content: /*
   * 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.db.marshal;
  
  import org.apache.cassandra.Util;
  import org.apache.cassandra.io.util.DataOutputPlus;
  import org.apache.cassandra.serializers.MarshalException;
  import org.apache.cassandra.utils.AbstractTypeGenerators;
  import org.apache.cassandra.utils.Pair;
  import org.apache.cassandra.utils.UUIDGen;
  import org.assertj.core.api.Assertions;
  import org.mockito.Mockito;
  import org.quicktheories.core.Gen;
  import org.quicktheories.generators.SourceDSL;
  
  import org.junit.Test;
  
  import java.io.IOException;
  import java.io.UnsupportedEncodingException;
  import java.nio.ByteBuffer;
  import java.nio.CharBuffer;
  import java.util.UUID;
  
  import static org.apache.cassandra.utils.AbstractTypeGenerators.getTypeSupport;
  import static org.apache.cassandra.utils.AbstractTypeGenerators.primitiveTypeGen;
  import static org.apache.cassandra.utils.AbstractTypeGenerators.userTypeGen;
  import static org.apache.cassandra.utils.TimeUUID.Generator.nextTimeUUIDAsBytes;
  import static org.assertj.core.api.Assertions.assertThatThrownBy;
  import static org.quicktheories.QuickTheory.qt;
  
  public class TypeValidationTest
  {
      @Test(expected = MarshalException.class)
      public void testInvalidAscii()
      {
          AsciiType.instance.validate(ByteBuffer.wrap(new byte[]{ (byte)0x80 }));
      }
  
      @Test(expected = MarshalException.class)
      public void testInvalidTimeUUID()
      {
          UUID uuid = UUID.randomUUID();
          TimeUUIDType.instance.validate(ByteBuffer.wrap(UUIDGen.decompose(uuid)));
      }
  
      @Test
      public void testValidTimeUUID()
      {
          TimeUUIDType.instance.validate(ByteBuffer.wrap(nextTimeUUIDAsBytes()));
      }
  
      @Test
      public void testLong()
      {
          LongType.instance.validate(Util.getBytes(5L));
          LongType.instance.validate(Util.getBytes(5555555555555555555L));
      }
  
      @Test
      public void testInt()
      {
          Int32Type.instance.validate(Util.getBytes(5));
          Int32Type.instance.validate(Util.getBytes(2057022603));
      }
  
      @Test
      public void testWriteValueWrongFixedLength()
      {
          DataOutputPlus output = Mockito.mock(DataOutputPlus.class);
  
          assertThatThrownBy(() -> Int32Type.instance.writeValue(Util.getBytes(42L), output))
          .isInstanceOf(IOException.class).hasMessageContaining("Expected exactly 4 bytes, but was 8");
          assertThatThrownBy(() -> LongType.instance.writeValue(Util.getBytes(42), output))
          .isInstanceOf(IOException.class).hasMessageContaining("Expected exactly 8 bytes, but was 4");
          assertThatThrownBy(() -> UUIDType.instance.writeValue(Util.getBytes(42L), output))
          .isInstanceOf(IOException.class).hasMessageContaining("Expected exactly 16 bytes, but was 8");
  
          Mockito.verifyNoInteractions(output);
      }
  
      @Test
      public void testValidUtf8() throws UnsupportedEncodingException
      {
          assert Character.MAX_CODE_POINT == 0x0010ffff;
          CharBuffer cb = CharBuffer.allocate(2837314);
          // let's test all of the unicode space.
          for (int i = 0; i < Character.MAX_CODE_POINT; i++)
          {
              // skip U+D800..U+DFFF. those CPs are invalid in utf8. java tolerates them, but doesn't convert them to
              // valid byte sequences (gives us '?' instead), so there is no point testing them.
              if (i >= 55296 && i <= 57343)
                  continue;
              char[] ch = Character.toChars(i);
              for (char c : ch)
                  cb.append(c);
          }
          String s = new String(cb.array());
          byte[] arr = s.getBytes("UTF8");
          ByteBuffer buf = ByteBuffer.wrap(arr);
          UTF8Type.instance.validate(buf);
  
          // some you might not expect.
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {}));
          // valid Utf8, unspecified in modified utf8.
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {0}));
  
          // modified utf8 null.
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {99, (byte)0xc0, (byte)0x80, 112}));
  
          // edges, for my sanity.
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xc2, (byte)0x81}));
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xe0, (byte)0xa0, (byte)0x81}));
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xf0, (byte)0x90, (byte)0x81, (byte)0x81}));
      }
  
      // now test for bogies.
  
      @Test(expected = MarshalException.class)
      public void testFloatingc0()
      {
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {99, (byte)0xc0, 112}));
      }
  
      @Test(expected = MarshalException.class)
      public void testInvalid2nd()
      {
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xc2, (byte)0xff}));
      }
  
      @Test(expected = MarshalException.class)
      public void testInvalid3rd()
      {
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xe0, (byte)0xa0, (byte)0xff}));
      }
  
      @Test(expected = MarshalException.class)
      public void testInvalid4th()
      {
          UTF8Type.instance.validate(ByteBuffer.wrap(new byte[] {(byte)0xf0, (byte)0x90, (byte)0x81, (byte)0xff}));
      }
  
      private static Gen<? extends TupleType> flatTupleGen()
      {
          return AbstractTypeGenerators.tupleTypeGen(primitiveTypeGen(), SourceDSL.integers().between(0, 20));
      }
  
      private static Gen<? extends TupleType> nestedTupleGen()
      {
          return AbstractTypeGenerators.tupleTypeGen();
      }
  
      private static Gen<? extends TupleType> flatUDTGen()
      {
          return userTypeGen(primitiveTypeGen(), SourceDSL.integers().between(0, 20));
      }
  
      private static  Gen<? extends TupleType> nestedUDTGen()
      {
          return AbstractTypeGenerators.userTypeGen();
      }
  
      @Test
      public void buildAndSplitTupleFlat()
      {
          buildAndSplit(flatTupleGen());
      }
  
      @Test
      public void buildAndSplitTupleNested()
      {
          buildAndSplit(nestedTupleGen());
      }
  
      @Test
      public void buildAndSplitUDTFlat()
      {
          buildAndSplit(flatUDTGen());
      }
  
      @Test
      public void buildAndSplitUDTNested()
      {
          buildAndSplit(nestedUDTGen());
      }
  
      private static void buildAndSplit(Gen<? extends TupleType> baseGen)
      {
          qt().forAll(tupleWithValueGen(baseGen)).checkAssert(pair -> {
              TupleType tuple = pair.left;
              ByteBuffer value = pair.right;
              Assertions.assertThat(tuple.pack(tuple.unpack(value), ByteBufferAccessor.instance))
                        .as("tuple.pack(tuple.unpack(value)) == value")
                        .isEqualTo(value);
          });
      }
  
      @Test
      public void validateTupleFlat()
      {
          validate(flatTupleGen());
      }
  
      @Test
      public void validateTupleNested()
      {
          validate(nestedTupleGen());
      }
  
      private static void validate(Gen<? extends TupleType> baseGen)
      {
          qt().forAll(tupleWithValueGen(baseGen)).checkAssert(pair -> {
              TupleType tuple = pair.left;
              ByteBuffer value = pair.right;
              tuple.validate(value);
          });
      }
  
      private static Gen<Pair<TupleType, ByteBuffer>> tupleWithValueGen(Gen<? extends TupleType> baseGen)
      {
          Gen<Pair<TupleType, ByteBuffer>> gen = rnd -> {
              TupleType type = baseGen.generate(rnd);
              return Pair.create(type, getTypeSupport(type).valueGen.generate(rnd));
          };
          gen = gen.describedAs(pair -> pair.left.asCQL3Type().toString());
          return gen;
      }
  
      @Test
      public void validateUDTFlat()
      {
          validate(flatUDTGen());
      }
  
      @Test
      public void validateUDTNested()
      {
          validate(nestedUDTGen());
      }
  
      // todo: for completeness, should test invalid two byte pairs.
  }
  