Question

我正在创建Spark 2.0.1项目，并希望在我的SBT项目中使用Spark test-jar。

build.sbt：

scalaVersion := "2.11.0"
val sparkVersion = "2.0.1"

libraryDependencies ++= Seq(
    "org.apache.spark" %% "spark-core" % sparkVersion % "compile",
    "org.apache.spark" %% "spark-sql" % sparkVersion % "compile",
    "org.scalatest" %% "scalatest" % "2.2.6" % "test",
    "org.apache.spark" %% "spark-core" % sparkVersion % "test" classifier "tests",
    "org.apache.spark" %% "spark-sql" % sparkVersion % "test" classifier "tests",
    "org.apache.spark" %% "spark-catalyst" % sparkVersion % "test" classifier "tests"
)

我的测试代码：

import org.apache.spark.sql.DataFrame
import org.apache.spark.sql.functions._
import org.apache.spark.sql.test.SharedSQLContext

class LoaderTest extends org.apache.spark.sql.QueryTest with SharedSQLContext {
  import testImplicits._

    test("function current_date") {
      val df1 = Seq((1, 2), (3, 1)).toDF("a", "b")
      // Rest of test code and assertion using checkAnswer method
    }
}

但是当我尝试使用以下方式运行测试时：

sbt clean test

出现以下错误：

[info] Compiling 1 Scala source to /tstprg/test/target/scala-2.11/test-classes...
[error] bad symbolic reference to org.apache.spark.sql.catalyst.expressions.PredicateHelper encountered in class file 'PlanTest.class'.
[error] Cannot access type PredicateHelper in package org.apache.spark.sql.catalyst.expressions. The current classpath may be
[error] missing a definition for org.apache.spark.sql.catalyst.expressions.PredicateHelper, or PlanTest.class may have been compiled against a version that's
[error] incompatible with the one found on the current classpath.
[error] /tstprg/test/src/test/scala/facts/LoaderTest.scala:7: illegal inheritance;
[error]  self-type facts.LoaderTest does not conform to org.apache.spark.sql.QueryTest's selftype org.apache.spark.sql.QueryTest
[error]     class LoaderTest extends org.apache.spark.sql.QueryTest with SharedSQLContext {
[error]                                                   ^
[error] /tstprg/test/src/test/scala/facts/LoaderTest.scala:7: illegal inheritance;
[error]  self-type facts.LoaderTest does not conform to org.apache.spark.sql.test.SharedSQLContext's selftype org.apache.spark.sql.test.SharedSQLContext
[error]     class LoaderTest extends org.apache.spark.sql.QueryTest with SharedSQLContext {
[error]                                                                  ^
[error] bad symbolic reference to org.apache.spark.sql.Encoder encountered in class file 'SQLImplicits.class'.
[error] Cannot access type Encoder in package org.apache.spark.sql. The current classpath may be
[error] missing a definition for org.apache.spark.sql.Encoder, or SQLImplicits.class may have been compiled against a version that's
[error] incompatible with the one found on the current classpath.
[error] /tstprg/test/src/test/scala/facts/LoaderTest.scala:11: bad symbolic reference to org.apache.spark.sql.catalyst.plans.logical encountered in class file 'SQLTestUtils.class'.
[error] Cannot access term logical in package org.apache.spark.sql.catalyst.plans. The current classpath may be
[error] missing a definition for org.apache.spark.sql.catalyst.plans.logical, or SQLTestUtils.class may have been compiled against a version that's
[error] incompatible with the one found on the current classpath.
[error]           val df1 = Seq((1, 2), (3, 1)).toDF("a", "b")
[error]                                         ^
[error] 5 errors found
[error] (test:compileIncremental) Compilation failed

任何试过使用测试罐的火花进行单元测试的人都可以使用SBT来帮助我找不到的东西吗？

注意：当我运行IntelliJ IDE时，此测试正常。

Answer 1

尝试使用如下所述的范围


version := "0.1"

scalaVersion := "2.11.11"
val sparkVersion = "2.3.1"

libraryDependencies ++= Seq(
  "org.apache.spark" %% "spark-core" % sparkVersion % Provided,
  "org.apache.spark" %% "spark-core" % sparkVersion % Test classifier "tests",
  "org.apache.spark" %% "spark-core" % sparkVersion % Test classifier "test-sources",
  "org.apache.spark" %% "spark-sql" % sparkVersion % Provided,
  "org.apache.spark" %% "spark-sql" % sparkVersion % Test classifier "tests",
  "org.apache.spark" %% "spark-sql" % sparkVersion % Test classifier "test-sources",
  "org.apache.spark" %% "spark-catalyst" % sparkVersion % Test classifier "tests",
  "org.apache.spark" %% "spark-catalyst" % sparkVersion % Test classifier "test-sources",
  "com.typesafe.scala-logging" %% "scala-logging" % "3.9.0",
  "org.scalatest" %% "scalatest" % "3.0.4" % "test",
  "org.typelevel" %% "cats-core" % "1.1.0",
  "org.typelevel" %% "cats-effect" % "1.0.0-RC2",
  "org.apache.spark" %% "spark-streaming" % sparkVersion % Provided,
  "org.apache.spark" %% "spark-sql-kafka-0-10" % sparkVersion % Provided exclude ("net.jpountz.lz4", "lz4"),
  "com.pusher" % "pusher-java-client" % "1.8.0") ```

Answer 2

尝试更改标记为测试的依赖项的范围，如下所示

scalaVersion := "2.11.0"
val sparkVersion = "2.0.1"

libraryDependencies ++= Seq(
    "org.apache.spark" %% "spark-core" % sparkVersion,
    "org.apache.spark" %% "spark-sql" % sparkVersion,
    "org.scalatest" %% "scalatest" % "2.2.6",
    "org.apache.spark" %% "spark-core" % sparkVersion ,
    "org.apache.spark" %% "spark-sql" % sparkVersion,
    "org.apache.spark" %% "spark-catalyst" % sparkVersion
)

或添加＆＃34;编译＆＃34;。

如何在SBT中使用Test Jars作为火花

2 个答案: