/*
* Copyright (c) 2013 - 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.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 MemoryLeakTest {

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

  private static ImmutableList<String> inferCmd;

  public static final String MEMORY_LEAK = "MEMORY_LEAK";

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

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

  @Test
  public void whenInferRunsOnLayoutSubviewsThenMLIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain memory leak",
        inferResults,
        doesNotContain(
            MEMORY_LEAK,
            memory_leak_file,
            "layoutSubviews"));
  }

  @Test
  public void whenInferRunsOnTestThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain memory leak",
        inferResults,
        contains(
            MEMORY_LEAK,
            memory_leak_file,
            "test"
        )
    );
  }

  @Test
  public void whenInferRunsOnMeasureFrameSizeForTextThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain memory leak",
        inferResults,
        contains(
            MEMORY_LEAK,
            memory_leak_file,
            "measureFrameSizeForText"
        )
    );
  }

  @Test
  public void whenInferRunsOnMeasureFrameSizeForTextNoLeakThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain a memory leak",
        inferResults,
        doesNotContain(
            MEMORY_LEAK,
            memory_leak_file,
            "measureFrameSizeForTextNoLeak"));
  }

  @Test
  public void whenInferRunsOnTest1ThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain memory leak",
        inferResults,
        contains(
            MEMORY_LEAK,
            memory_leak_file,
            "test1"
        )
    );
  }

  @Test
  public void whenInferRunsOnTest1NoLeakThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain a memory leak",
        inferResults,
        doesNotContain(
            MEMORY_LEAK,
            memory_leak_file,
            "test1NoLeak"));
  }

  @Test
  public void whenInferRunsOn_createCloseCrossGlyphWithRectThenMLIsFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain memory leak",
        inferResults,
        contains(
            MEMORY_LEAK,
            memory_leak_file,
            "createCloseCrossGlyph:"
        )
    );
  }

  @Test
  public void whenInferRunsOn_createCloseCrossGlyphWithRectNoLeakThenMLIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain a memory leak",
        inferResults,
        doesNotContain(
            MEMORY_LEAK,
            memory_leak_file,
            "createCloseCrossGlyphNoLeak:"));
  }

  @Test
  public void whenInferRunsOnTest2ThenMLIFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should contain memory leak",
        inferResults,
        contains(
            MEMORY_LEAK,
            memory_leak_file,
            "test2"
        )
    );
  }

  @Test
  public void whenInferTest2NoLakNoLeakThenMLIsNotFound()
      throws InterruptedException, IOException, InferException {
    InferResults inferResults = InferRunner.runInferObjC(inferCmd);
    assertThat(
        "Results should not contain a memory leak",
        inferResults,
        doesNotContain(
            MEMORY_LEAK,
            memory_leak_file,
            "test2NoLeak"));
  }

}