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1 294 jeremybenn
-- CXB4004.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 function Length, with Display_Format parameter, will
28
--      return the minimal length of a Numeric value that will be required
29
--      to hold the largest value of type Num represented as Format.
30
--
31
--      Check that function To_Decimal will produce a decimal type Num
32
--      result that corresponds to parameter Item as represented by
33
--      parameter Format.
34
--
35
--      Check that function To_Decimal propagates Conversion_Error when
36
--      the value represented by parameter Item is outside the range of
37
--      the Decimal_Type Num used to instantiate the package
38
--      Decimal_Conversions
39
--
40
--      Check that function To_Display returns a Numeric type result that
41
--      represents Item under the specific Display_Format.
42
--
43
--      Check that function To_Display propagates Conversion_Error when
44
--      parameter Item is negative and the specified Display_Format
45
--      parameter is Unsigned.
46
--
47
-- TEST DESCRIPTION:
48
--      This test checks the results from instantiated versions of three
49
--      functions within generic package Interfaces.COBOL.Decimal_Conversions.
50
--      This generic package is instantiated twice, with decimal types having
51
--      four and ten digits representation.
52
--      The function Length is validated with the Unsigned, Leading_Separate,
53
--      and Trailing_Separate Display_Format specifiers.
54
--      The results of function To_Decimal are verified in cases where it
55
--      is given a variety of Numeric and Display_Format type parameters.
56
--      Function To_Decimal is also checked to propagate Conversion_Error
57
--      when the value represented by parameter Item is outside the range
58
--      of the type used to instantiate the package.
59
--      The results of function To_Display are verified in cases where it
60
--      is given a variety of Num and Display_Format parameters.  It is also
61
--      checked to ensure that it propagates Conversion_Error if parameter
62
--      Num is negative and the Format parameter is Unsigned.
63
--
64
--      This test assumes that the following characters are all included
65
--      in the implementation defined type Interfaces.COBOL.COBOL_Character:
66
--      ' ', '0'..'9', '+', '-', and '.'.
67
--
68
-- APPLICABILITY CRITERIA:
69
--      This test is applicable to all implementations that provide
70
--      package Interfaces.COBOL.  If an implementation provides
71
--      package Interfaces.COBOL, this test must compile, execute, and
72
--      report "PASSED".
73
--
74
--
75
-- CHANGE HISTORY:
76
--      06 Feb 96   SAIC    Initial release for 2.1.
77
--      30 May 96   SAIC    Incorporated reviewer comments for ACVC 2.1.
78
--      27 Oct 96   SAIC    Incorporated reviewer comments.
79
--
80
--!
81
 
82
with Report;
83
with Interfaces.COBOL;                                          -- N/A => ERROR
84
with Ada.Exceptions;
85
 
86
procedure CXB4004 is
87
begin
88
 
89
   Report.Test ("CXB4004", "Check that the functions Length, To_Decimal, " &
90
                           "and To_Display produce correct results");
91
 
92
   Test_Block:
93
   declare
94
 
95
      use Interfaces;
96
      use Ada.Exceptions;
97
      use type Interfaces.COBOL.Numeric;
98
 
99
      Number_Of_Unsigned_Items          : constant := 6;
100
      Number_Of_Leading_Separate_Items  : constant := 6;
101
      Number_Of_Trailing_Separate_Items : constant := 6;
102
      Number_Of_Decimal_Items           : constant := 9;
103
 
104
      type Decimal_Type_1     is delta 0.01 digits  4;
105
      type Decimal_Type_2     is delta 1.0 digits  10;
106
      type Numeric_Access     is access COBOL.Numeric;
107
      type Numeric_Items_Type is array(Integer range <>) of Numeric_Access;
108
 
109
      Correct_Result : Boolean        := False;
110
      TC_Num_1       : Decimal_Type_1 := 0.0;
111
      TC_Num_2       : Decimal_Type_2 := 0.0;
112
 
113
      package Package_1 is new COBOL.Decimal_Conversions(Decimal_Type_1);
114
      package Package_2 is new COBOL.Decimal_Conversions(Decimal_Type_2);
115
 
116
 
117
      Package_1_Numeric_Items :
118
        Numeric_Items_Type(1..Number_Of_Decimal_Items) :=
119
          (new COBOL.Numeric'("0"),
120
           new COBOL.Numeric'("591"),
121
           new COBOL.Numeric'("6342"),
122
           new COBOL.Numeric'("+0"),
123
           new COBOL.Numeric'("-1539"),
124
           new COBOL.Numeric'("+9199"),
125
           new COBOL.Numeric'("0-"),
126
           new COBOL.Numeric'("8934+"),
127
           new COBOL.Numeric'("9949-"));
128
 
129
      Package_2_Numeric_Items :
130
        Numeric_Items_Type(1..Number_Of_Decimal_Items) :=
131
          (new COBOL.Numeric'("3"),
132
           new COBOL.Numeric'("105"),
133
           new COBOL.Numeric'("1234567899"),
134
           new COBOL.Numeric'("+8"),
135
           new COBOL.Numeric'("-12345601"),
136
           new COBOL.Numeric'("+9123459999"),
137
           new COBOL.Numeric'("1-"),
138
           new COBOL.Numeric'("123456781+"),
139
           new COBOL.Numeric'("9499999999-"));
140
 
141
 
142
      Decimal_Type_1_Items : array (1..Number_Of_Decimal_Items)
143
                               of Decimal_Type_1 :=
144
        (0.0,  5.91,  63.42, 0.0, -15.39,  91.99, 0.0,  89.34, -99.49);
145
 
146
      Decimal_Type_2_Items : array (1..Number_Of_Decimal_Items)
147
                               of Decimal_Type_2 :=
148
        ( 3.0,        105.0,  1234567899.0,
149
          8.0,  -12345601.0,  9123459999.0,
150
         -1.0,  123456781.0, -9499999999.0);
151
 
152
   begin
153
 
154
      -- Check that function Length with Display_Format parameter will
155
      -- return the minimal length of a Numeric value (number of
156
      -- COBOL_Characters) that will be required to hold the largest
157
      -- value of type Num.
158
 
159
      if Package_1.Length(COBOL.Unsigned) /=  4 or
160
         Package_2.Length(COBOL.Unsigned) /= 10
161
      then
162
         Report.Failed("Incorrect results from function Length when " &
163
                       "used with Display_Format parameter Unsigned");
164
      end if;
165
 
166
      if Package_1.Length(Format => COBOL.Leading_Separate) /=  5 or
167
         Package_2.Length(Format => COBOL.Leading_Separate) /= 11
168
      then
169
         Report.Failed("Incorrect results from function Length when " &
170
                       "used with Display_Format parameter "          &
171
                       "Leading_Separate");
172
      end if;
173
 
174
      if Package_1.Length(COBOL.Trailing_Separate) /=  5 or
175
         Package_2.Length(COBOL.Trailing_Separate) /= 11
176
      then
177
         Report.Failed("Incorrect results from function Length when " &
178
                       "used with Display_Format parameter "          &
179
                       "Trailing_Separate");
180
      end if;
181
 
182
 
183
      -- Check that function To_Decimal with Numeric and Display_Format
184
      -- parameters will produce a decimal type Num result that corresponds
185
      -- to parameter Item as represented by parameter Format.
186
 
187
      for i in 1..Number_Of_Decimal_Items loop
188
         case i is
189
            when 1..3 =>  -- Unsigned Display_Format parameter.
190
 
191
               if Package_1.To_Decimal(Package_1_Numeric_Items(i).all,
192
                                       Format => COBOL.Unsigned) /=
193
                  Decimal_Type_1_Items(i)
194
               then
195
                  Report.Failed
196
                    ("Incorrect result from function To_Decimal "    &
197
                     "from an instantiation of Decimal_Conversions " &
198
                     "using a four-digit Decimal type, with Format " &
199
                     "parameter Unsigned, subtest index: "           &
200
                     Integer'Image(i));
201
               end if;
202
 
203
               if Package_2.To_Decimal(Package_2_Numeric_Items(i).all,
204
                                       Format => COBOL.Unsigned) /=
205
                  Decimal_Type_2_Items(i)
206
               then
207
                  Report.Failed
208
                    ("Incorrect result from function To_Decimal "    &
209
                     "from an instantiation of Decimal_Conversions " &
210
                     "using a ten-digit Decimal type, with Format "  &
211
                     "parameter Unsigned, subtest index: "           &
212
                     Integer'Image(i));
213
               end if;
214
 
215
            when 4..6 =>  -- Leading_Separate Display_Format parameter.
216
 
217
               if Package_1.To_Decimal(Package_1_Numeric_Items(i).all,
218
                                       Format => COBOL.Leading_Separate) /=
219
                  Decimal_Type_1_Items(i)
220
               then
221
                  Report.Failed
222
                    ("Incorrect result from function To_Decimal "    &
223
                     "from an instantiation of Decimal_Conversions " &
224
                     "using a four-digit Decimal type, with Format " &
225
                     "parameter Leading_Separate, subtest index: "   &
226
                     Integer'Image(i));
227
               end if;
228
 
229
               if Package_2.To_Decimal(Package_2_Numeric_Items(i).all,
230
                                       Format => COBOL.Leading_Separate) /=
231
                  Decimal_Type_2_Items(i)
232
               then
233
                  Report.Failed
234
                    ("Incorrect result from function To_Decimal "    &
235
                     "from an instantiation of Decimal_Conversions " &
236
                     "using a ten-digit Decimal type, with Format "  &
237
                     "parameter Leading_Separate, subtest index: "   &
238
                     Integer'Image(i));
239
               end if;
240
 
241
            when 7..9 =>  -- Trailing_Separate Display_Format parameter.
242
 
243
               if Package_1.To_Decimal(Package_1_Numeric_Items(i).all,
244
                                       COBOL.Trailing_Separate) /=
245
                  Decimal_Type_1_Items(i)
246
               then
247
                  Report.Failed
248
                    ("Incorrect result from function To_Decimal "    &
249
                     "from an instantiation of Decimal_Conversions " &
250
                     "using a four-digit Decimal type, with Format " &
251
                     "parameter Trailing_Separate, subtest index: "  &
252
                     Integer'Image(i));
253
               end if;
254
 
255
               if Package_2.To_Decimal(Package_2_Numeric_Items(i).all,
256
                                       COBOL.Trailing_Separate) /=
257
                  Decimal_Type_2_Items(i)
258
               then
259
                  Report.Failed
260
                    ("Incorrect result from function To_Decimal "    &
261
                     "from an instantiation of Decimal_Conversions " &
262
                     "using a ten-digit Decimal type, with Format "  &
263
                     "parameter Trailing_Separate, subtest index: "  &
264
                     Integer'Image(i));
265
               end if;
266
 
267
         end case;
268
      end loop;
269
 
270
 
271
      -- Check that function To_Decimal propagates Conversion_Error when
272
      -- the value represented by Numeric type parameter Item is outside
273
      -- the range of the Decimal_Type Num used to instantiate the package
274
      -- Decimal_Conversions.
275
 
276
      declare
277
         TC_Numeric_1 : Decimal_Type_1 := Decimal_Type_1_Items(1);
278
      begin
279
         -- The COBOL.Numeric type used as parameter Item represents a
280
         -- Decimal value that is outside the range of the Decimal type
281
         -- used to instantiate Package_1.
282
         TC_Numeric_1 :=
283
           Package_1.To_Decimal(Item   => Package_2_Numeric_Items(8).all,
284
                                Format => COBOL.Trailing_Separate);
285
         Report.Failed("Conversion_Error not raised by To_Decimal "     &
286
                       "when the value represented by parameter "       &
287
                       "Item is outside the range of the Decimal_Type " &
288
                       "used to instantiate the package "               &
289
                       "Decimal_Conversions");
290
         if TC_Numeric_1 = Decimal_Type_1_Items(1) then
291
            Report.Comment("To Guard Against Dead Assignment Elimination " &
292
                           "-- Should never be printed");
293
         end if;
294
      exception
295
         when COBOL.Conversion_Error => null;  -- OK, expected exception.
296
         when others =>
297
            Report.Failed("Incorrect exception raised by To_Decimal "      &
298
                          "when the value represented by parameter "       &
299
                          "Item is outside the range of the Decimal_Type " &
300
                          "used to instantiate the package "               &
301
                          "Decimal_Conversions");
302
      end;
303
 
304
 
305
      -- Check that function To_Display with decimal type Num and
306
      -- Display_Format parameters returns a Numeric type result that
307
      -- represents Item under the specific Display_Format.
308
 
309
      -- Unsigned Display_Format parameter.
310
      TC_Num_1       := 13.04;
311
      Correct_Result := (Package_1.To_Display(TC_Num_1, COBOL.Unsigned) =
312
                         "1304") AND
313
                        (Package_1.To_Display(TC_Num_1, COBOL.Unsigned) /=
314
                         "13.04");
315
      if not Correct_Result then
316
         Report.Failed("Incorrect result from function To_Display with " &
317
                       "Unsigned Display_Format parameter - 1");
318
      end if;
319
 
320
      TC_Num_2       := 1234567890.0;
321
      Correct_Result := Package_2.To_Display(TC_Num_2,
322
                                             COBOL.Unsigned) = "1234567890";
323
      if not Correct_Result then
324
         Report.Failed("Incorrect result from function To_Display with " &
325
                       "Unsigned Display_Format parameter - 2");
326
      end if;
327
 
328
      -- Leading_Separate Display_Format parameter.
329
      TC_Num_1       := -34.29;
330
      Correct_Result := (Package_1.To_Display(TC_Num_1,
331
                                              COBOL.Leading_Separate) =
332
                         "-3429") AND
333
                        (Package_1.To_Display(TC_Num_1,
334
                                              COBOL.Leading_Separate) /=
335
                         "-34.29");
336
      if not Correct_Result then
337
         Report.Failed("Incorrect result from function To_Display with " &
338
                       "Leading_Separate Display_Format parameter - 1");
339
      end if;
340
 
341
      TC_Num_1       := 19.01;
342
      Correct_Result := Package_1.To_Display(TC_Num_1,
343
                                             COBOL.Leading_Separate) =
344
                        "+1901";
345
      if not Correct_Result then
346
         Report.Failed("Incorrect result from function To_Display with " &
347
                       "Leading_Separate Display_Format parameter - 2");
348
      end if;
349
 
350
      TC_Num_2       := 1234567890.0;
351
      Correct_Result := Package_2.To_Display(TC_Num_2,
352
                                             COBOL.Leading_Separate) =
353
                        "+1234567890";
354
      if not Correct_Result then
355
         Report.Failed("Incorrect result from function To_Display with " &
356
                       "Leading_Separate Display_Format parameter - 3");
357
      end if;
358
 
359
      TC_Num_2       := -1234567890.0;
360
      Correct_Result := Package_2.To_Display(TC_Num_2,
361
                                             COBOL.Leading_Separate) =
362
                        "-1234567890";
363
      if not Correct_Result then
364
         Report.Failed("Incorrect result from function To_Display with " &
365
                       "Leading_Separate Display_Format parameter - 4");
366
      end if;
367
 
368
      -- Trailing_Separate Display_Format parameter.
369
      TC_Num_1       := -99.91;
370
      Correct_Result := (Package_1.To_Display(TC_Num_1,
371
                                             COBOL.Trailing_Separate) =
372
                         "9991-") AND
373
                        (Package_1.To_Display(TC_Num_1,
374
                                              COBOL.Trailing_Separate) /=
375
                         "99.91-");
376
      if not Correct_Result then
377
         Report.Failed("Incorrect result from function To_Display with " &
378
                       "Trailing_Separate Display_Format parameter - 1");
379
      end if;
380
 
381
      TC_Num_1       := 51.99;
382
      Correct_Result := Package_1.To_Display(TC_Num_1,
383
                                             COBOL.Trailing_Separate) =
384
                        "5199+";
385
      if not Correct_Result then
386
         Report.Failed("Incorrect result from function To_Display with " &
387
                       "Trailing_Separate Display_Format parameter - 2");
388
      end if;
389
 
390
      TC_Num_2       := 1234567890.0;
391
      Correct_Result := Package_2.To_Display(TC_Num_2,
392
                                             COBOL.Trailing_Separate) =
393
                        "1234567890+";
394
      if not Correct_Result then
395
         Report.Failed("Incorrect result from function To_Display with " &
396
                       "Trailing_Separate Display_Format parameter - 3");
397
      end if;
398
 
399
      TC_Num_2       := -1234567890.0;
400
      Correct_Result := Package_2.To_Display(TC_Num_2,
401
                                             COBOL.Trailing_Separate) =
402
                        "1234567890-";
403
      if not Correct_Result then
404
         Report.Failed("Incorrect result from function To_Display with " &
405
                       "Trailing_Separate Display_Format parameter - 4");
406
      end if;
407
 
408
 
409
      -- Check that function To_Display propagates Conversion_Error when
410
      -- parameter Item is negative and the specified Display_Format
411
      -- parameter is Unsigned.
412
 
413
      begin
414
         if Package_2.To_Display(Item   => Decimal_Type_2_Items(9),
415
                                 Format => COBOL.Unsigned) =
416
            Package_2_Numeric_Items(2).all
417
         then
418
            Report.Comment("To Guard Against Dead Assignment Elimination " &
419
                           "-- Should never be printed");
420
         end if;
421
         Report.Failed("Conversion_Error not raised by To_Display " &
422
                       "when the value represented by parameter "   &
423
                       "Item is negative and the Display_Format "   &
424
                       "parameter is Unsigned");
425
      exception
426
         when COBOL.Conversion_Error => null;  -- OK, expected exception.
427
         when others =>
428
            Report.Failed("Incorrect exception raised by To_Display " &
429
                          "when the value represented by parameter "  &
430
                          "Item is negative and the Display_Format "  &
431
                          "parameter is Unsigned");
432
      end;
433
 
434
 
435
   exception
436
      when The_Error : others =>
437
         Report.Failed ("The following exception was raised in the " &
438
                        "Test_Block: " & Exception_Name(The_Error));
439
   end Test_Block;
440
 
441
   Report.Result;
442
 
443
end CXB4004;

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