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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.common.unit;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import static org.elasticsearch.common.unit.ByteSizeUnit.BYTES;
import static org.elasticsearch.common.unit.ByteSizeUnit.GB;
import static org.elasticsearch.common.unit.ByteSizeUnit.KB;
import static org.elasticsearch.common.unit.ByteSizeUnit.MB;
import static org.elasticsearch.common.unit.ByteSizeUnit.PB;
import static org.elasticsearch.common.unit.ByteSizeUnit.TB;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
public class ByteSizeUnitTests extends ESTestCase {
public void testBytes() {
assertThat(BYTES.toBytes(1), equalTo(1L));
assertThat(BYTES.toKB(1024), equalTo(1L));
assertThat(BYTES.toMB(1024 * 1024), equalTo(1L));
assertThat(BYTES.toGB(1024 * 1024 * 1024), equalTo(1L));
}
public void testKB() {
assertThat(KB.toBytes(1), equalTo(1024L));
assertThat(KB.toKB(1), equalTo(1L));
assertThat(KB.toMB(1024), equalTo(1L));
assertThat(KB.toGB(1024 * 1024), equalTo(1L));
}
public void testMB() {
assertThat(MB.toBytes(1), equalTo(1024L * 1024));
assertThat(MB.toKB(1), equalTo(1024L));
assertThat(MB.toMB(1), equalTo(1L));
assertThat(MB.toGB(1024), equalTo(1L));
}
public void testGB() {
assertThat(GB.toBytes(1), equalTo(1024L * 1024 * 1024));
assertThat(GB.toKB(1), equalTo(1024L * 1024));
assertThat(GB.toMB(1), equalTo(1024L));
assertThat(GB.toGB(1), equalTo(1L));
}
public void testTB() {
assertThat(TB.toBytes(1), equalTo(1024L * 1024 * 1024 * 1024));
assertThat(TB.toKB(1), equalTo(1024L * 1024 * 1024));
assertThat(TB.toMB(1), equalTo(1024L * 1024));
assertThat(TB.toGB(1), equalTo(1024L));
assertThat(TB.toTB(1), equalTo(1L));
}
public void testPB() {
assertThat(PB.toBytes(1), equalTo(1024L * 1024 * 1024 * 1024 * 1024));
assertThat(PB.toKB(1), equalTo(1024L * 1024 * 1024 * 1024));
assertThat(PB.toMB(1), equalTo(1024L * 1024 * 1024));
assertThat(PB.toGB(1), equalTo(1024L * 1024));
assertThat(PB.toTB(1), equalTo(1024L));
assertThat(PB.toPB(1), equalTo(1L));
}
public void testSerialization() throws IOException {
for (ByteSizeUnit unit : ByteSizeUnit.values()) {
try (BytesStreamOutput out = new BytesStreamOutput()) {
unit.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
ByteSizeUnit deserialized = ByteSizeUnit.readFrom(in);
assertEquals(unit, deserialized);
}
}
}
}
public void testFromUnknownId() throws IOException {
final byte randomId = (byte) randomIntBetween(ByteSizeUnit.values().length + 1, 100);
IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> ByteSizeUnit.fromId(randomId));
assertThat(e.getMessage(), containsString("No byte size unit found for id [" + String.valueOf(randomId) + "]"));
}
}
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