DataMPSFixtureTestCase.java

/*
 * Copyright 2003-2012 JetBrains s.r.o.
 *
 * 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 jetbrains.mps.idea.core.tests;

import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.PathManager;
import com.intellij.testFramework.PlatformTestUtil;
import jetbrains.mps.ide.vfs.IdeaFile;
import jetbrains.mps.idea.core.facet.MPSFacetConfiguration;
import jetbrains.mps.vfs.FileSystem;
import jetbrains.mps.vfs.IFile;
import org.jetbrains.annotations.NotNull;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public abstract class DataMPSFixtureTestCase extends AbstractMPSFixtureTestCase {
  @Override
  protected void preConfigureFacet(final MPSFacetConfiguration configuration) {
    super.preConfigureFacet(configuration);
    try {
      PlatformTestUtil.dispatchAllInvocationEventsInIdeEventQueue();
    } catch (InterruptedException e) {
    }

    final Exception[] thrown = new Exception[1];

    ApplicationManager.getApplication().runWriteAction(new Runnable() {
      @Override
      public void run() {
        try {
          prepareTestData(configuration);
        } catch (Exception e) {
          thrown[0] = e;
        }
      }
    });
    if (thrown[0] != null) throw new RuntimeException(thrown[0]);
  }

  @Override
  protected boolean runInDispatchThread() {
    return false;
  }

  @Override
  protected void invokeTestRunnable(@NotNull Runnable runnable) throws Exception {
    // superclass's method always starts this in the EDT
    runnable.run();
  }

  protected abstract void prepareTestData(MPSFacetConfiguration configuration) throws Exception;

  protected IFile copyResource(String toPath, String resName, String fromPath) throws IOException {
    IFile targetFile = FileSystem.getInstance().getFile(toPath);

    return copyResource(resName, fromPath, targetFile);
  }

  protected IFile copyResource(String toDir, String toName, String resName, String fromPath) throws IOException {
    IFile targetDir = FileSystem.getInstance().getFileByPath(myModule.getModuleFilePath()).getParent();
    if (toDir != null) {
      targetDir = targetDir.getDescendant(toDir);
      if (!targetDir.exists()) {
        targetDir.mkdirs();
      }
    }
    IFile targetFile = targetDir.getDescendant(toName);

    return copyResource(resName, fromPath, targetFile);
  }

  private IFile copyResource(String resName, String fromPath, IFile targetFile) throws IOException {
    IFile sourceFile = FileSystem.getInstance().getFileByPath(PathManager.getPluginsPath() + fromPath);
    if (sourceFile.exists()) {
      copyContent(sourceFile.openInputStream(), targetFile.openOutputStream());
    } else {
      copyContent(DataMPSFixtureTestCase.this.getClass().getResourceAsStream(resName), targetFile.openOutputStream());
    }
    return FileSystem.getInstance().getFileByPath(targetFile.getPath());
  }

  private void copyContent(InputStream is, OutputStream os) throws IOException {
    InputStream bis = null;
    OutputStream bos = null;
    try {
      bis = new BufferedInputStream(is);
      bos = new BufferedOutputStream(os);
      int c;
      while ((c = bis.read()) >= 0) {
        bos.write(c);
      }
    } finally {
      if (bis != null) try {
        bis.close();
      } catch (IOException ignore) {
      }
      if (bos != null) try {
        bos.close();
      } catch (IOException ignore) {
      }
    }
  }

}