orangutan  ",
86                  Weight      => 220,
87                  Hair_Color  => Mammal_Package.Red,
88                  Habitat     => Primate_Package.Arboreal);
89begin
90
91   Report.Test ("CA11C01", "Check that when primitive operations declared "   &
92                           "in a child package override operations declared " &
93                           "in ancestor packages, a client of the child "     &
94                           "package inherits the operations correctly");
95
96   declare
97
98      use Animal_Package, Mammal_Package, Primate_Package;
99
100      -- The function Image has been overridden in the child and grandchild
101      -- packages, but the client has inherited all versions of the function,
102      -- and can successfully use them to enter data into the database.
103      -- Each of the following procedures updates the global variable
104      -- Zoo_Data_Base.
105
106      procedure Enter_Animal_Data (A : Animal; I : Integer) is
107      begin
108         Zoo_Data_Base (I) := Image (A);
109      end Enter_Animal_Data;
110
111      procedure Enter_Mammal_Data (M : Mammal; I : Integer) is
112      begin
113         Zoo_Data_Base (I) := Image (M);
114      end Enter_Mammal_Data;
115
116      procedure Enter_Primate_Data (P : Primate; I : Integer) is
117      begin
118         Zoo_Data_Base (I) := Image (P);
119      end Enter_Primate_Data;
120
121   begin
122
123      -- Verify initial test conditions.
124
125      if not (Zoo_Data_Base(1)(1..6) = "      ")
126         or else
127             (Zoo_Data_Base(2)(1..6) /= "      ")
128         or else
129             (Zoo_Data_Base(3)(1..6) /= "      ")
130      then
131         Report.Failed ("Initial condition failure");
132      end if;
133
134
135      -- Enter data from all three animals into the zoo database.
136
137      Enter_Animal_Data  (A => Salmon,    I => 1);  -- First entry in database.
138      Enter_Mammal_Data  (M => Platypus,  I => 2);  -- Second entry.
139      Enter_Primate_Data (P => Orangutan, I => 3);  -- Third entry.
140
141      -- Verify the correct version of the overridden function Image was used
142      -- for entering the specific data.
143
144      if  Zoo_Data_Base(1)(1 .. 6) /= "Animal"
145        or else
146          Zoo_Data_Base(1)(26 .. 31) /= "Salmon"
147        then
148           Report.Failed ("Incorrect version of Image for parent type");
149      end if;
150
151      if (Zoo_Data_Base(2)(1 .. 6) /= "Mammal")
152        or
153          (Zoo_Data_Base(2)(28 .. 35) /= "Platypus")
154        then
155           Report.Failed ("Incorrect version of Image for child type");
156      end if;
157
158      if ((Zoo_Data_Base(3)(1 .. 7) /= "Primate")
159        or
160          (Zoo_Data_Base(3)(27 .. 35) /= "Orangutan"))
161        then
162           Report.Failed ("Incorrect version of Image for grandchild type");
163      end if;
164
165   end;
166
167
168   Report.Result;
169
170end CA11C01;
171