add: стабильная версия

src/test/java/ru/di9/xml/XmlElementTest.java

@@ -0,0 +1,72 @@
+package ru.di9.xml;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.Iterator;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class XmlElementTest {
+    // language=XML
+    final String xml = """
+        <?xml version="1.0" encoding="UTF-8"?>
+        <root>
+            <!-- Комментарий -->
+            <node_str attr="VA-123">some value</node_str>
+            <node_int attr="24">99</node_int>
+            <node_bool attr="false">true</node_bool>
+            <empty/>
+            <node_str_commented>
+                <!-- comment -->
+                content
+            </node_str_commented>
+        </root>
+        """;
+
+    XmlElement rootElement;
+
+    @BeforeEach
+    void setup() {
+        rootElement = new XmlParser().parse(xml);
+        assertNotNull(rootElement);
+        assertEquals("root", rootElement.getTagName());
+    }
+
+    @Test
+    void testIterator() {
+        Iterator<XmlElement> iteratorElement = rootElement.iterator();
+        Iterator<String> iteratorTagName = Arrays.asList("node_str", "node_int", "node_bool", "empty").iterator();
+        Iterator<Object> iteratorAttribute = Arrays.asList(new Object[]{"VA-123", 24, false, null}).iterator();
+
+        while (iteratorElement.hasNext() && iteratorTagName.hasNext() && iteratorAttribute.hasNext()) {
+            var element = iteratorElement.next();
+            var tagName = iteratorTagName.next();
+            var attr = iteratorAttribute.next();
+
+            assertEquals(tagName, element.getTagName());
+            switch (element.getTagName()) {
+                case "node_str" -> assertEquals(attr, element.getAttribute("attr"));
+                case "node_int" -> assertEquals(attr, element.getAttributeAsInt("attr"));
+                case "node_bool" -> assertEquals(attr, element.getAttributeAsBool("attr"));
+                case "empty" -> {
+                    assertTrue(StringUtils.isEmpty(element.getValue()));
+                    assertFalse(element.hasAttribute("attr"));
+                    assertTrue(StringUtils.isEmpty(element.getAttribute("attr")));
+                }
+                default -> fail("Unknown tag '%s'".formatted(element.getTagName()));
+            }
+        }
+    }
+
+    @Test
+    void testCommentedContent() {
+        var optElement = rootElement.getFirstElementByTagName("node_str_commented");
+        assertNotNull(optElement);
+        assertTrue(optElement.isPresent());
+
+        var element = optElement.get();
+        assertEquals("content", element.getValue().trim());
+    }
+}