uros-db commented on code in PR #46041:
URL: https://github.com/apache/spark/pull/46041#discussion_r1565545434
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sql/core/src/test/scala/org/apache/spark/sql/CollationStringExpressionsSuite.scala:
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@@ -163,6 +163,48 @@ class CollationStringExpressionsSuite
})
}
+ test("Support Lpad string expressions with collation") {
+ // Supported collations
+ case class PadTestCase[R](s: String, len: Int, pad: String, c: String,
result: R)
+ val testCases = Seq(
+ PadTestCase("", 5, " ", "UTF8_BINARY", " "),
+ PadTestCase("abc", 5, " ", "UNICODE", " abc"),
+ PadTestCase("abc", 5, "XY", "UTF8_BINARY_LCASE", "XYabc"),
+ PadTestCase("abc", 5, "123", "UNICODE_CI", "12abc"),
+ PadTestCase("abc", 2, " ", "UTF8_BINARY", "ab"),
+ PadTestCase("abc", 2, "XY", "UNICODE", "ab"),
+ PadTestCase("abc", 2, "123", "UTF8_BINARY_LCASE", "ab"),
+ PadTestCase("abc", 2, "123", "UNICODE_CI", "ab")
+ )
+ testCases.foreach(t => {
+ val query = s"SELECT lpad(collate('${t.s}', '${t.c}'), ${t.len},
'${t.pad}')"
+ // Result & data type
+ checkAnswer(sql(query), Row(t.result))
+ assert(sql(query).schema.fields.head.dataType.sameType(StringType(t.c)))
+ })
+ }
+
+ test("Support Rpad string expressions with collation") {
Review Comment:
```suggestion
test("Support StringRPad string expressions with collation") {
```
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