Github user liancheng commented on a diff in the pull request: https://github.com/apache/spark/pull/2501#discussion_r18090525 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala --- @@ -20,14 +20,32 @@ package org.apache.spark.sql import org.apache.spark.sql.TestData._ import org.apache.spark.sql.columnar.{InMemoryRelation, InMemoryColumnarTableScan} import org.apache.spark.sql.test.TestSQLContext -import org.apache.spark.sql.test.TestSQLContext._ case class BigData(s: String) class CachedTableSuite extends QueryTest { + import TestSQLContext._ TestData // Load test tables. - test("too big for memory") { + /** + * Throws a test failed exception when the number of cached tables differs from the expected + * number. + */ + def assertCached(query: SchemaRDD, numCachedTables: Int = 1): Unit = { + val planWithCaching = query.queryExecution.withCachedData + val cachedData = planWithCaching collect { + case cached: InMemoryRelation => cached + } + + if (cachedData.size != numCachedTables) { + fail( + s"Expected query to contain $numCachedTables, but it actually had ${cachedData.size}\n" + + planWithCaching) + } + } + + // TODO: Reenable. + ignore("too big for memory") { --- End diff -- Verified locally, there's nothing wrong with this test case, should reenable. I guess you disabled this to accelerate local testing?
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