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/*
* Copyright (c) 2013, 2015 QNX Software Systems 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
*/
package org.eclipse.cdt.qt.tests;
import org.eclipse.cdt.core.dom.ast.IASTCompletionNode;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.internal.qt.ui.assist.QPropertyExpansion;
import org.eclipse.cdt.ui.text.contentassist.ICEditorContentAssistInvocationContext;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.ui.IEditorPart;
import junit.framework.TestCase;
public class QtContentAssistantTests extends TestCase {
public void testQPropertyProposals() throws Exception {
String decl = "Q_PROPERTY( type name READ accessor WRITE modifier )";
int atEnd = decl.length();
int atRParen = decl.indexOf(')');
int afterModifier = decl.indexOf("modifier") + "modifier".length();
int afterWRITE = decl.indexOf("WRITE") + "WRITE".length();
int inModifier = decl.indexOf("modifier") + 3;
int inWRITE = decl.indexOf("WRITE") + 3;
IDocument doc = new Document(decl);
// The expansion is not applicable when invoked after the closing paren
QPropertyExpansion exp = QPropertyExpansion.create(new Context(doc, atEnd));
assertNull(exp);
exp = QPropertyExpansion.create(new Context(doc, atRParen));
assertNotNull(exp);
assertNull(exp.getCurrIdentifier());
assertEquals("modifier", exp.getPrevIdentifier());
exp = QPropertyExpansion.create(new Context(doc, afterModifier));
assertNotNull(exp);
assertEquals("modifier", exp.getCurrIdentifier());
assertEquals("WRITE", exp.getPrevIdentifier());
exp = QPropertyExpansion.create(new Context(doc, afterWRITE));
assertNotNull(exp);
assertEquals("WRITE", exp.getCurrIdentifier());
assertEquals("accessor", exp.getPrevIdentifier());
exp = QPropertyExpansion.create(new Context(doc, inModifier));
assertNotNull(exp);
assertEquals("modifier", exp.getCurrIdentifier());
assertEquals("WRITE", exp.getPrevIdentifier());
exp = QPropertyExpansion.create(new Context(doc, inWRITE));
assertNotNull(exp);
assertEquals("WRITE", exp.getCurrIdentifier());
assertEquals("accessor", exp.getPrevIdentifier());
}
public void testQPropertyWithoutLeadingWhitespace() throws Exception {
String decl = "Q_PROPERTY(type name READ accessor )";
int atRParen = decl.indexOf(')');
IDocument doc = new Document(decl);
// The expansion should be created even when there is no leading whitesapce in the
// expansion parameter.
QPropertyExpansion exp = QPropertyExpansion.create(new Context(doc, atRParen));
assertNotNull(exp);
}
public void testQPropertyPrefixes() throws Exception {
String decl = "Q_PROPERTY( type name READ accessor WRITE )";
int len = decl.length();
IDocument doc = new Document(decl);
// The expansion is not applicable when invoked after the closing paren
QPropertyExpansion atEnd = QPropertyExpansion.create(new Context(doc, len));
assertNull(atEnd);
QPropertyExpansion inWS = QPropertyExpansion.create(new Context(doc, len - 2));
assertNotNull(inWS);
assertNull(inWS.getPrefix());
assertNull(inWS.getCurrIdentifier());
assertEquals("WRITE", inWS.getPrevIdentifier());
QPropertyExpansion afterWRITE = QPropertyExpansion.create(new Context(doc, len - 3));
assertNotNull(afterWRITE);
assertEquals("WRITE", afterWRITE.getPrefix());
assertEquals("WRITE", afterWRITE.getCurrIdentifier());
assertEquals("accessor", afterWRITE.getPrevIdentifier());
QPropertyExpansion inWRITE_e = QPropertyExpansion.create(new Context(doc, len - 4));
assertNotNull(inWRITE_e);
assertEquals("WRIT", inWRITE_e.getPrefix());
assertEquals("WRITE", inWRITE_e.getCurrIdentifier());
assertEquals("accessor", inWRITE_e.getPrevIdentifier());
QPropertyExpansion inWRITE_b = QPropertyExpansion.create(new Context(doc, len - 6));
assertNotNull(inWRITE_b);
assertEquals("WR", inWRITE_b.getPrefix());
assertEquals("WRITE", inWRITE_b.getCurrIdentifier());
assertEquals("accessor", inWRITE_b.getPrevIdentifier());
QPropertyExpansion startWRITE = QPropertyExpansion.create(new Context(doc, len - 8));
assertNotNull(startWRITE);
assertNull(startWRITE.getPrefix());
assertNull(startWRITE.getCurrIdentifier());
assertEquals("accessor", startWRITE.getPrevIdentifier());
}
// This implements only the parts that are known to be used in the QPropertyExpansion
// implementation.
private static class Context implements ICEditorContentAssistInvocationContext {
private final IDocument doc;
private final int contextOffset;
private final int invokedOffset;
public Context(IDocument doc, int invoked) {
this.doc = doc;
this.contextOffset = doc.get().indexOf('(') + 1;
this.invokedOffset = invoked;
}
@Override
public int getInvocationOffset() {
return invokedOffset;
}
@Override
public int getContextInformationOffset() {
return contextOffset;
}
@Override
public IDocument getDocument() {
return doc;
}
@Override
public boolean isContextInformationStyle() {
return false;
}
@Override
public ITextViewer getViewer() {
return null;
}
@Override
public ITranslationUnit getTranslationUnit() {
return null;
}
@Override
public ICProject getProject() {
return null;
}
@Override
public int getParseOffset() {
return 0;
}
@Override
public IEditorPart getEditor() {
return null;
}
@Override
public IASTCompletionNode getCompletionNode() {
return null;
}
@Override
public CharSequence computeIdentifierPrefix() throws BadLocationException {
return null;
}
};
}
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