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author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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1 -- CXAA002.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 procedures New_Page, Set_Line, Set_Col, and New_Line
28 -- subprograms perform properly on a text file created with mode
29 -- Append_File.
30 -- Check that the attributes Page, Line, and Column are all set to 1
31 -- following the creation of a text file with mode Append_File.
32 -- Check that the functions Page, Line, and Col perform properly on a
33 -- text file created with mode Append_File.
34 -- Check that the procedures Put and Put_Line perform properly on text
35 -- files created with mode Append_File.
36 -- Check that the procedure Set_Line sets the current line number to
37 -- the value specified by the parameter "To" for text files created with
38 -- mode Append_File.
39 -- Check that the procedure Set_Col sets the current column number to
40 -- the value specified by the parameter "To" for text files created with
41 -- mode Append_File.
42 --
43 -- TEST DESCRIPTION:
44 -- This test is designed to simulate the text processing that could
45 -- occur with files that have been created in Append_File mode. Various
46 -- calls to Text_IO formatting subprograms are called to properly
47 -- position text appended to a document. The text content and position
48 -- are subsequently verified for accuracy.
49 --
50 -- APPLICABILITY CRITERIA:
51 -- This test is applicable only to implementations that support text
52 -- files.
53 --
54 --
55 -- CHANGE HISTORY:
56 -- 06 Dec 94 SAIC ACVC 2.0
57 -- 27 Feb 97 PWB.CTA Allowed for non-support of some IO operations
58
59 --!
60
61 with Ada.Text_IO;
62 with Report;
63
64 procedure CXAA002 is
65 use Ada;
66 Data_File : Text_IO.File_Type;
67 Data_Filename : constant String :=
68 Report.Legal_File_Name ( Nam => "CXAA002" );
69 Incomplete : exception;
70 begin
71
72 Report.Test ("CXAA002", "Check that page, line, and column formatting " &
73 "subprograms perform properly on text files " &
74 "created with mode Append_File");
75
76 Test_for_Text_IO_Support:
77 begin
78
79 -- An implementation that does not support Text_IO in a particular
80 -- environment will raise Use_Error on calls to various
81 -- Text_IO operations. This block statement encloses a call to
82 -- Create, which should raise the exception in a non-supportive
83 -- environment. This exception will be handled to produce a
84 -- Not_Applicable result.
85
86 Text_IO.Create (File => Data_File,
87 Mode => Text_IO.Append_File,
88 Name => Data_Filename);
89
90 exception
91
92 when Text_IO.Use_Error | Text_IO.Name_Error =>
93 Report.Not_Applicable
94 ( "Files not supported - Create as Append_File for Text_IO" );
95 raise Incomplete;
96
97 end Test_for_Text_IO_Support;
98
99 Operational_Test_Block:
100 declare
101 Default_Position : constant Text_IO.Positive_Count := 1;
102 Section_Header : constant String := "VII. ";
103 Appendix_Title : constant String := "Appendix A";
104 Appendix_Content : constant String := "TBD";
105
106 -- The following procedure simulates the addition of an Appendix page
107 -- to an existing text file.
108 procedure Position_Appendix_Text is
109 use Text_IO; -- To provide visibility to the "/=" operator.
110 begin
111
112 -- Test control code.
113 -- Verify initial page, line, column number.
114 if "/="(Text_IO.Page (Data_File), Default_Position) then
115 Report.Failed ("Incorrect default page number");
116 end if;
117 if Text_IO.Line (Data_File) /= Default_Position then
118 Report.Failed ("Incorrect default line number");
119 end if;
120 if "/="(Text_IO.Col (Data_File), Default_Position) then
121 Report.Failed ("Incorrect default column number");
122 end if;
123
124 -- Simulated usage code.
125 -- Set new page/line positions.
126 Text_IO.Put_Line
127 (Data_File, "Add some optional data to the file here");
128 Text_IO.New_Page (Data_File);
129 Text_IO.New_Line (File => Data_File, Spacing => 2);
130
131 -- Test control code.
132 if Integer(Text_IO.Page (Data_File)) /= Report.Ident_Int(2) or else
133 Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(3) then
134 Report.Failed ("Incorrect results from page/line positioning");
135 end if;
136
137 -- Simulated usage code.
138 Text_IO.Put (Data_File, Section_Header); -- Position title
139 Text_IO.Put_Line (Data_File, Appendix_Title); -- of Appendix.
140
141 Text_IO.Set_Line (File => Data_File, To => 5); -- Set new
142 Text_IO.Set_Col (File => Data_File, To => 8); -- position.
143
144 -- Test control code.
145 if (Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(5)) or
146 (Integer(Text_IO.Col (Data_File)) /= Report.Ident_Int(8)) then
147 Report.Failed ("Incorrect results from line/column positioning");
148 end if;
149
150 -- Simulated usage code. -- Position
151 Text_IO.Put_Line (Data_File, Appendix_Content); -- content of
152 -- Appendix.
153 end Position_Appendix_Text;
154
155 begin
156
157 -- This code section simulates a scenario that could occur in a
158 -- text processing environment:
159 -- A document is created/modified/edited Then...
160 -- Text is to be appended to the document.
161 -- A procedure is called to perform that operation.
162 -- The position on the appended page is set, verified, and text is
163 -- appended to the existing file.
164 --
165 -- Note: The text file has been originally created in Append_File
166 -- mode, and has not been closed prior to this processing.
167
168 Position_Appendix_Text;
169
170 Test_Verification_Block:
171 declare
172 TC_Page,
173 TC_Line,
174 TC_Column : Text_IO.Positive_Count;
175 TC_Position : Natural := 0;
176 Blanks : constant String := " ";
177 TC_String : String (1 .. 17) := Blanks;
178 begin
179
180 Reset1:
181 begin
182 Text_IO.Reset (Data_File, Text_IO.In_File);
183 exception
184 when Text_IO.Use_Error =>
185 Report.Not_Applicable
186 ( "Reset to In_File not supported for Text_IO" );
187 raise Incomplete;
188 end Reset1;
189
190 Text_IO.Skip_Page (Data_File);
191 -- Loop to the third line
192 for I in 1 .. 3 loop -- and read the contents.
193 Text_IO.Get_Line (Data_File, TC_String, TC_Position);
194 end loop;
195
196 if (TC_Position /= 16) or else -- Verify the title line.
197 (TC_String (1..4) /= "VII.") or else
198 (TC_String (3..16) /= ("I. " & Appendix_Title)) then
199 Report.Failed ("Incorrect positioning of title line");
200 end if;
201
202 TC_String := Blanks; -- Clear string.
203 -- Loop to the fifth line
204 for I in 4 .. 5 loop -- and read the contents.
205 Text_IO.Get_Line (Data_File, TC_String, TC_Position);
206 end loop;
207
208 if (TC_Position /= 10) or -- Verify the contents.
209 (TC_String (8..10) /= Appendix_Content) then
210 Report.Failed ("Incorrect positioning of contents line");
211 end if;
212
213 exception
214
215 when Incomplete =>
216 raise;
217
218 when others =>
219 Report.Failed ("Error raised during data verification");
220
221 end Test_Verification_Block;
222
223 exception
224
225 when Incomplete =>
226 raise;
227
228 when others =>
229 Report.Failed ("Exception raised during Text_IO processing");
230
231 end Operational_Test_Block;
232
233 Deletion:
234 begin
235 -- Delete the external file.
236 if Text_IO.Is_Open(Data_File) then
237 Text_IO.Delete(Data_File);
238 else
239 Text_IO.Open(Data_File, Text_IO.In_File, Data_Filename);
240 Text_IO.Delete(Data_File);
241 end if;
242 exception
243 when others =>
244 Report.Failed
245 ( "Delete not properly implemented for Text_IO" );
246 end Deletion;
247
248 Report.Result;
249
250 exception
251 when Incomplete =>
252 Report.Result;
253 when others =>
254 Report.Failed ( "Unexpected exception" );
255 Report.Result;
256
257 end CXAA002;