-- CXAA009.A -- -- Grant of Unlimited Rights -- -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained -- unlimited rights in the software and documentation contained herein. -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making -- this public release, the Government intends to confer upon all -- recipients unlimited rights equal to those held by the Government. -- These rights include rights to use, duplicate, release or disclose the -- released technical data and computer software in whole or in part, in -- any manner and for any purpose whatsoever, and to have or permit others -- to do so. -- -- DISCLAIMER -- -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A -- PARTICULAR PURPOSE OF SAID MATERIAL. --* -- -- OBJECTIVE: -- Check that the capabilities provided in instantiations of the -- Ada.Text_IO.Float_IO package operate correctly when the mode of -- the file is Append_File. Check that Float_IO procedures Put and Get -- properly transfer floating point data to/from data files that are in -- Append_File mode. Check that the formatting parameters available in -- the package can be used and modified successfully in the appending and -- retrieval of data. -- -- TEST DESCRIPTION: -- This test is designed to simulate an environment where a data file -- that holds floating point information is created, written to, and -- closed. In the future, the file can be reopened in Append_File mode, -- additional data can be appended to it, and then closed. This process -- of Open/Append/Close can be repeated as necessary. All data written -- to the file is verified for accuracy when retrieved from the file. -- -- This test verifies issues of create in Append_File mode, appending to -- a file previously appended to, opening in Append_File mode, resetting -- from Append_File mode to In_File mode, as well as a variety of Text_IO -- and Float_IO predefined subprograms. -- -- APPLICABILITY CRITERIA: -- This test is applicable only to implementations that support text -- files. -- -- -- CHANGE HISTORY: -- 06 Dec 94 SAIC ACVC 2.0 -- 25 Feb 97 PWB.CTA Allowed for non-support of some IO operations --! with Ada.Text_IO; with Report; procedure CXAA009 is use Ada; Loan_File : Text_IO.File_Type; Loan_Filename : constant String := Report.Legal_File_Name ( Nam => "CXAA009" ); Incomplete : exception; begin Report.Test ("CXAA009", "Check that the capabilities of " & "Text_IO.Float_IO operate correctly for files " & "with mode Append_File"); Test_for_Text_IO_Support: begin -- An implementation that does not support Text_IO in a particular -- environment will raise Use_Error on calls to various -- Text_IO operations. This block statement encloses a call to -- Create, which should raise the exception in a non-supportive -- environment. This exception will be handled to produce a -- Not_Applicable result. Text_IO.Create (File => Loan_File, -- Create in Mode => Text_IO.Out_File, -- Out_File mode. Name => Loan_Filename); exception when Text_IO.Use_Error | Text_IO.Name_Error => Report.Not_Applicable ( "Files not supported - Create as Out_File for Text_IO" ); raise Incomplete; end Test_for_Text_IO_Support; Operational_Test_Block: declare Total_Loans_Outstanding : constant Natural := 3; Transaction_Status : Boolean := False; type Account_Balance_Type is digits 6 range 0.0 .. 1.0E6; type Loan_Balance_Type is digits 6; type Interest_Rate_Type is digits 4 range 0.0 .. 30.00; type Loan_Info_Type is record Account_Balance : Account_Balance_Type := 0.00; Loan_Balance : Loan_Balance_Type := 0.00; Loan_Interest_Rate : Interest_Rate_Type := 0.00; end record; Home_Refinance_Loan : Loan_Info_Type := (14_500.00, 135_000.00, 6.875); Line_Of_Credit_Loan : Loan_Info_Type := ( 5490.00, -3000.00, 13.75); Small_Business_Loan : Loan_Info_Type := (Account_Balance => 45_000.00, Loan_Balance => 10_500.00, Loan_Interest_Rate => 5.875); package Acct_IO is new Text_IO.Float_IO (Account_Balance_Type); package Loan_IO is new Text_IO.Float_IO (Loan_Balance_Type); package Rate_IO is new Text_IO.Float_IO (Interest_Rate_Type); -- The following procedure performs the addition of loan information -- into a data file. Boolean status of True is returned if all of -- the data entry was successful, False otherwise. -- This demonstrates use of Float_IO using a variety of data formats. procedure Update_Loan_Info (The_File : in out Text_IO.File_Type; The_Loan : in Loan_Info_Type; Status : out Boolean ) is begin Acct_IO.Put (The_File, The_Loan.Account_Balance); Loan_IO.Put (The_File, The_Loan.Loan_Balance, 15, 2, 0); Rate_IO.Put (File => The_File, Item => The_Loan.Loan_Interest_Rate, Fore => 6, Aft => 3, Exp => 0); Text_IO.New_Line (The_File); Status := True; exception when others => Status := False; end Update_Loan_Info; begin -- This code section simulates a bank maintaining a data file -- containing information on loans that have been made. -- The scenario: -- The loan file was created in Out_File mode. -- Some number of data records are added. -- The file is closed. -- The file is subsequently reopened in Append_File mode. -- Data is appended to the file. -- The file is closed. -- Repeat the Open/Append/Close process as required. -- Verify data in the file. -- etc. Update_Loan_Info(Loan_File, Home_Refinance_Loan, Transaction_Status); if not Transaction_Status then Report.Failed ("Failure in update of first loan data"); end if; Text_IO.Close (Loan_File); -- When subsequent data items are to be added to the file, the file -- is opened in Append_File mode. Text_IO.Open (Loan_File, -- Open with Text_IO.Append_File, -- Append mode. Loan_Filename); Update_Loan_Info(Loan_File, Line_Of_Credit_Loan, Transaction_Status); if not Transaction_Status then Report.Failed("Failure in update of first loan data"); end if; Text_IO.Close(Loan_File); -- To add additional data to the file, the file -- is again opened in Append_File mode (appending to a file -- previously appended to). Text_IO.Open (Loan_File, -- Open with Text_IO.Append_File, -- Append mode. Loan_Filename); Update_Loan_Info(Loan_File, Small_Business_Loan, Transaction_Status); if not Transaction_Status then Report.Failed("Failure in update of first loan data"); end if; Test_Verification_Block: declare type Ledger_Type is array (1 .. Total_Loans_Outstanding) of Loan_Info_Type; TC_Bank_Ledger : Ledger_Type; TC_Item_Count : Natural := 0; begin Reset1: begin Text_IO.Reset (Loan_File, Text_IO.In_File); -- Reset for -- reading. exception when Text_IO.Use_Error => Report.Not_Applicable ( "Reset to In_File not supported for Text_IO" ); raise Incomplete; end Reset1; while not Text_IO.End_Of_File (Loan_File) loop TC_Item_Count := TC_Item_Count + 1; Acct_IO.Get (Loan_File, TC_Bank_Ledger(TC_Item_Count).Account_Balance); Loan_IO.Get (Loan_File, TC_Bank_Ledger(TC_Item_Count).Loan_Balance, 0); Rate_IO.Get(File => Loan_File, Item => TC_Bank_Ledger(TC_Item_Count).Loan_Interest_Rate, Width => 0); Text_IO.Skip_Line(Loan_File); end loop; -- Verify all of the data fields read from the file. Compare -- with the values that were originally entered into the file. if (TC_Bank_Ledger(1) /= Home_Refinance_Loan) or (TC_Bank_Ledger(2) /= Line_Of_Credit_Loan) or (TC_Bank_Ledger(3) /= Small_Business_Loan) then Report.Failed("Error in data read from file"); end if; if (TC_Item_Count /= Total_Loans_Outstanding) then Report.Failed ("Incorrect number of records read from file"); end if; exception when Incomplete => raise; when others => Report.Failed ("Error raised during data verification"); end Test_Verification_Block; exception when Incomplete => raise; when others => Report.Failed ("Exception in Text_IO.Float_IO processing"); end Operational_Test_Block; Final_Block: begin -- Delete the external file. if Text_IO.Is_Open(Loan_File) then Text_IO.Delete(Loan_File); else Text_IO.Open(Loan_File, Text_IO.In_File, Loan_Filename); Text_IO.Delete(Loan_File); end if; exception when Text_IO.Use_Error => Report.Failed ( "Delete not properly implemented for Text_IO" ); end Final_Block; Report.Result; exception when Incomplete => Report.Result; when others => Report.Failed ( "Unexpected exception" ); Report.Result; end CXAA009;