1-- CXAA009.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 capabilities provided in instantiations of the 28-- Ada.Text_IO.Float_IO package operate correctly when the mode of 29-- the file is Append_File. Check that Float_IO procedures Put and Get 30-- properly transfer floating point data to/from data files that are in 31-- Append_File mode. Check that the formatting parameters available in 32-- the package can be used and modified successfully in the appending and 33-- retrieval of data. 34-- 35-- TEST DESCRIPTION: 36-- This test is designed to simulate an environment where a data file 37-- that holds floating point information is created, written to, and 38-- closed. In the future, the file can be reopened in Append_File mode, 39-- additional data can be appended to it, and then closed. This process 40-- of Open/Append/Close can be repeated as necessary. All data written 41-- to the file is verified for accuracy when retrieved from the file. 42-- 43-- This test verifies issues of create in Append_File mode, appending to 44-- a file previously appended to, opening in Append_File mode, resetting 45-- from Append_File mode to In_File mode, as well as a variety of Text_IO 46-- and Float_IO predefined subprograms. 47-- 48-- APPLICABILITY CRITERIA: 49-- This test is applicable only to implementations that support text 50-- files. 51-- 52-- 53-- CHANGE HISTORY: 54-- 06 Dec 94 SAIC ACVC 2.0 55-- 25 Feb 97 PWB.CTA Allowed for non-support of some IO operations 56--! 57 58with Ada.Text_IO; 59with Report; 60 61procedure CXAA009 is 62 63 use Ada; 64 Loan_File : Text_IO.File_Type; 65 Loan_Filename : constant String := 66 Report.Legal_File_Name ( Nam => "CXAA009" ); 67 Incomplete : exception; 68 69begin 70 71 Report.Test ("CXAA009", "Check that the capabilities of " & 72 "Text_IO.Float_IO operate correctly for files " & 73 "with mode Append_File"); 74 75 Test_for_Text_IO_Support: 76 begin 77 78 -- An implementation that does not support Text_IO in a particular 79 -- environment will raise Use_Error on calls to various 80 -- Text_IO operations. This block statement encloses a call to 81 -- Create, which should raise the exception in a non-supportive 82 -- environment. This exception will be handled to produce a 83 -- Not_Applicable result. 84 85 Text_IO.Create (File => Loan_File, -- Create in 86 Mode => Text_IO.Out_File, -- Out_File mode. 87 Name => Loan_Filename); 88 89 exception 90 91 when Text_IO.Use_Error | Text_IO.Name_Error => 92 Report.Not_Applicable 93 ( "Files not supported - Create as Out_File for Text_IO" ); 94 raise Incomplete; 95 96 end Test_for_Text_IO_Support; 97 98 Operational_Test_Block: 99 declare 100 Total_Loans_Outstanding : constant Natural := 3; 101 Transaction_Status : Boolean := False; 102 103 type Account_Balance_Type is digits 6 range 0.0 .. 1.0E6; 104 type Loan_Balance_Type is digits 6; 105 type Interest_Rate_Type is digits 4 range 0.0 .. 30.00; 106 107 type Loan_Info_Type is record 108 Account_Balance : Account_Balance_Type := 0.00; 109 Loan_Balance : Loan_Balance_Type := 0.00; 110 Loan_Interest_Rate : Interest_Rate_Type := 0.00; 111 end record; 112 113 Home_Refinance_Loan : Loan_Info_Type := 114 (14_500.00, 135_000.00, 6.875); 115 Line_Of_Credit_Loan : Loan_Info_Type := 116 ( 5490.00, -3000.00, 13.75); 117 Small_Business_Loan : Loan_Info_Type := 118 (Account_Balance => 45_000.00, 119 Loan_Balance => 10_500.00, 120 Loan_Interest_Rate => 5.875); 121 122 package Acct_IO is new Text_IO.Float_IO (Account_Balance_Type); 123 package Loan_IO is new Text_IO.Float_IO (Loan_Balance_Type); 124 package Rate_IO is new Text_IO.Float_IO (Interest_Rate_Type); 125 126 127 -- The following procedure performs the addition of loan information 128 -- into a data file. Boolean status of True is returned if all of 129 -- the data entry was successful, False otherwise. 130 -- This demonstrates use of Float_IO using a variety of data formats. 131 132 procedure Update_Loan_Info (The_File : in out Text_IO.File_Type; 133 The_Loan : in Loan_Info_Type; 134 Status : out Boolean ) is 135 begin 136 Acct_IO.Put (The_File, The_Loan.Account_Balance); 137 Loan_IO.Put (The_File, The_Loan.Loan_Balance, 15, 2, 0); 138 Rate_IO.Put (File => The_File, 139 Item => The_Loan.Loan_Interest_Rate, 140 Fore => 6, 141 Aft => 3, 142 Exp => 0); 143 Text_IO.New_Line (The_File); 144 Status := True; 145 exception 146 when others => Status := False; 147 end Update_Loan_Info; 148 149 150 begin 151 152 -- This code section simulates a bank maintaining a data file 153 -- containing information on loans that have been made. 154 -- The scenario: 155 -- The loan file was created in Out_File mode. 156 -- Some number of data records are added. 157 -- The file is closed. 158 -- The file is subsequently reopened in Append_File mode. 159 -- Data is appended to the file. 160 -- The file is closed. 161 -- Repeat the Open/Append/Close process as required. 162 -- Verify data in the file. 163 -- etc. 164 165 Update_Loan_Info(Loan_File, Home_Refinance_Loan, Transaction_Status); 166 167 if not Transaction_Status then 168 Report.Failed ("Failure in update of first loan data"); 169 end if; 170 171 Text_IO.Close (Loan_File); 172 173 -- When subsequent data items are to be added to the file, the file 174 -- is opened in Append_File mode. 175 176 Text_IO.Open (Loan_File, -- Open with 177 Text_IO.Append_File, -- Append mode. 178 Loan_Filename); 179 180 Update_Loan_Info(Loan_File, Line_Of_Credit_Loan, Transaction_Status); 181 182 if not Transaction_Status then 183 Report.Failed("Failure in update of first loan data"); 184 end if; 185 186 Text_IO.Close(Loan_File); 187 188 -- To add additional data to the file, the file 189 -- is again opened in Append_File mode (appending to a file 190 -- previously appended to). 191 192 Text_IO.Open (Loan_File, -- Open with 193 Text_IO.Append_File, -- Append mode. 194 Loan_Filename); 195 196 Update_Loan_Info(Loan_File, Small_Business_Loan, Transaction_Status); 197 198 if not Transaction_Status then 199 Report.Failed("Failure in update of first loan data"); 200 end if; 201 202 Test_Verification_Block: 203 declare 204 type Ledger_Type is 205 array (1 .. Total_Loans_Outstanding) of Loan_Info_Type; 206 TC_Bank_Ledger : Ledger_Type; 207 TC_Item_Count : Natural := 0; 208 begin 209 210 Reset1: 211 begin 212 Text_IO.Reset (Loan_File, Text_IO.In_File); -- Reset for 213 -- reading. 214 exception 215 when Text_IO.Use_Error => 216 Report.Not_Applicable 217 ( "Reset to In_File not supported for Text_IO" ); 218 raise Incomplete; 219 end Reset1; 220 221 while not Text_IO.End_Of_File (Loan_File) loop 222 TC_Item_Count := TC_Item_Count + 1; 223 Acct_IO.Get (Loan_File, 224 TC_Bank_Ledger(TC_Item_Count).Account_Balance); 225 Loan_IO.Get (Loan_File, 226 TC_Bank_Ledger(TC_Item_Count).Loan_Balance, 227 0); 228 Rate_IO.Get(File => Loan_File, 229 Item => 230 TC_Bank_Ledger(TC_Item_Count).Loan_Interest_Rate, 231 Width => 0); 232 Text_IO.Skip_Line(Loan_File); 233 234 end loop; 235 236 -- Verify all of the data fields read from the file. Compare 237 -- with the values that were originally entered into the file. 238 239 if (TC_Bank_Ledger(1) /= Home_Refinance_Loan) or 240 (TC_Bank_Ledger(2) /= Line_Of_Credit_Loan) or 241 (TC_Bank_Ledger(3) /= Small_Business_Loan) then 242 Report.Failed("Error in data read from file"); 243 end if; 244 245 if (TC_Item_Count /= Total_Loans_Outstanding) then 246 Report.Failed ("Incorrect number of records read from file"); 247 end if; 248 249 exception 250 when Incomplete => 251 raise; 252 when others => 253 Report.Failed ("Error raised during data verification"); 254 end Test_Verification_Block; 255 256 exception 257 when Incomplete => 258 raise; 259 when others => 260 Report.Failed ("Exception in Text_IO.Float_IO processing"); 261 end Operational_Test_Block; 262 263 Final_Block: 264 begin 265 -- Delete the external file. 266 if Text_IO.Is_Open(Loan_File) then 267 Text_IO.Delete(Loan_File); 268 else 269 Text_IO.Open(Loan_File, Text_IO.In_File, Loan_Filename); 270 Text_IO.Delete(Loan_File); 271 end if; 272 273 exception 274 275 when Text_IO.Use_Error => 276 Report.Failed 277 ( "Delete not properly implemented for Text_IO" ); 278 279 end Final_Block; 280 281 Report.Result; 282 283exception 284 when Incomplete => 285 Report.Result; 286 when others => 287 Report.Failed ( "Unexpected exception" ); 288 Report.Result; 289 290end CXAA009; 291