sunjincheng121 commented on a change in pull request #8057:
[FLINK-12028][table] Add `addColumns`,`renameColumns`, `dropColumns` …
URL: https://github.com/apache/flink/pull/8057#discussion_r270357208
##########
File path:
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/api/batch/table/validation/CalcValidationTest.scala
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@@ -128,4 +128,96 @@ class CalcValidationTest extends TableTestBase {
table.select('a.flatten(), 'a.flatten())
}
+
+ @Test
+ def testAddColumns(): Unit = {
+ val util = batchTestUtil()
+ val tab = util.addTable[(Int, Long, String)]("Table3",'a, 'b, 'c)
+
+ // Test aggregates
+ try {
+ tab.addColumns('a.sum)
+ fail("TableException expected")
+ } catch {
+ case _: TableException => //ignore
+ }
+
+ // Test replace the existing column, but do not with the alias.
+ try {
+ tab.addColumns(true, concat('c, "Sunny"))
+ fail("TableException expected")
+ } catch {
+ case _: TableException => //ignore
+ }
+
+ }
+
+ @Test
+ def testRenameColumns(): Unit = {
+ val util = batchTestUtil()
+ val tab = util.addTable[(Int, Long, String)]("Table3",'a, 'b, 'c)
+
+ // Test aggregates
+ try {
Review comment:
I find that some of the test case using `expected=Exception` and some of the
test case using `try/cach`, so if test multi-case I like using `try/catch`, but
I am fine if you want to change it into `expected=Exception`. Do you also
prefer using `expected=Exception`?
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