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1 -- CXA4009.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 the subprograms defined in package Ada.Strings.Bounded are
28 -- available, and that they produce correct results, especially under
29 -- conditions where truncation of the result is required. Specifically,
30 -- check the subprograms Overwrite (function and procedure), Delete,
31 -- Function Trim (blanks), Trim (Set characters, function and procedure),
32 -- Head, Tail, and Replicate (characters and strings).
33 --
34 -- TEST DESCRIPTION:
35 -- This test, in conjunction with tests CXA4006, CXA4007, and CXA4008,
36 -- will provide coverage of the most common usages of the functionality
37 -- found in the Ada.Strings.Bounded package. It deals in large part
38 -- with truncation effects and options. This test contains many small,
39 -- specific test cases, situations that are often difficult to generate
40 -- in large numbers in an application-based test. These cases represent
41 -- specific usage paradigms in-the-small.
42 --
43 --
44 -- CHANGE HISTORY:
45 -- 06 Dec 94 SAIC ACVC 2.0
46 -- 10 Apr 95 SAIC Corrected errors in Procedure Overwrite subtests.
47 -- 01 Nov 95 SAIC Fixed bugs for ACVC 2.0.1.
48 --
49 --!
50
51 with Report;
52 with Ada.Strings.Bounded;
53 with Ada.Strings.Maps;
54
55 procedure CXA4009 is
56
57 begin
58
59 Report.Test("CXA4009", "Check that the subprograms defined in " &
60 "package Ada.Strings.Bounded are available, " &
61 "and that they produce correct results, " &
62 "especially under conditions where " &
63 "truncation of the result is required");
64
65 Test_Block:
66 declare
67
68 package AS renames Ada.Strings;
69 package ASB renames Ada.Strings.Bounded;
70 package Maps renames Ada.Strings.Maps;
71
72 package B10 is new ASB.Generic_Bounded_Length(Max => 10);
73 use type B10.Bounded_String;
74
75 Result_String : B10.Bounded_String;
76 Test_String : B10.Bounded_String;
77 AtoE_Bnd_Str : B10.Bounded_String := B10.To_Bounded_String("abcde");
78 FtoJ_Bnd_Str : B10.Bounded_String := B10.To_Bounded_String("fghij");
79 AtoJ_Bnd_Str : B10.Bounded_String :=
80 B10.To_Bounded_String("abcdefghij");
81
82 Location : Natural := 0;
83 Total_Count : Natural := 0;
84
85 CD_Set : Maps.Character_Set := Maps.To_Set("cd");
86 XY_Set : Maps.Character_Set := Maps.To_Set("xy");
87
88
89 begin
90
91 -- Function Overwrite with Truncation
92 -- Drop = Error (Default).
93
94 begin
95 Test_String := AtoJ_Bnd_Str;
96 Result_String :=
97 B10.Overwrite(Source => Test_String, -- "abcdefghij"
98 Position => 9,
99 New_Item => "xyz",
100 Drop => AS.Error);
101 Report.Failed("Exception not raised by Function Overwrite");
102 exception
103 when AS.Length_Error => null; -- Expected exception raised.
104 when others =>
105 Report.Failed("Incorrect exception raised by Function Overwrite");
106 end;
107
108 -- Drop = Left
109
110 Result_String :=
111 B10.Overwrite(Source => Test_String, -- "abcdefghij"
112 Position => B10.Length(Test_String), -- 10
113 New_Item => "xyz",
114 Drop => Ada.Strings.Left);
115
116 if B10.To_String(Result_String) /= "cdefghixyz" then -- drop a,b
117 Report.Failed
118 ("Incorrect result from Function Overwrite, Drop = Left");
119 end if;
120
121 -- Drop = Right
122
123 Result_String := B10.Overwrite(Test_String, -- "abcdefghij"
124 3,
125 "xxxyyyzzz",
126 Ada.Strings.Right);
127
128 if B10.To_String(Result_String) /= "abxxxyyyzz" then -- one 'z' dropped
129 Report.Failed
130 ("Incorrect result from Function Overwrite, Drop = Right");
131 end if;
132
133 -- Additional cases of function Overwrite.
134
135 if B10.Overwrite(B10.To_Bounded_String("a"), -- Source length = 1
136 1,
137 " abc ") /=
138 B10.To_Bounded_String(" abc ") or
139 B10.Overwrite(B10.Null_Bounded_String, -- Null source
140 1,
141 "abcdefghij") /=
142 AtoJ_Bnd_Str or
143 B10.Overwrite(AtoE_Bnd_Str,
144 B10.To_String(AtoE_Bnd_Str)'First,
145 " ") /= -- New_Item = 1
146 B10.To_Bounded_String(" bcde")
147 then
148 Report.Failed("Incorrect result from Function Overwrite");
149 end if;
150
151
152
153 -- Procedure Overwrite
154 -- Correct usage, no truncation.
155
156 Test_String := AtoE_Bnd_Str; -- "abcde"
157 B10.Overwrite(Test_String, 2, "xyz");
158
159 if Test_String /= B10.To_Bounded_String("axyze") then
160 Report.Failed("Incorrect result from Procedure Overwrite - 1");
161 end if;
162
163 Test_String := B10.To_Bounded_String("abc");
164 B10.Overwrite(Test_String, 2, ""); -- New_Item is null string.
165
166 if Test_String /= B10.To_Bounded_String("abc") then
167 Report.Failed("Incorrect result from Procedure Overwrite - 2");
168 end if;
169
170 -- Drop = Error (Default).
171
172 begin
173 Test_String := AtoJ_Bnd_Str;
174 B10.Overwrite(Source => Test_String, -- "abcdefghij"
175 Position => 8,
176 New_Item => "uvwxyz");
177 Report.Failed("Exception not raised by Procedure Overwrite");
178 exception
179 when AS.Length_Error => null; -- Expected exception raised.
180 when others =>
181 Report.Failed("Incorrect exception raised by Procedure Overwrite");
182 end;
183
184 -- Drop = Left
185
186 Test_String := AtoJ_Bnd_Str;
187 B10.Overwrite(Source => Test_String, -- "abcdefghij"
188 Position => B10.Length(Test_String) - 2, -- 8
189 New_Item => "uvwxyz",
190 Drop => Ada.Strings.Left);
191
192 if B10.To_String(Test_String) /= "defguvwxyz" then -- drop a-c
193 Report.Failed
194 ("Incorrect result from Procedure Overwrite, Drop = Left");
195 end if;
196
197 -- Drop = Right
198
199 Test_String := AtoJ_Bnd_Str;
200 B10.Overwrite(Test_String, -- "abcdefghij"
201 3,
202 "xxxyyyzzz",
203 Ada.Strings.Right);
204
205 if B10.To_String(Test_String) /= "abxxxyyyzz" then -- one 'z' dropped
206 Report.Failed
207 ("Incorrect result from Procedure Overwrite, Drop = Right");
208 end if;
209
210
211
212 -- Function Delete
213
214 if B10.Delete(Source => AtoJ_Bnd_Str, -- "abcdefghij"
215 From => 3,
216 Through => 8) /=
217 B10."&"(B10.Head(AtoJ_Bnd_Str, 2),
218 B10.Tail(AtoJ_Bnd_Str, 2)) or
219 B10.Delete(AtoJ_Bnd_Str, 6, B10.Length(AtoJ_Bnd_Str)) /=
220 AtoE_Bnd_Str or
221 B10.Delete(AtoJ_Bnd_Str, 1, 5) /=
222 FtoJ_Bnd_Str or
223 B10.Delete(AtoE_Bnd_Str, 4, 5) /=
224 B10.Delete(AtoJ_Bnd_Str, 4, B10.Length(AtoJ_Bnd_Str))
225 then
226 Report.Failed("Incorrect result from Function Delete - 1");
227 end if;
228
229 if B10.Delete(B10.To_Bounded_String("a"), 1, 1) /=
230 B10.Null_Bounded_String or
231 B10.Delete(AtoE_Bnd_Str,
232 5,
233 B10.To_String(AtoE_Bnd_Str)'First) /=
234 AtoE_Bnd_Str or
235 B10.Delete(AtoE_Bnd_Str,
236 B10.To_String(AtoE_Bnd_Str)'Last,
237 B10.To_String(AtoE_Bnd_Str)'Last) /=
238 B10.To_Bounded_String("abcd")
239 then
240 Report.Failed("Incorrect result from Function Delete - 2");
241 end if;
242
243
244
245 -- Function Trim
246
247 declare
248
249 Text : B10.Bounded_String := B10.To_Bounded_String("Text");
250 type Bnd_Array_Type is array (1..5) of B10.Bounded_String;
251 Bnd_Array : Bnd_Array_Type :=
252 (B10.To_Bounded_String(" Text"),
253 B10.To_Bounded_String("Text "),
254 B10.To_Bounded_String(" Text "),
255 B10.To_Bounded_String("Text Text"), -- Ensure no inter-string
256 B10.To_Bounded_String(" Text Text")); -- trimming of blanks.
257
258 begin
259
260 for i in Bnd_Array_Type'Range loop
261 case i is
262 when 4 =>
263 if B10.Trim(Bnd_Array(i), AS.Both) /=
264 Bnd_Array(i) then -- no change
265 Report.Failed("Incorrect result from Function Trim - 4");
266 end if;
267 when 5 =>
268 if B10.Trim(Bnd_Array(i), AS.Both) /=
269 B10."&"(Text, B10."&"(' ', Text)) then
270 Report.Failed("Incorrect result from Function Trim - 5");
271 end if;
272 when others =>
273 if B10.Trim(Bnd_Array(i), AS.Both) /= Text then
274 Report.Failed("Incorrect result from Function Trim - " &
275 Integer'Image(i));
276 end if;
277 end case;
278 end loop;
279
280 end;
281
282
283
284 -- Function Trim using Sets
285
286 -- Trim characters in sets from both sides of the bounded string.
287 if B10.Trim(Source => B10.To_Bounded_String("ddabbaxx"),
288 Left => CD_Set,
289 Right => XY_Set) /=
290 B10.To_Bounded_String("abba")
291 then
292 Report.Failed
293 ("Incorrect result from Fn Trim - Sets, Left & Right side - 1");
294 end if;
295
296 -- Ensure that the characters in the set provided as the actual to
297 -- parameter Right are not trimmed from the left side of the bounded
298 -- string; likewise for the opposite side. Only "cd" trimmed from left
299 -- side, and only "xy" trimmed from right side.
300
301 if B10.Trim(B10.To_Bounded_String("cdxyabcdxy"), CD_Set, XY_Set) /=
302 B10.To_Bounded_String("xyabcd")
303 then
304 Report.Failed
305 ("Incorrect result from Fn Trim - Sets, Left & Right side - 2");
306 end if;
307
308 -- Ensure that characters contained in the sets are not trimmed from
309 -- the "interior" of the bounded string, just the appropriate ends.
310
311 if B10.Trim(B10.To_Bounded_String("cdabdxabxy"), CD_Set, XY_Set) /=
312 B10.To_Bounded_String("abdxab")
313 then
314 Report.Failed
315 ("Incorrect result from Fn Trim - Sets, Left & Right side - 3");
316 end if;
317
318 -- Trim characters in set from right side only. No change to Left side.
319
320 if B10.Trim(B10.To_Bounded_String("abxyzddcd"), XY_Set, CD_Set) /=
321 B10.To_Bounded_String("abxyz")
322 then
323 Report.Failed
324 ("Incorrect result from Fn Trim - Sets, Right side");
325 end if;
326
327 -- Trim no characters on either side of the bounded string.
328
329 Result_String := B10.Trim(AtoJ_Bnd_Str, CD_Set, XY_Set);
330 if Result_String /= AtoJ_Bnd_Str then
331 Report.Failed("Incorrect result from Fn Trim - Sets, Neither side");
332 end if;
333
334 if B10.Trim(AtoE_Bnd_Str, Maps.Null_Set, Maps.Null_Set) /=
335 AtoE_Bnd_Str or
336 B10.Trim(B10.To_Bounded_String("dcddcxyyxx"),
337 CD_Set,
338 XY_Set) /=
339 B10.Null_Bounded_String
340 then
341 Report.Failed("Incorrect result from Function Trim");
342 end if;
343
344
345
346 -- Procedure Trim using Sets
347
348 -- Trim characters in sets from both sides of the bounded string.
349
350 Test_String := B10.To_Bounded_String("dcabbayx");
351 B10.Trim(Source => Test_String,
352 Left => CD_Set,
353 Right => XY_Set);
354
355 if Test_String /= B10.To_Bounded_String("abba") then
356 Report.Failed
357 ("Incorrect result from Proc Trim - Sets, Left & Right side - 1");
358 end if;
359
360 -- Ensure that the characters in the set provided as the actual to
361 -- parameter Right are not trimmed from the left side of the bounded
362 -- string; likewise for the opposite side. Only "cd" trimmed from left
363 -- side, and only "xy" trimmed from right side.
364
365 Test_String := B10.To_Bounded_String("cdxyabcdxy");
366 B10.Trim(Test_String, CD_Set, XY_Set);
367
368 if Test_String /= B10.To_Bounded_String("xyabcd") then
369 Report.Failed
370 ("Incorrect result from Proc Trim - Sets, Left & Right side - 2");
371 end if;
372
373 -- Ensure that characters contained in the sets are not trimmed from
374 -- the "interior" of the bounded string, just the appropriate ends.
375
376 Test_String := B10.To_Bounded_String("cdabdxabxy");
377 B10.Trim(Test_String, CD_Set, XY_Set);
378
379 if not (Test_String = B10.To_Bounded_String("abdxab")) then
380 Report.Failed
381 ("Incorrect result from Proc Trim - Sets, Left & Right side - 3");
382 end if;
383
384 -- Trim characters in set from Left side only. No change to Right side.
385
386 Test_String := B10.To_Bounded_String("cccdabxyz");
387 B10.Trim(Test_String, CD_Set, XY_Set);
388
389 if Test_String /= B10.To_Bounded_String("abxyz") then
390 Report.Failed
391 ("Incorrect result from Proc Trim for Sets, Left side only");
392 end if;
393
394 -- Trim no characters on either side of the bounded string.
395
396 Test_String := AtoJ_Bnd_Str;
397 B10.Trim(Test_String, CD_Set, CD_Set);
398
399 if Test_String /= AtoJ_Bnd_Str then
400 Report.Failed("Incorrect result from Proc Trim-Sets, Neither side");
401 end if;
402
403
404
405 -- Function Head with Truncation
406 -- Drop = Error (Default).
407
408 begin
409 Result_String := B10.Head(Source => AtoJ_Bnd_Str, -- max length
410 Count => B10.Length(AtoJ_Bnd_Str) + 1,
411 Pad => 'X');
412 Report.Failed("Length_Error not raised by Function Head");
413 exception
414 when AS.Length_Error => null; -- Expected exception raised.
415 when others =>
416 Report.Failed("Incorrect exception raised by Function Head");
417 end;
418
419 -- Drop = Left
420
421 -- Pad characters (5) are appended to the right end of the string
422 -- (which is initially at its maximum length), then the first five
423 -- characters of the intermediate result are dropped to conform to
424 -- the maximum size limit of the bounded string (10).
425
426 Result_String := B10.Head(B10.To_Bounded_String("ABCDEFGHIJ"),
427 15,
428 'x',
429 Ada.Strings.Left);
430
431 if Result_String /= B10.To_Bounded_String("FGHIJxxxxx") then
432 Report.Failed("Incorrect result from Function Head, Drop = Left");
433 end if;
434
435 -- Drop = Right
436
437 -- Pad characters (6) are appended to the left end of the string
438 -- (which is initially at one less than its maximum length), then the
439 -- last five characters of the intermediate result are dropped
440 -- (which in this case are the pad characters) to conform to the
441 -- maximum size limit of the bounded string (10).
442
443 Result_String := B10.Head(B10.To_Bounded_String("ABCDEFGHI"),
444 15,
445 'x',
446 Ada.Strings.Right);
447
448 if Result_String /= B10.To_Bounded_String("ABCDEFGHIx") then
449 Report.Failed("Incorrect result from Function Head, Drop = Right");
450 end if;
451
452 -- Additional cases.
453
454 if B10.Head(B10.Null_Bounded_String, 5) /=
455 B10.To_Bounded_String(" ") or
456 B10.Head(AtoE_Bnd_Str,
457 B10.Length(AtoE_Bnd_Str)) /=
458 AtoE_Bnd_Str
459 then
460 Report.Failed("Incorrect result from Function Head");
461 end if;
462
463
464
465 -- Function Tail with Truncation
466 -- Drop = Error (Default Case)
467
468 begin
469 Result_String := B10.Tail(Source => AtoJ_Bnd_Str, -- max length
470 Count => B10.Length(AtoJ_Bnd_Str) + 1,
471 Pad => Ada.Strings.Space,
472 Drop => Ada.Strings.Error);
473 Report.Failed("Length_Error not raised by Function Tail");
474 exception
475 when AS.Length_Error => null; -- Expected exception raised.
476 when others =>
477 Report.Failed("Incorrect exception raised by Function Tail");
478 end;
479
480 -- Drop = Left
481
482 -- Pad characters (5) are appended to the left end of the string
483 -- (which is initially at two less than its maximum length), then
484 -- the first three characters of the intermediate result (in this
485 -- case, 3 pad characters) are dropped.
486
487 Result_String := B10.Tail(B10.To_Bounded_String("ABCDEFGH"), -- 8 ch
488 13,
489 'x',
490 Ada.Strings.Left);
491
492 if Result_String /= B10.To_Bounded_String("xxABCDEFGH") then
493 Report.Failed("Incorrect result from Function Tail, Drop = Left");
494 end if;
495
496 -- Drop = Right
497
498 -- Pad characters (3) are appended to the left end of the string
499 -- (which is initially at its maximum length), then the last three
500 -- characters of the intermediate result are dropped.
501
502 Result_String := B10.Tail(B10.To_Bounded_String("ABCDEFGHIJ"),
503 13,
504 'x',
505 Ada.Strings.Right);
506
507 if Result_String /= B10.To_Bounded_String("xxxABCDEFG") then
508 Report.Failed("Incorrect result from Function Tail, Drop = Right");
509 end if;
510
511 -- Additional cases.
512
513 if B10.Tail(B10.Null_Bounded_String, 3, ' ') /=
514 B10.To_Bounded_String(" ") or
515 B10.Tail(AtoE_Bnd_Str,
516 B10.To_String(AtoE_Bnd_Str)'First) /=
517 B10.To_Bounded_String("e")
518 then
519 Report.Failed("Incorrect result from Function Tail");
520 end if;
521
522
523
524 -- Function Replicate (#, Char) with Truncation
525 -- Drop = Error (Default).
526
527 begin
528 Result_String := B10.Replicate(Count => B10.Max_Length + 5,
529 Item => 'A',
530 Drop => AS.Error);
531 Report.Failed
532 ("Length_Error not raised by Replicate for characters");
533 exception
534 when AS.Length_Error => null; -- Expected exception raised.
535 when others =>
536 Report.Failed
537 ("Incorrect exception raised by Replicate for characters");
538 end;
539
540 -- Drop = Left, Right
541 -- Since this version of Replicate uses character parameters, the
542 -- result after truncation from left or right will appear the same.
543 -- The result will be a 10 character bounded string, composed of 10
544 -- "Item" characters.
545
546 if B10.Replicate(Count => 20, Item => 'A', Drop => Ada.Strings.Left) /=
547 B10.Replicate(15, 'A', Ada.Strings.Right)
548 then
549 Report.Failed("Incorrect result from Replicate for characters - 1");
550 end if;
551
552 -- Blank-filled 10 character bounded strings.
553
554 if B10.Replicate(B10.Max_Length + 1, ' ', Drop => Ada.Strings.Left) /=
555 B10.Replicate(B10.Max_Length, Ada.Strings.Space)
556 then
557 Report.Failed("Incorrect result from Replicate for characters - 2");
558 end if;
559
560 -- Additional cases.
561
562 if B10.Replicate(0, 'a') /= B10.Null_Bounded_String or
563 B10.Replicate(1, 'a') /= B10.To_Bounded_String("a")
564 then
565 Report.Failed("Incorrect result from Replicate for characters - 3");
566 end if;
567
568
569
570 -- Function Replicate (#, String) with Truncation
571 -- Drop = Error (Default).
572
573 begin
574 Result_String := B10.Replicate(Count => 5, -- result would be 15.
575 Item => "abc");
576 Report.Failed
577 ("Length_Error not raised by Replicate for strings");
578 exception
579 when AS.Length_Error => null; -- Expected exception raised.
580 when others =>
581 Report.Failed
582 ("Incorrect exception raised by Replicate for strings");
583 end;
584
585 -- Drop = Left
586
587 Result_String := B10.Replicate(3, "abcd", Drop => Ada.Strings.Left);
588
589 if Result_String /= B10.To_Bounded_String("cdabcdabcd") then
590 Report.Failed
591 ("Incorrect result from Replicate for strings, Drop = Left");
592 end if;
593
594 -- Drop = Right
595
596 Result_String := B10.Replicate(3, "abcd", Drop => Ada.Strings.Right);
597
598 if Result_String /= B10.To_Bounded_String("abcdabcdab") then
599 Report.Failed
600 ("Incorrect result from Replicate for strings, Drop = Right");
601 end if;
602
603 -- Additional cases.
604
605 if B10.Replicate(10, "X") /= B10.To_Bounded_String("XXXXXXXXXX") or
606 B10.Replicate(10, "") /= B10.Null_Bounded_String or
607 B10.Replicate( 0, "ab") /= B10.Null_Bounded_String
608 then
609 Report.Failed("Incorrect result from Replicate for strings");
610 end if;
611
612
613 exception
614 when others => Report.Failed("Exception raised in Test_Block");
615 end Test_Block;
616
617 Report.Result;
618
619 end CXA4009;