Testing tricks

Write a URL protocol-handler that receives web-service calls.
Se older entries:

• Regexp for logging of method calls.
• JNDI in JUnit tests.

Latest debugging techniques for Swing applications: From JavaZone 2008

Regexp for logging of method calls

BeanShell macros (May be run in jEdit)
Copy and paste auto-generated method signature, and run this macro

// rid of tabs, newlines and double spaces
strippSpace( String text ) {
 text    = text.replaceAll( "\\t" , " " );
 text    = text.replaceAll( "\\n?" , "" );
 do {
     text    = text.replaceAll( "  " , " " );
 } while ( text.indexOf( "  " ) > -1 );
 return text;
}

// tidy up method call
cleanCall( String text ) {
 text    = text.replaceAll( "\\(\\s*" , "(\n\t" );
 text    = text.replaceAll( ",\\s*" , ",\n\t" );
 text    = text.replaceAll( "\\s*\\)\\s*" , "\n)" );
 return text;
}

convertMethodSignature2SuperCall( String text ){
 // 2 strings before )
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*\\)\\W*" , "$1 );" );
 // 2 strings before comma
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*,\\W*" , "$1, " );
 // 3 strings before (
 text    = text.replaceAll( "\\A\\s*\\w*\\s?void\\s?(\\w*)\\s*\\(" , "super.$1(" );
 text    = text.replaceAll( "\\A\\s*\\w*\\s?\\w*\\s?(\\w*)\\s*\\(" , "return super.$1(" );
 return text;
}

convertMethodSignature2SillyReturn( String text ){
 // 2 strings before )
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*\\)\\W*" , "$1 );" );
 // 2 strings before comma
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*,\\W*" , "$1, " );
 // 3 strings before (
 text    = text.replaceAll( "\\A\\s*\\w*\\s?void\\s?(\\w*)\\s*\\(" , "" );
 text    = text.replaceAll( "\\A\\s*\\w*\\s?(\\w*)\\s?(\\w*)\\s*\\(" , "return new $1();" );
 return text;
}

convertMethodSignature2LogStatement( String text ){
 // 2 strings before )
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*\\)\\W*" , "\n\t\tSEMAFOR_CALL \"$1\" SEMAFOR_COMMA $1 )\n\t);" );
 // 2 strings before comma
 text    = text.replaceAll( "\\w*\\W?(\\w*)\\W*,\\W*" , "\n\t\tSEMAFOR_CALL \"$1\" SEMAFOR_COMMA $1 )," );
 // 3 strings before parenthesis
 text    = text.replaceAll( "\\A\\s*\\w*\\s?\\w*\\s?(\\w*)\\(" , "\tSEMAFOR_CALL \"$1\" ," );
 // semafors
 text    = text.replaceAll( "SEMAFOR_COMMA" , "," );
 text    = text.replaceAll( "SEMAFOR_CALL" , "toXml(" );
 return text;
}

String text = Macros.input(view,"Method call:");
if(text == null || "".equals(text))
 return;

String text    = strippSpace( text );
String superCall    = convertMethodSignature2SuperCall( text );
String logCall    = convertMethodSignature2LogStatement( text );
String call    = cleanCall( text );
String res    = call + "{\n" + logCall + "\n\t" + superCall + "\n}";

Registers.setRegister('HistoryModel.getModel("clipboard").addItem(res);
view.getStatus().setMessageAndClear("OK - result on clipboard");

Logging methods

public static String toXml( String name, Object value ) {
// FixMe: escape xml special characters
if ( value == null )
   value    = "";
return "\t<" + name + ">" + value.toString() + "";
}
/**  */
public static String toXml( String method, String... items ) {
String msg    = "";
if ( items != null && 0 < msg    = "<">" + msg + "";
System.out.println( msg );
return msg;
},res);
HistoryModel.getModel("clipboard").addItem(res);
view.getStatus().setMessageAndClear("OK - result on clipboard");

Logging methods
public static String toXml( String name, Object value ) {
// FixMe: escape xml special characters
if ( value == null )
   value    = "";
return "\t<" + name + ">" + value.toString() + "";
}
/**  */
public static String toXml( String method, String... items ) {
String msg    = "";
if ( items != null && 0 < msg    = "<">" + msg + "";
System.out.println( msg );
return msg;
}

JNDI in JUnit tests

Sun har også en provider som kan brukes - se jndi-tutorial.
I ended up using Simple-JNDI - simple-jndi, thanks to:
James Strachan's Weblog
Injecting Constants as Spring Bean Properties | Unicon

My setup for lookup-key "java:comp/env/jdbc/ds":

jndi.properties:
java.naming.factory.initial=org.osjava.sj.SimpleContextFactory
org.osjava.sj.root=${project.build.directory}\\test-classes\\jndi
org.osjava.sj.colon.replace=--
org.osjava.sj.delimiter=/

src/test/resources/jndi/java--comp/env/jdbc/ds.properties:
type=javax.sql.DataSource
driver=oracle.jdbc.OracleDriver
url=${db.url}
user=${db.user}
password=${db.password}