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tony |
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(*
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* Firebird Interface (fbintf) Test suite. This program is used to
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* test the Firebird Pascal Interface and provide a semi-automated
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* pass/fail check for each test.
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*
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* The contents of this file are subject to the Initial Developer's
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* Public License Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy
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* of the License here:
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*
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Initial Developer of the Original Code is Tony Whyman.
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*
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* The Original Code is (C) 2016 Tony Whyman, MWA Software
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* (http://www.mwasoftware.co.uk).
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*
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* All Rights Reserved.
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*
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* Contributor(s): ______________________________________.
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*
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*)
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tony |
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unit Test10;
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tony |
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{$IFDEF MSWINDOWS}
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{$DEFINE WINDOWS}
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{$ENDIF}
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{$IFDEF FPC}
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{$mode delphi}
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{$codepage utf8}
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{$ENDIF}
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tony |
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{Test 10: Event Handling}
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{
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This test opens the employee example databases with the supplied user name/password
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and then tests event handling.
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1. Simple wait for async event.
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2. Signal two more events to show that events counts are maintained.
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3. Async Event wait followed by signal event. Event Counts should include all
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previous events.
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4. Demonstrate event cancel by waiting for event, cancelling it and then signalling
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event. No change to signal flag after waiting in a tight loop implies event cancelled.
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5. Wait for sync Event.
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}
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interface
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uses
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Classes, SysUtils, TestApplication, FBTestApp, IB;
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tony |
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type
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{ TTest10 }
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TTest10 = class(TFBTestBase)
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private
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FEventSignalled: boolean;
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procedure EventsTest(Attachment: IAttachment);
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procedure EventReport(Sender: IEvents);
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procedure ShowEventReport;
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procedure ShowEventCounts(Intf: IEvents);
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public
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function TestTitle: AnsiString; override;
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procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override;
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end;
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implementation
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{ TTest10 }
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const
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sqlEvent = 'Execute Block As Begin Post_Event(''TESTEVENT''); End';
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procedure TTest10.EventsTest(Attachment: IAttachment);
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var EventHandler: IEvents;
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WaitCount: integer;
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begin
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FEventSignalled := false;
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EventHandler := Attachment.GetEventHandler('TESTEVENT');
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writeln(OutFile,'Call Async Wait');
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EventHandler.AsyncWaitForEvent(EventReport);
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writeln(OutFile,'Async Wait Called');
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sleep(500);
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CheckSynchronize;
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if FEventSignalled then
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begin
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writeln(OutFile,'First Event - usually ignored');
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FEventSignalled := false;
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EventHandler.AsyncWaitForEvent(EventReport);
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sleep(100);
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CheckSynchronize;
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if FEventSignalled then
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begin
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writeln(OutFile,'Unexpected Event 1');
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Exit;
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end;
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end;
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writeln(OutFile,'Signal Event');
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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while not FEventSignalled do Sleep(50);
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ShowEventCounts(EventHandler);
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FEventSignalled := false;
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writeln(OutFile,'Two more events');
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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if FEventSignalled then
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begin
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writeln(OutFile,'Unexpected Event 2');
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FEventSignalled := false
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end;
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writeln(OutFile,'Call Async Wait');
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EventHandler.AsyncWaitForEvent(EventReport);
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writeln(OutFile,'Async Wait Called');
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sleep(500);
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CheckSynchronize;
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if FEventSignalled then
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begin
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writeln(OutFile,'Deferred Events Caught');
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ShowEventCounts(EventHandler);
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FEventSignalled := false;
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EventHandler.AsyncWaitForEvent(EventReport);
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CheckSynchronize;
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sleep(100);
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if FEventSignalled then
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writeln(OutFile,'Unexpected Event 3');
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end;
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writeln(OutFile,'Signal Event');
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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while not FEventSignalled do;
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ShowEventCounts(EventHandler);
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FEventSignalled := false;
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writeln(OutFile,'Async Wait: Test Cancel');
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EventHandler.AsyncWaitForEvent(EventReport);
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CheckSynchronize;
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writeln(OutFile,'Async Wait Called');
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EventHandler.Cancel;
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writeln(OutFile,'Event Cancelled');
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FEventSignalled := false;
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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WaitCount := 100000000;
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while not FEventSignalled and (WaitCount > 0) do Dec(WaitCount);
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if WaitCount = 0 then writeln(OutFile,'Time Out - Cancel Worked!')
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else
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writeln(OutFile,'Event called - so Cancel failed');
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writeln(OutFile,'Sync wait');
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CheckSynchronize;
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Attachment.ExecImmediate([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],sqlEvent);
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EventHandler.WaitForEvent;
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writeln(OutFile,'Event Signalled');
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ShowEventCounts(EventHandler);
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EventHandler := nil;
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CheckSynchronize;
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end;
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procedure TTest10.EventReport(Sender: IEvents);
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begin
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FEventSignalled := true;
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TThread.Synchronize(nil,ShowEventReport);
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end;
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procedure TTest10.ShowEventReport;
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begin
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writeln(OutFile,'Event Signalled');
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end;
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procedure TTest10.ShowEventCounts(Intf: IEvents);
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var
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i: integer;
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EventCounts: TEventCounts;
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begin
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EventCounts := Intf.ExtractEventCounts;
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for i := 0 to length(EventCounts) - 1 do
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writeln(OutFile,'Event Counts: ',EventCounts[i].EventName,', Count = ',EventCounts[i].Count);
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end;
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function TTest10.TestTitle: AnsiString;
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begin
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Result := 'Test 10: Event Handling';
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end;
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procedure TTest10.RunTest(CharSet: AnsiString; SQLDialect: integer);
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var Attachment: IAttachment;
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DPB: IDPB;
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begin
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DPB := FirebirdAPI.AllocateDPB;
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DPB.Add(isc_dpb_user_name).setAsString(Owner.GetUserName);
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DPB.Add(isc_dpb_password).setAsString(' ');
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DPB.Add(isc_dpb_lc_ctype).setAsString(CharSet);
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DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(SQLDialect);
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DPB.Find(isc_dpb_password).setAsString(Owner.GetPassword);
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Attachment := FirebirdAPI.OpenDatabase(Owner.GetEmployeeDatabaseName,DPB);
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EventsTest(Attachment);
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Attachment.Disconnect;
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end;
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initialization
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RegisterTest(TTest10);
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end.
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