remove mockito version

Author: mengxr

mllib/pom.xml

@@ -103,10 +103,9 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-all</artifactId>
-      <version>1.9.0</version>
       <scope>test</scope>
-      </dependency>
-      <dependency>
+    </dependency>
+    <dependency>
       <groupId>org.apache.spark</groupId>
       <artifactId>spark-streaming_${scala.binary.version}</artifactId>
       <version>${project.version}</version>

mllib/src/test/scala/org/apache/spark/ml/PipelineSuite.scala

@@ -55,6 +55,7 @@ class PipelineSuite extends FunSuite {
       .setStages(Array(estimator0, transformer1, estimator2, transformer3))
     val pipelineModel = pipeline.fit(dataset0)
 
+    assert(pipelineModel.transformers.size === 4)
     assert(pipelineModel.transformers(0).eq(model0))
     assert(pipelineModel.transformers(1).eq(transformer1))
     assert(pipelineModel.transformers(2).eq(model2))