/*
 * Copyright 2020 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.flogger;

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

/** Tests for {@link FloggerLogVarargs}. */
@RunWith(JUnit4.class)
public final class FloggerLogVarargsTest {
  @Test
  public void positive() {
    BugCheckerRefactoringTestHelper.newInstance(FloggerLogVarargs.class, getClass())
        .addInputLines(
            "Test.java",
            """
            import com.google.common.flogger.FluentLogger;

            class Test {
              private static final FluentLogger logger = FluentLogger.forEnclosingClass();

              void log(String s, Object... a) {
                logger.atInfo().log(s, a);
              }
            }
            """)
        .addOutputLines(
            "Test.java",
            """
            import com.google.common.flogger.FluentLogger;

            class Test {
              private static final FluentLogger logger = FluentLogger.forEnclosingClass();

              void log(String s, Object... a) {
                logger.atInfo().logVarargs(s, a);
              }
            }
            """)
        .doTest();
  }

  @Test
  public void positiveAnonymousClass() {
    BugCheckerRefactoringTestHelper.newInstance(FloggerLogVarargs.class, getClass())
        .addInputLines(
            "Test.java",
            """
            import com.google.common.flogger.FluentLogger;
            import java.util.function.Predicate;

            class Test {
              private static final FluentLogger logger = FluentLogger.forEnclosingClass();

              Predicate<Void> log(String s, Object... a) {
                return new Predicate<Void>() {
                  @Override
                  public boolean test(Void unused) {
                    logger.atInfo().log(s, a);
                    return true;
                  }
                };
              }
            }
            """)
        .addOutputLines(
            "Test.java",
            """
            import com.google.common.flogger.FluentLogger;
            import java.util.function.Predicate;

            class Test {
              private static final FluentLogger logger = FluentLogger.forEnclosingClass();

              Predicate<Void> log(String s, Object... a) {
                return new Predicate<Void>() {
                  @Override
                  public boolean test(Void unused) {
                    logger.atInfo().logVarargs(s, a);
                    return true;
                  }
                };
              }
            }
            """)
        .doTest();
  }

  @Test
  public void negative() {
    CompilationTestHelper.newInstance(FloggerLogVarargs.class, getClass())
        .addSourceLines(
            "Test.java",
            """
            import com.google.common.flogger.FluentLogger;

            class Test {
              private static final FluentLogger logger = FluentLogger.forEnclosingClass();

              void log(String s, Object a) {
                logger.atInfo().log(s, a);
              }

              void bar() {
                logger.atInfo().log("foo", new Object[] {1});
              }
            }
            """)
        .doTest();
  }
}
