ErrorLookupTest.java

/*
 * 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
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package org.apache.nifi.processors.windows.event.log.jna;

import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.WinError;
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 static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.when;

@RunWith(JNAJUnitRunner.class)
public class ErrorLookupTest {
    @Mock
    Kernel32 kernel32;

    private ErrorLookup errorLookup;

    @Before
    public void setup() {
        errorLookup = new ErrorLookup(kernel32);
    }

    @Test
    public void testErrorLookupExists() {
        when(kernel32.GetLastError()).thenReturn(WinError.ERROR_INSUFFICIENT_BUFFER);
        assertEquals("ERROR_INSUFFICIENT_BUFFER(" + WinError.ERROR_INSUFFICIENT_BUFFER + ")", errorLookup.getLastError());
    }

    @Test
    public void testErrorLookupDoesntExist() {
        when(kernel32.GetLastError()).thenReturn(Integer.MAX_VALUE);
        assertEquals(Integer.toString(Integer.MAX_VALUE), errorLookup.getLastError());
    }
}