| /* |
| * 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.calcite.avatica; |
| |
| import org.junit.Test; |
| import org.junit.internal.Throwables; |
| import org.mockito.Answers; |
| import org.mockito.Mockito; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.sql.SQLException; |
| import java.sql.SQLFeatureNotSupportedException; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.function.Function; |
| import java.util.function.Predicate; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import static org.hamcrest.CoreMatchers.endsWith; |
| import static org.hamcrest.CoreMatchers.instanceOf; |
| import static org.hamcrest.CoreMatchers.is; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Base class for tests checking close behavior |
| * @param <T> the JDBC interface to test |
| */ |
| public abstract class AvaticaClosedTestBase<T extends AutoCloseable> { |
| |
| /** |
| * A fake test driver for test. |
| */ |
| protected static final class TestDriver extends UnregisteredDriver { |
| |
| @Override protected DriverVersion createDriverVersion() { |
| return new DriverVersion("test", "test 0.0.0", "test", "test 0.0.0", false, 0, 0, 0, 0); |
| } |
| |
| @Override protected String getConnectStringPrefix() { |
| return "jdbc:test"; |
| } |
| |
| @Override public Meta createMeta(AvaticaConnection connection) { |
| return Mockito.mock(Meta.class, Answers.RETURNS_DEEP_STUBS); |
| } |
| } |
| |
| /** |
| * Functional interface to invoke JDBC method |
| */ |
| public interface MethodInvocation { |
| void invoke() throws Exception; |
| } |
| |
| /** |
| * Functional interface for verifying invoke JDBC method |
| */ |
| public interface MethodVerifier { |
| void verify(MethodInvocation invocation) throws Exception; |
| } |
| |
| /** |
| * Verifier for closed methods |
| */ |
| public static final MethodVerifier ASSERT_CLOSED = invocation -> { |
| try { |
| invocation.invoke(); |
| fail(); |
| } catch (SQLException e) { |
| assertThat(e, is(instanceOf(SQLException.class))); |
| assertThat(e.getMessage(), endsWith(" closed")); |
| } |
| }; |
| |
| /** |
| * Verifier for unsupported methods |
| */ |
| public static final MethodVerifier ASSERT_UNSUPPORTED = invocation -> { |
| try { |
| invocation.invoke(); |
| fail(); |
| } catch (SQLFeatureNotSupportedException e) { |
| // success |
| } |
| }; |
| |
| protected static final Predicate<? super Method> METHOD_FILTER = method -> { |
| final String name = method.getName(); |
| switch (name) { |
| case "close": |
| case "isClosed": |
| return false; |
| |
| default: |
| return true; |
| } |
| }; |
| |
| private final Method method; |
| private final MethodVerifier verifier; |
| |
| public AvaticaClosedTestBase(Method method, MethodVerifier verifier) { |
| this.method = method; |
| this.verifier = verifier; |
| } |
| |
| protected abstract T newInstance() throws Exception; |
| |
| @Test |
| public void checkMethod() throws Exception { |
| T object = newInstance(); |
| |
| final Object[] arguments = createFakeArguments(method); |
| verifier.verify(() -> { |
| try { |
| method.invoke(object, arguments); |
| } catch (InvocationTargetException e) { |
| throw Throwables.rethrowAsException(e.getCause()); |
| } |
| }); |
| } |
| |
| /** |
| * Get the list of methods to test and their associated verifier |
| */ |
| protected static <T> List<? extends Object[]> getMethodsToTest(Class<T> iface, |
| Class<? extends T> implementation, Predicate<? super Method> methodFilter, |
| Function<? super Method, ? extends MethodVerifier> methodMapping) { |
| // Get all the methods from the class, exclude the ones which are working even if object |
| // is closed and find their expected behavior |
| Stream<Method> methods = Arrays.stream(iface.getDeclaredMethods()); |
| |
| return methods |
| .filter(m -> { |
| // Filter out methods which are not overridden in implementation |
| try { |
| return !implementation.getMethod(m.getName(), m.getParameterTypes()).isDefault(); |
| } catch (NoSuchMethodException e) { |
| // if implementation has not a method, although class is not abstract, |
| // assume that it's because parameters don't match exactly |
| return true; |
| } |
| }) |
| .filter(methodFilter).map(m -> new Object[] { m, methodMapping.apply(m) }) |
| .collect(Collectors.toList()); |
| } |
| |
| /** |
| * Create an array of default arguments for the method |
| */ |
| private static Object[] createFakeArguments(Method method) { |
| Class<?>[] parameterTypes = method.getParameterTypes(); |
| Object[] values = new Object[parameterTypes.length]; |
| for (int i = 0; i < parameterTypes.length; i++) { |
| Class<?> parameterType = parameterTypes[i]; |
| // Primitive types |
| if (parameterType == Boolean.TYPE) { |
| values[i] = Boolean.FALSE; |
| } else if (parameterType == Byte.TYPE) { |
| values[i] = Byte.valueOf((byte) 0); |
| } else if (parameterType == Short.TYPE) { |
| values[i] = Short.valueOf((short) 0); |
| } else if (parameterType == Integer.TYPE) { |
| values[i] = Integer.valueOf(0); |
| } else if (parameterType == Long.TYPE) { |
| values[i] = Long.valueOf(0); |
| } else if (parameterType == Float.TYPE) { |
| values[i] = Float.valueOf(0); |
| } else if (parameterType == Double.TYPE) { |
| values[i] = Double.valueOf(0); |
| } else if (parameterType == Character.TYPE) { |
| values[i] = Character.valueOf((char) 0); |
| } else { |
| values[i] = null; |
| } |
| } |
| |
| return values; |
| } |
| } |
| |
| // End AvaticaClosedTestBase.java |