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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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unit Test2;
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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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{Test 2: Open the employee database and run a query}
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{ This test opens the employee example databases with the supplied user name/password
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and runs a simple query with no parameters. Note that the password parameter
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is first supplied empty and then updated.
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Both the output metadata and the query plan are printed out, followed by the results of the query.
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A specific employee record is then queried, first using a positional parameter
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and then a parameter by name. In each case, the SQL Parameter metadata is also
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printed followed by the query results.
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Finally, the database is explicitly disconnected.
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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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type
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{ TTest2 }
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TTest2 = class(TFBTestBase)
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private
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procedure DoQuery(Attachment: IAttachment);
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procedure DoScrollableQuery(Attachment: IAttachment);
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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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{ TTest2 }
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procedure TTest2.DoQuery(Attachment: IAttachment);
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var Transaction: ITransaction;
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Statement: IStatement;
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begin
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Transaction := Attachment.StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit);
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PrintTPB(Transaction.getTPB);
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Statement := Attachment.Prepare(Transaction,
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'-- SQL style inline comment' + LineEnding +
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'/* this is a comment */ '+
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'Select First 3 * from EMPLOYEE'
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,3);
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PrintMetaData(Statement.GetMetaData);
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writeln(OutFile,'Plan = ' ,Statement.GetPlan);
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writeln(OutFile,Statement.GetSQLText);
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writeln(OutFile);
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ReportResults(Statement);
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Statement := Attachment.Prepare(Transaction,'Select * from EMPLOYEE Where EMP_NO = ?',3);
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writeln(OutFile,Statement.GetSQLText);
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ParamInfo(Statement.SQLParams);
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Statement.GetSQLParams[0].AsInteger := 8;
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ReportResults(Statement);
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writeln(OutFile,'With param names');
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Statement := Attachment.PrepareWithNamedParameters(Transaction,
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'Select * from EMPLOYEE Where EMP_NO = :EMP_NO',3,false,false,'Test Cursor');
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Statement.SetRetainInterfaces(true);
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try
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writeln(OutFile,Statement.GetSQLText);
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ParamInfo(Statement.SQLParams);
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Statement.GetSQLParams.ByName('EMP_NO').AsInteger := 8;
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ReportResults(Statement,true);
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finally
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Statement.SetRetainInterfaces(false);
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end;
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end;
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procedure TTest2.DoScrollableQuery(Attachment: IAttachment);
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var Transaction: ITransaction;
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Statement: IStatement;
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Results: IResultSet;
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begin
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writeln(Outfile,'Scollable Cursors');
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WriteAttachmentInfo(Attachment);
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Transaction := Attachment.StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit);
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Statement := Attachment.Prepare(Transaction,'Select * from EMPLOYEE order by EMP_NO',3);
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Results := Statement.OpenCursor(true);
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writeln(Outfile,'Do Fetch Next:');
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if Results.FetchNext then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch Last:');
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if Results.FetchLast then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch Prior:');
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if Results.FetchPrior then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch First:');
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if Results.FetchFirst then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch Abs 8 :');
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if Results.FetchAbsolute(8) then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch Relative -2 :');
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if Results.FetchRelative(-2) then
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ReportResult(Results);
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writeln(Outfile,'Do Fetch beyond EOF :');
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if Results.FetchAbsolute(150) then
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ReportResult(Results)
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else
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writeln(Outfile,'Fetch returned false');
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end;
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function TTest2.TestTitle: AnsiString;
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begin
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Result := 'Test 2: Open the employee database and run a query';
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end;
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procedure TTest2.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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try
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Attachment := FirebirdAPI.OpenDatabase(Owner.GetEmployeeDatabaseName,DPB);
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except on e: Exception do
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writeln(OutFile,'Open Database fails ',E.Message);
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end;
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DPB.Find(isc_dpb_password).setAsString(Owner.GetPassword);
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writeln(OutFile,'Opening ',Owner.GetEmployeeDatabaseName);
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Attachment := FirebirdAPI.OpenDatabase(Owner.GetEmployeeDatabaseName,DPB);
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writeln(OutFile,'Database Open, SQL Dialect = ',Attachment.GetSQLDialect);
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DoQuery(Attachment);
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Attachment.Disconnect;
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writeln(OutFile,'Now open the employee database as a local database');
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DPB := FirebirdAPI.AllocateDPB;
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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.Add(isc_dpb_user_name).setAsString(Owner.GetUserName);
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if FirebirdAPI.GetClientMajor < 3 then
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DPB.Add(isc_dpb_password).setAsString(Owner.GetPassword);
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try
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Attachment := FirebirdAPI.OpenDatabase(ExtractDBName(Owner.GetEmployeeDatabaseName),DPB);
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except on e: Exception do
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writeln(OutFile,'Open Local Database fails ',E.Message);
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end;
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DoQuery(Attachment);
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if Attachment.HasScollableCursors then
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DoScrollableQuery(Attachment);
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Attachment.Disconnect;
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end;
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initialization
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RegisterTest(TTest2);
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end.
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|