package com.github.jknack.antlr4ide.parser;
import com.github.jknack.antlr4ide.Antlr4TestInjectorProvider;
import com.github.jknack.antlr4ide.lang.Grammar;
import com.github.jknack.antlr4ide.lang.GrammarAction;
import com.github.jknack.antlr4ide.lang.PrequelConstruct;
import com.github.jknack.antlr4ide.parser.Antlr4ParseHelper;
import com.google.inject.Inject;
import org.eclipse.emf.common.util.EList;
import org.eclipse.xtend2.lib.StringConcatenation;
import org.eclipse.xtext.junit4.InjectWith;
import org.eclipse.xtext.junit4.XtextRunner;
import org.eclipse.xtext.junit4.util.ParseHelper;
import org.eclipse.xtext.parser.IParseResult;
import org.eclipse.xtext.xbase.lib.Exceptions;
import org.eclipse.xtext.xbase.lib.Extension;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(XtextRunner.class)
@InjectWith(Antlr4TestInjectorProvider.class)
public class LangActionTest {
@Inject
@Extension
private Antlr4ParseHelper<Grammar> parser;
@Inject
@Extension
private ParseHelper<Grammar> parseHelper;
@Test
public void slashInLangAction() {
try {
final String content = this.parser.getTextFromFile(LangActionTest.class, "");
final IParseResult parseResults = this.parser.parse(content);
final boolean syntaxErrors = parseResults.hasSyntaxErrors();
Assert.assertFalse(syntaxErrors);
final Grammar grammar = this.parseHelper.parse(content);
Assert.assertNotNull(grammar);
final GrammarAction action = getAction(grammar);
Assert.assertNotNull(action);
final String expected = getExpectedString();
final String actual = action.getAction();
Assert.assertEquals(expected, actual);
} catch (final Throwable throwable) {
throw Exceptions.sneakyThrow(throwable);
}
}
private GrammarAction getAction(Grammar grammar) {
final EList<PrequelConstruct> prequels = grammar.getPrequels();
for (int i = 0; i < prequels.size(); i++) {
final PrequelConstruct it = prequels.get(i);
if (it instanceof GrammarAction) {
final GrammarAction result = (GrammarAction)it;
return result;
}
}
return null;
}
private String getExpectedString() {
final StringConcatenation content = new StringConcatenation();
content.append("{");
content.newLine();
content.append(" ");
content.append("a = a / c;");
content.newLine();
content.append("}");
final String result = content.toString();
return result;
}
}