tests/org.eclipse.dltk.javascript.parser.tests/src/org/eclipse/dltk/javascript/parser/tests/ErrorReportingTests.java

/*******************************************************************************
 * Copyright (c) 2010 xored software, Inc.
 *
 * 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
 *
 * Contributors:
 *     xored software, Inc. - initial API and Implementation (Alex Panchenko)
 *******************************************************************************/
package org.eclipse.dltk.javascript.parser.tests;

import java.util.List;

import org.eclipse.dltk.ast.utils.ASTUtil;
import org.eclipse.dltk.compiler.problem.IProblem;
import org.eclipse.dltk.core.tests.util.StringList;
import org.eclipse.dltk.javascript.ast.FunctionStatement;
import org.eclipse.dltk.javascript.ast.Script;
import org.eclipse.dltk.javascript.parser.JavaScriptParserProblems;

public class ErrorReportingTests extends AbstractJSParserTest {

	public void test1() {
		parseRaw("a.");
		assertTrue(reporter.hasErrors());
		final List<IProblem> errors = reporter.getErrors();
		assertEquals(1, errors.size());
		assertEquals("missing name after . operator", errors.get(0)
				.getMessage());
	}

	public void testNotFinishedComment() {
		StringList code = new StringList();
		code.add("function a() {}");
		code.add("/* not finished comment");
		code.add("function b() {}");
		Script script = parseRaw(code.toString());
		assertTrue(reporter.hasErrors());
		assertTrue(ASTUtil.select(script, FunctionStatement.class).size() > 0);
	}

	public void testMisplacedDiv() {
		StringList code = new StringList();
		code.add("function a() {}");
		code.add("/");
		code.add("function b() {}");
		Script script = parseRaw(code.toString());
		assertTrue(reporter.hasErrors());
		assertTrue(ASTUtil.select(script, FunctionStatement.class).size() > 0);
	}

	public void testMisplacedMul() {
		StringList code = new StringList();
		code.add("function a() {}");
		code.add("***");
		code.add("function b() {}");
		Script script = parseRaw(code.toString());
		assertTrue(reporter.hasErrors());
		assertTrue(ASTUtil.select(script, FunctionStatement.class).size() > 0);
	}

	public void testNotFinishedStringLiteral() {
		StringList code = new StringList();
		code.add("function a() {}");
		code.add("\"");
		code.add("function b() {}");
		Script script = parseRaw(code.toString());
		assertTrue(reporter.hasErrors());
		assertTrue(ASTUtil.select(script, FunctionStatement.class).size() > 0);
	}

	public void testNotFinishedCall() {
		StringList code = new StringList();
		code.add("function test(event) {");
		code.add("application.output(e");
		code.add("}");
		Script script = parseRaw(code.toString());
		assertTrue(reporter.hasErrors());
		assertEquals(JavaScriptParserProblems.SYNTAX_ERROR, getProblemId());
		assertTrue(ASTUtil.select(script, FunctionStatement.class).size() > 0);
	}

	public void testNoArrayIndex() {
		parseRaw("var x = a[]");
		assertTrue(reporter.hasErrors());
		assertEquals(1, reporter.getProblems().size());
	}

	public void testEmptyParentheses() {
		parseRaw("var x = x * ()");
		assertTrue(reporter.hasErrors());
		assertEquals(1, reporter.getProblems().size());
	}

	public void testNotFinishedConditionalOperator() {
		parse("var x = x ? 0:");
		assertEquals(1, reporter.getProblems().size());
		assertEquals(JavaScriptParserProblems.SYNTAX_ERROR, getProblemId());
		parse("var x = x ? 0:;");
		assertEquals(1, reporter.getProblems().size());
		assertEquals(JavaScriptParserProblems.SYNTAX_ERROR, getProblemId());
	}

	public void testLabelledFunctionExpression() {
		parse("L: function() {}");
		assertEquals(1, reporter.getProblems().size());
		assertEquals(JavaScriptParserProblems.SYNTAX_ERROR, getProblemId());
	}

}