infer_clone/infer/tests/endtoend/objc/RetainCycleTest.java

/*
 * Copyright (c) 2013- Facebook.
 * All rights reserved.
 */

package endtoend.objc;

import static org.hamcrest.MatcherAssert.assertThat;
import static utils.matchers.ResultContainsErrorInMethod.contains;
import static utils.matchers.ResultContainsNoErrorInMethod.doesNotContain;

import com.google.common.collect.ImmutableList;

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

import java.io.IOException;

import utils.DebuggableTemporaryFolder;
import utils.InferException;
import utils.InferResults;
import utils.InferRunner;

public class RetainCycleTest {

  public static final String retain_cycle_file =
      "infer/tests/codetoanalyze/objc/errors/" +
          "memory_leaks_benchmark/retain_cycle.m";

  private static ImmutableList<String> inferCmd;

  public static final String RETAIN_CYCLE = "RETAIN_CYCLE";

  @ClassRule
  public static DebuggableTemporaryFolder folder =
      new DebuggableTemporaryFolder();

  @BeforeClass
  public static void runInfer() throws InterruptedException, IOException {
    inferCmd = InferRunner.createiOSInferCommandWithMLBuckets(
        folder,
        retain_cycle_file,
        "cf",
        true);
  }



  @Test
  public void whenInferRunsOnStrongCycleThenRCIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain retain cycle",
        inferResults,
        contains(
            RETAIN_CYCLE,
            retain_cycle_file,
            "strongcycle"));
  }

  @Test
  public void whenInferRunsOnUnsafeUnretainedCycleThenIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain memory leak",
        inferResults,
        doesNotContain(
            RETAIN_CYCLE,
            retain_cycle_file,
            "unsafeunretainedcycle"));
  }

  @Test
  public void whenInferRunsOnWeakCycleThenIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain memory leak",
        inferResults,
        doesNotContain(
            RETAIN_CYCLE,
            retain_cycle_file,
            "weakcycle"));
  }


  @Test
  public void whenInferRunsOnAssignCycleThenIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain memory leak",
        inferResults,
        doesNotContain(
            RETAIN_CYCLE,
            retain_cycle_file,
            "assigncycle"));
  }


}