yanlin-Lynn commented on a change in pull request #1301: [CALCITE-3175]
AssertionError during serializing RexLiteral with Enum type.
URL: https://github.com/apache/calcite/pull/1301#discussion_r306606140
##########
File path: core/src/test/java/org/apache/calcite/plan/RelWriterTest.java
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@@ -59,7 +63,7 @@
/**
* Unit test for {@link org.apache.calcite.rel.externalize.RelJson}.
*/
-public class RelWriterTest {
+public class RelWriterTest extends SqlToRelTestBase {
public static final String XX = "{\n"
Review comment:
Make this class extend SqlToRelTestBase to reuse the created Tester
instance. The constructor of TesterImpl is protected, cannot just create an
instance of TesterImpl without extending SqlToRelTestBase.
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