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.sidecar.common.server.utils;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.ValueSource;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
  
  /**
   * Unit tests for {@link ByteUtils}
   */
  class ByteUtilsTest
  {
      @ParameterizedTest
      @ValueSource(longs = { -1L, -10L, -100L, -1024L, Long.MIN_VALUE })
      void failsWithNegativeInputs(long bytes)
      {
          assertThatIllegalArgumentException().isThrownBy(() -> ByteUtils.bytesToHumanReadableBinaryPrefix(bytes))
                                              .withMessage("bytes cannot be negative");
      }
  
      @Test
      void testToHumanReadableBinaryPrefix()
      {
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(0)).isEqualTo("0 B");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(1152921504606846976L)).isEqualTo("1.00 EiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(1152921504606846977L)).isEqualTo("1.00 EiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(Long.MAX_VALUE)).isEqualTo("8.00 EiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(64)).isEqualTo("64 B");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(3221225472L)).isEqualTo("3.00 GiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(4L * 1024 * 1024)).isEqualTo("4.00 MiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(4L * 1024 * 1024 * 1024)).isEqualTo("4.00 GiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(4L * 1024 * 1024 * 1024 * 1024)).isEqualTo("4.00 TiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(4L * 1024 * 1024 * 1024 * 1024 * 1024))
          .isEqualTo("4.00 PiB");
          assertThat(ByteUtils.bytesToHumanReadableBinaryPrefix(4L * 1024 * 1024 * 1024 * 1024 * 1024 * 1024))
          .isEqualTo("4.00 EiB");
      }
  }
  