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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
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#    http://www.apache.org/licenses/LICENSE-2.0
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- case: featureMethodChaining
  main: |
    from pyspark.ml.feature import NGram

    reveal_type(NGram().setInputCol("foo").setOutputCol("bar"))

  out: |
    main:3: note: Revealed type is "pyspark.ml.feature.NGram"


- case: stringIndexerOverloads
  main: |
    from pyspark.ml.feature import StringIndexer

    # No arguments is OK
    StringIndexer()

    StringIndexer(inputCol="foo")
    StringIndexer(outputCol="bar")
    StringIndexer(inputCol="foo", outputCol="bar")

    StringIndexer(inputCols=["foo"])
    StringIndexer(outputCols=["bar"])
    StringIndexer(inputCols=["foo"], outputCols=["bar"])

    StringIndexer(inputCol="foo", outputCols=["bar"])
    StringIndexer(inputCols=["foo"], outputCol="bar")

  out: |
    main:14: error: No overload variant of "StringIndexer" matches argument types "str", "List[str]"  [call-overload]
    main:14: note: Possible overload variants:
    main:14: note:     def StringIndexer(self, *, inputCol: Optional[str] = ..., outputCol: Optional[str] = ..., handleInvalid: str = ..., stringOrderType: str = ...) -> StringIndexer
    main:14: note:     def StringIndexer(self, *, inputCols: Optional[List[str]] = ..., outputCols: Optional[List[str]] = ..., handleInvalid: str = ..., stringOrderType: str = ...) -> StringIndexer
    main:15: error: No overload variant of "StringIndexer" matches argument types "List[str]", "str"  [call-overload]
    main:15: note: Possible overload variants:
    main:15: note:     def StringIndexer(self, *, inputCol: Optional[str] = ..., outputCol: Optional[str] = ..., handleInvalid: str = ..., stringOrderType: str = ...) -> StringIndexer
    main:15: note:     def StringIndexer(self, *, inputCols: Optional[List[str]] = ..., outputCols: Optional[List[str]] = ..., handleInvalid: str = ..., stringOrderType: str = ...) -> StringIndexer