Build fix + Added StAX util tests

Signed-off-by: Flurb <[email protected]>

Author: Flurb

validator/src/main/java/org/lfenergy/compas/scl/validator/xsd/resourceresolver/ResourceResolver.java

@@ -11,7 +11,7 @@
 public class ResourceResolver implements LSResourceResolver {
     private final String sclVersion;
 
-    ResourceResolver(String sclVersion) {
+    public ResourceResolver(String sclVersion) {
         this.sclVersion = sclVersion;
     }
 

validator/src/test/java/org/lfenergy/compas/scl/validator/util/StaxUtilTest.java

@@ -3,5 +3,80 @@
 // SPDX-License-Identifier: Apache-2.0
 package org.lfenergy.compas.scl.validator.util;
 
+import org.junit.jupiter.api.Test;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.events.StartElement;
+
+import java.io.IOException;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.lfenergy.compas.scl.validator.util.StaxUtil.getAttributeValue;
+import static org.lfenergy.compas.scl.validator.util.StaxUtil.isElement;
+
 public class StaxUtilTest {
+    @Test
+    void constructor_WhenConstructorCalled_ThenShouldThrowExceptionCauseForbidden() {
+        assertThrows(UnsupportedOperationException.class, StaxUtil::new);
+    }
+
+    @Test
+    void isElement_WhenCalledWithExpectedElementName_ThenFirstElementHasCorrectElementName() throws XMLStreamException, IOException {
+        var element = getFirstElement();
+        if (element != null) {
+            var result = isElement(element, "SCL");
+            assertTrue(result, "No SCL Element Found");
+        } else {
+            fail("XML File couldn't be read.");
+        }
+    }
+
+    @Test
+    void isElement_WhenCalledWithUnknownElementName_ThenFirstElementHasIncorrectElementName() throws XMLStreamException, IOException {
+        var element = getFirstElement();
+        if (element != null) {
+            var result = isElement(element, "Unknown");
+            assertFalse(result, "Unknown Element shouldn't be Found");
+        } else {
+            fail("XML File couldn't be read.");
+        }
+    }
+
+    @Test
+    void getAttributeValue_WhenCalledWithKnownAttribute_ThenAttributeValueReturned() throws XMLStreamException, IOException {
+        var element = getFirstElement();
+        if (element != null) {
+            var result = getAttributeValue(element, "revision");
+            assertEquals("B", result);
+        } else {
+            fail("XML File couldn't be read.");
+        }
+    }
+
+    @Test
+    void getAttributeValue_WhenCalledWithUnknownAttribute_ThenNullReturned() throws XMLStreamException, IOException {
+        var element = getFirstElement();
+        if (element != null) {
+            var result = getAttributeValue(element, "unknown");
+            assertNull(result);
+        } else {
+            fail("XML File couldn't be read.");
+        }
+    }
+
+    private StartElement getFirstElement() throws XMLStreamException, IOException {
+        try (var inputStream = getClass().getResourceAsStream("/scl/example.scd")) {
+            var xmlInputFactory = XMLInputFactory.newInstance();
+            var reader = xmlInputFactory.createXMLEventReader(inputStream);
+
+            while (reader.hasNext()) {
+                var nextEvent = reader.nextEvent();
+                if (nextEvent.isStartElement()) {
+                    return nextEvent.asStartElement();
+                }
+            }
+            return null;
+        }
+    }
 }