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package org.eclipse.xpand3.parser.node2ast;
import java.io.InputStream;
import java.util.List;
import junit.framework.TestCase;
import org.antlr.runtime.ANTLRStringStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.RecognitionException;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl;
import org.eclipse.tmf.common.node.Node;
import org.eclipse.tmf.common.treetest.Body;
import org.eclipse.tmf.common.treetest.Expression;
import org.eclipse.tmf.common.treetest.NodeRef;
import org.eclipse.tmf.common.treetest.PropertyCheck;
import org.eclipse.tmf.common.treetest.PropertyList;
import org.eclipse.tmf.common.treetest.Test;
import org.eclipse.tmf.common.treetest.TestSpec;
import org.eclipse.tmf.common.treetest.TreetestPackage;
import org.eclipse.tmf.common.treetest.parser.XtextParser;
import org.eclipse.xpand3.SyntaxElement;
import org.eclipse.xpand3.parser.Xpand3NodeLexer;
import org.eclipse.xpand3.parser.Xpand3NodeParser;
public class TreetestInterpreterTest extends TestCase {
@Override
protected void setUp() throws Exception {
ClassLoader classLoader = getClass().getClassLoader();
Thread.currentThread().setContextClassLoader(classLoader);
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put(
"ecore", new XMIResourceFactoryImpl());
EPackage treePackage = TreetestPackage.eINSTANCE;
EPackage.Registry.INSTANCE.put(treePackage.getNsURI(), treePackage);
}
public void testTree() throws RecognitionException {
test("org/eclipse/xpand3/parser/node2ast/test.tree");
}
private void test(String testFileName) throws RecognitionException {
ClassLoader classLoader = getClass().getClassLoader();
InputStream testFile = classLoader.getResourceAsStream(testFileName);
XtextParser treeSpecParser = new XtextParser(testFile);
TestSpec testSpec = (TestSpec) treeSpecParser.getRootNode()
.getModelElement();
System.out.println("Loading test spec from " + testSpec.getName());
EList<Test> tests = testSpec.getTest();
for (Test test : tests) {
System.out.println("Starting test " + test.getName());
Expression testExpression = test.getExpr();
SyntaxElement rootElement = parseAndTransform(testExpression);
performTest(rootElement, test.getExpected());
}
}
private SyntaxElement parseAndTransform(Expression testExpression)
throws RecognitionException {
String body = testExpression.getBody();
body = body.substring(2, body.length() - 2);
System.out.println("Expression:" + body);
ANTLRStringStream stream = new ANTLRStringStream(body);
Xpand3NodeLexer lexer = new Xpand3NodeLexer(stream);
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
Xpand3NodeParser xpand3NodeParser = new Xpand3NodeParser(tokenStream);
Node rootNode = xpand3NodeParser.r_file();
if (rootNode == null) {
System.out.println("Nothing parsed.");
}
Node2AstTransformer node2AstTransformer = new Node2AstTransformer();
return node2AstTransformer.doSwitch(rootNode);
}
@SuppressWarnings("unchecked")
protected void performTest(EObject object,
org.eclipse.tmf.common.treetest.Node testRootNode) {
EClass eClass = object.eClass();
assertEquals(eClass.getName(), testRootNode.getClassName());
PropertyList propertyList = testRootNode.getPropertyList();
if (propertyList != null) {
for (PropertyCheck propertyCheck : propertyList.getChecks()) {
String name = propertyCheck.getName();
EStructuralFeature attribute = eClass
.getEStructuralFeature(name);
String value = object.eGet(attribute).toString();
assertEquals(propertyCheck.getValue(), value);
}
}
Body body = testRootNode.getBody();
if (body != null) {
EList<NodeRef> nodeRefs = body.getChildren();
for (int i = 0; i < nodeRefs.size(); ++i) {
NodeRef nodeRef = nodeRefs.get(i);
EStructuralFeature reference = eClass
.getEStructuralFeature(nodeRefs.get(i).getRefName());
Object value = object.eGet(reference);
EList<org.eclipse.tmf.common.treetest.Node> refNodes = nodeRef
.getNodes();
if (reference.isMany()) {
List listValue = (List) value;
if (refNodes.isEmpty()) {
assertTrue(listValue == null || listValue.isEmpty());
return;
}
assertTrue(refNodes.size() <= listValue.size());
for (int j = 0; j < refNodes.size(); ++j) {
assertTrue(listValue.get(j) instanceof EObject);
performTest((EObject) listValue.get(j), refNodes.get(j));
}
} else {
if (refNodes.isEmpty()) {
assertTrue(value == null);
return;
}
assertTrue(refNodes.size() <= 1);
org.eclipse.tmf.common.treetest.Node refNode = refNodes
.get(0);
assertTrue(value instanceof EObject);
performTest((EObject) value, refNode);
}
}
}
}
}
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