| -- CB41001.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 'Identity attribute returns the unique identity of an |
| -- exception. Check that the Raise_Exception procedure can raise an |
| -- exception that is specified through the use of the 'Identity attribute, |
| -- and that Reraise_Occurrence can re-raise an exception occurrence |
| -- using an exception choice parameter. |
| -- |
| -- TEST DESCRIPTION: |
| -- This test uses the capability of the 'Identity attribute, which |
| -- returns the unique identity of an exception, as an Exception_Id |
| -- result. This result is used as an input parameter to the procedure |
| -- Raise_Exception. The exception that results is handled, propagated |
| -- using the Reraise_Occurrence procedure, and handled again. |
| -- The above actions are performed for both a user-defined and a |
| -- predefined exception. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- 11 Nov 96 SAIC ACVC 2.1: Modified Propagate_User_Exception. |
| -- |
| --! |
| |
| with Report; |
| with Ada.Exceptions; |
| |
| procedure CB41001 is |
| |
| begin |
| |
| Report.Test ("CB41001", "Check that the 'Identity attribute returns " & |
| "the unique identity of an exception. Check " & |
| "that the 'Identity attribute is of type " & |
| "Exception_Id. Check that the " & |
| "Raise_Exception procedure can raise an " & |
| "exception that is specified through the " & |
| "use of the 'Identity attribute"); |
| Test_Block: |
| declare |
| |
| Check_Points : constant := 5; |
| |
| type Check_Point_Array_Type is array (1..Check_Points) of Boolean; |
| |
| -- Global array used to track the processing path through the test. |
| TC_Check_Points : Check_Point_Array_Type := (others => False); |
| |
| A_User_Defined_Exception : Exception; |
| An_Exception_ID : Ada.Exceptions.Exception_Id := |
| Ada.Exceptions.Null_Id; |
| |
| procedure Propagate_User_Exception is |
| Hidden_Exception : Exception; |
| begin |
| -- Use the 'Identity function to store the unique identity of a |
| -- user defined exception into a variable of type Exception_Id. |
| |
| An_Exception_ID := A_User_Defined_Exception'Identity; |
| |
| -- Raise this user defined exception using the result of the |
| -- 'Identity attribute. |
| |
| Ada.Exceptions.Raise_Exception(E => An_Exception_Id); |
| |
| Report.Failed("User defined exception not raised by " & |
| "procedure Propagate_User_Exception"); |
| |
| exception |
| when Proc_Excpt : A_User_Defined_Exception => -- Expected exception. |
| begin |
| |
| -- By raising a different exception at this point, the |
| -- information associated with A_User_Defined_Exception must |
| -- be correctly stacked internally. |
| |
| Ada.Exceptions.Raise_Exception(Hidden_Exception'Identity); |
| Report.Failed("Hidden_Exception not raised by " & |
| "procedure Propagate_User_Exception"); |
| exception |
| when others => |
| TC_Check_Points(1) := True; |
| |
| -- Reraise the original exception, which will be propagated |
| -- outside the scope of this procedure. |
| |
| Ada.Exceptions.Reraise_Occurrence(Proc_Excpt); |
| Report.Failed("User defined exception not reraised"); |
| |
| end; |
| |
| when others => |
| Report.Failed("Unexpected exception raised by " & |
| "Procedure Propagate_User_Exception"); |
| end Propagate_User_Exception; |
| |
| begin |
| |
| User_Exception_Block: |
| begin |
| -- Call procedure to raise, handle, and reraise a user defined |
| -- exception. |
| Propagate_User_Exception; |
| |
| Report.Failed("User defined exception not propagated from " & |
| "procedure Propagate_User_Exception"); |
| |
| exception |
| when A_User_Defined_Exception => -- Expected exception. |
| TC_Check_Points(2) := True; |
| when others => |
| Report.Failed |
| ("Unexpected exception handled in User_Exception_Block"); |
| end User_Exception_Block; |
| |
| |
| Predefined_Exception_Block: |
| begin |
| |
| Inner_Block: |
| begin |
| |
| begin |
| -- Use the 'Identity attribute as an input parameter to the |
| -- Raise_Exception procedure. |
| |
| Ada.Exceptions.Raise_Exception(Constraint_Error'Identity); |
| Report.Failed("Constraint_Error not raised in Inner_Block"); |
| |
| exception |
| when Excpt : Constraint_Error => -- Expected exception. |
| TC_Check_Points(3) := True; |
| |
| -- Reraise the exception. |
| Ada.Exceptions.Reraise_Occurrence(X => Excpt); |
| Report.Failed("Predefined exception not raised from " & |
| "within the exception handler - 1"); |
| when others => |
| Report.Failed("Incorrect result from attempt to raise " & |
| "Constraint_Error using the 'Identity " & |
| "attribute - 1"); |
| end; |
| |
| Report.Failed("Constraint_Error not reraised in Inner_Block"); |
| |
| exception |
| when Block_Excpt : Constraint_Error => -- Expected exception. |
| TC_Check_Points(4) := True; |
| |
| -- Reraise the exception in a scope where the exception |
| -- was not originally raised. |
| |
| Ada.Exceptions.Reraise_Occurrence(X => Block_Excpt); |
| Report.Failed("Predefined exception not raised from " & |
| "within the exception handler - 2"); |
| |
| when others => |
| Report.Failed("Incorrect result from attempt to raise " & |
| "Constraint_Error using the 'Identity " & |
| "attribute - 2"); |
| end Inner_Block; |
| |
| Report.Failed("Exception not propagated from Inner_Block"); |
| |
| exception |
| when Constraint_Error => -- Expected exception. |
| TC_Check_Points(5) := True; |
| when others => |
| Report.Failed("Unexpected exception handled after second " & |
| "reraise of Constraint_Error"); |
| end Predefined_Exception_Block; |
| |
| |
| -- Verify the processing path taken through the test. |
| |
| for i in 1..Check_Points loop |
| if not TC_Check_Points(i) then |
| Report.Failed("Incorrect processing path taken through test, " & |
| "didn't pass check point #" & Integer'Image(i)); |
| end if; |
| end loop; |
| |
| exception |
| when others => Report.Failed ("Exception raised in Test_Block"); |
| end Test_Block; |
| |
| Report.Result; |
| |
| end CB41001; |
