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

package endtoend.objc;

import static org.hamcrest.MatcherAssert.assertThat;
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 NilParamDerefObjCClassTest {

  public static final String NIL_PARAM_FILE =
      "infer/tests/codetoanalyze/objc/errors/npe/nil_param.m";

  private static ImmutableList<String> inferCmdNil;

  public static final String NULL_DEREFERENCE = "NULL_DEREFERENCE";


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

  @BeforeClass
  public static void runInfer() throws InterruptedException, IOException {
    inferCmdNil = InferRunner.createObjCInferCommand(folderNil, NIL_PARAM_FILE);
  }


  @Test
  public void whenInferRunsOnNil_ParamNoErrorsAreFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmdNil);
    assertThat(
        "Results should not contain null point dereference",
        inferResults,
        doesNotContain(
            NULL_DEREFERENCE,
            NIL_PARAM_FILE,
            "test1:"));
  }

}