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/*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
package com.sun.jna;
import junit.framework.TestCase;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Properties;
import java.util.Set;
/**
* Test utility class for inspecting {@link com.sun.jna.Structure#getFieldOrder()} methods.
*
* @author Dan Rollo
* Date: 1/17/13
* Time: 4:29 PM
*/
public class StructureFieldOrderInspectorTest extends TestCase {
private String origPropJNANoSys;
@Override
protected void setUp() {
origPropJNANoSys = System.getProperty("jna.nosys");
System.setProperty("jna.nosys", "true"); // would be set by ant script, set here for IDE usage
}
@Override
protected void tearDown() {
if (origPropJNANoSys == null) {
Properties props = (Properties)System.getProperties().clone();
props.remove("jna.nosys");
System.setProperties(props);
} else {
System.setProperty("jna.nosys", origPropJNANoSys);
}
}
public void testFindStructureSubClasses() {
final Set<Class<? extends Structure>> classes = StructureFieldOrderInspector.findSubTypesOfStructure(Platform.class);
assertTrue("Found no Structure sub types.", classes.size() > 0);
for (final Class<? extends Structure> structureSubType : classes) {
assertTrue(structureSubType.getName(), Structure.class.isAssignableFrom(structureSubType));
}
}
public void testCheckMethodGetFieldOrderExisting() {
StructureFieldOrderInspector.checkMethodGetFieldOrder(StructureByValueTest.TestNativeMappedInStructure.class, null);
}
public void testCheckMethodGetFieldOrderTagInterface() {
StructureFieldOrderInspector.checkMethodGetFieldOrder(StructureByValueTest.TestNativeMappedInStructure.ByValue.class, null);
}
private static final class MyStructMissingField extends Structure {
public String missingDeclaredField;
@Override
protected List<String> getFieldOrder() {
//noinspection unchecked
return Collections.<String>emptyList();
}
}
public void testCheckMethodGetFieldOrderMissingField() throws Exception {
try {
StructureFieldOrderInspector.checkMethodGetFieldOrder(MyStructMissingField.class, null);
fail("Expected Error: Structure.getFieldOrder()...");
} catch (RuntimeException e) {
assertTrue(e.getCause().getCause().getMessage().contains("not match declared field names"));
}
}
private static final class MyStructExtraField extends Structure {
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("extraField");
}
}
public void testCheckMethodGetFieldOrderExtraField() throws Exception {
try {
StructureFieldOrderInspector.checkMethodGetFieldOrder(MyStructExtraField.class, null);
fail("Expected Error: Structure.getFieldOrder()...");
} catch (RuntimeException e) {
assertTrue(e.getCause().getCause().getMessage().contains("not match declared field names"));
}
}
private static final class MyStructStaticField extends Structure {
public long instanceField;
public static long myStaticField = -1;
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("instanceField");
}
}
public void testCheckMethodGetFieldOrderStaticField() throws Exception {
StructureFieldOrderInspector.checkMethodGetFieldOrder(MyStructStaticField.class, null);
}
private static class MyStructSuper extends Structure {
public long instanceField;
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("instanceField");
}
}
private static final class MyStructChildEmpty extends MyStructSuper {
}
public void testCheckMethodGetFieldOrderSuperImplOnly() throws Exception {
StructureFieldOrderInspector.checkMethodGetFieldOrder(MyStructChildEmpty.class, null);
}
public void testCheckMethodGetFieldOrderWithAbstractSubtype() throws Exception {
StructureFieldOrderInspector.checkMethodGetFieldOrder(Union.class, null);
}
public void testCheckMethodGetFieldOrderWithIgnoreCtorError() throws Exception {
final List<String> ignoreConstructorError = new ArrayList<>();
ignoreConstructorError.add(StructureFieldOrderInspectorTest.class.getName());
StructureFieldOrderInspector.checkMethodGetFieldOrder(MyStructExtraField.class, ignoreConstructorError);
}
public void testCheckStructureGetFieldOrder() throws Exception {
StructureFieldOrderInspector.checkStructureGetFieldOrder(Platform.class, null);
}
public void testBatchCheckStructureGetFieldOrder() throws Exception {
try {
StructureFieldOrderInspector.batchCheckStructureGetFieldOrder(StructureTest.class, null);
fail("Expected structure failures");
} catch (RuntimeException e) {
assertTrue(e.getMessage().startsWith("Some Structure sub types"));
}
}
}
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