Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/13990#discussion_r69777386 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala --- @@ -404,4 +404,26 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSQLContext { Seq(Row(true), Row(true)) ) } + + test("str_to_map function") { + val df1 = Seq( + ("a=1,b=2", "y"), + ("a=1,b=2,c=3", "y") + ).toDF("a", "b") + + checkAnswer( + df1.selectExpr("str_to_map(a,',','=')"), + Seq( + Row(Map("a" -> "1", "b" -> "2")), + Row(Map("a" -> "1", "b" -> "2", "c" -> "3")) + ) + ) + + val df2 = Seq(("a:1,b:2,c:3", "y")).toDF("a", "b") + + checkAnswer( + df2.selectExpr("str_to_map(a)"), + Seq(Row(Map("a" -> "1", "b" -> "2", "c" -> "3"))) + ) + } --- End diff -- Could you move this into `StringFunctionsSuite`? That is the same with `DataFrameFunctionsSuite`, but has more string-related tests.
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