| -- 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; |
