package org.drools.lang.dsl;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import junit.framework.TestCase;
public class DSLTokenizedMappingFileTest extends TestCase {
private DSLMappingFile file = null;
private final String filename = "test_metainfo.dsl";
protected void setUp() throws Exception {
super.setUp();
}
protected void tearDown() throws Exception {
super.tearDown();
}
public void testParseFile() {
try {
final Reader reader = new InputStreamReader( this.getClass().getResourceAsStream( this.filename ) );
this.file = new DSLTokenizedMappingFile();
final boolean parsingResult = this.file.parseAndLoad( reader );
reader.close();
assertTrue( this.file.getErrors().toString(),
parsingResult );
assertTrue( this.file.getErrors().isEmpty() );
assertEquals( 31,
this.file.getMapping().getEntries().size() );
} catch ( final IOException e ) {
e.printStackTrace();
fail( "Should not raise exception " );
}
}
public void testParseFileWithBrackets() {
String file = "[when]ATTRIBUTE \"{attr}\" IS IN [{list}]=Attribute( {attr} in ({list}) )";
try {
final Reader reader = new StringReader( file );
this.file = new DSLTokenizedMappingFile();
final boolean parsingResult = this.file.parseAndLoad( reader );
reader.close();
assertTrue( this.file.getErrors().toString(),
parsingResult );
assertTrue( this.file.getErrors().isEmpty() );
assertEquals( 1,
this.file.getMapping().getEntries().size() );
DSLMappingEntry entry = (DSLMappingEntry) this.file.getMapping().getEntries().get( 0 );
assertEquals( DSLMappingEntry.CONDITION,
entry.getSection() );
assertEquals( DSLMappingEntry.EMPTY_METADATA,
entry.getMetaData() );
assertEquals( "(\\W|^)ATTRIBUTE\\s+\"(.*?)\"\\s+IS\\s+IN\\s+[(.*?)](\\W|$)",
entry.getKeyPattern().toString() );
//Attribute( {attr} in ({list}) )
assertEquals( "$1Attribute( $2 in ($3) )$4",
entry.getValuePattern() );
} catch ( final IOException e ) {
e.printStackTrace();
fail( "Should not raise exception " );
}
}
public void testParseFileWithEscaptedBrackets() {
String file = "[when]ATTRIBUTE \"{attr}\" IS IN \\[{list}\\]=Attribute( {attr} in ({list}) )";
try {
final Reader reader = new StringReader( file );
this.file = new DSLTokenizedMappingFile();
final boolean parsingResult = this.file.parseAndLoad( reader );
reader.close();
assertTrue( this.file.getErrors().toString(),
parsingResult );
assertTrue( this.file.getErrors().isEmpty() );
assertEquals( 1,
this.file.getMapping().getEntries().size() );
DSLMappingEntry entry = (DSLMappingEntry) this.file.getMapping().getEntries().get( 0 );
assertEquals( DSLMappingEntry.CONDITION,
entry.getSection() );
assertEquals( DSLMappingEntry.EMPTY_METADATA,
entry.getMetaData() );
assertEquals( "(\\W|^)ATTRIBUTE\\s+\"(.*?)\"\\s+IS\\s+IN\\s+\\[(.*?)\\](\\W|$)",
entry.getKeyPattern().toString() );
//Attribute( {attr} in ({list}) )
assertEquals( "$1Attribute( $2 in ($3) )$4",
entry.getValuePattern() );
} catch ( final IOException e ) {
e.printStackTrace();
fail( "Should not raise exception " );
}
}
public void testParseFileWithEscapes() {
String file = "[then]TEST=System.out.println(\"DO_SOMETHING\");\n" +
"[when]code {code1} occurs and sum of all digit not equal \\( {code2} \\+ {code3} \\)=AAAA( cd1 == {code1}, cd2 != ( {code2} + {code3} ))\n" +
"[when]code {code1} occurs=BBBB\n";
try {
final Reader reader = new StringReader( file );
this.file = new DSLTokenizedMappingFile();
final boolean parsingResult = this.file.parseAndLoad( reader );
reader.close();
assertTrue( this.file.getErrors().toString(),
parsingResult );
assertTrue( this.file.getErrors().isEmpty() );
final String LHS = "code 1041 occurs and sum of all digit not equal ( 1034 + 1035 )";
final String rule = "rule \"x\"\nwhen\n" + LHS + "\nthen\nTEST\nend";
DefaultExpander de = new DefaultExpander();
de.addDSLMapping(this.file.getMapping());
final String ruleAfterExpansion = de.expand(rule);
final String expected = "rule \"x\"\nwhen\nAAAA( cd1 == 1041, cd2 != ( 1034 + 1035 ))\nthen\nSystem.out.println(\"DO_SOMETHING\");\nend\n";
assertEquals( expected, ruleAfterExpansion );
} catch ( final IOException e ) {
e.printStackTrace();
fail( "Should not raise exception " );
}
}
public void testParseFileWithEscaptedEquals() {
String file = "[when]something:\\={value}=Attribute( something == \"{value}\" )";
try {
final Reader reader = new StringReader( file );
this.file = new DSLTokenizedMappingFile();
final boolean parsingResult = this.file.parseAndLoad( reader );
reader.close();
assertTrue( this.file.getErrors().toString(),
parsingResult );
assertTrue( this.file.getErrors().isEmpty() );
assertEquals( 1,
this.file.getMapping().getEntries().size() );
DSLMappingEntry entry = (DSLMappingEntry) this.file.getMapping().getEntries().get( 0 );
assertEquals( DSLMappingEntry.CONDITION,
entry.getSection() );
assertEquals( DSLMappingEntry.EMPTY_METADATA,
entry.getMetaData() );
assertEquals( "(\\W|^)something:\\=(.*?)$",
entry.getKeyPattern().toString() );
assertEquals( "$1Attribute( something == \"$2\" )",
entry.getValuePattern() );
} catch ( final IOException e ) {
e.printStackTrace();
fail( "Should not raise exception " );
}
}
}