summaryrefslogtreecommitdiff
path: root/gcc/testsuite/ada/acats/tests/cxa/cxa8002.a
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxa/cxa8002.a
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
Diffstat (limited to 'gcc/testsuite/ada/acats/tests/cxa/cxa8002.a')
-rw-r--r--gcc/testsuite/ada/acats/tests/cxa/cxa8002.a285
1 files changed, 285 insertions, 0 deletions
diff --git a/gcc/testsuite/ada/acats/tests/cxa/cxa8002.a b/gcc/testsuite/ada/acats/tests/cxa/cxa8002.a
new file mode 100644
index 000000000..8670e98ba
--- /dev/null
+++ b/gcc/testsuite/ada/acats/tests/cxa/cxa8002.a
@@ -0,0 +1,285 @@
+-- CXA8002.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 resetting a file using mode Append_File allows for the
+-- writing of elements to the file starting after the last element in
+-- the file.
+-- Check that the result of function Name can be used on a subsequent
+-- reopen of the file.
+-- Check that a mode change occurs on reset of a file to/from mode
+-- Append_File.
+--
+-- TEST DESCRIPTION:
+-- This test simulates the read/write of data from/to an individual
+-- sequential file. New data can be appended to the end of the existing
+-- file, and the same file can be reset to allow reading of data from
+-- the file. This process can occur multiple times.
+-- When the mode of the file is changed with a Reset, the current mode
+-- value assigned to the file is checked using the result of function
+-- Mode. This, in conjunction with the read/write operations, verifies
+-- that a mode change has taken place on Reset.
+--
+-- An expected common usage of the scenarios found in this test would
+-- be a case where a single data file is kept open continuously, being
+-- reset for read/append of data. For systems that do not support a
+-- direct form of I/O, this would allow for efficient use of a sequential
+-- I/O file.
+--
+-- APPLICABILITY CRITERIA:
+-- Applicable to all systems capable of supporting IO operations on
+-- external Sequential_IO files.
+--
+--
+-- CHANGE HISTORY:
+-- 06 Dec 94 SAIC ACVC 2.0
+-- 19 Feb 97 PWB.CTA Fixed handling for file non-support and Reset
+-- non-support.
+--!
+
+with Sequential_IO;
+with Report;
+
+procedure CXA8002 is
+ subtype Employee_Data is String (1 .. 11);
+ package Data_IO is new Sequential_IO (Employee_Data);
+
+ Employee_Data_File : Data_IO.File_Type;
+ Employee_Filename : constant String :=
+ Report.Legal_File_Name (Nam => "CXA8002");
+
+ Incomplete : exception;
+
+begin
+
+ Report.Test ("CXA8002", "Check that resetting a file using mode " &
+ "Append_File allows for the writing of " &
+ "elements to the file starting after the " &
+ "last element in the file");
+
+ Test_for_Sequential_IO_Support:
+ begin
+
+ -- An implementation that does not support Sequential_IO in a particular
+ -- environment will raise Use_Error or Name_Error on calls to various
+ -- Sequential_IO operations. This block statement encloses a call to
+ -- Create, which should produce an exception in a non-supportive
+ -- environment. These exceptions will be handled to produce a
+ -- Not_Applicable result.
+
+ Data_IO.Create (File => Employee_Data_File, -- Create file in
+ Mode => Data_IO.Append_File, -- mode Append_File.
+ Name => Employee_Filename);
+
+ --
+ -- The following portion of code demonstrates the fact that a sequential
+ -- file can be created in Append_File mode, and that data can be written
+ -- to the file.
+ --
+
+ exception
+ when Data_IO.Use_Error | Data_IO.Name_Error =>
+ Report.Not_Applicable
+ ( "Sequential files not supported - Create as Append_File");
+ raise Incomplete;
+ end Test_for_Sequential_IO_Support;
+ Operational_Test_Block:
+ declare
+ Blank_Data : constant Employee_Data := " ";
+ Employee_1 : constant Employee_Data := "123-45-6789";
+ Employee_2 : Employee_Data := "987-65-4321";
+
+ -- Note: Artificial numerical data chosen above to prevent any
+ -- unintended similarity with persons alive or dead.
+
+ TC_Employee_Data : Employee_Data := Blank_Data;
+
+
+ function TC_Mode_Selection (Selector : Integer)
+ return Data_IO.File_Mode is
+ begin
+ case Report.Ident_Int(Selector) is
+ when 1 => return Data_IO.In_File;
+ when 2 => return Data_IO.Out_File;
+ when others => return Data_IO.Append_File;
+ end case;
+ end TC_Mode_Selection;
+
+ Employee_Filename : constant String := -- Use function Name to
+ Data_IO.Name (File => Employee_Data_File); -- store filename in
+ -- string variable.
+ begin
+
+ Data_IO.Write (File => Employee_Data_File, -- Write initial data
+ Item => Employee_1); -- entry to file.
+
+ --
+ -- The following portion of code demonstrates that a sequential file
+ -- can be reset to various file modes, including Append_File mode,
+ -- allowing data to be added to the end of the file.
+ --
+ begin
+ Data_IO.Reset (File => Employee_Data_File, -- Reset file with
+ Mode => Data_IO.In_File); -- mode In_File.
+ exception
+ when Data_IO.Use_Error =>
+ Report.Not_Applicable
+ ("Reset to In_File not supported for Sequential_IO");
+ raise Incomplete;
+ when others =>
+ Report.Failed
+ ("Unexpected exception on Reset to In_File (Sequential_IO)");
+ raise Incomplete;
+ end;
+ if Data_IO."="(Data_IO.Mode (Employee_Data_File),
+ TC_Mode_Selection (1)) then -- Compare In_File mode
+ -- Reset successful,
+ Data_IO.Read (File => Employee_Data_File, -- now verify file data.
+ Item => TC_Employee_Data);
+
+ if ((TC_Employee_Data (1 .. 7) /= "123-45-") or
+ (TC_Employee_Data (5 .. 11) /= "45-6789")) then
+ Report.Failed ("Data read error");
+ end if;
+
+ else
+ Report.Failed ("File mode not changed by Reset");
+ end if;
+
+ --
+ -- Simulate appending data to a file that has previously been written
+ -- to and read from.
+ --
+ begin
+ Data_IO.Reset (File => Employee_Data_File, -- Reset file with
+ Mode => Data_IO.Append_File); -- mode Append_File.
+ exception
+ when Data_IO.Use_Error =>
+ Report.Not_Applicable
+ ("Reset to Append_File not supported for Sequential_IO");
+ raise Incomplete;
+ when others =>
+ Report.Failed
+ ("Unexpected exception on Reset to Append_File (Sequential_IO)");
+ raise Incomplete;
+ end;
+
+ if Data_IO.Is_Open (Employee_Data_File) then -- File remains open
+ -- following Reset to
+ -- Append_File mode?
+
+ if Data_IO."=" (Data_IO.Mode (Employee_Data_File),
+ TC_Mode_Selection (3)) then -- Compare to
+ -- Append_File mode.
+ Data_IO.Write (File => Employee_Data_File, -- Write additional
+ Item => Employee_2); -- data to file.
+ else
+ Report.Failed ("File mode not changed by Reset");
+ end if;
+
+ else
+ Report.Failed
+ ("File status not Open following Reset to Append mode");
+ end if;
+
+ Data_IO.Close (Employee_Data_File);
+
+
+ Test_Verification_Block:
+ begin
+
+ Data_IO.Open (File => Employee_Data_File, -- Reopen file, using
+ Mode => Data_IO.In_File, -- previous result of
+ Name => Employee_Filename); -- function Name.
+
+ TC_Employee_Data := Blank_Data; -- Clear record field.
+ Data_IO.Read (Employee_Data_File, -- Read first record,
+ TC_Employee_Data); -- check ordering of
+ -- records.
+
+ if not ((TC_Employee_Data (1 .. 3) = "123") and then
+ (TC_Employee_Data (4 .. 11) = "-45-6789")) then
+ Report.Failed ("Data read error - first record");
+ end if;
+
+ TC_Employee_Data := Blank_Data; -- Clear record field.
+ Data_IO.Read (Employee_Data_File, -- Read second record,
+ TC_Employee_Data); -- check for ordering of
+ -- records.
+
+ if ((TC_Employee_Data (1 .. 6) /= "987-65") or else
+ not (TC_Employee_Data (3 .. 11) = "7-65-4321")) then
+ Report.Failed ("Data read error - second record");
+ end if;
+
+ -- Check that only two items were written to the file.
+ if not Data_IO.End_Of_File(Employee_Data_File) then
+ Report.Failed("Incorrect number of records in file");
+ end if;
+
+ exception
+
+ when Data_IO.End_Error => -- If two items not in
+ -- file (data overwritten),
+ -- then fail.
+ Report.Failed ("Incorrect number of record elements in file");
+
+ when others =>
+ Report.Failed ("Error raised during data verification");
+
+ end Test_Verification_Block;
+
+ exception
+
+ when others =>
+ Report.Failed("Exception raised during Sequential_IO processing");
+
+ end Operational_Test_Block;
+
+ Final_Block:
+ begin
+ -- Check that file is open prior to deleting it.
+ if Data_IO.Is_Open(Employee_Data_File) then
+ Data_IO.Delete (Employee_Data_File);
+ else
+ Data_IO.Open(Employee_Data_File,
+ Data_IO.In_File,
+ Employee_Filename);
+ Data_IO.Delete (Employee_Data_File);
+ end if;
+ exception
+ when others =>
+ Report.Failed ("Sequential_IO Delete not properly supported");
+ end Final_Block;
+
+ Report.Result;
+
+exception
+ when Incomplete =>
+ Report.Result;
+ when others =>
+ Report.Failed ("Unexpected exception");
+ Report.Result;
+end CXA8002;