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   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.cassandra.tools;
  
  import java.io.IOException;
  import java.util.Arrays;
  
  import com.google.common.base.CharMatcher;
  
  import org.apache.commons.lang3.tuple.Pair;
  
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.tools.ToolRunner.ToolResult;
  import org.assertj.core.api.Assertions;
  import org.hamcrest.CoreMatchers;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertThat;
  import static org.junit.Assert.assertTrue;
  
  public class SSTableMetadataViewerTest extends OfflineToolUtils
  {
      private static String sstable;
  
      @BeforeClass
      public static void setupTest() throws IOException
      {
          sstable = findOneSSTable("legacy_sstables", "legacy_ma_simple");
      }
  
      @Test
      public void testNoArgsPrintsHelp()
      {
          ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class);
          {
              assertTrue(tool.getStdout(), tool.getStdout().isEmpty());
              assertThat(tool.getCleanedStderr(), CoreMatchers.containsStringIgnoringCase("Options:"));
              assertEquals(1, tool.getExitCode());
          }
          assertNoUnexpectedThreadsStarted(null, false);
          assertSchemaNotLoaded();
          assertCLSMNotLoaded();
          assertSystemKSNotLoaded();
          assertKeyspaceNotLoaded();
          assertServerNotLoaded();
      }
  
      @Test
      public void testMaybeChangeDocs()
      {
          // If you added, modified options or help, please update docs if necessary
          ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, "-h");
          assertEquals("You must supply at least one sstable\n" + 
                       "usage: sstablemetadata <options> <sstable...> [-c] [-g <arg>] [-h] [-s] [-t <arg>] [-u]\n" +
                       "\n" + 
                       "Dump information about SSTable[s] for Apache Cassandra 3.x\n" + 
                       "Options:\n" + 
                       "  -c,--colors                 Use ANSI color sequences\n" + 
                       "  -g,--gc_grace_seconds <arg> Time to use when calculating droppable tombstones\n" +
                       "  -h,--help                   Help\n" +
                       "  -s,--scan                   Full sstable scan for additional details. Only available in 3.0+ sstables. Defaults: false\n" +
                       "  -t,--timestamp_unit <arg>   Time unit that cell timestamps are written with\n" + 
                       "  -u,--unicode                Use unicode to draw histograms and progress bars\n\n" 
                       , tool.getCleanedStderr());
      }
  
      @Test
      public void testWrongArgFailsAndPrintsHelp()
      {
          ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, "--debugwrong", "sstableFile");
          assertTrue(tool.getStdout(), tool.getStdout().isEmpty());
          assertThat(tool.getCleanedStderr(), CoreMatchers.containsStringIgnoringCase("Options:"));
          assertEquals(1, tool.getExitCode());
      }
  
      @Test
      public void testNAFileCall()
      {
          ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, "mockFile");
          assertThat(tool.getStdout(), CoreMatchers.containsStringIgnoringCase("No such file"));
          Assertions.assertThat(tool.getCleanedStderr()).isEmpty();
          assertEquals(0, tool.getExitCode());
          assertGoodEnvPostTest();
      }
  
      @Test
      public void testOnlySstableArg()
      {
          ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, sstable);
          Assertions.assertThat(tool.getStdout()).doesNotContain(Util.BLUE);
          assertTrue(tool.getStdout(), CharMatcher.ascii().matchesAllOf(tool.getStdout()));
          Assertions.assertThat(tool.getStdout()).doesNotContain("Widest Partitions");
          Assertions.assertThat(tool.getStdout()).contains(sstable.replaceAll("-Data\\.db$", ""));
          assertTrue(tool.getCleanedStderr(), tool.getCleanedStderr().isEmpty());
          assertEquals(0, tool.getExitCode());
          assertGoodEnvPostTest();
      }
  
      @Test
      public void testColorArg()
      {
          Arrays.asList("-c",
                        "--colors")
                .stream()
                .forEach(arg -> {
                    ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, arg, sstable);
                    Assertions.assertThat(tool.getStdout()).contains(Util.BLUE);
                    Assertions.assertThat(tool.getStdout()).contains(sstable.replaceAll("-Data\\.db$", ""));
                    assertTrue("Arg: [" + arg + "]\n" + tool.getCleanedStderr(), tool.getCleanedStderr().isEmpty());
                    assertEquals(0, tool.getExitCode());
                    assertGoodEnvPostTest();
                });
      }
  
      @Test
      public void testUnicodeArg()
      {
          Arrays.asList("-u",
                        "--unicode")
                .stream()
                .forEach(arg -> {
                    ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, arg, sstable);
                    assertTrue(tool.getStdout(), !CharMatcher.ascii().matchesAllOf(tool.getStdout()));
                    Assertions.assertThat(tool.getStdout()).contains(sstable.replaceAll("-Data\\.db$", ""));
                    assertTrue("Arg: [" + arg + "]\n" + tool.getCleanedStderr(), tool.getCleanedStderr().isEmpty());
                    assertEquals(0, tool.getExitCode());
                    assertGoodEnvPostTest();
                });
      }
  
      @Test
      public void testGCArg()
      {
          Arrays.asList(Pair.of("-g", ""),
                        Pair.of("-g", "w"),
                        Pair.of("--gc_grace_seconds", ""),
                        Pair.of("--gc_grace_seconds", "w"))
                .forEach(arg -> {
                    ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class,
                                                             arg.getLeft(),
                                                             arg.getRight(),
                                                             "mockFile");
                    assertEquals(-1, tool.getExitCode());
                    Assertions.assertThat(tool.getStderr()).contains(NumberFormatException.class.getSimpleName());
                });
  
          Arrays.asList(Pair.of("-g", "5"), Pair.of("--gc_grace_seconds", "5")).forEach(arg -> {
              ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class,
                                                              arg.getLeft(),
                                                              arg.getRight(),
                                                              "mockFile");
              assertThat("Arg: [" + arg + "]", tool.getStdout(), CoreMatchers.containsStringIgnoringCase("No such file"));
              Assertions.assertThat(tool.getCleanedStderr()).as("Arg: [%s]", arg).isEmpty();
              tool.assertOnExitCode();
              assertGoodEnvPostTest();
          });
      }
  
      @Test
      public void testTSUnitArg()
      {
          Arrays.asList(Pair.of("-t", ""),
                        Pair.of("-t", "w"),
                        Pair.of("--timestamp_unit", ""),
                        Pair.of("--timestamp_unit", "w"))
                .forEach(arg -> {
                    ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class,
                                                             arg.getLeft(),
                                                             arg.getRight(),
                                                             "mockFile");
                    assertEquals(-1, tool.getExitCode());
                    Assertions.assertThat(tool.getStderr()).contains(IllegalArgumentException.class.getSimpleName());
                });
  
          Arrays.asList(Pair.of("-t", "SECONDS"), Pair.of("--timestamp_unit", "SECONDS")).forEach(arg -> {
              ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class,
                                                         arg.getLeft(),
                                                         arg.getRight(),
                                                         "mockFile");
              assertThat("Arg: [" + arg + "]", tool.getStdout(), CoreMatchers.containsStringIgnoringCase("No such file"));
              Assertions.assertThat(tool.getCleanedStderr()).as("Arg: [%s]", arg).isEmpty();
              tool.assertOnExitCode();
              assertGoodEnvPostTest();
          });
      }
  
      @Test
      public void testScanArg()
      {
          Arrays.asList("-s",
                        "--scan")
                .stream()
                .forEach(arg -> {
                    ToolResult tool = ToolRunner.invokeClass(SSTableMetadataViewer.class, arg, sstable);
                    Assertions.assertThat(tool.getStdout()).contains("Widest Partitions");
                    Assertions.assertThat(tool.getStdout()).contains(sstable.replaceAll("-Data\\.db$", ""));
                    assertTrue("Arg: [" + arg + "]\n" + tool.getCleanedStderr(), tool.getCleanedStderr().isEmpty());
                    assertEquals(0, tool.getExitCode());
                });
      }
  
      private void assertGoodEnvPostTest()
      {
          assertNoUnexpectedThreadsStarted(OPTIONAL_THREADS_WITH_SCHEMA, false);
          assertSchemaNotLoaded();
          assertCLSMNotLoaded();
          assertSystemKSNotLoaded();
          assertKeyspaceNotLoaded();
          assertServerNotLoaded();
      }
  }
  