/*
 * Copyright 2016 The Error Prone Authors.
 *
 * 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 com.google.errorprone.bugpatterns;

import static com.google.errorprone.BugCheckerRefactoringTestHelper.TestMode.TEXT_MATCH;

import com.google.errorprone.BugCheckerRefactoringTestHelper;
import com.google.errorprone.CompilationTestHelper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** {@link MixedArrayDimensions}Test */
@RunWith(JUnit4.class)
public class MixedArrayDimensionsTest {

  @Test
  public void positiveVariable() {
    BugCheckerRefactoringTestHelper.newInstance(MixedArrayDimensions.class, getClass())
        .addInputLines(
            "in/Test.java",
            """
            abstract class Test {
              int a[] = null;
              int[] b[][];
              int[][] c[] = null;
              int[][] d[][];
            }
            """)
        .addOutputLines(
            "out/Test.java",
            """
            abstract class Test {
              int[] a = null;
              int[][][] b;
              int[][][] c = null;
              int[][][][] d;
            }
            """)
        .doTest(TEXT_MATCH);
  }

  @Test
  public void positiveMethod() {
    BugCheckerRefactoringTestHelper.newInstance(MixedArrayDimensions.class, getClass())
        .addInputLines(
            "in/Test.java",
            """
            abstract class Test {
              int f()[] {
                return null;
              }

              abstract int[] g()[];

              int[] h()[][] {
                return null;
              }

              abstract int[][] i()[][];
            }
            """)
        .addOutputLines(
            "out/Test.java",
            """
            abstract class Test {
              int[] f() {
                return null;
              }

              abstract int[][] g();

              int[][][] h() {
                return null;
              }

              abstract int[][][][] i();
            }
            """)
        .doTest(TEXT_MATCH);
  }

  @Test
  public void negative() {
    CompilationTestHelper.newInstance(MixedArrayDimensions.class, getClass())
        .addSourceLines(
            "Test.java",
            """
            abstract class Test {
              int[] f() {
                return null;
              }

              abstract int[][] g();

              int[][][] h() {
                return null;
              }

              abstract int[][][][] i();

              int[] a = null;

              void f(boolean[]... xs) {}
            }
            """)
        .doTest();
  }

  @Test
  public void negativeInSimpleCharStream() {
    CompilationTestHelper.newInstance(MixedArrayDimensions.class, getClass())
        .addSourceLines(
            "SimpleCharStream.java",
            """
            final class SimpleCharStream {
              void test() {
                int a[];
              }
            }
            """)
        .doTest();
  }

  @Test
  public void comment() {
    CompilationTestHelper.newInstance(MixedArrayDimensions.class, getClass())
        .addSourceLines(
            "Test.java",
            """
            abstract class Test {
              int /*@Nullable*/[] x;
            }
            """)
        .doTest();
  }
}
