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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxa/cxaa015.a | |
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Diffstat (limited to 'gcc/testsuite/ada/acats/tests/cxa/cxaa015.a')
-rw-r--r-- | gcc/testsuite/ada/acats/tests/cxa/cxaa015.a | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/gcc/testsuite/ada/acats/tests/cxa/cxaa015.a b/gcc/testsuite/ada/acats/tests/cxa/cxaa015.a new file mode 100644 index 000000000..919ef05ca --- /dev/null +++ b/gcc/testsuite/ada/acats/tests/cxa/cxaa015.a @@ -0,0 +1,227 @@ +-- CXAA015.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 exception Status_Error is raised when an attempt is +-- made to create or open a file in Append_File mode when the file is +-- already open. +-- Check that the exception Name_Error is raised by procedure Open when +-- attempting to open a file in Append_File mode when the name supplied +-- as the filename does not correspond to an existing external file. +-- +-- TEST DESCRIPTION: +-- A scenario is created that demonstrates the potential for the +-- inappropriate usage of text processing subprograms Create and Open, +-- resulting in the raising of Status_Error and Name_Error exceptions. +-- A count is kept to ensure that each anticipated exception is in fact +-- raised and handled properly. +-- +-- APPLICABILITY CRITERIA: +-- This test is applicable only to implementations that support text +-- files. +-- +-- +-- CHANGE HISTORY: +-- 06 Dec 94 SAIC ACVC 2.0 +-- 28 Feb 97 PWB.CTA Allowed for non-support of some IO operations +--! + +with Ada.Text_IO; +with Report; + +procedure CXAA015 is + use Ada; + Text_File : Text_IO.File_Type; + Text_Filename : constant String := + Report.Legal_File_Name ( Nam => "CXAA015" ); + Incomplete : exception; + +begin + + Report.Test ("CXAA015", "Check that the appropriate exceptions " & + "are raised when procedures Create and " & + "Open are used to inappropriately operate " & + "on files of mode Append_File"); + + Test_for_Text_IO_Support: + begin + +-- An application creates a text file with mode Append_File. +-- Use_Error will be raised if Text_IO operations or external files are not +-- supported. + + Text_IO.Create (Text_File, Text_IO.Append_File, Text_Filename); + exception + + when Text_IO.Use_Error | Text_IO.Name_Error => + Report.Not_Applicable + ( "Files not supported - Create as Append_File for Text_IO" ); + raise Incomplete; + + end Test_for_Text_IO_Support; + + +-- The application writes some amount of data to the file. + + for I in 1 .. 5 loop + Text_IO.Put_Line (Text_File, "Data entered into the file"); + end loop; + + Operational_Test_Block: + declare + TC_Number_Of_Forced_Errors : constant Natural := 3; + TC_Errors : Natural := 0; + begin + + + Test_for_Create: + begin + +-- During the course of its processing, the application may (erroneously) +-- attempt to create the same file already in existence in Append_File mode. +-- This results in the raising of Status_Error. + + Text_IO.Create (Text_File, + Text_IO.Append_File, + Text_Filename); + Report.Failed ("Exception not raised by Create"); + +-- An exception handler present within the application handles the exception +-- and processing can continue. + + exception + when Text_IO.Status_Error => + TC_Errors := TC_Errors + 1; + when others => + Report.Failed("Exception in Create processing"); + end Test_for_Create; + + + First_Test_For_Open: + begin + +-- Again, during the course of its processing, the application incorrectly +-- attempts to Open a file (in Append_File mode) that is already open. + + Text_IO.Open (Text_File, Text_IO.Append_File, Text_Filename); + Report.Failed ("Exception not raised by improper Open - 1"); + +-- Once again, an exception handler present within the application handles +-- the exception and processing continues. + + exception + when Text_IO.Status_Error => + TC_Errors := TC_Errors + 1; + +-- At some point in its processing, the application closes the file that is +-- currently open. + + Text_IO.Close (Text_File); + when others => + Report.Failed("Exception in Open processing - 1"); + end First_Test_For_Open; + + + Open_With_Wrong_Filename: + declare + TC_Wrong_Filename : constant String := + Report.Legal_File_Name(2); + begin + +-- At this point, the application attempts to Open (in Append_File mode) the +-- file used in previous processing, but it attempts this Open using a name +-- string that does not correspond to any existing external file. +-- First make sure the file doesn't exist. (If it did, then the check +-- for open in append mode wouldn't work.) + + Verify_No_File: + begin + Text_IO.Open (Text_File, + Text_IO.In_File, + TC_Wrong_Filename); + exception + when Text_IO.Name_Error => + null; + when others => + Report.Failed ( "Unexpected exception on Open check" ); + end Verify_No_File; + + Delete_No_File: + begin + if Text_IO.Is_Open (Text_File) then + Text_IO.Delete (Text_File); + end if; + exception + when others => + Report.Failed ( "Unexpected exception - Delete check" ); + end Delete_No_File; + + Text_IO.Open (Text_File, + Text_IO.Append_File, + TC_Wrong_Filename); + Report.Failed ("Exception not raised by improper Open - 2"); + +-- An exception handler for the Name_Error, present within the application, +-- catches the exception and processing continues. + + exception + when Text_IO.Name_Error => + TC_Errors := TC_Errors + 1; + when others => + Report.Failed("Exception in Open processing - 2"); + end Open_With_Wrong_Filename; + + + if (TC_Errors /= TC_Number_Of_Forced_Errors) then + Report.Failed ("Incorrect number of exceptions handled"); + end if; + + end Operational_Test_Block; + + Deletion: + begin + -- Delete the external file. + if Text_IO.Is_Open (Text_File) then + Text_IO.Delete (Text_File); + else + Text_IO.Open (Text_File, Text_IO.In_File, Text_Filename); + Text_IO.Delete (Text_File); + end if; + exception + when others => + Report.Failed + ( "Delete not properly implemented for Text_IO" ); + end Deletion; + + Report.Result; + +exception + when Incomplete => + Report.Result; + when others => + Report.Failed ( "Unexpected exception" ); + Report.Result; + +end CXAA015; |