hanyuzheng7 commented on code in PR #24365:
URL: https://github.com/apache/flink/pull/24365#discussion_r1603638142
##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/functions/CollectionFunctionsITCase.java:
##########
@@ -1721,4 +1722,83 @@ private Stream<TestSetSpec> arrayExceptTestCases() {
"Invalid input arguments. Expected signatures
are:\n"
+ "ARRAY_EXCEPT(<COMMON>, <COMMON>)"));
}
+
+ private Stream<TestSetSpec> splitTestCases() {
+ return Stream.of(
+ TestSetSpec.forFunction(BuiltInFunctionDefinitions.SPLIT)
+ .onFieldsWithData(
+ "123,123,23",
+ null,
+ ",123,123",
+ ",123,123,",
+ 123,
+ "12345",
+ ",123,,,123,")
+ .andDataTypes(
+ DataTypes.STRING().notNull(),
+ DataTypes.STRING(),
+ DataTypes.STRING().notNull(),
+ DataTypes.STRING().notNull(),
+ DataTypes.INT().notNull(),
+ DataTypes.STRING().notNull(),
+ DataTypes.STRING().notNull())
+ .testResult(
+ $("f0").split(","),
+ "SPLIT(f0, ',')",
+ new String[] {"123", "123", "23"},
+ DataTypes.ARRAY(DataTypes.STRING()).notNull())
+ .testResult(
+ $("f0").split(null),
+ "SPLIT(f0, NULL)",
+ null,
+ DataTypes.ARRAY(DataTypes.STRING()))
+ .testResult(
+ $("f0").split(""),
+ "SPLIT(f0, '')",
+ new String[] {"123,123,23"},
Review Comment:
return input string
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