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package org.openslx.libvirt.xml;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.fail;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.nio.charset.StandardCharsets;
import org.apache.commons.io.FileUtils;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.config.Configurator;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.function.Executable;
class LibvirtXmlDocumentStub extends LibvirtXmlDocument
{
public LibvirtXmlDocumentStub( File xml )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml );
}
public LibvirtXmlDocumentStub( File xml, InputStream rngSchema )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml, rngSchema );
}
}
public class LibvirtXmlDocumentTest
{
private static final String EMPTY = new String();
@BeforeAll
public static void setUp()
{
// disable logging with log4j
Configurator.setRootLevel( Level.OFF );
}
private LibvirtXmlDocument newLibvirtXmlDocumentInstance( String xmlFileName )
{
LibvirtXmlDocument document = null;
try {
File xmlFile = LibvirtXmlTestResources.getLibvirtXmlFile( xmlFileName );
document = new LibvirtXmlDocumentStub( xmlFile );
} catch ( LibvirtXmlDocumentException | LibvirtXmlSerializationException | LibvirtXmlValidationException e ) {
String errorMsg = new String( "Cannot prepare requested Libvirt XML file from the resources folder" );
fail( errorMsg );
}
return document;
}
private LibvirtXmlDocument newLibvirtXmlDocumentValidationInstance( String xmlFileName, String rngSchemaFileName )
throws LibvirtXmlValidationException
{
LibvirtXmlDocument document = null;
try {
File xmlFile = LibvirtXmlTestResources.getLibvirtXmlFile( xmlFileName );
InputStream rngSchema = LibvirtXmlResources.getLibvirtRng( rngSchemaFileName );
document = new LibvirtXmlDocumentStub( xmlFile, rngSchema );
} catch ( LibvirtXmlDocumentException | LibvirtXmlSerializationException e ) {
String errorMsg = new String( "Cannot prepare requested Libvirt XML file from the resources folder" );
fail( errorMsg );
}
return document;
}
private static long countLines( Reader input ) throws IOException
{
final BufferedReader bfrContent = new BufferedReader( input );
return bfrContent.lines().count();
}
public static long countLinesFromString( String input ) throws IOException
{
return LibvirtXmlDocumentTest.countLines( new StringReader( input ) );
}
public static long countLinesFromFile( File input ) throws IOException
{
return LibvirtXmlDocumentTest.countLines( new FileReader( input ) );
}
@Test
@DisplayName( "Read libvirt XML file to String" )
public void testReadXmlFileToString() throws LibvirtXmlSerializationException, IOException
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
File originalXmlFile = LibvirtXmlTestResources.getLibvirtXmlFile( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
final String readXmlContent = vm.toXml();
assertNotNull( readXmlContent );
final long lengthReadXmlContent = LibvirtXmlDocumentTest.countLinesFromString( readXmlContent );
final long lengthOriginalXmlContent = LibvirtXmlDocumentTest.countLinesFromFile( originalXmlFile );
assertEquals( lengthOriginalXmlContent, lengthReadXmlContent );
}
@Test
@DisplayName( "Read libvirt XML file to file" )
public void testReadXmlFileToFile() throws LibvirtXmlSerializationException, IOException
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
File originalXmlFile = LibvirtXmlTestResources.getLibvirtXmlFile( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
File readXmlFile = LibvirtXmlTestResources.createLibvirtXmlTempFile();
vm.toXml( readXmlFile );
final String readXmlContent = FileUtils.readFileToString( readXmlFile, StandardCharsets.UTF_8 );
final String originalXmlContent = FileUtils.readFileToString( originalXmlFile, StandardCharsets.UTF_8 );
assertNotNull( readXmlContent );
final long lengthReadXmlContent = LibvirtXmlDocumentTest.countLinesFromString( readXmlContent );
final long lengthOriginalXmlContent = LibvirtXmlDocumentTest.countLinesFromString( originalXmlContent );
assertEquals( lengthOriginalXmlContent, lengthReadXmlContent );
}
@Test
@DisplayName( "Validate correct libvirt XML file" )
public void testValidateCorrectXmlFile()
{
Executable validateXmlDocument = () -> {
this.newLibvirtXmlDocumentValidationInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml", "domain.rng" );
};
assertDoesNotThrow( validateXmlDocument );
}
@Test
@DisplayName( "Validate incorrect libvirt XML file" )
public void testValidateIncorrectXmlFile()
{
Executable validateXmlDocument = () -> {
LibvirtXmlDocument doc = this.newLibvirtXmlDocumentValidationInstance( "qemu-kvm_default-ubuntu-20-04-vm-invalid.xml", "domain.rng" );
doc.validateXml();
};
assertThrows( LibvirtXmlValidationException.class, validateXmlDocument );
}
@Test
@DisplayName( "Get non-existent node from libvirt XML file" )
public void testGetNonExistentElement()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertNull( vm.getRootXmlNode().getXmlElement( "info" ) );
}
@Test
@DisplayName( "Set non-existent node in libvirt XML file" )
public void testSetNonExistentElement()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElement( "info" );
assertNotNull( vm.getRootXmlNode().getXmlElement( "info" ) );
}
@Test
@DisplayName( "Get non-existent element's value in libvirt XML file" )
public void testGetNonExistentElementValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertNull( vm.getRootXmlNode().getXmlElementValue( "info" ) );
}
@Test
@DisplayName( "Set non-existent element's value in libvirt XML file" )
public void testSetNonExistentElementValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElementValue( "info", "content" );
assertEquals( "content", vm.getRootXmlNode().getXmlElementValue( "info" ) );
}
@Test
@DisplayName( "Get empty element from libvirt XML file" )
public void testGetEmptyElement()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertNotNull( vm.getRootXmlNode().getXmlElement( "features/acpi" ) );
}
@Test
@DisplayName( "Set empty element in libvirt XML file" )
public void testSetEmptyElement()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElement( "features/acpi" );
assertNotNull( vm.getRootXmlNode().getXmlElement( "features/acpi" ) );
}
@Test
@DisplayName( "Get empty element's value from libvirt XML file" )
public void testGetEmptyElementValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertEquals( EMPTY, vm.getRootXmlNode().getXmlElementValue( "features/acpi" ) );
}
@Test
@DisplayName( "Set empty element's value in libvirt XML file" )
public void testSetEmptyElementValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElementValue( "features/acpi", "content" );
assertEquals( "content", vm.getRootXmlNode().getXmlElementValue( "features/acpi" ) );
}
@Test
@DisplayName( "Get non-existent element's attribute value from libvirt XML file" )
public void testGetNonExistentElementAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertNull( vm.getRootXmlNode().getXmlElementAttributeValue( "info", "test" ) );
}
@Test
@DisplayName( "Set non-existent element's attribute value from libvirt XML file" )
public void testSetNonExistentElementAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElementAttributeValue( "info", "test", "info" );
assertEquals( "info", vm.getRootXmlNode().getXmlElementAttributeValue( "info", "test" ) );
}
@Test
@DisplayName( "Get element's non-existent attribute value from libvirt XML file" )
public void testGetElementNonExistentAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertNull( vm.getRootXmlNode().getXmlElementAttributeValue( "features/acpi", "test" ) );
}
@Test
@DisplayName( "Set element's non-existent attribute value from libvirt XML file" )
public void testSetElementNonExistentAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElementAttributeValue( "features/acpi", "test", "info" );
assertEquals( "info", vm.getRootXmlNode().getXmlElementAttributeValue( "features/acpi", "test" ) );
}
@Test
@DisplayName( "Get element's attribute value from libvirt XML file" )
public void testGetElementAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
assertEquals( "partial", vm.getRootXmlNode().getXmlElementAttributeValue( "cpu", "check" ) );
}
@Test
@DisplayName( "Set element's attribute value from libvirt XML file" )
public void testSetElementAttributeValue()
{
LibvirtXmlDocument vm = this.newLibvirtXmlDocumentInstance( "qemu-kvm_default-ubuntu-20-04-vm.xml" );
vm.getRootXmlNode().setXmlElementAttributeValue( "cpu", "check", "full" );
assertEquals( "full", vm.getRootXmlNode().getXmlElementAttributeValue( "cpu", "check" ) );
}
}
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