Add unit tests for displaying complex types

presto-main/src/test/java/com/facebook/presto/type/ArrayTypeTest.java

@@ -0,0 +1,29 @@
+/*
+ * Licensed 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:https://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 com.facebook.presto.type;
+
+import org.testng.annotations.Test;
+
+import static com.facebook.presto.spi.type.BooleanType.BOOLEAN;
+import static org.testng.Assert.assertEquals;
+
+public class ArrayTypeTest
+{
+ @Test
+ public void testDisplayName()
+ {
+ ArrayType type = new ArrayType(BOOLEAN);
+ assertEquals(type.getDisplayName(), "array<boolean>");
+ }
+}

presto-main/src/test/java/com/facebook/presto/type/MapTypeTest.java

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+/*
+ * Licensed 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:https://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 com.facebook.presto.type;
+
+import org.testng.annotations.Test;
+
+import static com.facebook.presto.spi.type.BigintType.BIGINT;
+import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
+import static org.testng.Assert.assertEquals;
+
+public class MapTypeTest
+{
+ @Test
+ public void testMapDisplayName()
+ {
+ MapType mapType = new MapType(BIGINT, VARCHAR);
+ assertEquals(mapType.getDisplayName(), "map<bigint, varchar>");
+ }
+}

presto-main/src/test/java/com/facebook/presto/type/RowTypeTest.java

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+/*
+ * Licensed 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:https://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 com.facebook.presto.type;
+
+import com.facebook.presto.spi.type.Type;
+import org.testng.annotations.Test;
+
+import java.util.List;
+import java.util.Optional;
+
+import static com.facebook.presto.spi.type.BooleanType.BOOLEAN;
+import static com.facebook.presto.spi.type.DoubleType.DOUBLE;
+import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
+import static java.util.Arrays.asList;
+import static org.testng.Assert.assertEquals;
+
+public class RowTypeTest
+{
+ @Test
+ public void testRowDisplayName()
+ {
+ List<Type> types = asList(BOOLEAN, DOUBLE, new ArrayType(VARCHAR), new MapType(BOOLEAN, DOUBLE));
+ Optional<List<String>> names = Optional.of(asList("bool_col", "double_col", "array_col", "map_col"));
+ RowType row = new RowType(types, names);
+ assertEquals(row.getDisplayName(), "row(bool_col boolean, double_col double, array_col array<varchar>, map_col map<boolean, double>)");
+ }
+
+ @Test
+ public void testRowDisplayNoColumnNames()
+ {
+ List<Type> types = asList(BOOLEAN, DOUBLE, new ArrayType(VARCHAR), new MapType(BOOLEAN, DOUBLE));
+ RowType row = new RowType(types, Optional.empty());
+ assertEquals(row.getDisplayName(), "row(boolean, double, array<varchar>, map<boolean, double>)");
+ }
+}