OrderStatus.java

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package com.rbctcsworld.ecommerce.order;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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/**
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 * Order lifecycle as an explicit state machine (stored as VARCHAR, guarded by a DB CHECK constraint).
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 *
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 *   PLACED ──pay──> PAID ──ship──> SHIPPED ──deliver──> DELIVERED ──request return──> RETURN_REQUESTED
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 *     │              │                                     ^                              │      │
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 *     └──cancel──┐   └──cancel (refund)──┐                 └──────── reject return ───────┘      │
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 *                v                       v                                                      approve
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 *            CANCELLED <─────────────────┘                                                (refund)│
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 *                                                                                                  v
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 *                                                                                              RETURNED
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 * Every move not listed in ALLOWED is rejected with 409.
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 */
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public final class OrderStatus {
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    public static final String PLACED = "PLACED";
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    public static final String PAID = "PAID";
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    public static final String SHIPPED = "SHIPPED";
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    public static final String DELIVERED = "DELIVERED";
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    public static final String RETURN_REQUESTED = "RETURN_REQUESTED";
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    public static final String RETURNED = "RETURNED";
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    public static final String CANCELLED = "CANCELLED";
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    public static final List<String> ALL =
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            List.of(PLACED, PAID, SHIPPED, DELIVERED, RETURN_REQUESTED, RETURNED, CANCELLED);
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    public static final Map<String, Set<String>> ALLOWED = Map.of(
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            PLACED, Set.of(PAID, CANCELLED),
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            PAID, Set.of(SHIPPED, CANCELLED),
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            SHIPPED, Set.of(DELIVERED),
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            DELIVERED, Set.of(RETURN_REQUESTED),
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            RETURN_REQUESTED, Set.of(RETURNED, DELIVERED),
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            RETURNED, Set.of(),
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            CANCELLED, Set.of());
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    private OrderStatus() {
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    }
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    public static boolean canMove(String from, String to) {
44 2 1. canMove : replaced boolean return with true for com/rbctcsworld/ecommerce/order/OrderStatus::canMove → KILLED
2. canMove : replaced boolean return with false for com/rbctcsworld/ecommerce/order/OrderStatus::canMove → KILLED
 
        return ALLOWED.getOrDefault(from, Set.of()).contains(to);
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    }
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}

Mutations

44

1.1
Location : canMove
Killed by : com.rbctcsworld.ecommerce.returns.ReturnServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.returns.ReturnServiceTest]/[method:notYetDeliveredCannotBeReturned()] replaced boolean return with true for com/rbctcsworld/ecommerce/order/OrderStatus::canMove → KILLED

2.2
Location : canMove
Killed by : com.rbctcsworld.ecommerce.order.OrderStateMachineTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.order.OrderStateMachineTest]/[method:shipAndDeliverSetTimestampsAndTracking()] replaced boolean return with false for com/rbctcsworld/ecommerce/order/OrderStatus::canMove → KILLED

Active mutators

Tests examined


Report generated by PIT 1.30.0 support