/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.compiler.lang;
import org.drools.compiler.compiler.DroolsParserException;
import org.drools.compiler.lang.dsl.DefaultExpander;
import org.junit.Test;
import org.kie.internal.builder.conf.LanguageLevelOption;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import static org.drools.compiler.compiler.DRLFactory.buildParser;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class ErrorsParserTest {
@Test
public void testNotBindindShouldBarf() throws Exception {
final DRLParser parser = parseResource( "not_with_binding_error.drl" );
parser.compilationUnit();
assertTrue(parser.hasErrors());
}
@Test
public void testExpanderErrorsAfterExpansion() throws Exception {
String name = "expander_post_errors.dslr";
Expander expander = new DefaultExpander();
String expanded = expander.expand( this.getReader( name ) );
DRLParser parser = parse( name, expanded );
parser.compilationUnit();
assertTrue( parser.hasErrors() );
assertEquals( 1,
parser.getErrors().size() );
DroolsParserException err = (DroolsParserException) parser.getErrors().get( 0 );
assertEquals(6,
err.getLineNumber());
}
@Test
public void testInvalidSyntax_Catches() throws Exception {
DRLParser parser = parseResource("invalid_syntax.drl");
parser.compilationUnit();
assertTrue(parser.hasErrors());
}
@Test
public void testMultipleErrors() throws Exception {
DRLParser parser = parseResource( "multiple_errors.drl" );
parser.compilationUnit();
assertTrue(parser.hasErrors());
assertEquals(2, parser.getErrors().size());
}
@Test
public void testPackageGarbage() throws Exception {
DRLParser parser = parseResource( "package_garbage.drl" );
parser.compilationUnit();
assertTrue(parser.hasErrors());
}
@Test
public void testEvalWithSemicolon() throws Exception {
DRLParser parser = parseResource( "eval_with_semicolon.drl" );
parser.compilationUnit();
assertTrue( parser.hasErrors() );
assertEquals(1, parser.getErrorMessages().size());
assertEquals("ERR 102", parser.getErrors().get(0).getErrorCode());
}
@Test
public void testLexicalError() throws Exception {
DRLParser parser = parseResource( "lex_error.drl" );
parser.compilationUnit();
assertTrue( parser.hasErrors() );
}
@Test
public void testTempleteError() throws Exception {
DRLParser parser = parseResource( "template_test_error.drl" );
parser.compilationUnit();
assertTrue(parser.hasErrors());
}
@Test
public void testErrorMessageForMisplacedParenthesis() throws Exception {
final DRLParser parser = parseResource( "misplaced_parenthesis.drl" );
parser.compilationUnit();
assertTrue( "Parser should have raised errors",
parser.hasErrors() );
assertEquals( 1,
parser.getErrors().size() );
assertEquals("ERR 102",
parser.getErrors().get(0).getErrorCode());
}
@Test
public void testNPEOnParser() throws Exception {
final DRLParser parser = parseResource( "npe_on_parser.drl" );
parser.compilationUnit();
assertTrue( "Parser should have raised errors",
parser.hasErrors() );
assertEquals( 1,
parser.getErrors().size() );
assertTrue( parser.getErrors().get( 0 ).getErrorCode().equals( "ERR 102" ) );
}
@Test
public void testCommaMisuse() throws Exception {
final DRLParser parser = parseResource( "comma_misuse.drl" );
try {
parser.compilationUnit();
assertTrue( "Parser should have raised errors",
parser.hasErrors() );
} catch ( NullPointerException npe ) {
fail( "Should not raise NPE" );
}
}
private DRLParser parse(final String source,
final String text) throws Exception {
return buildParser(text, LanguageLevelOption.DRL5);
}
private Reader getReader(final String name) throws Exception {
final InputStream in = getClass().getResourceAsStream( name );
return new InputStreamReader( in );
}
private DRLParser parseResource(final String name) throws Exception {
final Reader reader = getReader(name);
final StringBuilder text = new StringBuilder();
final char[] buf = new char[1024];
int len = 0;
while ( (len = reader.read( buf )) >= 0 ) {
text.append( buf,
0,
len );
}
return parse( name,
text.toString() );
}
}