| /******************************************************************************* |
| * Copyright (c) 2005, 2016 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.core.tests.model; |
| |
| import java.util.ArrayList; |
| |
| import junit.framework.Test; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.dltk.core.BufferChangedEvent; |
| import org.eclipse.dltk.core.IBuffer; |
| import org.eclipse.dltk.core.IBufferChangedListener; |
| import org.eclipse.dltk.core.ISourceModule; |
| |
| |
| public class BufferTests extends ModifyingResourceTests implements IBufferChangedListener { |
| |
| final static String[] TEST_NATURES = new String[] { |
| ModelTestsPlugin.TEST_NATURE |
| }; |
| |
| protected ArrayList<BufferChangedEvent> events = null; |
| |
| public BufferTests(String name) { |
| super(ModelTestsPlugin.PLUGIN_NAME, name); |
| } |
| |
| public static Test suite() { |
| return new Suite(BufferTests.class); |
| } |
| |
| /** |
| * @see AbstractModelTests#setUpSuite() |
| */ |
| @Override |
| public void setUpSuite() throws Exception { |
| super.setUpSuite(); |
| try { |
| this.createScriptProject("P", TEST_NATURES, new String[] {""}); |
| this.createFolder("P/x/y"); |
| } catch (CoreException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /** |
| * @see AbstractModelTests#tearDownSuite() |
| */ |
| @Override |
| public void tearDownSuite() throws Exception { |
| super.tearDownSuite(); |
| BufferTests.deleteProject("P"); |
| } |
| |
| |
| protected IBuffer createBuffer(String path, String content) throws CoreException { |
| waitUntilIndexesReady(); // ensure that the indexer is not reading the file |
| this.createFile(path, content); |
| ISourceModule sm = this.getSourceModule(path); |
| IBuffer buffer = sm.getBuffer(); |
| buffer.addBufferChangedListener(this); |
| this.events = new ArrayList<BufferChangedEvent>(); |
| return buffer; |
| } |
| |
| /** |
| * Verify the buffer changed event. |
| * The given text must contain '\n' line separators. |
| */ |
| protected void assertBufferEvent(int offset, int length, String text) { |
| assertTrue("events should not be null", this.events != null); |
| assertTrue("events should not be empty", !this.events.isEmpty()); |
| BufferChangedEvent event = (BufferChangedEvent) this.events.get(0); |
| assertEquals("unexpected offset", offset, event.getOffset()); |
| assertEquals("unexpected length", length, event.getLength()); |
| if (text == null) { |
| assertTrue("text should be null", event.getText() == null); |
| } else { |
| assertSourceEquals("unexpected text", text, event.getText()); |
| } |
| } |
| |
| protected void deleteBuffer(IBuffer buffer) throws CoreException { |
| buffer.removeBufferChangedListener(this); |
| IResource resource = buffer.getUnderlyingResource(); |
| if (resource != null) { |
| deleteResource(resource); |
| } |
| } |
| |
| |
| /** |
| * Tests appending to a buffer. |
| */ |
| public void testAppend() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| int oldLength= buffer.getLength(); |
| buffer.append("\nclass B {}"); |
| assertBufferEvent(oldLength, 0, "\nclass B {}"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}\n" + |
| "class B {}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| |
| public void testClose() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| buffer.close(); |
| assertBufferEvent(0, 0, null); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| |
| /** |
| * Tests getting the underlying resource of a buffer. |
| */ |
| public void testGetUnderlyingResource() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| ISourceModule copy = null; |
| try { |
| IFile file = this.getFile("P/x/y/A.txt"); |
| assertEquals("Unexpected underlying resource", file, buffer.getUnderlyingResource()); |
| |
| copy = this.getSourceModule("P/x/y/A.txt").getWorkingCopy(null); |
| assertEquals("Unexpected underlying resource 2", file, copy.getBuffer().getUnderlyingResource()); |
| } finally { |
| this.deleteBuffer(buffer); |
| if (copy != null) { |
| copy.discardWorkingCopy(); |
| } |
| } |
| } |
| |
| /** |
| * Tests deleting text at the beginning of a buffer. |
| */ |
| public void testDeleteBeginning() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| buffer.replace(0, 13, ""); |
| assertBufferEvent(0, 13, null); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "public class A {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests deleting text in the middle of a buffer. |
| */ |
| public void testDeleteMiddle() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // delete "public " |
| buffer.replace(13, 7, ""); |
| assertBufferEvent(13, 7, null); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "class A {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests deleting text at the end of a buffer. |
| */ |
| public void testDeleteEnd() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // delete "public class A {\n}" |
| buffer.replace(13, 18, ""); |
| assertBufferEvent(13, 18, null); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests the buffer char retrieval via source position |
| */ |
| public void testGetChar() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| assertEquals("Unexpected char at position 17", 'i', buffer.getChar(17)); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests the buffer char retrieval via source position doesn't throw an exception if the buffer is closed. |
| * (regression test for bug 46040 NPE in Eclipse console) |
| */ |
| public void testGetChar2() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| buffer.close(); |
| try { |
| assertEquals("Unexpected char at position 17", Character.MIN_VALUE, buffer.getChar(17)); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests the buffer getLength() |
| */ |
| public void testGetLength() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| assertEquals("Unexpected length", 31, buffer.getLength()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests the buffer text retrieval via source position |
| */ |
| public void testGetText() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| assertSourceEquals("Unexpected text (1)", "p", buffer.getText(0, 1)); |
| assertSourceEquals("Unexpected text (2)", "public", buffer.getText(13, 6)); |
| assertSourceEquals("Unexpected text (3)", "", buffer.getText(10, 0)); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests inserting text at the beginning of a buffer. |
| */ |
| public void testInsertBeginning() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| buffer.replace(0, 0, "/* copyright mycompany */\n"); |
| assertBufferEvent(0, 0, "/* copyright mycompany */\n"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "/* copyright mycompany */\n" + |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests replacing text at the beginning of a buffer. |
| */ |
| public void testReplaceBeginning() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| buffer.replace(0, 13, "package other;\n"); |
| assertBufferEvent(0, 13, "package other;\n"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package other;\n" + |
| "public class A {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests replacing text in the middle of a buffer. |
| */ |
| public void testReplaceMiddle() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // replace "public class A" after the \n of package statement |
| buffer.replace(13, 14, "public class B"); |
| assertBufferEvent(13, 14, "public class B"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "public class B {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests replacing text at the end of a buffer. |
| */ |
| public void testReplaceEnd() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // replace "}" at the end of cu with "}\n" |
| int end = buffer.getLength(); |
| buffer.replace(end-1, 1, "}\n"); |
| assertBufferEvent(end-1, 1, "}\n"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}\n", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests inserting text in the middle of a buffer. |
| */ |
| public void testInsertMiddle() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // insert after the \n of package statement |
| buffer.replace(13, 0, "/* class comment */\n"); |
| assertBufferEvent(13, 0, "/* class comment */\n"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "/* class comment */\n" + |
| "public class A {\n" + |
| "}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| /** |
| * Tests inserting text at the end of a buffer. |
| */ |
| public void testInsertEnd() throws CoreException { |
| IBuffer buffer = this.createBuffer( |
| "P/x/y/A.txt", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}" |
| ); |
| try { |
| // insert after the \n of package statement |
| int end = buffer.getLength(); |
| buffer.replace(end, 0, "\nclass B {}"); |
| assertBufferEvent(end, 0, "\nclass B {}"); |
| assertSourceEquals( |
| "unexpected buffer contents", |
| "package x.y;\n" + |
| "public class A {\n" + |
| "}\n" + |
| "class B {}", |
| buffer.getContents() |
| ); |
| assertTrue("should have unsaved changes", buffer.hasUnsavedChanges()); |
| } finally { |
| this.deleteBuffer(buffer); |
| } |
| } |
| |
| @Override |
| public void bufferChanged(BufferChangedEvent bufferChangedEvent) { |
| this.events.add(bufferChangedEvent); |
| } |
| } |