/*
* 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.nifi.processors.windows.event.log.jna;
import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.WinNT;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processors.windows.event.log.ConsumeWindowsEventLogTest;
import org.apache.nifi.processors.windows.event.log.JNAJUnitRunner;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import java.util.Arrays;
import java.util.function.Consumer;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(JNAJUnitRunner.class)
public class EventSubscribeXmlRenderingCallbackTest {
@Mock
ComponentLog logger;
@Mock
Consumer<String> consumer;
@Mock
WEvtApi wEvtApi;
@Mock
Kernel32 kernel32;
@Mock
ErrorLookup errorLookup;
@Mock
WinNT.HANDLE handle;
private EventSubscribeXmlRenderingCallback eventSubscribeXmlRenderingCallback;
private int maxBufferSize;
@Before
public void setup() {
maxBufferSize = 8;
eventSubscribeXmlRenderingCallback = new EventSubscribeXmlRenderingCallback(logger, consumer, maxBufferSize, wEvtApi, kernel32, errorLookup);
}
@Test
public void testErrorJustLogs() {
int errorCode = 111;
Pointer pointer = mock(Pointer.class);
when(handle.getPointer()).thenReturn(pointer);
when(pointer.getInt(0)).thenReturn(errorCode);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.ERROR, null, handle);
verify(logger).error(EventSubscribeXmlRenderingCallback.RECEIVED_THE_FOLLOWING_WIN32_ERROR + errorCode);
}
@Test
public void testMissingRecordLog() {
Pointer pointer = mock(Pointer.class);
when(handle.getPointer()).thenReturn(pointer);
when(pointer.getInt(0)).thenReturn(WEvtApi.EvtSubscribeErrors.ERROR_EVT_QUERY_RESULT_STALE);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.ERROR, null, handle);
verify(logger).error(EventSubscribeXmlRenderingCallback.MISSING_EVENT_MESSAGE);
}
@Test
public void testSuccessfulRender() {
String small = "abc";
handle = ConsumeWindowsEventLogTest.mockEventHandles(wEvtApi, kernel32, Arrays.asList(small + "\u0000")).get(0);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.DELIVER, null, handle);
verify(consumer).accept(small);
}
@Test
public void testUnsuccessfulRender() {
String large = "abcde";
handle = ConsumeWindowsEventLogTest.mockEventHandles(wEvtApi, kernel32, Arrays.asList(large)).get(0);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.DELIVER, null, handle);
verify(consumer, never()).accept(anyString());
}
@Test
public void testResizeRender() {
// Make a string too big to fit into initial buffer
StringBuilder testStringBuilder = new StringBuilder();
for (int i = 0; i < 10; i++) {
testStringBuilder.append(i);
}
String base = testStringBuilder.toString();
testStringBuilder = new StringBuilder();
for (int i = 0; i < 100; i++) {
testStringBuilder.append(base);
}
String veryLarge = testStringBuilder.toString();
handle = ConsumeWindowsEventLogTest.mockEventHandles(wEvtApi, kernel32, Arrays.asList(veryLarge)).get(0);
eventSubscribeXmlRenderingCallback = new EventSubscribeXmlRenderingCallback(logger, consumer, 2048, wEvtApi, kernel32, errorLookup);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.DELIVER, null, handle);
verify(consumer).accept(veryLarge);
}
@Test
public void testErrorRendering() {
int value = 225;
String code = "225code";
when(kernel32.GetLastError()).thenReturn(value);
when(errorLookup.getLastError()).thenReturn(code);
eventSubscribeXmlRenderingCallback.onEvent(WEvtApi.EvtSubscribeNotifyAction.DELIVER, null, handle);
verify(logger).error(EventSubscribeXmlRenderingCallback.EVT_RENDER_RETURNED_THE_FOLLOWING_ERROR_CODE + code + ".");
}
}