TestSyntaxErrors.java

/*
 * Copyright 2008 CoreMedia AG
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, 
 * software distributed under the License is distributed on an "AS
 * IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 
 * express or implied. See the License for the specific language 
 * governing permissions and limitations under the License.
 */

package net.jangaroo.test.unit;

import net.jangaroo.jooc.api.CompilationResult;
import net.jangaroo.test.JooTestCase;

import java.io.File;
import java.util.LinkedList;
import java.util.List;

/**
 * Test that all Test*.as files in the error directory and subdirectories produce compiler errors.
 */
public class TestSyntaxErrors extends JooTestCase {

  private static final String ERROR_PACKAGE_PATH = "error";

  /**
   * The number of erroneous .as files. Increase whenever you add a new error file.
   * Specifying this number makes sure that no files are accidentially forgotten.
   */
  private static int ERROR_FILE_COUNT = 17;

  public TestSyntaxErrors(String name) {
    super(name);
  }

  public void testAllErrorClasses() {
    String baseDirName = prependSourceDir(new String[]{ERROR_PACKAGE_PATH})[0];
    File baseDir = new File(baseDirName);
    int checked = checkAllErrorClasses(baseDir, ERROR_PACKAGE_PATH);
    assertEquals(ERROR_FILE_COUNT, checked);
  }

  private int checkAllErrorClasses(File baseDir, String baseDirName) {
    File[] files = baseDir.listFiles();
    int total = 0;
    List<File> passed = new LinkedList<File>();
    for (File file : files) {
      if (file.isDirectory()) {
        checkAllErrorClasses(file, baseDirName + "/" + file.getName());
      } else if (file.getName().startsWith("Test") && file.getName().endsWith(".as")) {
        int resultCode = runJooc(baseDirName + "/" + file.getName());
        if (resultCode == CompilationResult.RESULT_CODE_COMPILATION_FAILED) {
          total++;
        } else {
          passed.add(file);
        }
      }
    }
    if (passed.size() > 0) {
      StringBuilder msg = new StringBuilder();
      for (File file :passed) {
        msg.append(msg.length() == 0 ? "expected compilation failure for " : ", ");
        msg.append(file.getAbsolutePath());
      }
      fail(msg.toString());
    }
    return total;
  }
}