dtenedor commented on code in PR #36365:
URL: https://github.com/apache/spark/pull/36365#discussion_r861217041
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala:
##########
@@ -1108,6 +1125,238 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
}
}
+ test("ToCharacter: positive tests") {
+ // Test '0' and '9'
+ Seq(
+ (Decimal(454), "9999") -> " 454",
+ (Decimal(454), "99999") -> " 454",
+ (Decimal(4), "0") -> "4",
+ (Decimal(45), "00") -> "45",
+ (Decimal(454), "000") -> "454",
+ (Decimal(454), "0000") -> "0454",
+ (Decimal(454), "00000") -> "00454"
+ ).foreach { case ((decimal, format), expected) =>
+ var expr: Expression = ToCharacter(Literal(decimal), Literal(format))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+
+ expr = TryToCharacter(Literal(decimal), Literal(format))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+ }
+
+ // Test '.' and 'D'
+ Seq(
+ (Decimal(0.4542), ".00000") -> ".4542 ",
+ (Decimal(454.2), "000.0") -> "454.2",
+ (Decimal(454), "000.0") -> "454 ",
+ (Decimal(454.2), "000.00") -> "454.2 ",
+ (Decimal(454), "000.00") -> "454 ",
+ (Decimal(0.4542), ".0000") -> ".4542",
+ (Decimal(4542), "0000.") -> "4542 "
+ ).foreach { case ((decimal, format), expected) =>
+ val format2 = format.replace('.', 'D')
+ var expr: Expression = ToCharacter(Literal(decimal), Literal(format))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+
+ expr = ToCharacter(Literal(decimal), Literal(format2))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+
+ expr = TryToCharacter(Literal(decimal), Literal(format))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+
+ expr = TryToCharacter(Literal(decimal), Literal(format2))
+ assert(expr.checkInputDataTypes() == TypeCheckResult.TypeCheckSuccess)
+ checkEvaluation(expr, expected)
+ }
+
+ Seq(
+ (Decimal(454.2), "0000.00") -> "0454.2 ",
+ (Decimal(454), "0000.00") -> "0454 ",
+ (Decimal(4542), "00000.") -> "04542 ",
+ (Decimal(454.2), "9999.99") -> " 454.2 ",
+ (Decimal(454), "9999.99") -> " 454 ",
+ (Decimal(4542), "99999.") -> " 4542 "
Review Comment:
There are no digits (0/9) after the decimal point.
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