303 lines
11 KiB
Java
303 lines
11 KiB
Java
package com.baeldung.xmlunit;
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import static org.hamcrest.MatcherAssert.assertThat;
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import static org.hamcrest.Matchers.equalTo;
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import static org.hamcrest.Matchers.greaterThan;
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import static org.hamcrest.core.IsNot.not;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static org.xmlunit.matchers.CompareMatcher.isIdenticalTo;
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import static org.xmlunit.matchers.CompareMatcher.isSimilarTo;
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import static org.xmlunit.matchers.HasXPathMatcher.hasXPath;
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import java.io.File;
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import java.util.Iterator;
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import org.junit.Ignore;
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import org.junit.Test;
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import org.w3c.dom.NamedNodeMap;
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import org.w3c.dom.Node;
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import org.xmlunit.builder.DiffBuilder;
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import org.xmlunit.builder.Input;
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import org.xmlunit.diff.ComparisonControllers;
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import org.xmlunit.diff.DefaultNodeMatcher;
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import org.xmlunit.diff.Diff;
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import org.xmlunit.diff.Difference;
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import org.xmlunit.diff.ElementSelectors;
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import org.xmlunit.validation.Languages;
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import org.xmlunit.validation.ValidationProblem;
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import org.xmlunit.validation.ValidationResult;
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import org.xmlunit.validation.Validator;
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import org.xmlunit.xpath.JAXPXPathEngine;
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public class XMLUnitTest {
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@Test
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public void givenWrongXml_whenValidateFailsAgainstXsd_thenCorrect() {
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Validator v = Validator.forLanguage(Languages.W3C_XML_SCHEMA_NS_URI);
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v.setSchemaSource(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students.xsd")).build());
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ValidationResult r = v.validateInstance(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students_with_error.xml")).build());
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assertFalse(r.isValid());
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}
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@Test
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public void givenXmlWithErrors_whenReturnsValidationProblems_thenCorrect() {
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Validator v = Validator.forLanguage(Languages.W3C_XML_SCHEMA_NS_URI);
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v.setSchemaSource(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students.xsd")).build());
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ValidationResult r = v.validateInstance(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students_with_error.xml")).build());
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Iterator<ValidationProblem> probs = r.getProblems().iterator();
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int count = 0;
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while (probs.hasNext()) {
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count++;
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probs.next().toString();
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}
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assertTrue(count > 0);
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}
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@Test
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public void givenXml_whenValidatesAgainstXsd_thenCorrect() {
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Validator v = Validator.forLanguage(Languages.W3C_XML_SCHEMA_NS_URI);
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v.setSchemaSource(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students.xsd")).build());
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ValidationResult r = v.validateInstance(Input.fromStream(
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XMLUnitTest.class.getResourceAsStream(
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"/students.xml")).build());
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Iterator<ValidationProblem> probs = r.getProblems().iterator();
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while (probs.hasNext()) {
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System.out.println(probs.next().toString());
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}
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assertTrue(r.isValid());
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}
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@Test
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public void givenXPath_whenAbleToRetrieveNodes_thenCorrect() {
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ClassLoader classLoader = getClass().getClassLoader();
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Iterable<Node> i = new JAXPXPathEngine().selectNodes(
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"//teacher",
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Input.fromFile(
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new File(classLoader.getResource("teachers.xml")
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.getFile())).build());
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assertNotNull(i);
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int count = 0;
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for (Iterator<Node> it = i.iterator(); it.hasNext();) {
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count++;
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Node node = it.next();
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assertEquals("teacher", node.getNodeName());
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NamedNodeMap map = node.getAttributes();
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assertEquals("department", map.item(0).getNodeName());
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assertEquals("id", map.item(1).getNodeName());
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assertEquals("teacher", node.getNodeName());
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}
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assertEquals(2, count);
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}
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@Test
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public void givenXmlSource_whenAbleToValidateExistingXPath_thenCorrect() {
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ClassLoader classLoader = getClass().getClassLoader();
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assertThat(Input.fromFile(new File(classLoader.getResource(
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"teachers.xml").getFile())), hasXPath("//teachers"));
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assertThat(Input.fromFile(new File(classLoader.getResource(
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"teachers.xml").getFile())), hasXPath("//teacher"));
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assertThat(Input.fromFile(new File(classLoader.getResource(
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"teachers.xml").getFile())), hasXPath("//subject"));
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assertThat(Input.fromFile(new File(classLoader.getResource(
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"teachers.xml").getFile())), hasXPath("//@department"));
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}
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@Test
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public void givenXmlSource_whenFailsToValidateInExistentXPath_thenCorrect() {
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ClassLoader classLoader = getClass().getClassLoader();
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assertThat(Input.fromFile(new File(classLoader.getResource(
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"teachers.xml").getFile())), not(hasXPath("//sujet")));
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}
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// NOTE: ignore as this test demonstrates that two XMLs that contain the same data
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// will fail the isSimilarTo test.
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@Test @Ignore
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public void given2XMLS_whenSimilar_thenCorrect_fails() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><boolean>false</boolean><int>3</int></struct>";
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assertThat(testXml, isSimilarTo(controlXml));
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}
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@Test
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public void given2XMLS_whenSimilar_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><boolean>false</boolean><int>3</int></struct>";
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assertThat(testXml,isSimilarTo(controlXml).withNodeMatcher(
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new DefaultNodeMatcher(ElementSelectors.byName)));
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}
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@Test
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public void given2XMLs_whenSimilarWithDiff_thenCorrect() throws Exception {
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String myControlXML = "<struct><int>3</int><boolean>false</boolean></struct>";
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String myTestXML = "<struct><boolean>false</boolean><int>3</int></struct>";
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Diff myDiffSimilar = DiffBuilder
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.compare(myControlXML)
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.withTest(myTestXML)
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.withNodeMatcher(
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new DefaultNodeMatcher(ElementSelectors.byName))
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.checkForSimilar().build();
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assertFalse("XML similar " + myDiffSimilar.toString(),
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myDiffSimilar.hasDifferences());
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}
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@Test
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public void given2XMLsWithDifferences_whenTestsSimilarWithDifferenceEvaluator_thenCorrect() {
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final String control = "<a><b attr=\"abc\"></b></a>";
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final String test = "<a><b attr=\"xyz\"></b></a>";
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Diff myDiff = DiffBuilder
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.compare(control)
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.withTest(test)
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.withDifferenceEvaluator(
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new IgnoreAttributeDifferenceEvaluator("attr"))
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.checkForSimilar().build();
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assertFalse(myDiff.toString(), myDiff.hasDifferences());
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}
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@Test
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public void given2XMLsWithDifferences_whenTestsDifferentWithoutDifferenceEvaluator_thenCorrect() {
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final String control = "<a><b attr=\"abc\"></b></a>";
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final String test = "<a><b attr=\"xyz\"></b></a>";
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Diff myDiff = DiffBuilder.compare(control).withTest(test)
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.checkForSimilar().build();
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// assertFalse(myDiff.toString(), myDiff.hasDifferences());
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assertTrue(myDiff.toString(), myDiff.hasDifferences());
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}
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@Test
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public void given2XMLS_whenSimilarWithCustomElementSelector_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><boolean>false</boolean><int>3</int></struct>";
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assertThat(
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testXml,
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isSimilarTo(controlXml).withNodeMatcher(
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new DefaultNodeMatcher(ElementSelectors.byName)));
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}
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@Test
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public void givenFileSourceAsObject_whenAbleToInput_thenCorrect() {
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ClassLoader classLoader = getClass().getClassLoader();
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assertThat(Input.from(new File(classLoader.getResource("test.xml").getFile())),
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isSimilarTo(Input.from(new File(classLoader.getResource("control.xml").getFile()))));
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}
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@Test
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public void givenStreamAsSource_whenAbleToInput_thenCorrect() {
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assertThat(Input.fromStream(XMLUnitTest.class
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.getResourceAsStream("/test.xml")),
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isSimilarTo(Input.fromStream(XMLUnitTest.class
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.getResourceAsStream("/control.xml"))));
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}
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@Test
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public void givenStreamAsObject_whenAbleToInput_thenCorrect() {
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assertThat(Input.from(XMLUnitTest.class.getResourceAsStream("/test.xml")),
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isSimilarTo(Input.from(XMLUnitTest.class.getResourceAsStream("/control.xml"))));
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}
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@Test
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public void givenStringSourceAsObject_whenAbleToInput_thenCorrect() {
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assertThat(
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Input.from("<struct><int>3</int><boolean>false</boolean></struct>"),
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isSimilarTo(Input
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.from("<struct><int>3</int><boolean>false</boolean></struct>")));
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}
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@Test
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public void givenFileSource_whenAbleToInput_thenCorrect() {
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ClassLoader classLoader = getClass().getClassLoader();
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String testPath = classLoader.getResource("test.xml").getPath();
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String controlPath = classLoader.getResource("control.xml").getPath();
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assertThat(Input.fromFile(testPath),
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isSimilarTo(Input.fromFile(controlPath)));
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}
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@Test
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public void givenStringSource_whenAbleToInput_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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assertThat(Input.fromString(testXml),
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isSimilarTo(Input.fromString(controlXml)));
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}
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@Test
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public void givenSource_whenAbleToInput_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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assertThat(Input.fromString(testXml),
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isSimilarTo(Input.fromString(controlXml)));
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}
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@Test
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public void given2XMLS_whenIdentical_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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assertThat(testXml, isIdenticalTo(controlXml));
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}
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@Test
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public void given2XMLSWithSimilarNodesButDifferentSequence_whenNotIdentical_thenCorrect() {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><boolean>false</boolean><int>3</int></struct>";
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assertThat(testXml, not(isIdenticalTo(controlXml)));
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}
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@Test
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public void given2XMLS_whenGeneratesDifferences_thenCorrect()
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throws Exception {
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String controlXml = "<struct><int>3</int><boolean>false</boolean></struct>";
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String testXml = "<struct><boolean>false</boolean><int>3</int></struct>";
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Diff myDiff = DiffBuilder.compare(controlXml).withTest(testXml).build();
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Iterator<Difference> iter = myDiff.getDifferences().iterator();
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int size = 0;
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while (iter.hasNext()) {
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iter.next().toString();
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size++;
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}
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assertThat(size, greaterThan(1));
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}
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@Test
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public void given2XMLS_whenGeneratesOneDifference_thenCorrect()
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throws Exception {
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String myControlXML = "<struct><int>3</int><boolean>false</boolean></struct>";
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String myTestXML = "<struct><boolean>false</boolean><int>3</int></struct>";
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Diff myDiff = DiffBuilder
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.compare(myControlXML)
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.withTest(myTestXML)
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.withComparisonController(
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ComparisonControllers.StopWhenDifferent).build();
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Iterator<Difference> iter = myDiff.getDifferences().iterator();
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int size = 0;
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while (iter.hasNext()) {
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iter.next().toString();
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size++;
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}
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assertThat(size, equalTo(1));
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}
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}
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