fix for bug 63640

2 files changed, 107 insertions, 0 deletions

diff --git a/org.eclipse.search.tests/src/org/eclipse/search/core/tests/AllSearchModelTests.java b/org.eclipse.search.tests/src/org/eclipse/search/core/tests/AllSearchModelTests.java
index d97135e257f..7ad603a1642 100644
--- a/org.eclipse.search.tests/src/org/eclipse/search/core/tests/AllSearchModelTests.java
+++ b/org.eclipse.search.tests/src/org/eclipse/search/core/tests/AllSearchModelTests.java
@@ -34,6 +34,7 @@ public class AllSearchModelTests extends TestSuite {
 		addTest(new TestSuite(QueryManagerTest.class));
 		addTest(new TestSuite(TestSearchResult.class));
 		addTest(new TestSuite(QueryManagerTest.class));
+		addTest(new TestSuite(LineConversionTest.class));
 	}
 
 }
diff --git a/org.eclipse.search.tests/src/org/eclipse/search/core/tests/LineConversionTest.java b/org.eclipse.search.tests/src/org/eclipse/search/core/tests/LineConversionTest.java
new file mode 100644
index 00000000000..5882536afb6
--- /dev/null
+++ b/org.eclipse.search.tests/src/org/eclipse/search/core/tests/LineConversionTest.java
@@ -0,0 +1,106 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.search.core.tests;
+
+import java.io.ByteArrayInputStream;
+
+import junit.framework.TestCase;
+
+import org.eclipse.core.filebuffers.FileBuffers;
+import org.eclipse.core.filebuffers.ITextFileBuffer;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.Position;
+import org.eclipse.search.internal.ui.SearchPlugin;
+import org.eclipse.search2.internal.ui.text.PositionTracker;
+import org.eclipse.ui.ide.IDE;
+
+/**
+ */
+public class LineConversionTest extends TestCase {
+	private IFile fFile;
+	
+	private static final String LINE_TWO= "This is the second line";
+	private static final String LINE_ONE= "This is the first line";
+	private static final String LINE_THREE= "This is the third line";
+
+	protected void setUp() throws Exception {
+		IProject project= ResourcesPlugin.getWorkspace().getRoot().getProject("Test");
+		project.create(null);
+		project.open(null);
+		fFile= project.getFile("/test.txt");
+		fFile.create(new ByteArrayInputStream(getFileContents().getBytes()), true, null);
+		super.setUp();
+	}
+	
+	protected void tearDown() throws Exception {
+		SearchPlugin.getActivePage().closeAllEditors(false);
+		fFile.getProject().delete(true, true, null);
+		super.tearDown();
+	}
+
+	private String getFileContents() {
+		return LINE_ONE+"\n"+LINE_TWO+"\n"+LINE_THREE;
+	}
+	
+	public void testConvertToCharacter() throws Exception {
+		IDE.openEditor(SearchPlugin.getActivePage(), fFile);
+		ITextFileBuffer fb= FileBuffers.getTextFileBufferManager().getTextFileBuffer(fFile.getLocation());
+		IDocument doc= fb.getDocument();
+		
+		Position p1= new Position(2, 1);
+		Position p2= PositionTracker.convertToCharacterPosition(p1, doc);
+		//assertEquals(LINE_THREE, doc.get(p2.getOffset(), p2.getLength()));
+		assertEquals(p1, PositionTracker.convertToLinePosition(p2, doc));
+
+		p1= new Position(0, 1);
+		p2= PositionTracker.convertToCharacterPosition(p1, doc);
+		assertEquals(LINE_ONE, doc.get(p2.getOffset(), p2.getLength()));
+		assertEquals(p1, PositionTracker.convertToLinePosition(p2, doc));
+
+		p1= new Position(1, 1);
+		p2= PositionTracker.convertToCharacterPosition(p1, doc);
+		assertEquals(LINE_TWO, doc.get(p2.getOffset(), p2.getLength()));
+		assertEquals(p1, PositionTracker.convertToLinePosition(p2, doc));
+
+		p1= new Position(0, 0);
+		p2= PositionTracker.convertToCharacterPosition(p1, doc);
+		assertEquals("", doc.get(p2.getOffset(), p2.getLength()));
+		assertEquals(p1, PositionTracker.convertToLinePosition(p2, doc));
+	}
+	
+	public void testBogusLines() throws Exception {
+		IDE.openEditor(SearchPlugin.getActivePage(), fFile);
+		ITextFileBuffer fb= FileBuffers.getTextFileBufferManager().getTextFileBuffer(fFile.getLocation());
+		IDocument doc= fb.getDocument();
+
+		Position p1= new Position(2, 67);
+		try {
+			Position p2= PositionTracker.convertToCharacterPosition(p1, doc);
+			assertTrue("shouldn't happen", false);
+		} catch (BadLocationException e) {
+		}
+	}
+
+	public void atestLineOffsets() throws Exception {
+		IDE.openEditor(SearchPlugin.getActivePage(), fFile);
+		ITextFileBuffer fb= FileBuffers.getTextFileBufferManager().getTextFileBuffer(fFile.getLocation());
+		IDocument doc= fb.getDocument();
+
+		int offset= doc.getLineOffset(3);
+		int line= doc.getLineOfOffset(offset);
+		assertEquals(3, line);
+	}
+}
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