| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.text.tests.rules; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.eclipse.jface.text.Document; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.ITypedRegion; |
| import org.eclipse.jface.text.rules.FastPartitioner; |
| import org.eclipse.jface.text.rules.IPartitionTokenScanner; |
| import org.eclipse.jface.text.rules.IPredicateRule; |
| import org.eclipse.jface.text.rules.IToken; |
| import org.eclipse.jface.text.rules.MultiLineRule; |
| import org.eclipse.jface.text.rules.RuleBasedPartitionScanner; |
| import org.eclipse.jface.text.rules.Token; |
| |
| |
| /** |
| * @since 3.0 |
| */ |
| public class DefaultPartitionerZeroLengthTest { |
| |
| private static final String COMMENT= "comment"; |
| private static final String DEFAULT= IDocument.DEFAULT_CONTENT_TYPE; |
| |
| private IDocument fDoc; |
| private FastPartitioner fPartitioner; |
| |
| @Before |
| public void setUp() { |
| fDoc= new Document(); |
| IPartitionTokenScanner scanner= new RuleBasedPartitionScanner() { |
| { |
| IToken comment= new Token(COMMENT); |
| IPredicateRule[] rules= new IPredicateRule[] { new MultiLineRule("/*", "*/", comment) }; |
| setPredicateRules(rules); |
| |
| } |
| }; |
| fPartitioner= new FastPartitioner(scanner, new String[] { DEFAULT, COMMENT }); |
| fDoc.setDocumentPartitioner(fPartitioner); |
| fPartitioner.connect(fDoc); |
| } |
| |
| @Test |
| public void testGetZeroLengthPartition() { |
| fDoc.set("docu ment/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertGetZeroLengthPartition_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthPartitionEmptyMiddle() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26, 26, 39 }; |
| assertGetZeroLengthPartition_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthPartitionEmptyStart() { |
| fDoc.set("/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 0, 13 }; |
| assertGetZeroLengthPartition_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthPartitionEmptyEnd() { |
| fDoc.set("docu ment/* comment */"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertGetZeroLengthPartition_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthContentType() { |
| fDoc.set("docu ment/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertGetZeroLengthContentType_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthContentTypeEmptyMiddle() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26, 26, 39 }; |
| assertGetZeroLengthContentType_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthContentTypeEmptyStart() { |
| fDoc.set("/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 0, 13 }; |
| assertGetZeroLengthContentType_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testGetZeroLengthContentTypeEmptyEnd() { |
| fDoc.set("docu ment/* comment */"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertGetZeroLengthContentType_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testComputeZeroLengthPartitioning() { |
| fDoc.set("docu ment/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testComputeZeroLengthPartitioningEmptyMiddle() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26, 26, 39 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testComputeZeroLengthPartitioningEmptyStart() { |
| fDoc.set("/* comment */docu ment"); |
| |
| int[] offsets= new int[] { 0, 13 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testComputeZeroLengthPartitioningEmptyEnd() { |
| fDoc.set("docu ment/* comment */"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(offsets); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeBeforeBoundaries() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26, 26 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(12, 38, offsets, DEFAULT); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeOnBoundaries() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 13, 26, 26, 39 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(13, 39, offsets, DEFAULT); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeOnBoundaries2() { |
| fDoc.set("/* comment *//* comment *//* comment */"); |
| |
| int[] offsets= new int[] { 13, 26 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(13, 26, offsets, DEFAULT); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeAfterBoundaries() { |
| fDoc.set("docu ment/* comment *//* comment */docu ment"); |
| |
| int[] offsets= new int[] { 26, 26, 39 }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(14, 40, offsets, COMMENT); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeInBoundaries1() { |
| fDoc.set("/* comment */"); |
| |
| int[] offsets= new int[] { }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(1, 12, offsets, COMMENT); |
| } |
| |
| @Test |
| public void testComputePartitioningSubrangeInBoundaries2() { |
| fDoc.set("docu ment"); |
| |
| int[] offsets= new int[] { }; |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(1, 12, offsets, DEFAULT); |
| } |
| |
| private void assertComputeZeroLengthPartitioning_InterleavingPartitions(int[] offsets) { |
| assertComputeZeroLengthPartitioning_InterleavingPartitions(0, fDoc.getLength(), offsets, DEFAULT); |
| } |
| |
| private void assertComputeZeroLengthPartitioning_InterleavingPartitions(int startOffset, int endOffset, int[] offsets, String startType) { |
| ITypedRegion[] regions= fPartitioner.computePartitioning(startOffset, endOffset - startOffset, true); |
| |
| String type= startType; |
| int previousOffset= startOffset; |
| |
| assertEquals(offsets.length + 1, regions.length); |
| for (int i= 0; i <= offsets.length; i++) { |
| int currentOffset= (i == offsets.length) ? endOffset : offsets[i]; |
| ITypedRegion region= regions[i]; |
| |
| assertTypedRegion(region, previousOffset, currentOffset, type); |
| |
| // advance |
| if (type == DEFAULT) |
| type= COMMENT; |
| else |
| type= DEFAULT; |
| previousOffset= currentOffset; |
| } |
| } |
| |
| private void assertGetZeroLengthContentType_InterleavingPartitions(int[] offsets) { |
| String type= DEFAULT; |
| int previousOffset= 0; |
| for (int i= 0; i <= offsets.length; i++) { |
| int offset= (i == offsets.length) ? fDoc.getLength() : offsets[i]; |
| assertEqualPartitionType(previousOffset, offset, type); |
| |
| // advance |
| if (type == DEFAULT) |
| type= COMMENT; |
| else |
| type= DEFAULT; |
| previousOffset= offset; |
| } |
| } |
| |
| private void assertGetZeroLengthPartition_InterleavingPartitions(int[] offsets) { |
| String type= DEFAULT; |
| int previousOffset= 0; |
| for (int i= 0; i <= offsets.length; i++) { |
| int offset= (i == offsets.length) ? fDoc.getLength() : offsets[i]; |
| assertEqualPartition(previousOffset, offset, type); |
| |
| // advance |
| if (type == DEFAULT) |
| type= COMMENT; |
| else |
| type= DEFAULT; |
| previousOffset= offset; |
| } |
| } |
| |
| private boolean isOpenType(String type) { |
| return type.equals(DEFAULT); |
| } |
| |
| private void assertEqualPartition(int offset, int inclusiveEnd, String type) { |
| int from= isOpenType(type) ? offset : offset + 1; |
| int to= isOpenType(type) ? inclusiveEnd : inclusiveEnd - 1; |
| for (int i= from; i <= to; i++) { |
| ITypedRegion region= fPartitioner.getPartition(i, true); |
| assertTypedRegion(region, offset, inclusiveEnd, type); |
| } |
| } |
| |
| private void assertTypedRegion(ITypedRegion region, int offset, int inclusiveEnd, String type) { |
| assertEquals(offset, region.getOffset()); |
| assertEquals(inclusiveEnd - offset, region.getLength()); |
| assertEquals(type, region.getType()); |
| } |
| |
| private void assertEqualPartitionType(int offset, int inclusiveEnd, String type) { |
| int from= isOpenType(type) ? offset : offset + 1; |
| int to= isOpenType(type) ? inclusiveEnd : inclusiveEnd - 1; |
| for (int i= from; i <= to; i++) { |
| assertEquals(type, fPartitioner.getContentType(i, true)); |
| } |
| } |
| |
| } |