| /* |
| * 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.asterix.om.typecomputer; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import java.lang.reflect.Modifier; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.asterix.om.typecomputer.base.IResultTypeComputer; |
| import org.apache.asterix.om.types.ATypeTag; |
| import org.apache.asterix.om.types.AUnionType; |
| import org.apache.asterix.om.types.BuiltinType; |
| import org.apache.asterix.om.types.IAType; |
| import org.apache.commons.lang3.mutable.Mutable; |
| import org.apache.commons.lang3.mutable.MutableObject; |
| import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression; |
| import org.apache.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression; |
| import org.apache.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment; |
| import org.apache.hyracks.algebricks.core.algebra.metadata.IMetadataProvider; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.reflections.Reflections; |
| import org.reflections.scanners.SubTypesScanner; |
| |
| // Tests if all type computers can handle input type ANY properly. |
| public class TypeComputerTest { |
| |
| @Test |
| public void test() throws Exception { |
| // Several exceptional type computers. |
| Set<String> exceptionalTypeComputers = new HashSet<>(); |
| exceptionalTypeComputers.add("InjectFailureTypeComputer"); |
| exceptionalTypeComputers.add("RecordAddFieldsTypeComputer"); |
| exceptionalTypeComputers.add("OpenRecordConstructorResultType"); |
| exceptionalTypeComputers.add("RecordRemoveFieldsTypeComputer"); |
| exceptionalTypeComputers.add("ClosedRecordConstructorResultType"); |
| exceptionalTypeComputers.add("LocalAvgTypeComputer"); |
| exceptionalTypeComputers.add("BooleanOnlyTypeComputer"); |
| exceptionalTypeComputers.add("AMissingTypeComputer"); |
| exceptionalTypeComputers.add("NullableDoubleTypeComputer"); |
| exceptionalTypeComputers.add("RecordMergeTypeComputer"); |
| |
| // Tests all usual type computers. |
| Reflections reflections = new Reflections("org.apache.asterix.om.typecomputer", new SubTypesScanner(false)); |
| Set<Class<? extends IResultTypeComputer>> classes = reflections.getSubTypesOf(IResultTypeComputer.class); |
| for (Class<? extends IResultTypeComputer> c : classes) { |
| if (exceptionalTypeComputers.contains(c.getSimpleName()) || Modifier.isAbstract(c.getModifiers())) { |
| continue; |
| } |
| System.out.println("Test type computer: " + c.getName()); |
| Assert.assertTrue(testTypeComputer(c)); |
| } |
| } |
| |
| private boolean testTypeComputer(Class<? extends IResultTypeComputer> c) throws Exception { |
| // Mocks the type environment. |
| IVariableTypeEnvironment mockTypeEnv = mock(IVariableTypeEnvironment.class); |
| // Mocks the metadata provider. |
| IMetadataProvider<?, ?> mockMetadataProvider = mock(IMetadataProvider.class); |
| |
| // Mocks function expression. |
| AbstractFunctionCallExpression mockExpr = mock(AbstractFunctionCallExpression.class); |
| |
| // A function at most has six argument. |
| List<Mutable<ILogicalExpression>> argRefs = new ArrayList<>(); |
| for (int argIndex = 0; argIndex < 6; ++argIndex) { |
| ILogicalExpression mockArg = mock(ILogicalExpression.class); |
| argRefs.add(new MutableObject<>(mockArg)); |
| when(mockTypeEnv.getType(mockArg)).thenReturn(BuiltinType.ANY); |
| } |
| |
| // Sets up arguments for the mocked expression. |
| when(mockExpr.getArguments()).thenReturn(argRefs); |
| |
| // Sets up required/actual types of the mocked expression. |
| Object[] opaqueParameters = new Object[2]; |
| opaqueParameters[0] = BuiltinType.ANY; |
| opaqueParameters[1] = BuiltinType.ANY; |
| when(mockExpr.getOpaqueParameters()).thenReturn(opaqueParameters); |
| |
| // Tests the return type. It should be either ANY or NULLABLE/MISSABLE. |
| IResultTypeComputer instance = (IResultTypeComputer) c.getField("INSTANCE").get(null); |
| IAType resultType = instance.computeType(mockExpr, mockTypeEnv, mockMetadataProvider); |
| ATypeTag typeTag = resultType.getTypeTag(); |
| if (typeTag == ATypeTag.ANY) { |
| return true; |
| } |
| if (typeTag == ATypeTag.UNION) { |
| AUnionType unionType = (AUnionType) resultType; |
| return unionType.isMissableType() && unionType.isNullableType(); |
| } |
| return false; |
| } |
| } |