| 1 |
unit Test11; |
| 2 |
|
| 3 |
{$mode objfpc}{$H+} |
| 4 |
|
| 5 |
{Test 11: Event Handling} |
| 6 |
|
| 7 |
{ This tests calling an event handler in response to a database event. |
| 8 |
A simple database is used consisting of a stored procedure only. |
| 9 |
Two cases are tested: event registration before and after DB Open. |
| 10 |
} |
| 11 |
|
| 12 |
interface |
| 13 |
|
| 14 |
uses |
| 15 |
Classes, SysUtils, TestApplication, IBXTestBase, IB, IBEvents, |
| 16 |
IBStoredProc; |
| 17 |
|
| 18 |
const |
| 19 |
aTestID = '11'; |
| 20 |
aTestTitle = 'Event Handling'; |
| 21 |
|
| 22 |
type |
| 23 |
|
| 24 |
{ TTest11 } |
| 25 |
|
| 26 |
TTest11 = class(TIBXTestBase) |
| 27 |
private |
| 28 |
FEvents: TIBEvents; |
| 29 |
FExecProc: TIBStoredProc; |
| 30 |
procedure EventHandler( Sender: TObject; EventName: string; EventCount: longint; |
| 31 |
var CancelAlerts: Boolean); |
| 32 |
protected |
| 33 |
procedure CreateObjects(Application: TTestApplication); override; |
| 34 |
function GetTestID: AnsiString; override; |
| 35 |
function GetTestTitle: AnsiString; override; |
| 36 |
procedure InitTest; override; |
| 37 |
public |
| 38 |
procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override; |
| 39 |
end; |
| 40 |
|
| 41 |
|
| 42 |
implementation |
| 43 |
|
| 44 |
{ TTest11 } |
| 45 |
|
| 46 |
procedure TTest11.EventHandler(Sender: TObject; EventName: string; |
| 47 |
EventCount: longint; var CancelAlerts: Boolean); |
| 48 |
begin |
| 49 |
writeln(OutFile,'Event Handled: ',EventName, ', Count = ',EventCount); |
| 50 |
end; |
| 51 |
|
| 52 |
procedure TTest11.CreateObjects(Application: TTestApplication); |
| 53 |
begin |
| 54 |
inherited CreateObjects(Application); |
| 55 |
FEvents := TIBEvents.Create(Application); |
| 56 |
FEvents.Database := IBDatabase; |
| 57 |
FEvents.OnEventAlert := @EventHandler; |
| 58 |
FEvents.Events.Add('EVENT1'); |
| 59 |
FEvents.Events.Add('EVENT2'); |
| 60 |
FExecProc := TIBStoredProc.Create(Application); |
| 61 |
FExecProc.Database := IBDatabase; |
| 62 |
end; |
| 63 |
|
| 64 |
function TTest11.GetTestID: AnsiString; |
| 65 |
begin |
| 66 |
Result := aTestID; |
| 67 |
end; |
| 68 |
|
| 69 |
function TTest11.GetTestTitle: AnsiString; |
| 70 |
begin |
| 71 |
Result := aTestTitle; |
| 72 |
end; |
| 73 |
|
| 74 |
procedure TTest11.InitTest; |
| 75 |
begin |
| 76 |
IBDatabase.DatabaseName := Owner.GetNewDatabaseName; |
| 77 |
IBDatabase.CreateIfNotExists := true; |
| 78 |
ReadWriteTransaction; |
| 79 |
end; |
| 80 |
|
| 81 |
procedure TTest11.RunTest(CharSet: AnsiString; SQLDialect: integer); |
| 82 |
begin |
| 83 |
writeln(OutFile,'Case #1: Deferred Event Registration'); |
| 84 |
FEvents.DeferredRegister := true; |
| 85 |
IBDatabase.Connected := true; |
| 86 |
try |
| 87 |
IBTransaction.Active := true; |
| 88 |
CheckSynchronize(1); |
| 89 |
FExecProc.StoredProcName := 'CALLEVENT'; |
| 90 |
FExecProc.Prepare; |
| 91 |
FExecProc.Params[0].AsString := 'EVENT1'; |
| 92 |
FExecProc.ExecProc; |
| 93 |
writeln(OutFile,'Event Called'); |
| 94 |
IBTransaction.Commit; |
| 95 |
CheckSynchronize(5); |
| 96 |
finally |
| 97 |
IBDatabase.DropDatabase; |
| 98 |
end; |
| 99 |
writeln(OutFile,'Case #2: Event Registration after DB Open'); |
| 100 |
IBDatabase.Connected := true; |
| 101 |
try |
| 102 |
FEvents.Registered := true; |
| 103 |
IBTransaction.Active := true; |
| 104 |
CheckSynchronize(1); |
| 105 |
FExecProc.StoredProcName := 'CALLEVENT'; |
| 106 |
FExecProc.Prepare; |
| 107 |
FExecProc.Params[0].AsString := 'EVENT2'; |
| 108 |
FExecProc.ExecProc; |
| 109 |
writeln(OutFile,'Event Called'); |
| 110 |
IBTransaction.Commit; |
| 111 |
CheckSynchronize(5); |
| 112 |
FEvents.UnRegisterEvents; |
| 113 |
finally |
| 114 |
IBDatabase.DropDatabase; |
| 115 |
end; |
| 116 |
end; |
| 117 |
|
| 118 |
initialization |
| 119 |
RegisterTest(TTest11); |
| 120 |
|
| 121 |
end. |
| 122 |
|
