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(*
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* IBX Test suite. This program is used to test the IBX non-visual
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* components and provides a semi-automated 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) 2021 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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unit Test18;
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{$mode objfpc}{$H+}
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{Test 18: Cached Updates}
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{ Description
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}
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interface
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uses
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Classes, SysUtils, TestApplication, IBXTestBase, Db, IB, IBCustomDataSet;
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const
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aTestID = '18';
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aTestTitle = 'Cached Updates';
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type
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{ TTest18 }
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TTest18 = class(TIBXTestBase)
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private
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FIBDataset: TIBDataSet;
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procedure HandleUpdateRecord(DataSet: TDataSet; UpdateKind: TUpdateKind;
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var UpdateAction: TIBUpdateAction);
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procedure HandleUpdateError(DataSet: TDataSet; E: EDatabaseError;
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UpdateKind: TUpdateKind; var TheUpdateAction: TIBUpdateAction);
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procedure DoTest(aUnidirectional: boolean);
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protected
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procedure CreateObjects(Application: TTestApplication); override;
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function GetTestID: AnsiString; override;
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function GetTestTitle: AnsiString; override;
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procedure InitTest; override;
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public
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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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{ TTest18 }
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procedure TTest18.HandleUpdateRecord(DataSet: TDataSet;
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UpdateKind: TUpdateKind; var UpdateAction: TIBUpdateAction);
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begin
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writeln(Outfile,'Update Record Called for ',UpdateKind);
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PrintDatasetRow(DataSet);
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UpdateAction := uaApply;
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end;
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procedure TTest18.HandleUpdateError(DataSet: TDataSet; E: EDatabaseError;
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UpdateKind: TUpdateKind; var TheUpdateAction: TIBUpdateAction);
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begin
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writeln(Outfile,'Update Error raised: ',E.Message);
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TheUpdateAction := uaFail;
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end;
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procedure TTest18.DoTest(aUnidirectional: boolean);
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var lastkey: integer;
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begin
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with FIBDataSet do
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begin
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Unidirectional := aUnidirectional;
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Active := true;
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writeln(Outfile,'Unidirectional caching = ',aUnidirectional);
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writeln(OutFile,'Simple Append i.e. caching of inserted records and cancel');
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if aUnidirectional then Insert else Append;
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FieldByName('PlainText').AsString := 'This is a test';
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Post;
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if aUnidirectional then Insert else Append;
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FieldByName('PlainText').AsString := 'This is another test';
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Post;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Cancel Updates');
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CancelUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show empty');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(Outfile);
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writeln(OutFile,'Simple Append i.e. caching of inserted records and apply updates');
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if aUnidirectional then Insert else Append;
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FieldByName('PlainText').AsString := 'This is a test';
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Post;
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if aUnidirectional then Insert else Append;
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FieldByName('PlainText').AsString := 'This is another test';
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Post;
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if aUnidirectional then Insert else Append;
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FieldByName('PlainText').AsString := 'And another';
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Post;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Apply Updates');
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ApplyUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show still there');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile,'Update of First and Last records and cancel');
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First;
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Edit;
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FieldByName('PlainText').AsString := 'This is an updated test';
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Post;
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Last;
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Edit;
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FieldByName('PlainText').AsString := 'This is another updated test';
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Post;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Cancel Updates');
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CancelUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show no change');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile,'Update of First and Last records and apply');
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First;
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Edit;
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FieldByName('PlainText').AsString := 'This is an updated test';
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Post;
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Last;
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Edit;
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FieldByName('PlainText').AsString := 'This is another updated test';
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Post;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Apply Updates');
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ApplyUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show still there');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile,'Update of First and Last records and implicitly apply');
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DataSetCloseAction := dcSaveChanges;
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First;
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Edit;
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FieldByName('PlainText').AsString := 'This is an updated test (implicit apply updates)';
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile,'Delete First and Last records and Cancel');
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First;
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Delete;
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Last;
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Delete;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Cancel Updates');
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CancelUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show no change');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile,'Delete First and Last records and Apply');
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First;
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Delete;
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Last;
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Delete;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Apply Updates');
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ApplyUpdates;
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PrintDataSet(FIBDataSet);
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writeln(Outfile,'Now reopen and show no change');
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Active := false;
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Active := true;
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PrintDataSet(FIBDataSet);
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writeln(OutFile);
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writeln(OutFile, 'Test Error Handling');
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First;
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lastkey := FieldByName('KEYFIELD').AsInteger;
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Append;
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FieldByName('KEYFIELD').AsInteger := lastkey;
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Post;
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PrintDataSet(FIBDataSet);
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try
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ApplyUpdates;
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except on E: Exception do
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writeln(OutFile,'Exception caught: ',E.Message);
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end;
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CancelUpdates;
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end;
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end;
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procedure TTest18.CreateObjects(Application: TTestApplication);
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begin
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inherited CreateObjects(Application);
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FIBDataSet := TIBDataSet.Create(Application);
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with FIBDataSet do
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begin
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Name := 'IBTestData';
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Database := IBDatabase;
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Transaction := IBTransaction;
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SelectSQL.Add('Select * From IBDataSetTest');
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InsertSQL.Add('Insert into IBDataSetTest(KeyField,PlainText) Values (:KeyField,:PlainText)');
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ModifySQL.Add('Update IBDataSetTest Set KeyField = :KeyField, PlainText = :PlainText Where KeyField = :Old_KeyField');
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DeleteSQL.Add('Delete from IBDataSetTest Where KeyField = :old_KeyField');
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RefreshSQL.Add('Select * from IBDataSetTest Where KeyField = :KeyField');
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GeneratorField.Field := 'KeyField';
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GeneratorField.Generator := 'AGENERATOR';
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GeneratorField.Increment := 1;
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CachedUpdates := true;
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OnUpdateRecord := @HandleUpdateRecord;
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OnUpdateError := @HandleUpdateError;
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end;
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end;
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function TTest18.GetTestID: AnsiString;
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begin
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Result := aTestID;
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end;
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function TTest18.GetTestTitle: AnsiString;
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begin
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Result := aTestTitle;
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end;
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procedure TTest18.InitTest;
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begin
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IBDatabase.DatabaseName := Owner.GetNewDatabaseName;
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IBDatabase.CreateIfNotExists := true;
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ReadWriteTransaction;
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end;
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procedure TTest18.RunTest(CharSet: AnsiString; SQLDialect: integer);
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begin
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IBDatabase.CreateDatabase;
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try
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IBTransaction.Active := true;
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DoTest(false);
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// DoTest(true); {See https://bugs.freepascal.org/view.php?id=37900}
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finally
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IBDatabase.DropDatabase;
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end;
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end;
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initialization
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RegisterTest(TTest18);
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end.
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