-- CXAA011.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 operations of Text_IO.Enumeration_IO perform correctly -- on files of Append_File mode, for instantiations using -- enumeration types. Check that Enumeration_IO procedures Put and Get -- properly transfer enumeration data to/from data files. -- Check that the formatting parameters available in the package can -- be used and modified successfully in the storage and retrieval of data. -- -- TEST DESCRIPTION: -- This test is designed to simulate an environment where a data file -- that holds enumeration type information is reset from it current mode -- to allow the appending of data to the end of the This process -- of Reset/Write 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 resetting a file created in Out_File mode -- to Append_File mode, resetting from Append_File mode to In_File mode, -- as well as a variety of Text_IO and Enumeration_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 CXAA011 is use Ada; Status_Log : Text_IO.File_Type; Status_Log_Filename : constant String := Report.Legal_File_Name ( Nam => "CXAA011" ); Incomplete : exception; begin Report.Test ("CXAA011", "Check that the operations of " & "Text_IO.Enumeration_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 => Status_Log, Mode => Text_IO.Out_File, Name => Status_Log_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 type Days_In_Week is (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday); type Hours_In_Day is (A0000, A0600, P1200, P0600); -- Six hour -- blocks. type Status_Type is (Operational, Off_Line); type Status_Record_Type is record Day : Days_In_Week; Hour : Hours_In_Day; Status : Status_Type; end record; Morning_Reading : Status_Record_Type := (Wednesday, A0600, Operational); Evening_Reading : Status_Record_Type := (Saturday, P0600, Off_Line); package Day_IO is new Text_IO.Enumeration_IO (Days_In_Week); package Hours_IO is new Text_IO.Enumeration_IO (Hours_In_Day); package Status_IO is new Text_IO.Enumeration_IO (Status_Type); -- The following function simulates the hourly recording of equipment -- status. function Record_Status (Reading : Status_Record_Type) return Boolean is use Text_IO; -- To provide visibility to type Type_Set and -- enumeration literal Upper_Case. begin Day_IO.Put (File => Status_Log, Item => Reading.Day, Set => Type_Set'(Upper_Case)); Hours_IO.Put (Status_Log, Reading.Hour, 7); Status_IO.Put (Status_Log, Reading.Status, Width => 8, Set => Lower_Case); Text_IO.New_Line (Status_Log); return (True); exception when others => return False; end Record_Status; begin -- The usage scenario intended is as follows: -- File is created. -- Unrelated/unknown file processing occurs. -- On six hour intervals, file is reset to Append_File mode. -- Data is appended to file. -- Unrelated/unknown file processing resumes. -- Reset/Append process is repeated. Reset1: begin Text_IO.Reset (Status_Log, -- Reset to Text_IO.Append_File); -- Append mode. exception when Text_IO.Use_Error => Report.Not_Applicable ( "Reset to Append_File not supported for Text_IO" ); raise Incomplete; end Reset1; Day_IO.Default_Width := Days_In_Week'Width + 5; -- Default values -- are modifiable. if not Record_Status (Morning_Reading) then -- Enter data. Report.Failed ("Exception occurred during data file update"); end if; Reset2: begin Text_IO.Reset (Status_Log, -- Reset to Text_IO.Append_File); -- Append mode. exception when Text_IO.Use_Error => Report.Not_Applicable ( "Reset to Append_File not supported for Text_IO" ); raise Incomplete; end Reset2; if not Record_Status (Evening_Reading) then -- Enter data. Report.Failed ("Exception occurred during data file update"); end if; Test_Verification_Block: declare TC_Reading1 : Status_Record_Type; TC_Reading2 : Status_Record_Type; begin Reset3: begin Text_IO.Reset (Status_Log, 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 Reset3; Day_IO.Get (Status_Log, TC_Reading1.Day); -- Read data from Hours_IO.Get (Status_Log, TC_Reading1.Hour); -- first record. Status_IO.Get (Status_Log, TC_Reading1.Status); Text_IO.Skip_Line (Status_Log); -- Verify the data read from the file. Compare with the -- record that was originally entered into the file. if (TC_Reading1 /= Morning_Reading) then Report.Failed ("Data error on reading first record"); end if; Day_IO.Get (Status_Log, TC_Reading2.Day); -- Read data from Hours_IO.Get (Status_Log, TC_Reading2.Hour); -- second record. Status_IO.Get (Status_Log, TC_Reading2.Status); Text_IO.Skip_Line (Status_Log); -- Verify all of the data fields read from the file. Compare -- with the values that were originally entered into the file. if (TC_Reading2.Day /= Evening_Reading.Day) or (TC_Reading2.Hour /= Evening_Reading.Hour) or (TC_Reading2.Status /= Evening_Reading.Status) then Report.Failed ("Data error on reading second record"); 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.Enumeration_IO processing"); end Operational_Test_Block; Final_Block: begin -- Delete the external file. if Text_IO.Is_Open (Status_Log) then Text_IO.Delete (Status_Log); else Text_IO.Open (Status_Log, Text_IO.Out_File, Status_Log_Filename); Text_IO.Delete (Status_Log); 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 CXAA011;