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Merge pull request #15 from Oli180369/Issue14
Unit test for issue #14
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src/test/kotlin/com/github/thake/logminer/kafka/connect/issues/Issue14Test.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,130 @@ | ||
| package com.github.thake.logminer.kafka.connect.issues | ||
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| import com.github.thake.logminer.kafka.connect.* | ||
| import io.kotest.matchers.collections.shouldBeEmpty | ||
| import io.kotest.matchers.collections.shouldHaveSize | ||
| import io.kotest.matchers.nulls.shouldBeNull | ||
| import org.apache.kafka.connect.data.Struct | ||
| import org.apache.kafka.connect.source.SourceRecord | ||
| import org.apache.kafka.connect.source.SourceTaskContext | ||
| import org.apache.kafka.connect.storage.OffsetStorageReader | ||
| import org.junit.jupiter.api.AfterEach | ||
| import org.junit.jupiter.api.Assertions.assertEquals | ||
| import org.junit.jupiter.api.Assertions.assertTrue | ||
| import org.junit.jupiter.api.BeforeEach | ||
| import org.junit.jupiter.api.Test | ||
| import org.slf4j.LoggerFactory | ||
| import org.testcontainers.junit.jupiter.Testcontainers | ||
| import java.sql.Connection | ||
| import java.sql.Types | ||
| import java.util.* | ||
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| @Testcontainers | ||
| class Issue14Test : AbstractIntegrationTest() { | ||
| private lateinit var sourceTask: SourceTask | ||
| private lateinit var offsetManager: MockOffsetStorageReader | ||
| private lateinit var defaultConfig: Map<String, String> | ||
| private val log = LoggerFactory.getLogger(Issue14Test::class.java) | ||
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| private class TestSourceTaskContext( | ||
| val configs: Map<String, String>, | ||
| private val storageReader: OffsetStorageReader = MockOffsetStorageReader() | ||
| ) : SourceTaskContext { | ||
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| override fun configs(): MutableMap<String, String> { | ||
| return this.configs.toMutableMap() | ||
| } | ||
|
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| override fun offsetStorageReader(): OffsetStorageReader { | ||
| return storageReader | ||
| } | ||
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|
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| } | ||
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| private class MockOffsetStorageReader : OffsetStorageReader { | ||
| private var currentOffset = mutableMapOf<String, Any?>() | ||
| fun updateOffset(offset: MutableMap<String, Any?>) { | ||
| currentOffset = offset | ||
| } | ||
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| override fun <T : Any?> offsets(partitions: MutableCollection<MutableMap<String, T>>?): MutableMap<MutableMap<String, T>, MutableMap<String, Any>> { | ||
| return Collections.emptyMap() | ||
| } | ||
|
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| override fun <T : Any?> offset(partition: MutableMap<String, T>?): MutableMap<String, Any?> { | ||
| return currentOffset | ||
| } | ||
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| } | ||
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| @BeforeEach | ||
| fun setup() { | ||
| defaultConfig = | ||
| with(SourceConnectorConfig.Companion) { | ||
| mapOf( | ||
| BATCH_SIZE to "1000", | ||
| DB_NAME to "test", | ||
| DB_FETCH_SIZE to "10000", | ||
| DB_SID to oracle.sid, | ||
| DB_HOST to oracle.containerIpAddress, | ||
| DB_PORT to oracle.oraclePort.toString(), | ||
| DB_USERNAME to oracle.username, | ||
| DB_PASSWORD to oracle.password, | ||
| START_SCN to "0", | ||
| MONITORED_TABLES to STANDARD_TABLE.fullName + ", " + SECOND_TABLE.fullName | ||
| ) | ||
| } | ||
| sourceTask = SourceTask() | ||
| offsetManager = MockOffsetStorageReader() | ||
| sourceTask.initialize(TestSourceTaskContext(defaultConfig, offsetManager)) | ||
| //Wait for tables to correctly initialize | ||
| Thread.sleep(5000) | ||
| } | ||
|
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| private fun createConfiguration(map: Map<String, String>? = null): Map<String, String> { | ||
| return defaultConfig.toMutableMap().apply { map?.let { putAll(it) } } | ||
| } | ||
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| @AfterEach | ||
| fun tearDown() { | ||
| sourceTask.stop() | ||
| } | ||
|
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| @Test | ||
| fun testUpdateColumnToNull() { | ||
| sourceTask.start( | ||
| createConfiguration( | ||
| mapOf( | ||
| SourceConnectorConfig.BATCH_SIZE to "10" | ||
| ) | ||
| ) | ||
| ) | ||
| val modifyingConnection = openConnection() | ||
| //Initial state | ||
| modifyingConnection.insertRow(1) | ||
| var result = sourceTask.poll().toMutableList() | ||
| assertTrue(result.isNotEmpty()) | ||
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| modifyingConnection.prepareStatement("UPDATE ${STANDARD_TABLE.fullName} SET STRING = ?").use { stmt -> | ||
| stmt.setNull(1, Types.NVARCHAR) | ||
| stmt.executeUpdate() | ||
| } | ||
|
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| result = sourceTask.readAllSourceRecords() as MutableList<SourceRecord> | ||
| assertTrue(result.size == 1) | ||
| ((result[0].value() as Struct).get("after") as Struct).getString("STRING").shouldBeNull() | ||
| } | ||
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| private fun SourceTask.readAllSourceRecords(): List<SourceRecord> { | ||
| val result = mutableListOf<SourceRecord>() | ||
| while (true) { | ||
| val currentResult = poll() | ||
| if (currentResult.isEmpty()) { | ||
| break | ||
| } else { | ||
| result.addAll(currentResult) | ||
| } | ||
| } | ||
| return result | ||
| } | ||
| } |