Group testing modules (#3014)

* move security content from spring-security-rest-full

* swagger update

* move query language to new module

* rename spring-security-rest-full to spring-rest-full

* group persistence modules

* group testing modules

* try fix conflict

testing-modules/junit-5/src/test/java/com/baeldung/AssertionUnitTest.java

@@ -0,0 +1,28 @@
+package com.baeldung;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+public class AssertionUnitTest {
+
+    @Test
+    public void testConvertToDoubleThrowException() {
+        String age = "eighteen";
+        assertThrows(NumberFormatException.class, () -> {
+            convertToInt(age);
+        });
+
+        assertThrows(NumberFormatException.class, () -> {
+            convertToInt(age);
+        });
+    }
+
+    private static Integer convertToInt(String str) {
+        if (str == null) {
+            return null;
+        }
+        return Integer.valueOf(str);
+    }
+
+}