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feat: Add toByteString/fromByteString for ChangeStreamContinuationToken
This will be used by the beam connector to write/read to a Bigtable table. This PR also does: 1. Revert the changes in googleapis#1345 since we can use Mockito to create mock objects for testing.
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Teng Zhong
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Aug 11, 2022
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99
...test/java/com/google/cloud/bigtable/data/v2/models/ChangeStreamContinuationTokenTest.java
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| /* | ||
| * Copyright 2022 Google LLC | ||
| * | ||
| * 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 com.google.cloud.bigtable.data.v2.models; | ||
|
|
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| import static com.google.common.truth.Truth.assertThat; | ||
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| import com.google.bigtable.v2.RowRange; | ||
| import com.google.bigtable.v2.StreamContinuationToken; | ||
| import com.google.bigtable.v2.StreamPartition; | ||
| import com.google.cloud.bigtable.data.v2.models.Range.ByteStringRange; | ||
| import java.io.ByteArrayInputStream; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.ObjectInputStream; | ||
| import java.io.ObjectOutputStream; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
| import org.junit.runners.JUnit4; | ||
|
|
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| @RunWith(JUnit4.class) | ||
| public class ChangeStreamContinuationTokenTest { | ||
|
|
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| private final String TOKEN = "token"; | ||
|
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| private ByteStringRange createFakeByteStringRange() { | ||
| return ByteStringRange.create("a", "b"); | ||
| } | ||
|
|
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| // TODO: Get rid of this once we change ChangeStreamContinuationToken::getRowRange() | ||
| // to ChangeStreamContinuationToken::getByteStringRange(). | ||
| private RowRange rowRangeFromByteStringRange(ByteStringRange byteStringRange) { | ||
| return RowRange.newBuilder() | ||
| .setStartKeyClosed(byteStringRange.getStart()) | ||
| .setEndKeyOpen(byteStringRange.getEnd()) | ||
| .build(); | ||
| } | ||
|
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| @Test | ||
| public void basicTest() throws Exception { | ||
| ByteStringRange byteStringRange = createFakeByteStringRange(); | ||
| ChangeStreamContinuationToken changeStreamContinuationToken = | ||
| new ChangeStreamContinuationToken(byteStringRange, TOKEN); | ||
| Assert.assertEquals( | ||
| changeStreamContinuationToken.getRowRange(), rowRangeFromByteStringRange(byteStringRange)); | ||
| Assert.assertEquals(changeStreamContinuationToken.getToken(), TOKEN); | ||
|
|
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| ByteArrayOutputStream bos = new ByteArrayOutputStream(); | ||
| ObjectOutputStream oos = new ObjectOutputStream(bos); | ||
| oos.writeObject(changeStreamContinuationToken); | ||
| oos.close(); | ||
| ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray())); | ||
| ChangeStreamContinuationToken actual = (ChangeStreamContinuationToken) ois.readObject(); | ||
| assertThat(actual).isEqualTo(changeStreamContinuationToken); | ||
| } | ||
|
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||
| @Test | ||
| public void toProtoTest() { | ||
| ByteStringRange byteStringRange = createFakeByteStringRange(); | ||
| RowRange fakeRowRange = rowRangeFromByteStringRange(byteStringRange); | ||
| StreamContinuationToken proto = | ||
| StreamContinuationToken.newBuilder() | ||
| .setPartition(StreamPartition.newBuilder().setRowRange(fakeRowRange).build()) | ||
| .setToken(TOKEN) | ||
| .build(); | ||
| ChangeStreamContinuationToken changeStreamContinuationToken = | ||
| ChangeStreamContinuationToken.fromProto(proto); | ||
| Assert.assertEquals(changeStreamContinuationToken.getRowRange(), fakeRowRange); | ||
| Assert.assertEquals(changeStreamContinuationToken.getToken(), TOKEN); | ||
| Assert.assertEquals( | ||
| changeStreamContinuationToken, | ||
| ChangeStreamContinuationToken.fromProto(changeStreamContinuationToken.toProto())); | ||
| } | ||
|
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| @Test | ||
| public void toByteStringTest() throws Exception { | ||
| ByteStringRange byteStringRange = createFakeByteStringRange(); | ||
| ChangeStreamContinuationToken changeStreamContinuationToken = | ||
| new ChangeStreamContinuationToken(byteStringRange, TOKEN); | ||
| Assert.assertEquals( | ||
| changeStreamContinuationToken.getRowRange(), rowRangeFromByteStringRange(byteStringRange)); | ||
| Assert.assertEquals(changeStreamContinuationToken.getToken(), TOKEN); | ||
| Assert.assertEquals( | ||
| changeStreamContinuationToken, | ||
| ChangeStreamContinuationToken.fromByteString(changeStreamContinuationToken.toByteString())); | ||
| } | ||
| } |