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1 -- CXAA002.A
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2 --
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 --
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26 -- OBJECTIVE:
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27 -- Check that the procedures New_Page, Set_Line, Set_Col, and New_Line
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28 -- subprograms perform properly on a text file created with mode
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29 -- Append_File.
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30 -- Check that the attributes Page, Line, and Column are all set to 1
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31 -- following the creation of a text file with mode Append_File.
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32 -- Check that the functions Page, Line, and Col perform properly on a
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33 -- text file created with mode Append_File.
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34 -- Check that the procedures Put and Put_Line perform properly on text
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35 -- files created with mode Append_File.
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36 -- Check that the procedure Set_Line sets the current line number to
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37 -- the value specified by the parameter "To" for text files created with
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38 -- mode Append_File.
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39 -- Check that the procedure Set_Col sets the current column number to
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40 -- the value specified by the parameter "To" for text files created with
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41 -- mode Append_File.
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42 --
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43 -- TEST DESCRIPTION:
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44 -- This test is designed to simulate the text processing that could
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45 -- occur with files that have been created in Append_File mode. Various
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46 -- calls to Text_IO formatting subprograms are called to properly
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47 -- position text appended to a document. The text content and position
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48 -- are subsequently verified for accuracy.
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49 --
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50 -- APPLICABILITY CRITERIA:
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51 -- This test is applicable only to implementations that support text
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52 -- files.
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53 --
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54 --
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55 -- CHANGE HISTORY:
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56 -- 06 Dec 94 SAIC ACVC 2.0
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57 -- 27 Feb 97 PWB.CTA Allowed for non-support of some IO operations
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58
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59 --!
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60
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61 with Ada.Text_IO;
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62 with Report;
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63
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64 procedure CXAA002 is
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65 use Ada;
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66 Data_File : Text_IO.File_Type;
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67 Data_Filename : constant String :=
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68 Report.Legal_File_Name ( Nam => "CXAA002" );
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69 Incomplete : exception;
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70 begin
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71
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72 Report.Test ("CXAA002", "Check that page, line, and column formatting " &
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73 "subprograms perform properly on text files " &
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74 "created with mode Append_File");
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75
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76 Test_for_Text_IO_Support:
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77 begin
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78
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79 -- An implementation that does not support Text_IO in a particular
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80 -- environment will raise Use_Error on calls to various
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81 -- Text_IO operations. This block statement encloses a call to
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82 -- Create, which should raise the exception in a non-supportive
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83 -- environment. This exception will be handled to produce a
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84 -- Not_Applicable result.
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85
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86 Text_IO.Create (File => Data_File,
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87 Mode => Text_IO.Append_File,
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88 Name => Data_Filename);
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89
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90 exception
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91
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92 when Text_IO.Use_Error | Text_IO.Name_Error =>
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93 Report.Not_Applicable
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94 ( "Files not supported - Create as Append_File for Text_IO" );
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95 raise Incomplete;
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96
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97 end Test_for_Text_IO_Support;
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98
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99 Operational_Test_Block:
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100 declare
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101 Default_Position : constant Text_IO.Positive_Count := 1;
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102 Section_Header : constant String := "VII. ";
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103 Appendix_Title : constant String := "Appendix A";
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104 Appendix_Content : constant String := "TBD";
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105
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106 -- The following procedure simulates the addition of an Appendix page
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107 -- to an existing text file.
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108 procedure Position_Appendix_Text is
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109 use Text_IO; -- To provide visibility to the "/=" operator.
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110 begin
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111
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112 -- Test control code.
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113 -- Verify initial page, line, column number.
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114 if "/="(Text_IO.Page (Data_File), Default_Position) then
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115 Report.Failed ("Incorrect default page number");
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116 end if;
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117 if Text_IO.Line (Data_File) /= Default_Position then
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118 Report.Failed ("Incorrect default line number");
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119 end if;
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120 if "/="(Text_IO.Col (Data_File), Default_Position) then
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121 Report.Failed ("Incorrect default column number");
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122 end if;
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123
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124 -- Simulated usage code.
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125 -- Set new page/line positions.
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126 Text_IO.Put_Line
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127 (Data_File, "Add some optional data to the file here");
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128 Text_IO.New_Page (Data_File);
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129 Text_IO.New_Line (File => Data_File, Spacing => 2);
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130
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131 -- Test control code.
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132 if Integer(Text_IO.Page (Data_File)) /= Report.Ident_Int(2) or else
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133 Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(3) then
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134 Report.Failed ("Incorrect results from page/line positioning");
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135 end if;
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136
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137 -- Simulated usage code.
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138 Text_IO.Put (Data_File, Section_Header); -- Position title
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139 Text_IO.Put_Line (Data_File, Appendix_Title); -- of Appendix.
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140
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141 Text_IO.Set_Line (File => Data_File, To => 5); -- Set new
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142 Text_IO.Set_Col (File => Data_File, To => 8); -- position.
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143
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144 -- Test control code.
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145 if (Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(5)) or
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146 (Integer(Text_IO.Col (Data_File)) /= Report.Ident_Int(8)) then
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147 Report.Failed ("Incorrect results from line/column positioning");
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148 end if;
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149
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150 -- Simulated usage code. -- Position
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151 Text_IO.Put_Line (Data_File, Appendix_Content); -- content of
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152 -- Appendix.
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153 end Position_Appendix_Text;
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154
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155 begin
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156
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157 -- This code section simulates a scenario that could occur in a
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158 -- text processing environment:
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159 -- A document is created/modified/edited Then...
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160 -- Text is to be appended to the document.
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161 -- A procedure is called to perform that operation.
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162 -- The position on the appended page is set, verified, and text is
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163 -- appended to the existing file.
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164 --
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165 -- Note: The text file has been originally created in Append_File
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166 -- mode, and has not been closed prior to this processing.
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167
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168 Position_Appendix_Text;
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169
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170 Test_Verification_Block:
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171 declare
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172 TC_Page,
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173 TC_Line,
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174 TC_Column : Text_IO.Positive_Count;
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175 TC_Position : Natural := 0;
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176 Blanks : constant String := " ";
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177 TC_String : String (1 .. 17) := Blanks;
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178 begin
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179
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180 Reset1:
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181 begin
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182 Text_IO.Reset (Data_File, Text_IO.In_File);
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183 exception
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184 when Text_IO.Use_Error =>
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185 Report.Not_Applicable
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186 ( "Reset to In_File not supported for Text_IO" );
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187 raise Incomplete;
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188 end Reset1;
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189
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190 Text_IO.Skip_Page (Data_File);
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191 -- Loop to the third line
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192 for I in 1 .. 3 loop -- and read the contents.
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193 Text_IO.Get_Line (Data_File, TC_String, TC_Position);
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194 end loop;
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195
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196 if (TC_Position /= 16) or else -- Verify the title line.
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197 (TC_String (1..4) /= "VII.") or else
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198 (TC_String (3..16) /= ("I. " & Appendix_Title)) then
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199 Report.Failed ("Incorrect positioning of title line");
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200 end if;
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201
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202 TC_String := Blanks; -- Clear string.
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203 -- Loop to the fifth line
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204 for I in 4 .. 5 loop -- and read the contents.
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205 Text_IO.Get_Line (Data_File, TC_String, TC_Position);
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206 end loop;
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207
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208 if (TC_Position /= 10) or -- Verify the contents.
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209 (TC_String (8..10) /= Appendix_Content) then
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210 Report.Failed ("Incorrect positioning of contents line");
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211 end if;
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212
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213 exception
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214
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215 when Incomplete =>
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216 raise;
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217
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218 when others =>
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219 Report.Failed ("Error raised during data verification");
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220
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221 end Test_Verification_Block;
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222
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223 exception
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224
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225 when Incomplete =>
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226 raise;
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227
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228 when others =>
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229 Report.Failed ("Exception raised during Text_IO processing");
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230
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231 end Operational_Test_Block;
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232
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233 Deletion:
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234 begin
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235 -- Delete the external file.
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236 if Text_IO.Is_Open(Data_File) then
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237 Text_IO.Delete(Data_File);
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238 else
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239 Text_IO.Open(Data_File, Text_IO.In_File, Data_Filename);
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240 Text_IO.Delete(Data_File);
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241 end if;
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242 exception
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243 when others =>
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244 Report.Failed
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245 ( "Delete not properly implemented for Text_IO" );
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246 end Deletion;
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247
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248 Report.Result;
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249
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250 exception
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251 when Incomplete =>
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252 Report.Result;
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253 when others =>
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254 Report.Failed ( "Unexpected exception" );
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255 Report.Result;
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256
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257 end CXAA002;
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