twalthr commented on code in PR #20519:
URL: https://github.com/apache/flink/pull/20519#discussion_r941264942
##########
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/expressions/ScalarFunctionsTest.scala:
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@@ -980,6 +980,61 @@ class ScalarFunctionsTest extends ScalarTypesTestBase {
testSqlApi("regexp('100-200', CAST(null as VARCHAR))", "NULL")
}
+ @Test
+ def testConv(): Unit = {
+ testAllApis(
Review Comment:
Use the new `BuiltInFunctionTestBase`. It is very powerful as it tests input
and output types as well and can be executed in parallel.
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