[BAEL-2898] Working with XML in Groovy (#7083)

core-groovy-2/src/test/groovy/com/baeldung/xml/MarkupBuilderUnitTest.groovy

@@ -0,0 +1,40 @@
+package com.baeldung.xml
+
+import groovy.xml.MarkupBuilder
+import groovy.xml.XmlUtil
+import spock.lang.Specification
+
+class MarkupBuilderUnitTest extends Specification {
+
+    def xmlFile = getClass().getResource("articles_short_formatted.xml")
+
+def "Should create XML properly"() {
+    given: "Node structures"
+
+    when: "Using MarkupBuilderUnitTest to create com.baeldung.xml structure"
+    def writer = new StringWriter()
+    new MarkupBuilder(writer).articles {
+        article {
+            title('First steps in Java')
+            author(id: '1') {
+                firstname('Siena')
+                lastname('Kerr')
+            }
+            'release-date'('2018-12-01')
+        }
+        article {
+            title('Dockerize your SpringBoot application')
+            author(id: '2') {
+                firstname('Jonas')
+                lastname('Lugo')
+            }
+            'release-date'('2018-12-01')
+        }
+    }
+
+    then: "Xml is created properly"
+    XmlUtil.serialize(writer.toString()) == XmlUtil.serialize(xmlFile.text)
+}
+
+
+}

core-groovy-2/src/test/groovy/com/baeldung/xml/XmlParserUnitTest.groovy

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+package com.baeldung.xml
+
+
+import spock.lang.Shared
+import spock.lang.Specification
+
+class XmlParserUnitTest extends Specification {
+
+    def xmlFile = getClass().getResourceAsStream("articles.xml")
+
+    @Shared
+    def parser = new XmlParser()
+
+    def "Should read XML file properly"() {
+        given: "XML file"
+
+        when: "Using XmlParser to read file"
+        def articles = parser.parse(xmlFile)
+
+        then: "Xml is loaded properly"
+        articles.'*'.size() == 4
+        articles.article[0].author.firstname.text() == "Siena"
+        articles.article[2].'release-date'.text() == "2018-06-12"
+        articles.article[3].title.text() == "Java 12 insights"
+        articles.article.find { it.author.'@id'.text() == "3" }.author.firstname.text() == "Daniele"
+    }
+
+
+    def "Should add node to existing com.baeldung.xml using NodeBuilder"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Adding node to com.baeldung.xml"
+        def articleNode = new NodeBuilder().article(id: '5') {
+            title('Traversing XML in the nutshell')
+            author {
+                firstname('Martin')
+                lastname('Schmidt')
+            }
+            'release-date'('2019-05-18')
+        }
+        articles.append(articleNode)
+
+        then: "Node is added to com.baeldung.xml properly"
+        articles.'*'.size() == 5
+        articles.article[4].title.text() == "Traversing XML in the nutshell"
+    }
+
+    def "Should replace node"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Adding node to com.baeldung.xml"
+        def articleNode = new NodeBuilder().article(id: '5') {
+            title('Traversing XML in the nutshell')
+            author {
+                firstname('Martin')
+                lastname('Schmidt')
+            }
+            'release-date'('2019-05-18')
+        }
+        articles.article[0].replaceNode(articleNode)
+
+        then: "Node is added to com.baeldung.xml properly"
+        articles.'*'.size() == 4
+        articles.article[0].title.text() == "Traversing XML in the nutshell"
+    }
+
+    def "Should modify node"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Changing value of one of the nodes"
+        articles.article.each { it.'release-date'[0].value = "2019-05-18" }
+
+        then: "XML is updated"
+        articles.article.findAll { it.'release-date'.text() != "2019-05-18" }.isEmpty()
+    }
+
+    def "Should remove article from com.baeldung.xml"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Removing all articles but with id==3"
+        articles.article
+          .findAll { it.author.'@id'.text() != "3" }
+          .each { articles.remove(it) }
+
+        then: "There is only one article left"
+        articles.children().size() == 1
+        articles.article[0].author.'@id'.text() == "3"
+    }
+
+}

core-groovy-2/src/test/groovy/com/baeldung/xml/XmlSlurperUnitTest.groovy

@@ -0,0 +1,102 @@
+package com.baeldung.xml
+
+
+import groovy.xml.XmlUtil
+import spock.lang.Shared
+import spock.lang.Specification
+
+class XmlSlurperUnitTest extends Specification {
+
+    def xmlFile = getClass().getResourceAsStream("articles.xml")
+
+    @Shared
+    def parser = new XmlSlurper()
+
+    def "Should read XML file properly"() {
+        given: "XML file"
+
+        when: "Using XmlSlurper to read file"
+        def articles = parser.parse(xmlFile)
+
+        then: "Xml is loaded properly"
+        articles.'*'.size() == 4
+        articles.article[0].author.firstname == "Siena"
+        articles.article[2].'release-date' == "2018-06-12"
+        articles.article[3].title == "Java 12 insights"
+        articles.article.find { it.author.'@id' == "3" }.author.firstname == "Daniele"
+    }
+
+    def "Should add node to existing com.baeldung.xml"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Adding node to com.baeldung.xml"
+        articles.appendNode {
+            article(id: '5') {
+                title('Traversing XML in the nutshell')
+                author {
+                    firstname('Martin')
+                    lastname('Schmidt')
+                }
+                'release-date'('2019-05-18')
+            }
+        }
+
+        articles = parser.parseText(XmlUtil.serialize(articles))
+
+        then: "Node is added to com.baeldung.xml properly"
+        articles.'*'.size() == 5
+        articles.article[4].title == "Traversing XML in the nutshell"
+    }
+
+    def "Should modify node"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Changing value of one of the nodes"
+        articles.article.each { it.'release-date' = "2019-05-18" }
+
+        then: "XML is updated"
+        articles.article.findAll { it.'release-date' != "2019-05-18" }.isEmpty()
+    }
+
+    def "Should replace node"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Replacing node"
+        articles.article[0].replaceNode {
+            article(id: '5') {
+                title('Traversing XML in the nutshell')
+                author {
+                    firstname('Martin')
+                    lastname('Schmidt')
+                }
+                'release-date'('2019-05-18')
+            }
+        }
+
+        articles = parser.parseText(XmlUtil.serialize(articles))
+
+        then: "Node is replaced properly"
+        articles.'*'.size() == 4
+        articles.article[0].title == "Traversing XML in the nutshell"
+    }
+
+    def "Should remove article from com.baeldung.xml"() {
+        given: "XML object"
+        def articles = parser.parse(xmlFile)
+
+        when: "Removing all articles but with id==3"
+        articles.article
+          .findAll { it.author.'@id' != "3" }
+          .replaceNode {}
+
+        articles = parser.parseText(XmlUtil.serialize(articles))
+
+        then: "There is only one article left"
+        articles.children().size() == 1
+        articles.article[0].author.'@id' == "3"
+    }
+
+}

core-groovy-2/src/test/resources/com/baeldung/xml/articles.xml

@@ -0,0 +1,34 @@
+<articles>
+    <article>
+        <title>First steps in Java</title>
+        <author id='1'>
+            <firstname>Siena</firstname>
+            <lastname>Kerr</lastname>
+        </author>
+        <release-date>2018-12-01</release-date>
+    </article>
+    <article>
+        <title>Dockerize your SpringBoot application</title>
+        <author id='2'>
+            <firstname>Jonas</firstname>
+            <lastname>Lugo</lastname>
+        </author>
+        <release-date>2018-12-01</release-date>
+    </article>
+    <article>
+        <title>SpringBoot tutorial</title>
+        <author id='3'>
+            <firstname>Daniele</firstname>
+            <lastname>Ferguson</lastname>
+        </author>
+        <release-date>2018-06-12</release-date>
+    </article>
+    <article>
+        <title>Java 12 insights</title>
+        <author id='1'>
+            <firstname>Siena</firstname>
+            <lastname>Kerr</lastname>
+        </author>
+        <release-date>2018-07-22</release-date>
+    </article>
+</articles>

core-groovy-2/src/test/resources/com/baeldung/xml/articles_short_formatted.xml

@@ -0,0 +1,18 @@
+<articles>
+  <article>
+    <title>First steps in Java</title>
+    <author id='1'>
+      <firstname>Siena</firstname>
+      <lastname>Kerr</lastname>
+    </author>
+    <release-date>2018-12-01</release-date>
+  </article>
+  <article>
+    <title>Dockerize your SpringBoot application</title>
+    <author id='2'>
+      <firstname>Jonas</firstname>
+      <lastname>Lugo</lastname>
+    </author>
+    <release-date>2018-12-01</release-date>
+  </article>
+</articles>