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/*
 * Copyright 2020 the original author or 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
 * 

 * https://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 org.openrewrite.java.tree;

import org.junit.jupiter.api.Test;
import org.openrewrite.test.RewriteTest;

import static org.openrewrite.java.Assertions.java;

@SuppressWarnings({"StatementWithEmptyBody", "ConstantConditions", "ReassignedVariable", "UnusedAssignment"})
class IfTest implements RewriteTest {

    @Test
    void ifElse() {
        rewriteRun(
          java(
            """
              class Test {
                  void test() {
                      int n = 0;
                      if(n == 0) {
                      }
                      else if(n == 1) {
                      }
                      else {
                      }
                  }
              }
              """
          )
        );
    }

    @Test
    void noElse() {
        rewriteRun(
          java(
            """
              class Test {
                  void test() {
                      int n = 0;
                      if (n == 0) {
                      }
                  }
              }
              """
          )
        );
    }

    @Test
    void singleLineIfElseStatements() {
        rewriteRun(
          java(
            """
              class Test {
                  void test() {
                      int n = 0;
                      if (n == 0) n++;
                      else if (n == 1) n++;
                      else n++;
                  }
              }
              """
          )
        );
    }

    @SuppressWarnings("TrailingWhitespacesInTextBlock")
    @Test
    void elseWithTrailingSpace() {
        rewriteRun(
          java(
            """
              class Test {
                  void test() {
                      if (true) {
                      }
                      else{ 
                          System.out.println("test");
                      }
                  }
              }
              """
          )
        );
    }
}