diff --git a/test/src/test/atriasoft/exml/ExmlTestIntrospectionObjectConstructor.java b/test/src/test/atriasoft/exml/ExmlTestIntrospectionObjectConstructor.java
new file mode 100644
index 0000000..1a36c07
--- /dev/null
+++ b/test/src/test/atriasoft/exml/ExmlTestIntrospectionObjectConstructor.java
@@ -0,0 +1,49 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2021, Edouard DUPIN, all right reserved
+ * @license MPL v2.0 (see license file)
+ */
+package test.atriasoft.exml;
+
+import org.atriasoft.exml.Exml;
+import org.atriasoft.exml.annotation.XmlAttribute;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+public class ExmlTestIntrospectionObjectConstructor {
+	static final String NODE_NAME = "elem";
+	@BeforeAll
+	public static void beforeClass() {
+		Log.warning("================================================================");
+	}
+	public class TestMultiConstructor {
+		@XmlAttribute
+		public Integer valueA;
+		public double valueB;
+		public TestMultiConstructor(final Integer valueA, final double valueB) {
+			this.valueA = valueA;
+			this.valueB = valueB;
+		}
+		public TestMultiConstructor() {
+		}
+	}
+	@Test
+	public void testModelMultiConstructor()  {
+		TestMultiConstructor elem = new TestMultiConstructor(66, 18523.0);
+		StringBuilder builder = new StringBuilder();
+		Assertions.assertDoesNotThrow(() -> Exml.generate(elem, ExmlTestIntrospectionObject.NODE_NAME, builder));
+		String dataTest = builder.toString();
+		Log.warning("data generated: " + builder.toString());
+		Assertions.assertEquals("<elem valueA=\"66\">\n"
+				+ "	<valueB>18523.0</valueB>\n"
+				+ "</elem>", dataTest);
+
+		final TestMultiConstructor root = Assertions.assertDoesNotThrow(() -> Exml.parseOne(dataTest, TestMultiConstructor.class, ExmlTestIntrospectionObject.NODE_NAME));
+		Assertions.assertEquals(66, root.valueA);
+		Assertions.assertEquals(18523.0f, root.valueB);
+	}
+
+}
+