1 |
149 |
jeremybenn |
-- CXAC005.A
|
2 |
|
|
--
|
3 |
|
|
-- Grant of Unlimited Rights
|
4 |
|
|
--
|
5 |
|
|
-- The Ada Conformity Assessment Authority (ACAA) holds unlimited
|
6 |
|
|
-- rights in the software and documentation contained herein. Unlimited
|
7 |
|
|
-- rights are the same as those granted by the U.S. Government for older
|
8 |
|
|
-- parts of the Ada Conformity Assessment Test Suite, and are defined
|
9 |
|
|
-- in DFAR 252.227-7013(a)(19). By making this public release, the ACAA
|
10 |
|
|
-- intends to confer upon all recipients unlimited rights equal to those
|
11 |
|
|
-- held by the ACAA. These rights include rights to use, duplicate,
|
12 |
|
|
-- release or disclose the released technical data and computer software
|
13 |
|
|
-- in whole or in part, in any manner and for any purpose whatsoever, and
|
14 |
|
|
-- to have or permit others 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 stream file positioning work as specified. (Defect Report
|
28 |
|
|
-- 8652/0055).
|
29 |
|
|
--
|
30 |
|
|
-- CHANGE HISTORY:
|
31 |
|
|
-- 12 FEB 2001 PHL Initial version.
|
32 |
|
|
-- 14 MAR 2001 RLB Readied for release; fixed Not_Applicable check
|
33 |
|
|
-- to terminate test gracefully.
|
34 |
|
|
--
|
35 |
|
|
--!
|
36 |
|
|
with Ada.Streams.Stream_Io;
|
37 |
|
|
use Ada.Streams;
|
38 |
|
|
with Ada.Exceptions;
|
39 |
|
|
use Ada.Exceptions;
|
40 |
|
|
with Report;
|
41 |
|
|
use Report;
|
42 |
|
|
procedure CXAC005 is
|
43 |
|
|
|
44 |
|
|
Incomplete : exception;
|
45 |
|
|
|
46 |
|
|
procedure TC_Assert (Condition : Boolean; Message : String) is
|
47 |
|
|
begin
|
48 |
|
|
if not Condition then
|
49 |
|
|
Failed (Message);
|
50 |
|
|
end if;
|
51 |
|
|
end TC_Assert;
|
52 |
|
|
|
53 |
|
|
package Checked_Stream_Io is
|
54 |
|
|
|
55 |
|
|
type File_Type (Max_Size : Stream_Element_Count) is limited private;
|
56 |
|
|
function Stream_Io_File (File : File_Type) return Stream_Io.File_Type;
|
57 |
|
|
|
58 |
|
|
procedure Create (File : in out File_Type;
|
59 |
|
|
Mode : in Stream_Io.File_Mode := Stream_Io.Out_File;
|
60 |
|
|
Name : in String := "";
|
61 |
|
|
Form : in String := "");
|
62 |
|
|
|
63 |
|
|
procedure Open (File : in out File_Type;
|
64 |
|
|
Mode : in Stream_Io.File_Mode;
|
65 |
|
|
Name : in String;
|
66 |
|
|
Form : in String := "");
|
67 |
|
|
|
68 |
|
|
procedure Close (File : in out File_Type);
|
69 |
|
|
procedure Delete (File : in out File_Type);
|
70 |
|
|
|
71 |
|
|
procedure Reset (File : in out File_Type;
|
72 |
|
|
Mode : in Stream_Io.File_Mode);
|
73 |
|
|
procedure Reset (File : in out File_Type);
|
74 |
|
|
|
75 |
|
|
procedure Read (File : in out File_Type;
|
76 |
|
|
Item : out Stream_Element_Array;
|
77 |
|
|
Last : out Stream_Element_Offset;
|
78 |
|
|
From : in Stream_Io.Positive_Count);
|
79 |
|
|
|
80 |
|
|
procedure Read (File : in out File_Type;
|
81 |
|
|
Item : out Stream_Element_Array;
|
82 |
|
|
Last : out Stream_Element_Offset);
|
83 |
|
|
|
84 |
|
|
procedure Write (File : in out File_Type;
|
85 |
|
|
Item : in Stream_Element_Array;
|
86 |
|
|
To : in Stream_Io.Positive_Count);
|
87 |
|
|
|
88 |
|
|
procedure Write (File : in out File_Type;
|
89 |
|
|
Item : in Stream_Element_Array);
|
90 |
|
|
|
91 |
|
|
procedure Set_Index (File : in out File_Type;
|
92 |
|
|
To : in Stream_Io.Positive_Count);
|
93 |
|
|
|
94 |
|
|
function Index (File : in File_Type) return Stream_Io.Positive_Count;
|
95 |
|
|
|
96 |
|
|
procedure Set_Mode (File : in out File_Type;
|
97 |
|
|
Mode : in Stream_Io.File_Mode);
|
98 |
|
|
|
99 |
|
|
private
|
100 |
|
|
type File_Type (Max_Size : Stream_Element_Count) is
|
101 |
|
|
record
|
102 |
|
|
File : Stream_Io.File_Type;
|
103 |
|
|
Index : Stream_Io.Positive_Count;
|
104 |
|
|
Contents :
|
105 |
|
|
Stream_Element_Array
|
106 |
|
|
(Stream_Element_Offset (Ident_Int (1)) .. Max_Size);
|
107 |
|
|
end record;
|
108 |
|
|
end Checked_Stream_Io;
|
109 |
|
|
|
110 |
|
|
package body Checked_Stream_Io is
|
111 |
|
|
|
112 |
|
|
use Stream_Io;
|
113 |
|
|
|
114 |
|
|
function Stream_Io_File (File : File_Type) return Stream_Io.File_Type is
|
115 |
|
|
begin
|
116 |
|
|
return File.File;
|
117 |
|
|
end Stream_Io_File;
|
118 |
|
|
|
119 |
|
|
procedure Create (File : in out File_Type;
|
120 |
|
|
Mode : in Stream_Io.File_Mode := Stream_Io.Out_File;
|
121 |
|
|
Name : in String := "";
|
122 |
|
|
Form : in String := "") is
|
123 |
|
|
begin
|
124 |
|
|
Stream_Io.Create (File.File, Mode, Name, Form);
|
125 |
|
|
File.Index := Stream_Io.Index (File.File);
|
126 |
|
|
if Mode = Append_File then
|
127 |
|
|
TC_Assert (File.Index = Stream_Io.Size (File.File) + 1,
|
128 |
|
|
"Index /= Size + 1 -- Create - Append_File");
|
129 |
|
|
else
|
130 |
|
|
TC_Assert (File.Index = 1, "Index /= 1 -- Create - " &
|
131 |
|
|
File_Mode'Image (Mode));
|
132 |
|
|
end if;
|
133 |
|
|
end Create;
|
134 |
|
|
|
135 |
|
|
procedure Open (File : in out File_Type;
|
136 |
|
|
Mode : in Stream_Io.File_Mode;
|
137 |
|
|
Name : in String;
|
138 |
|
|
Form : in String := "") is
|
139 |
|
|
begin
|
140 |
|
|
Stream_Io.Open (File.File, Mode, Name, Form);
|
141 |
|
|
File.Index := Stream_Io.Index (File.File);
|
142 |
|
|
if Mode = Append_File then
|
143 |
|
|
TC_Assert (File.Index = Stream_Io.Size (File.File) + 1,
|
144 |
|
|
"Index /= Size + 1 -- Open - Append_File");
|
145 |
|
|
else
|
146 |
|
|
TC_Assert (File.Index = 1, "Index /= 1 -- Open - " &
|
147 |
|
|
File_Mode'Image (Mode));
|
148 |
|
|
end if;
|
149 |
|
|
end Open;
|
150 |
|
|
|
151 |
|
|
procedure Close (File : in out File_Type) is
|
152 |
|
|
begin
|
153 |
|
|
Stream_Io.Close (File.File);
|
154 |
|
|
end Close;
|
155 |
|
|
|
156 |
|
|
procedure Delete (File : in out File_Type) is
|
157 |
|
|
begin
|
158 |
|
|
Stream_Io.Delete (File.File);
|
159 |
|
|
end Delete;
|
160 |
|
|
|
161 |
|
|
procedure Reset (File : in out File_Type;
|
162 |
|
|
Mode : in Stream_Io.File_Mode) is
|
163 |
|
|
begin
|
164 |
|
|
Stream_Io.Reset (File.File, Mode);
|
165 |
|
|
File.Index := Stream_Io.Index (File.File);
|
166 |
|
|
if Mode = Append_File then
|
167 |
|
|
TC_Assert (File.Index = Stream_Io.Size (File.File) + 1,
|
168 |
|
|
"Index /= Size + 1 -- Reset - Append_File");
|
169 |
|
|
else
|
170 |
|
|
TC_Assert (File.Index = 1, "Index /= 1 -- Reset - " &
|
171 |
|
|
File_Mode'Image (Mode));
|
172 |
|
|
end if;
|
173 |
|
|
end Reset;
|
174 |
|
|
|
175 |
|
|
procedure Reset (File : in out File_Type) is
|
176 |
|
|
begin
|
177 |
|
|
Reset (File, Stream_Io.Mode (File.File));
|
178 |
|
|
end Reset;
|
179 |
|
|
|
180 |
|
|
|
181 |
|
|
procedure Read (File : in out File_Type;
|
182 |
|
|
Item : out Stream_Element_Array;
|
183 |
|
|
Last : out Stream_Element_Offset;
|
184 |
|
|
From : in Stream_Io.Positive_Count) is
|
185 |
|
|
begin
|
186 |
|
|
Set_Index (File, From);
|
187 |
|
|
Read (File, Item, Last);
|
188 |
|
|
end Read;
|
189 |
|
|
|
190 |
|
|
procedure Read (File : in out File_Type;
|
191 |
|
|
Item : out Stream_Element_Array;
|
192 |
|
|
Last : out Stream_Element_Offset) is
|
193 |
|
|
Index : constant Stream_Element_Offset :=
|
194 |
|
|
Stream_Element_Offset (File.Index);
|
195 |
|
|
begin
|
196 |
|
|
Stream_Io.Read (File.File, Item, Last);
|
197 |
|
|
if Last < Item'Last then
|
198 |
|
|
TC_Assert (Item (Item'First .. Last) =
|
199 |
|
|
File.Contents (Index .. Index + Last - Item'First),
|
200 |
|
|
"Incorrect data read from file - 1");
|
201 |
|
|
TC_Assert (Count (Index + Last - Item'First) =
|
202 |
|
|
Stream_Io.Size (File.File),
|
203 |
|
|
"Read stopped before end of file");
|
204 |
|
|
File.Index := Count (Index + Last - Item'First) + 1;
|
205 |
|
|
else
|
206 |
|
|
TC_Assert (Item = File.Contents (Index .. Index + Item'Length - 1),
|
207 |
|
|
"Incorrect data read from file - 2");
|
208 |
|
|
File.Index := File.Index + Item'Length;
|
209 |
|
|
end if;
|
210 |
|
|
end Read;
|
211 |
|
|
|
212 |
|
|
procedure Write (File : in out File_Type;
|
213 |
|
|
Item : in Stream_Element_Array;
|
214 |
|
|
To : in Stream_Io.Positive_Count) is
|
215 |
|
|
begin
|
216 |
|
|
Set_Index (File, To);
|
217 |
|
|
Write (File, Item);
|
218 |
|
|
end Write;
|
219 |
|
|
|
220 |
|
|
procedure Write (File : in out File_Type;
|
221 |
|
|
Item : in Stream_Element_Array) is
|
222 |
|
|
Index : constant Stream_Element_Offset :=
|
223 |
|
|
Stream_Element_Offset (File.Index);
|
224 |
|
|
begin
|
225 |
|
|
Stream_Io.Write (File.File, Item);
|
226 |
|
|
File.Contents (Index .. Index + Item'Length - 1) := Item;
|
227 |
|
|
File.Index := File.Index + Item'Length;
|
228 |
|
|
TC_Assert (File.Index = Stream_Io.Index (File.File),
|
229 |
|
|
"Write failed to move the index");
|
230 |
|
|
end Write;
|
231 |
|
|
|
232 |
|
|
procedure Set_Index (File : in out File_Type;
|
233 |
|
|
To : in Stream_Io.Positive_Count) is
|
234 |
|
|
begin
|
235 |
|
|
Stream_Io.Set_Index (File.File, To);
|
236 |
|
|
File.Index := Stream_Io.Index (File.File);
|
237 |
|
|
TC_Assert (File.Index = To, "Set_Index failed");
|
238 |
|
|
end Set_Index;
|
239 |
|
|
|
240 |
|
|
function Index (File : in File_Type) return Stream_Io.Positive_Count is
|
241 |
|
|
New_Index : constant Count := Stream_Io.Index (File.File);
|
242 |
|
|
begin
|
243 |
|
|
TC_Assert (New_Index = File.Index, "Index changed unexpectedly");
|
244 |
|
|
return New_Index;
|
245 |
|
|
end Index;
|
246 |
|
|
|
247 |
|
|
procedure Set_Mode (File : in out File_Type;
|
248 |
|
|
Mode : in Stream_Io.File_Mode) is
|
249 |
|
|
Old_Index : constant Count := File.Index;
|
250 |
|
|
begin
|
251 |
|
|
Stream_Io.Set_Mode (File.File, Mode);
|
252 |
|
|
File.Index := Stream_Io.Index (File.File);
|
253 |
|
|
if Mode = Append_File then
|
254 |
|
|
TC_Assert (File.Index = Stream_Io.Size (File.File) + 1,
|
255 |
|
|
"Index /= Size + 1 -- Set_Mode - Append_File");
|
256 |
|
|
else
|
257 |
|
|
TC_Assert (File.Index = Old_Index, "Set_Mode changed the index");
|
258 |
|
|
end if;
|
259 |
|
|
end Set_Mode;
|
260 |
|
|
|
261 |
|
|
end Checked_Stream_Io;
|
262 |
|
|
|
263 |
|
|
package Csio renames Checked_Stream_Io;
|
264 |
|
|
|
265 |
|
|
F : Csio.File_Type (100);
|
266 |
|
|
S : Stream_Element_Array (1 .. 10);
|
267 |
|
|
Last : Stream_Element_Offset;
|
268 |
|
|
|
269 |
|
|
begin
|
270 |
|
|
|
271 |
|
|
Test ("CXAC005", "Check that stream file positioning work as specified");
|
272 |
|
|
|
273 |
|
|
declare
|
274 |
|
|
Name : constant String := Legal_File_Name;
|
275 |
|
|
begin
|
276 |
|
|
begin
|
277 |
|
|
Csio.Create (F, Name => Name);
|
278 |
|
|
exception
|
279 |
|
|
when others =>
|
280 |
|
|
Not_Applicable ("Files not supported - Creation with Out_File for Stream_IO");
|
281 |
|
|
raise Incomplete;
|
282 |
|
|
end;
|
283 |
|
|
|
284 |
|
|
for I in Stream_Element range 1 .. 10 loop
|
285 |
|
|
Csio.Write (F, ((1 => I + 2)));
|
286 |
|
|
end loop;
|
287 |
|
|
Csio.Write (F, (1 .. 15 => 11));
|
288 |
|
|
Csio.Write (F, (1 .. 15 => 12), To => 15);
|
289 |
|
|
|
290 |
|
|
Csio.Reset (F);
|
291 |
|
|
|
292 |
|
|
for I in Stream_Element range 1 .. 10 loop
|
293 |
|
|
Csio.Write (F, (1 => I));
|
294 |
|
|
end loop;
|
295 |
|
|
Csio.Write (F, (1 .. 15 => 13));
|
296 |
|
|
Csio.Write (F, (1 .. 15 => 14), To => 15);
|
297 |
|
|
Csio.Write (F, (1 => 90));
|
298 |
|
|
|
299 |
|
|
Csio.Set_Mode (F, Stream_Io.In_File);
|
300 |
|
|
|
301 |
|
|
Csio.Read (F, S, Last);
|
302 |
|
|
Csio.Read (F, S, Last, From => 3);
|
303 |
|
|
Csio.Read (F, S, Last, From => 28);
|
304 |
|
|
|
305 |
|
|
Csio.Set_Mode (F, Stream_Io.Append_File);
|
306 |
|
|
Csio.Write (F, (1 .. 5 => 88));
|
307 |
|
|
|
308 |
|
|
Csio.Close (F);
|
309 |
|
|
|
310 |
|
|
Csio.Open (F, Name => Name, Mode => Stream_Io.Append_File);
|
311 |
|
|
Csio.Write (F, (1 .. 3 => 33));
|
312 |
|
|
|
313 |
|
|
Csio.Set_Mode (F, Stream_Io.In_File);
|
314 |
|
|
Csio.Read (F, S, Last, From => 20);
|
315 |
|
|
Csio.Read (F, S, Last);
|
316 |
|
|
Csio.Reset (F, Stream_Io.Out_File);
|
317 |
|
|
|
318 |
|
|
Csio.Write (F, (1 .. 9 => 99));
|
319 |
|
|
|
320 |
|
|
-- Check the contents of the entire file.
|
321 |
|
|
declare
|
322 |
|
|
S : Stream_Element_Array
|
323 |
|
|
(1 .. Stream_Element_Offset
|
324 |
|
|
(Stream_Io.Size (Csio.Stream_Io_File (F))));
|
325 |
|
|
begin
|
326 |
|
|
Csio.Reset (F, Stream_Io.In_File);
|
327 |
|
|
Csio.Read (F, S, Last);
|
328 |
|
|
end;
|
329 |
|
|
|
330 |
|
|
Csio.Delete (F);
|
331 |
|
|
end;
|
332 |
|
|
|
333 |
|
|
Result;
|
334 |
|
|
exception
|
335 |
|
|
when Incomplete =>
|
336 |
|
|
Report.Result;
|
337 |
|
|
when E:others =>
|
338 |
|
|
Report.Failed ("Unexpected exception raised - " & Exception_Name (E) &
|
339 |
|
|
" - " & Exception_Message (E));
|
340 |
|
|
Report.Result;
|
341 |
|
|
|
342 |
|
|
end CXAC005;
|
343 |
|
|
|