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AmbiguityValidationTest.java
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AmbiguityValidationTest.java
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/**
* Copyright (c) 2013, 2017 itemis AG (http://www.itemis.eu) and others.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.xtend.core.tests.validation;
import com.google.inject.Inject;
import java.util.List;
import java.util.function.Consumer;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.xtend.core.tests.AbstractXtendTestCase;
import org.eclipse.xtend.core.xtend.XtendFile;
import org.eclipse.xtend.core.xtend.XtendFunction;
import org.eclipse.xtend.core.xtend.XtendMember;
import org.eclipse.xtend.core.xtend.XtendTypeDeclaration;
import org.eclipse.xtext.diagnostics.AbstractDiagnostic;
import org.eclipse.xtext.testing.util.ParseHelper;
import org.eclipse.xtext.testing.validation.ValidationTestHelper;
import org.eclipse.xtext.util.Strings;
import org.eclipse.xtext.xbase.XAbstractFeatureCall;
import org.eclipse.xtext.xbase.XBlockExpression;
import org.eclipse.xtext.xbase.XConstructorCall;
import org.eclipse.xtext.xbase.XExpression;
import org.eclipse.xtext.xbase.lib.Conversions;
import org.eclipse.xtext.xbase.lib.Exceptions;
import org.eclipse.xtext.xbase.lib.Extension;
import org.eclipse.xtext.xbase.lib.Functions.Function1;
import org.eclipse.xtext.xbase.lib.IterableExtensions;
import org.eclipse.xtext.xbase.lib.ListExtensions;
import org.eclipse.xtext.xbase.typesystem.IBatchTypeResolver;
import org.eclipse.xtext.xbase.typesystem.IResolvedTypes;
import org.eclipse.xtext.xbase.typesystem.computation.IAmbiguousLinkingCandidate;
import org.eclipse.xtext.xbase.typesystem.computation.ILinkingCandidate;
import org.eclipse.xtext.xbase.validation.IssueCodes;
import org.junit.Assert;
/**
* @author Sebastian Zarnekow - Initial contribution and API
*/
@SuppressWarnings("all")
public abstract class AmbiguityValidationTest extends AbstractXtendTestCase {
@Inject
@Extension
protected ParseHelper<XtendFile> _parseHelper;
@Inject
@Extension
protected IBatchTypeResolver _iBatchTypeResolver;
@Inject
@Extension
protected ValidationTestHelper _validationTestHelper;
protected void assertAmbiguous(final CharSequence contents, final String... messageParts) {
final XtendFile file = this.getParsedXtendFile(contents);
final EList<Resource.Diagnostic> errors = file.eResource().getErrors();
Assert.assertEquals(errors.toString(), 1, errors.size());
Resource.Diagnostic _head = IterableExtensions.<Resource.Diagnostic>head(errors);
final AbstractDiagnostic singleError = ((AbstractDiagnostic) _head);
Assert.assertEquals(singleError.getMessage(), IssueCodes.AMBIGUOUS_FEATURE_CALL, singleError.getCode());
final Function1<String, String> _function = (String it) -> {
return Strings.toUnixLineSeparator(it);
};
final Consumer<String> _function_1 = (String it) -> {
final String message = singleError.getMessage();
boolean _contains = message.contains(it);
boolean _not = (!_contains);
if (_not) {
Assert.assertEquals(it, message);
}
};
ListExtensions.<String, String>map(((List<String>)Conversions.doWrapArray(messageParts)), _function).forEach(_function_1);
final XtendTypeDeclaration firstType = IterableExtensions.<XtendTypeDeclaration>head(file.getXtendTypes());
XtendMember _head_1 = IterableExtensions.<XtendMember>head(firstType.getMembers());
final XtendFunction firstMember = ((XtendFunction) _head_1);
XExpression _expression = firstMember.getExpression();
final XBlockExpression block = ((XBlockExpression) _expression);
final IResolvedTypes resolvedTypes = this._iBatchTypeResolver.resolveTypes(file);
ILinkingCandidate _switchResult = null;
XExpression _lastOrNull = IterableExtensions.<XExpression>lastOrNull(block.getExpressions());
final XExpression featureOrConstructorCall = _lastOrNull;
boolean _matched = false;
if (featureOrConstructorCall instanceof XAbstractFeatureCall) {
_matched=true;
_switchResult = resolvedTypes.getLinkingCandidate(((XAbstractFeatureCall)featureOrConstructorCall));
}
if (!_matched) {
if (featureOrConstructorCall instanceof XConstructorCall) {
_matched=true;
_switchResult = resolvedTypes.getLinkingCandidate(((XConstructorCall)featureOrConstructorCall));
}
}
if (!_matched) {
String _valueOf = String.valueOf(featureOrConstructorCall.eClass().getName());
throw new IllegalArgumentException(_valueOf);
}
final ILinkingCandidate linkingCandidate = _switchResult;
Assert.assertTrue((linkingCandidate instanceof IAmbiguousLinkingCandidate));
}
protected void assertUnambiguous(final CharSequence contents) {
final XtendFile file = this.getParsedXtendFile(contents);
final EList<Resource.Diagnostic> errors = file.eResource().getErrors();
Assert.assertEquals(errors.toString(), 0, errors.size());
this._validationTestHelper.assertNoErrors(file);
}
protected XtendFile getParsedXtendFile(final CharSequence contents) {
try {
final XtendFile file = this._parseHelper.parse(contents);
final EList<Resource.Diagnostic> errors = file.eResource().getErrors();
Assert.assertTrue(errors.toString(), errors.isEmpty());
EcoreUtil.resolveAll(file);
return file;
} catch (Throwable _e) {
throw Exceptions.sneakyThrow(_e);
}
}
}