/*
 * Copyright 2025 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 com.google.errorprone.CompilationTestHelper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public final class MisleadingEmptyVarargsTest {
  private final CompilationTestHelper helper =
      CompilationTestHelper.newInstance(MisleadingEmptyVarargs.class, getClass());

  @Test
  public void positive() {
    helper
        .addSourceLines(
            "Test.java",
            """
            import static org.mockito.Mockito.doThrow;
            import static org.mockito.Mockito.mock;
            import static org.mockito.Mockito.when;

            class Test {
              public Object test() {
                Test test = mock(Test.class);
                // BUG: Diagnostic contains:
                when(test.test()).thenThrow();

                // BUG: Diagnostic contains:
                doThrow().when(test).test();
                return null;
              }
            }
            """)
        .doTest();
  }

  @Test
  public void negative() {
    helper
        .addSourceLines(
            "Test.java",
            """
            import static org.mockito.Mockito.doThrow;
            import static org.mockito.Mockito.mock;
            import static org.mockito.Mockito.when;

            class Test {
              public Object test() {
                Test test = mock(Test.class);
                when(test.test()).thenThrow(new IllegalStateException());
                doThrow(new IllegalStateException()).when(test).test();
                return null;
              }
            }
            """)
        .doTest();
  }
}
