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[BAEL-6533] XML from string unit tests #17770

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Merged
merged 4 commits into from
Oct 11, 2024
Merged

[BAEL-6533] XML from string unit tests #17770

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7ba155e
[BAEL-6533] Unit tests for creating XML from string
haidar47x Oct 6, 2024
346a45f
Merge branch 'eugenp:master' into master
haidar47x Oct 6, 2024
e90eaba
[BAEL-6533] Updated unit tests method names
haidar47x Oct 6, 2024
0250eab
Merge branch 'master' of https://github.com/haidar47x/tutorials
haidar47x Oct 6, 2024
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42 changes: 41 additions & 1 deletion xml-3/src/test/java/com/baeldung/xml/XmlDocumentUnitTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,14 +9,17 @@
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.StringReader;
import java.nio.charset.StandardCharsets;

import static org.junit.jupiter.api.Assertions.*;

public class XmlDocumentUnitTest {

@Test
public void givenXmlString_whenConvertToDocument_thenSuccess() throws Exception {
public void givenXmlString_whenConvertToDocumentViaString_thenSuccess() throws Exception {
String xmlString = "<root><child>Example</child></root>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Expand Down Expand Up @@ -64,4 +67,41 @@ public void givenInvalidXmlString_whenConvertToDocument_thenThrowException() thr
builder.parse(new InputSource(new StringReader(invalidXmlString)));
});
}

@Test
public void givenXmlString_whenConvertToDocumentViaCharStream_thenSuccess() throws Exception {
String xmlString = "<posts><post postId='1'><title>Example Post</title><author>John Doe</author></post></posts>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();

InputSource inputSource = new InputSource(new StringReader(xmlString));
Document document = builder.parse(inputSource);

assertNotNull(document);
assertEquals("posts", document.getDocumentElement().getNodeName());

Element rootElement = document.getDocumentElement();
var childElements = rootElement.getElementsByTagName("post");
assertNotNull(childElements);
assertEquals(1, childElements.getLength());
}

@Test
public void givenXmlString_whenConvertToDocumentViaByteArray_thenSuccess() throws Exception {
String xmlString = "<posts><post postId='1'><title>Example Post</title><author>John Doe</author></post></posts>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();

InputStream inputStream = new ByteArrayInputStream(xmlString.getBytes(StandardCharsets.UTF_8));
Document document = builder.parse(inputStream);

assertNotNull(document);
assertEquals("posts", document.getDocumentElement().getNodeName());

Element rootElement = document.getDocumentElement();
var childElements = rootElement.getElementsByTagName("post");
assertNotNull(childElements);
assertEquals(1, childElements.getLength());
}

}