diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.kt
new file mode 100644
index 00000000..d00f4482
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.kt
@@ -0,0 +1,46 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor
+
+import org.junit.jupiter.api.Test
+import org.springframework.batch.core.BatchStatus
+import org.springframework.batch.core.Job
+import org.springframework.batch.core.JobParametersBuilder
+import org.springframework.batch.core.launch.JobLauncher
+import org.springframework.beans.factory.getBean
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+open class SampleApplicationTest {
+    @Test
+    fun run() {
+        val applicationContext = runApplication<SampleApplicationTest>()
+        val jobLauncher = applicationContext.getBean<JobLauncher>()
+        val job = applicationContext.getBean<Job>("testJob")
+
+        val jobParameters = JobParametersBuilder()
+            .addLong("totalCount", 20L)
+            .toJobParameters()
+        val jobExecution = jobLauncher.run(job, jobParameters)
+
+        assert(BatchStatus.COMPLETED == jobExecution.status)
+        println(jobExecution)
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.kt
new file mode 100644
index 00000000..6d0ec653
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.kt
@@ -0,0 +1,50 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamFluxReaderProcessor
+import org.springframework.batch.core.configuration.annotation.StepScope
+import org.springframework.batch.item.ExecutionContext
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.stereotype.Component
+import reactor.core.publisher.Flux
+
+@Component
+@StepScope
+open class SampleTasklet(
+    @Value("#{jobParameters['totalCount']}") private var totalCount: Long,
+) : ItemStreamFluxReaderProcessor<Int, String> {
+    private var count = 0
+
+    override fun readFlux(executionContext: ExecutionContext): Flux<out Int> {
+        println("totalCount: $totalCount")
+        return Flux.generate { sink ->
+            if (count < totalCount) {
+                sink.next(count)
+                ++count
+            } else {
+                sink.complete()
+            }
+        }
+    }
+
+    override fun process(item: Int): String? {
+        return "'$item'"
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.kt
new file mode 100644
index 00000000..23dc2f79
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.kt
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor
+
+import com.navercorp.spring.batch.plus.kotlin.configuration.BatchDsl
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemProcessor
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemStreamReader
+import org.springframework.batch.core.Job
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.transaction.PlatformTransactionManager
+
+@Configuration
+open class TestJobConfig(
+    private val batch: BatchDsl,
+    private val transactionManager: PlatformTransactionManager,
+) {
+    @Bean
+    open fun testJob(
+        sampleTasklet: SampleTasklet,
+    ): Job = batch {
+        job("testJob") {
+            step("testStep") {
+                chunk<Int, String>(3, transactionManager) {
+                    reader(sampleTasklet.asItemStreamReader())
+                    processor(sampleTasklet.asItemProcessor())
+                    writer { chunk -> println(chunk.items) }
+                }
+            }
+        }
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.kt
new file mode 100644
index 00000000..e808d9a0
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.kt
@@ -0,0 +1,46 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor
+
+import org.junit.jupiter.api.Test
+import org.springframework.batch.core.BatchStatus
+import org.springframework.batch.core.Job
+import org.springframework.batch.core.JobParametersBuilder
+import org.springframework.batch.core.launch.JobLauncher
+import org.springframework.beans.factory.getBean
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+open class SampleApplicationTest {
+    @Test
+    fun run() {
+        val applicationContext = runApplication<SampleApplicationTest>()
+        val jobLauncher = applicationContext.getBean<JobLauncher>()
+        val job = applicationContext.getBean<Job>("testJob")
+
+        val jobParameters = JobParametersBuilder()
+            .addLong("totalCount", 20L)
+            .toJobParameters()
+        val jobExecution = jobLauncher.run(job, jobParameters)
+
+        assert(BatchStatus.COMPLETED == jobExecution.status)
+        println(jobExecution)
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.kt
new file mode 100644
index 00000000..1ad20bc1
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.kt
@@ -0,0 +1,52 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamIterableReaderProcessor
+import org.springframework.batch.core.configuration.annotation.StepScope
+import org.springframework.batch.item.ExecutionContext
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.stereotype.Component
+
+@Component
+@StepScope
+open class SampleTasklet(
+    @Value("#{jobParameters['totalCount']}") private var totalCount: Long,
+) : ItemStreamIterableReaderProcessor<Int, String> {
+    private var count = 0
+
+    override fun readIterable(executionContext: ExecutionContext): Iterable<Int> {
+        println("totalCount: $totalCount")
+        return Iterable {
+            object : Iterator<Int> {
+                override fun hasNext(): Boolean {
+                    return count < totalCount
+                }
+
+                override fun next(): Int {
+                    return count++
+                }
+            }
+        }
+    }
+
+    override fun process(item: Int): String? {
+        return "'$item'"
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.kt
new file mode 100644
index 00000000..1da5c164
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.kt
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor
+
+import com.navercorp.spring.batch.plus.kotlin.configuration.BatchDsl
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemProcessor
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemStreamReader
+import org.springframework.batch.core.Job
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.transaction.PlatformTransactionManager
+
+@Configuration
+open class TestJobConfig(
+    private val batch: BatchDsl,
+    private val transactionManager: PlatformTransactionManager,
+) {
+    @Bean
+    open fun testJob(
+        sampleTasklet: SampleTasklet,
+    ): Job = batch {
+        job("testJob") {
+            step("testStep") {
+                chunk<Int, String>(3, transactionManager) {
+                    reader(sampleTasklet.asItemStreamReader())
+                    processor(sampleTasklet.asItemProcessor())
+                    writer { chunk -> println(chunk.items) }
+                }
+            }
+        }
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.kt
new file mode 100644
index 00000000..cdecc7f8
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.kt
@@ -0,0 +1,46 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor
+
+import org.junit.jupiter.api.Test
+import org.springframework.batch.core.BatchStatus
+import org.springframework.batch.core.Job
+import org.springframework.batch.core.JobParametersBuilder
+import org.springframework.batch.core.launch.JobLauncher
+import org.springframework.beans.factory.getBean
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+open class SampleApplicationTest {
+    @Test
+    fun run() {
+        val applicationContext = runApplication<SampleApplicationTest>()
+        val jobLauncher = applicationContext.getBean<JobLauncher>()
+        val job = applicationContext.getBean<Job>("testJob")
+
+        val jobParameters = JobParametersBuilder()
+            .addLong("totalCount", 20L)
+            .toJobParameters()
+        val jobExecution = jobLauncher.run(job, jobParameters)
+
+        assert(BatchStatus.COMPLETED == jobExecution.status)
+        println(jobExecution)
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.kt
new file mode 100644
index 00000000..54900579
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.kt
@@ -0,0 +1,50 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamIteratorReaderProcessor
+import org.springframework.batch.core.configuration.annotation.StepScope
+import org.springframework.batch.item.ExecutionContext
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.stereotype.Component
+
+@Component
+@StepScope
+open class SampleTasklet(
+    @Value("#{jobParameters['totalCount']}") private var totalCount: Long,
+) : ItemStreamIteratorReaderProcessor<Int, String> {
+    private var count = 0
+
+    override fun readIterator(executionContext: ExecutionContext): Iterator<Int> {
+        println("totalCount: $totalCount")
+        return object : Iterator<Int> {
+            override fun hasNext(): Boolean {
+                return count < totalCount
+            }
+
+            override fun next(): Int {
+                return count++
+            }
+        }
+    }
+
+    override fun process(item: Int): String? {
+        return "'$item'"
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.kt
new file mode 100644
index 00000000..3ed24a0f
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.kt
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor
+
+import com.navercorp.spring.batch.plus.kotlin.configuration.BatchDsl
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemProcessor
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemStreamReader
+import org.springframework.batch.core.Job
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.transaction.PlatformTransactionManager
+
+@Configuration
+open class TestJobConfig(
+    private val batch: BatchDsl,
+    private val transactionManager: PlatformTransactionManager,
+) {
+    @Bean
+    open fun testJob(
+        sampleTasklet: SampleTasklet,
+    ): Job = batch {
+        job("testJob") {
+            step("testStep") {
+                chunk<Int, String>(3, transactionManager) {
+                    reader(sampleTasklet.asItemStreamReader())
+                    processor(sampleTasklet.asItemProcessor())
+                    writer { chunk -> println(chunk.items) }
+                }
+            }
+        }
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.kt
new file mode 100644
index 00000000..0f0261fb
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.kt
@@ -0,0 +1,46 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor
+
+import org.junit.jupiter.api.Test
+import org.springframework.batch.core.BatchStatus
+import org.springframework.batch.core.Job
+import org.springframework.batch.core.JobParametersBuilder
+import org.springframework.batch.core.launch.JobLauncher
+import org.springframework.beans.factory.getBean
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+open class SampleApplicationTest {
+    @Test
+    fun run() {
+        val applicationContext = runApplication<SampleApplicationTest>()
+        val jobLauncher = applicationContext.getBean<JobLauncher>()
+        val job = applicationContext.getBean<Job>("testJob")
+
+        val jobParameters = JobParametersBuilder()
+            .addLong("totalCount", 20L)
+            .toJobParameters()
+        val jobExecution = jobLauncher.run(job, jobParameters)
+
+        assert(BatchStatus.COMPLETED == jobExecution.status)
+        println(jobExecution)
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.kt
new file mode 100644
index 00000000..402f1156
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.kt
@@ -0,0 +1,44 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamSimpleReaderProcessor
+import org.springframework.batch.core.configuration.annotation.StepScope
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.stereotype.Component
+
+@Component
+@StepScope
+open class SampleTasklet(
+    @Value("#{jobParameters['totalCount']}") private var totalCount: Long,
+) : ItemStreamSimpleReaderProcessor<Int, String> {
+    private var count = 0
+
+    override fun read(): Int? {
+        return if (count < totalCount) {
+            count++
+        } else {
+            null
+        }
+    }
+
+    override fun process(item: Int): String? {
+        return "'$item'"
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.kt
new file mode 100644
index 00000000..64dc8b94
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.kt
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor
+
+import com.navercorp.spring.batch.plus.kotlin.configuration.BatchDsl
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemProcessor
+import com.navercorp.spring.batch.plus.kotlin.step.adapter.asItemStreamReader
+import org.springframework.batch.core.Job
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.transaction.PlatformTransactionManager
+
+@Configuration
+open class TestJobConfig(
+    private val batch: BatchDsl,
+    private val transactionManager: PlatformTransactionManager,
+) {
+    @Bean
+    open fun testJob(
+        sampleTasklet: SampleTasklet,
+    ): Job = batch {
+        job("testJob") {
+            step("testStep") {
+                chunk<Int, String>(3, transactionManager) {
+                    reader(sampleTasklet.asItemStreamReader())
+                    processor(sampleTasklet.asItemProcessor())
+                    writer { chunk -> println(chunk.items) }
+                }
+            }
+        }
+    }
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessorwriter/SampleApplicationTest.kt b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessorwriter/SampleApplicationTest.kt
index 947b554e..2fbbad97 100644
--- a/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessorwriter/SampleApplicationTest.kt
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-kotlin-sample/src/test/kotlin/com/navercorp/spring/batch/plus/sample/simple/readerprocessorwriter/SampleApplicationTest.kt
@@ -31,8 +31,7 @@ import org.springframework.boot.runApplication
 open class SampleApplicationTest {
     @Test
     fun run() {
-        val applicationContext =
-            runApplication<SampleApplicationTest>()
+        val applicationContext = runApplication<SampleApplicationTest>()
         val jobLauncher = applicationContext.getBean<JobLauncher>()
         val job = applicationContext.getBean<Job>("testJob")
 
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.java
new file mode 100644
index 00000000..d9eeba3d
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleApplicationTest.java
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.batch.core.BatchStatus;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class SampleApplicationTest {
+	@Test
+	void run() throws Exception {
+		ApplicationContext applicationContext = SpringApplication.run(SampleApplicationTest.class);
+		JobLauncher jobLauncher = applicationContext.getBean(JobLauncher.class);
+		Job job = applicationContext.getBean("testJob", Job.class);
+
+		JobParameters jobParameters = new JobParametersBuilder()
+			.addLong("totalCount", 20L)
+			.toJobParameters();
+		JobExecution jobExecution = jobLauncher.run(job, jobParameters);
+
+		assert BatchStatus.COMPLETED.equals(jobExecution.getStatus());
+		System.out.printf("%s%n", jobExecution);
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.java
new file mode 100644
index 00000000..abeb765b
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/SampleTasklet.java
@@ -0,0 +1,58 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor;
+
+import org.springframework.batch.core.configuration.annotation.StepScope;
+import org.springframework.batch.item.ExecutionContext;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.lang.NonNull;
+import org.springframework.stereotype.Component;
+
+import reactor.core.publisher.Flux;
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamFluxReaderProcessor;
+
+@Component
+@StepScope
+class SampleTasklet implements ItemStreamFluxReaderProcessor<Integer, String> {
+
+	@Value("#{jobParameters['totalCount']}")
+	private long totalCount;
+
+	private int count = 0;
+
+	@NonNull
+	@Override
+	public Flux<? extends Integer> readFlux(@NonNull ExecutionContext executionContext) {
+		System.out.println("totalCount: " + totalCount);
+		return Flux.generate(sink -> {
+			if (count < totalCount) {
+				sink.next(count);
+				++count;
+			} else {
+				sink.complete();
+			}
+		});
+	}
+
+	@Override
+	public String process(@NonNull Integer item) {
+		return "'" + item.toString() + "'";
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.java
new file mode 100644
index 00000000..3b1d6c1b
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/flux/readerprocessor/TestJobConfig.java
@@ -0,0 +1,52 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.flux.readerprocessor;
+
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemProcessor;
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemStreamReader;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.job.builder.JobBuilder;
+import org.springframework.batch.core.repository.JobRepository;
+import org.springframework.batch.core.step.builder.StepBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.PlatformTransactionManager;
+
+@Configuration
+public class TestJobConfig {
+
+	@Bean
+	public Job testJob(
+		SampleTasklet sampleTasklet,
+		JobRepository jobRepository,
+		PlatformTransactionManager transactionManager
+	) {
+		return new JobBuilder("testJob", jobRepository)
+			.start(
+				new StepBuilder("testStep", jobRepository)
+					.<Integer, String>chunk(3, transactionManager)
+					.reader(itemStreamReader(sampleTasklet))
+					.processor(itemProcessor(sampleTasklet))
+					.writer(chunk -> System.out.println(chunk.getItems()))
+					.build()
+			)
+			.build();
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.java
new file mode 100644
index 00000000..874cace3
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleApplicationTest.java
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.batch.core.BatchStatus;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class SampleApplicationTest {
+	@Test
+	void run() throws Exception {
+		ApplicationContext applicationContext = SpringApplication.run(SampleApplicationTest.class);
+		JobLauncher jobLauncher = applicationContext.getBean(JobLauncher.class);
+		Job job = applicationContext.getBean("testJob", Job.class);
+
+		JobParameters jobParameters = new JobParametersBuilder()
+			.addLong("totalCount", 20L)
+			.toJobParameters();
+		JobExecution jobExecution = jobLauncher.run(job, jobParameters);
+
+		assert BatchStatus.COMPLETED.equals(jobExecution.getStatus());
+		System.out.printf("%s%n", jobExecution);
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.java
new file mode 100644
index 00000000..53028024
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/SampleTasklet.java
@@ -0,0 +1,61 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor;
+
+import java.util.Iterator;
+
+import org.springframework.batch.core.configuration.annotation.StepScope;
+import org.springframework.batch.item.ExecutionContext;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.lang.NonNull;
+import org.springframework.stereotype.Component;
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamIterableReaderProcessor;
+
+@Component
+@StepScope
+class SampleTasklet implements ItemStreamIterableReaderProcessor<Integer, String> {
+
+	@Value("#{jobParameters['totalCount']}")
+	private long totalCount;
+
+	private int count = 0;
+
+	@NonNull
+	@Override
+	public Iterable<? extends Integer> readIterable(@NonNull ExecutionContext executionContext) {
+		System.out.println("totalCount: " + totalCount);
+		return () -> new Iterator<>() {
+			@Override
+			public boolean hasNext() {
+				return count < totalCount;
+			}
+
+			@Override
+			public Integer next() {
+				return count++;
+			}
+		};
+	}
+
+	@Override
+	public String process(@NonNull Integer item) {
+		return "'" + item.toString() + "'";
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.java
new file mode 100644
index 00000000..7ff6e342
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterable/readerprocessor/TestJobConfig.java
@@ -0,0 +1,52 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterable.readerprocessor;
+
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemProcessor;
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemStreamReader;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.job.builder.JobBuilder;
+import org.springframework.batch.core.repository.JobRepository;
+import org.springframework.batch.core.step.builder.StepBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.PlatformTransactionManager;
+
+@Configuration
+public class TestJobConfig {
+
+	@Bean
+	public Job testJob(
+		SampleTasklet sampleTasklet,
+		JobRepository jobRepository,
+		PlatformTransactionManager transactionManager
+	) {
+		return new JobBuilder("testJob", jobRepository)
+			.start(
+				new StepBuilder("testStep", jobRepository)
+					.<Integer, String>chunk(3, transactionManager)
+					.reader(itemStreamReader(sampleTasklet))
+					.processor(itemProcessor(sampleTasklet))
+					.writer(chunk -> System.out.println(chunk.getItems()))
+					.build()
+			)
+			.build();
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.java
new file mode 100644
index 00000000..7f7a57c2
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleApplicationTest.java
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.batch.core.BatchStatus;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class SampleApplicationTest {
+	@Test
+	void run() throws Exception {
+		ApplicationContext applicationContext = SpringApplication.run(SampleApplicationTest.class);
+		JobLauncher jobLauncher = applicationContext.getBean(JobLauncher.class);
+		Job job = applicationContext.getBean("testJob", Job.class);
+
+		JobParameters jobParameters = new JobParametersBuilder()
+			.addLong("totalCount", 20L)
+			.toJobParameters();
+		JobExecution jobExecution = jobLauncher.run(job, jobParameters);
+
+		assert BatchStatus.COMPLETED.equals(jobExecution.getStatus());
+		System.out.printf("%s%n", jobExecution);
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.java
new file mode 100644
index 00000000..db14fdbd
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/SampleTasklet.java
@@ -0,0 +1,61 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor;
+
+import java.util.Iterator;
+
+import org.springframework.batch.core.configuration.annotation.StepScope;
+import org.springframework.batch.item.ExecutionContext;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.lang.NonNull;
+import org.springframework.stereotype.Component;
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamIteratorReaderProcessor;
+
+@Component
+@StepScope
+class SampleTasklet implements ItemStreamIteratorReaderProcessor<Integer, String> {
+
+	@Value("#{jobParameters['totalCount']}")
+	private long totalCount;
+
+	private int count = 0;
+
+	@NonNull
+	@Override
+	public Iterator<? extends Integer> readIterator(@NonNull ExecutionContext executionContext) {
+		System.out.println("totalCount: " + totalCount);
+		return new Iterator<>() {
+			@Override
+			public boolean hasNext() {
+				return count < totalCount;
+			}
+
+			@Override
+			public Integer next() {
+				return count++;
+			}
+		};
+	}
+
+	@Override
+	public String process(@NonNull Integer item) {
+		return "'" + item.toString() + "'";
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.java
new file mode 100644
index 00000000..13aa896e
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/iterator/readerprocessor/TestJobConfig.java
@@ -0,0 +1,52 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.iterator.readerprocessor;
+
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemProcessor;
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemStreamReader;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.job.builder.JobBuilder;
+import org.springframework.batch.core.repository.JobRepository;
+import org.springframework.batch.core.step.builder.StepBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.PlatformTransactionManager;
+
+@Configuration
+public class TestJobConfig {
+
+	@Bean
+	public Job testJob(
+		SampleTasklet sampleTasklet,
+		JobRepository jobRepository,
+		PlatformTransactionManager transactionManager
+	) {
+		return new JobBuilder("testJob", jobRepository)
+			.start(
+				new StepBuilder("testStep", jobRepository)
+					.<Integer, String>chunk(3, transactionManager)
+					.reader(itemStreamReader(sampleTasklet))
+					.processor(itemProcessor(sampleTasklet))
+					.writer(chunk -> System.out.println(chunk.getItems()))
+					.build()
+			)
+			.build();
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.java
new file mode 100644
index 00000000..ce39cd1c
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleApplicationTest.java
@@ -0,0 +1,48 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.batch.core.BatchStatus;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class SampleApplicationTest {
+	@Test
+	void run() throws Exception {
+		ApplicationContext applicationContext = SpringApplication.run(SampleApplicationTest.class);
+		JobLauncher jobLauncher = applicationContext.getBean(JobLauncher.class);
+		Job job = applicationContext.getBean("testJob", Job.class);
+
+		JobParameters jobParameters = new JobParametersBuilder()
+			.addLong("totalCount", 20L)
+			.toJobParameters();
+		JobExecution jobExecution = jobLauncher.run(job, jobParameters);
+
+		assert BatchStatus.COMPLETED.equals(jobExecution.getStatus());
+		System.out.printf("%s%n", jobExecution);
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.java
new file mode 100644
index 00000000..c91c95e1
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/SampleTasklet.java
@@ -0,0 +1,50 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor;
+
+import org.springframework.batch.core.configuration.annotation.StepScope;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.lang.NonNull;
+import org.springframework.stereotype.Component;
+
+import com.navercorp.spring.batch.plus.step.adapter.ItemStreamSimpleReaderProcessor;
+
+@Component
+@StepScope
+class SampleTasklet implements ItemStreamSimpleReaderProcessor<Integer, String> {
+
+	@Value("#{jobParameters['totalCount']}")
+	private long totalCount;
+
+	private int count = 0;
+
+	@Override
+	public Integer read() {
+		if (count < totalCount) {
+			return count++;
+		} else {
+			return null;
+		}
+	}
+
+	@Override
+	public String process(@NonNull Integer item) {
+		return "'" + item.toString() + "'";
+	}
+}
diff --git a/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.java b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.java
new file mode 100644
index 00000000..716ad77b
--- /dev/null
+++ b/spring-batch-plus-sample/single-class-reader-processor-writer-sample/src/test/java/com/navercorp/spring/batch/plus/sample/simple/readerprocessor/TestJobConfig.java
@@ -0,0 +1,52 @@
+/*
+ * Spring Batch Plus
+ *
+ * Copyright 2022-present NAVER Corp.
+ *
+ * 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
+ *
+ *      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 com.navercorp.spring.batch.plus.sample.simple.readerprocessor;
+
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemProcessor;
+import static com.navercorp.spring.batch.plus.step.adapter.AdapterFactory.itemStreamReader;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.job.builder.JobBuilder;
+import org.springframework.batch.core.repository.JobRepository;
+import org.springframework.batch.core.step.builder.StepBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.PlatformTransactionManager;
+
+@Configuration
+public class TestJobConfig {
+
+	@Bean
+	public Job testJob(
+		SampleTasklet sampleTasklet,
+		JobRepository jobRepository,
+		PlatformTransactionManager transactionManager
+	) {
+		return new JobBuilder("testJob", jobRepository)
+			.start(
+				new StepBuilder("testStep", jobRepository)
+					.<Integer, String>chunk(3, transactionManager)
+					.reader(itemStreamReader(sampleTasklet))
+					.processor(itemProcessor(sampleTasklet))
+					.writer(chunk -> System.out.println(chunk.getItems()))
+					.build()
+			)
+			.build();
+	}
+}