[BAEL-16005] moved articles from libraries to libraries-security and libraries testing. Renamed TinkUnitTest to TinkLiveTest failing due InvalidKeyException

libraries-testing/src/main/java/com/baeldung/serenity/membership/Member.java

@@ -0,0 +1,38 @@
+package com.baeldung.serenity.membership;
+
+import static com.baeldung.serenity.membership.MemberGrade.Bronze;
+import static com.baeldung.serenity.membership.MemberGrade.Gold;
+import static com.baeldung.serenity.membership.MemberGrade.Silver;
+
+/**
+ * @author aiet
+ */
+public class Member {
+
+    private int points;
+
+    private Member(int points) {
+        if (points < 0)
+            throw new IllegalArgumentException("points must not be negative!");
+        this.points = points;
+
+    }
+
+    public static Member withInitialPoints(int initialPoints) {
+        return new Member(initialPoints);
+    }
+
+    public MemberGrade getGrade() {
+        if (points < 1000)
+            return Bronze;
+        else if (points >= 1000 && points < 5000)
+            return Silver;
+        else
+            return Gold;
+    }
+
+    public void spend(int moneySpent) {
+        points += moneySpent / 10;
+    }
+
+}