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-rw-r--r--sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/TreeNodeSuite.scala12
1 files changed, 6 insertions, 6 deletions
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/TreeNodeSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/TreeNodeSuite.scala
index 6a188e7e55..6246380dbe 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/TreeNodeSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/TreeNodeSuite.scala
@@ -82,8 +82,8 @@ class TreeNodeSuite extends SparkFunSuite {
val expected = Seq("+", "1", "*", "2", "-", "3", "4")
val expression = Add(Literal(1), Multiply(Literal(2), Subtract(Literal(3), Literal(4))))
expression transformDown {
- case b: BinaryOperator => actual.append(b.symbol); b
- case l: Literal => actual.append(l.toString); l
+ case b: BinaryOperator => actual += b.symbol; b
+ case l: Literal => actual += l.toString; l
}
assert(expected === actual)
@@ -94,8 +94,8 @@ class TreeNodeSuite extends SparkFunSuite {
val expected = Seq("1", "2", "3", "4", "-", "*", "+")
val expression = Add(Literal(1), Multiply(Literal(2), Subtract(Literal(3), Literal(4))))
expression transformUp {
- case b: BinaryOperator => actual.append(b.symbol); b
- case l: Literal => actual.append(l.toString); l
+ case b: BinaryOperator => actual += b.symbol; b
+ case l: Literal => actual += l.toString; l
}
assert(expected === actual)
@@ -134,8 +134,8 @@ class TreeNodeSuite extends SparkFunSuite {
val expected = Seq("1", "2", "3", "4", "-", "*", "+")
val expression = Add(Literal(1), Multiply(Literal(2), Subtract(Literal(3), Literal(4))))
expression foreachUp {
- case b: BinaryOperator => actual.append(b.symbol);
- case l: Literal => actual.append(l.toString);
+ case b: BinaryOperator => actual += b.symbol;
+ case l: Literal => actual += l.toString;
}
assert(expected === actual)