diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/plans/JoinTypesTest.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/plans/JoinTypesTest.scala
new file mode 100644
index 0000000000000..d9474fc9400b4
--- /dev/null
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/plans/JoinTypesTest.scala
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package org.apache.spark.sql.catalyst.plans
+
+import org.apache.spark.SparkFunSuite
+
+class JoinTypesTest extends SparkFunSuite {
+
+  test("construct an Inner type") {
+    assert(JoinType.apply("inner") === Inner)
+  }
+
+  test("construct a FullOuter type") {
+    assert(JoinType.apply("fullouter") === FullOuter)
+    assert(JoinType.apply("full_outer") === FullOuter)
+    assert(JoinType.apply("outer") === FullOuter)
+    assert(JoinType.apply("full") === FullOuter)
+  }
+
+  test("construct a LeftOuter type") {
+    assert(JoinType.apply("leftouter") === LeftOuter)
+    assert(JoinType.apply("left_outer") === LeftOuter)
+    assert(JoinType.apply("left") === LeftOuter)
+  }
+
+  test("construct a RightOuter type") {
+    assert(JoinType.apply("rightouter") === RightOuter)
+    assert(JoinType.apply("right_outer") === RightOuter)
+    assert(JoinType.apply("right") === RightOuter)
+  }
+
+  test("construct a LeftSemi type") {
+    assert(JoinType.apply("leftsemi") === LeftSemi)
+    assert(JoinType.apply("left_semi") === LeftSemi)
+  }
+
+  test("construct a LeftAnti type") {
+    assert(JoinType.apply("leftanti") === LeftAnti)
+    assert(JoinType.apply("left_anti") === LeftAnti)
+  }
+
+  test("construct a Cross type") {
+    assert(JoinType.apply("cross") === Cross)
+  }
+
+}