Test: Add clickhouse-core-it moudule (ClickHouse#260)

build.gradle

@@ -170,6 +170,25 @@ project(':clickhouse-core') {
     }
 }
 
+project(":clickhouse-core-it") {
+    dependencies {
+        implementation "org.scala-lang:scala-library:$scala_version" // for scala plugin detect scala binary version
+
+        testImplementation(testFixtures(project(":clickhouse-core")))
+
+        testImplementation("com.clickhouse:clickhouse-jdbc:$clickhouse_jdbc_version:all") { transitive = false }
+        testImplementation "org.slf4j:slf4j-log4j12:$slf4j_version"
+    }
+
+    test {
+        classpath += files("${project(':clickhouse-core').projectDir}/src/testFixtures/conf")
+    }
+
+    slowTest {
+        classpath += files("${project(':clickhouse-core').projectDir}/src/testFixtures/conf")
+    }
+}
+
 boolean isVersionFileExists() {
     return file("version.txt").exists()
 }

clickhouse-core-it/src/test/resources/log4j.properties

@@ -0,0 +1,24 @@
+#
+# 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. See accompanying LICENSE file.
+#
+
+log4j.rootLogger=INFO, console
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.target=System.out
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{HH:mm:ss.SSS} %p %c: %m%n
+
+log4j.logger.org.apache.hadoop.util.Shell=ERROR
+log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR
+log4j.logger.xenon.clickhouse=DEBUG

clickhouse-core-it/src/test/scala/xenon/clickhouse/UtilsClickHouseSuite.scala

@@ -0,0 +1,36 @@
+/*
+ * 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 xenon.clickhouse
+
+import xenon.clickhouse.base.ClickHouseSingleMixIn
+
+import java.time.{LocalDateTime, ZoneId}
+
+class UtilsClickHouseSuite extends ClickHouseSingleMixIn with Logging {
+
+  test("parse date with nano seconds") {
+    withNodeClient() { client =>
+      val tz = ZoneId.systemDefault()
+      val sql = s"SELECT toDateTime64('2023-03-29 15:25:25.977654', 3, '$tz')"
+      val output = client.syncQueryAndCheckOutputJSONCompactEachRowWithNamesAndTypes(sql)
+      assert(output.rows === 1L)
+      val row = output.records.head
+      assert(row.length === 1L)
+      val actual = LocalDateTime.parse(row.head.asText, Utils.dateTimeFmt)
+      val expected = LocalDateTime.of(2023, 3, 29, 15, 25, 25, 977000000)
+      assert(actual === expected)
+    }
+  }
+}

clickhouse-core/src/testFixtures/scala/xenon/clickhouse/base/ClickHouseSingleMixIn.scala

@@ -14,12 +14,16 @@
 
 package xenon.clickhouse.base
 
+import com.clickhouse.client.ClickHouseProtocol
+import com.clickhouse.client.ClickHouseProtocol._
 import com.clickhouse.data.ClickHouseVersion
 import com.dimafeng.testcontainers.{ForAllTestContainer, JdbcDatabaseContainer, SingleContainer}
 import org.scalatest.funsuite.AnyFunSuite
 import org.testcontainers.containers.ClickHouseContainer
 import org.testcontainers.utility.{DockerImageName, MountableFile}
 import xenon.clickhouse.Utils
+import xenon.clickhouse.client.NodeClient
+import xenon.clickhouse.spec.NodeSpec
 
 import java.nio.file.{Path, Paths}
 
@@ -73,4 +77,11 @@ trait ClickHouseSingleMixIn extends AnyFunSuite with ForAllTestContainer {
   def clickhouseHttpPort: Int = container.mappedPort(CLICKHOUSE_HTTP_PORT)
   def clickhouseTcpPort:  Int = container.mappedPort(CLICKHOUSE_TPC_PORT)
   // format: on
+
+  def withNodeClient(protocol: ClickHouseProtocol = HTTP)(block: NodeClient => Unit): Unit =
+    Utils.tryWithResource {
+      NodeClient(NodeSpec(clickhouseHost, Some(clickhouseHttpPort), Some(clickhouseTcpPort), protocol))
+    } {
+      client => block(client)
+    }
 }

settings.gradle

@@ -15,6 +15,7 @@
 rootProject.name = 'spark-clickhouse-connector'
 
 include ":clickhouse-core"
+include ":clickhouse-core-it"
 
 List<String> knownScalaBinaryVersions = System.getProperty("known_scala_binary_versions").split(",")
 String scala_binary_version = System.getProperty("scala_binary_version")