added StatementsTest

src/test/java/org/jd/core/v1/model/javasyntax/statement/StatementsTest.java

@@ -0,0 +1,37 @@
+package org.jd.core.v1.model.javasyntax.statement;
+
+import org.jd.core.v1.service.converter.classfiletojavasyntax.visitor.TestVisitor;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+public class StatementsTest {
+    @Test
+    public void testStatements() {
+        // Test constructor with List
+        Statement statement1 = new ExpressionStatement(null);
+        Statement statement2 = new ExpressionStatement(null);
+        Statements statementsWithList = new Statements(Arrays.asList(statement1, statement2));
+        assertTrue(statementsWithList.isStatements());
+
+        // Test constructor with single statement and statements array
+        Statements statementsWithStatementArray = new Statements(statement1, statement2);
+        assertTrue(statementsWithStatementArray.isStatements());
+
+        // Test IllegalArgumentException
+        List<Statement> statements = Collections.singletonList(statement1);
+        assertThrows(IllegalArgumentException.class, () -> new Statements(statements));
+        assertThrows(IllegalArgumentException.class, () -> new Statements(statement1));
+
+        // Test the accept method with a simple visitor
+        TestVisitor visitor = new TestVisitor();
+        statementsWithStatementArray.accept(visitor);
+        assertEquals(1, visitor.getStatementsCount());
+    }
+}