infer_clone/infer/tests/endtoend/java/incremental/ChangedOnlyFuture.java

/*
* Copyright (c) 2015 - present Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

package endtoend.java.incremental;

import static org.hamcrest.MatcherAssert.assertThat;
import static utils.matchers.NumberOfFilesAnalyzed.numberOfFilesAnalyzed;
import static utils.matchers.NumberOfProceduresAnalyzed.numberOfProceduresAnalyzed;

import org.junit.BeforeClass;
import org.junit.Test;

import java.io.IOException;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.io.*;

import utils.InferException;
import utils.InferStats;

/**
 * Make sure the incremental --changed-only mode doesn't corrupt the results for future analyses by
 * refusing to analyze callers of changed procedures (and thereby creating stale specs for some poor
 * future analysis).
 */
public class ChangedOnlyFuture {

  public static final String SOURCE_DIR =
      "/infer/tests/codetoanalyze/java/incremental/changed_only_future/";

  private static InferStats inferStats;

  @BeforeClass
  public static void loadResults() throws InterruptedException, IOException {
    inferStats = InferStats.loadInferStats(ChangedOnlyModeTest.class, SOURCE_DIR);
  }

  @Test
  public void onlyChangedFileReanalyzedInChangedOnlyMode()
      throws IOException, InterruptedException, InferException {
    assertThat(
        "Only the changed file should be re-analyzed",
        inferStats,
        numberOfFilesAnalyzed(1));
  }

  @Test
  public void changedAndStaleProcsReanalyze()
      throws IOException, InterruptedException, InferException {
    assertThat(
        "Both the new (changed) procedure and its stale (unchanged) callee should be re-analyzed",
        inferStats,
        numberOfProceduresAnalyzed(2));
  }

}