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https://github.com/st-tu-dresden-praktikum/swt23w23
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Add unit tests for InventoryMutateForm using jqwik
This adds the jqwik dependency for property based testing, like Haskell’s QuickCheck.
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3
.gitignore
vendored
3
.gitignore
vendored
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@ -60,3 +60,6 @@ hs_err_*.log
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*.synctex.gz
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*.toc
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*.xdv
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# jqwik
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.jqwik-database
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7
pom.xml
7
pom.xml
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@ -58,6 +58,13 @@ SPDX-FileCopyrightText: 2023 swt23w23
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>net.jqwik</groupId>
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<artifactId>jqwik</artifactId>
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<version>1.8.2</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<repositories>
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@ -0,0 +1,266 @@
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// SPDX-License-Identifier: AGPL-3.0-or-later
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// SPDX-FileCopyrightText: 2024 swt23w23
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package catering.inventory;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.assertj.core.api.Assertions.assertThatThrownBy;
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import static org.salespointframework.core.Currencies.EURO;
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import java.util.Optional;
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import java.util.Set;
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import javax.money.MonetaryAmount;
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import javax.money.NumberValue;
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import org.javamoney.moneta.Money;
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import org.junit.jupiter.api.Test;
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import org.salespointframework.catalog.Product;
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import org.salespointframework.inventory.UniqueInventoryItem;
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import org.salespointframework.quantity.Metric;
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import org.salespointframework.quantity.Quantity;
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import catering.catalog.Consumable;
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import catering.catalog.Rentable;
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import catering.order.OrderType;
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import net.jqwik.api.Arbitraries;
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import net.jqwik.api.Arbitrary;
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import net.jqwik.api.Assume;
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import net.jqwik.api.Combinators;
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import net.jqwik.api.ForAll;
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import net.jqwik.api.Property;
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import net.jqwik.api.Provide;
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import net.jqwik.api.constraints.NotBlank;
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public class InventoryMutateFormUnitTests {
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/*
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* Providers for jqwik
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*/
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@Provide
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Arbitrary<MonetaryAmount> euroMonetaryAmount() {
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return Arbitraries.doubles()
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.filter(amount -> amount >= 0)
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.map(amount -> Money.of(amount, EURO));
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}
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@Provide
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Arbitrary<Optional<MonetaryAmount>> optionalEuroMonetaryAmount() {
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return euroMonetaryAmount().optional();
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}
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@Provide
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Arbitrary<Long> positiveOrZero() {
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return Arbitraries.longs().filter(x -> x >= 0);
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}
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@Provide
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Arbitrary<Consumable> consumable() {
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return Combinators
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.combine(Arbitraries.strings().filter(s -> !s.isBlank()), euroMonetaryAmount(), euroMonetaryAmount(),
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optionalEuroMonetaryAmount(), Arbitraries.subsetOf(OrderType.values()),
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Arbitraries.of(Metric.class))
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.as((name, retailPrice, wholesalePrice, promotionPrice, orderTypes, metric) -> new Consumable(name,
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retailPrice, wholesalePrice, promotionPrice, orderTypes, metric));
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}
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@Provide
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Arbitrary<Rentable> rentable() {
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return Combinators
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.combine(Arbitraries.strings().filter(s -> !s.isBlank()), euroMonetaryAmount(), euroMonetaryAmount(),
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Arbitraries.subsetOf(OrderType.values()),
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Arbitraries.of(Metric.class))
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.as((name, retailPrice, wholesalePrice, orderTypes, metric) -> new Rentable(name, retailPrice,
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wholesalePrice, orderTypes, metric));
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}
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Arbitrary<UniqueInventoryItem> item(Arbitrary<? extends Product> product) {
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return Combinators.combine(product, positiveOrZero())
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.as((prod, qty) -> new UniqueInventoryItem(prod, prod.createQuantity(qty)));
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}
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@Provide
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Arbitrary<UniqueInventoryItem> consumableItem() {
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return item(consumable());
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}
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@Provide
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Arbitrary<UniqueInventoryItem> rentableItem() {
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return item(rentable());
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}
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/*
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* Property-based tests with jqwik
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*/
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@Property
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void property_formToConsumableToFormIsIdentity(@ForAll @NotBlank String name,
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@ForAll("positiveOrZero") long qty,
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@ForAll Metric metric,
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@ForAll("euroMonetaryAmount") MonetaryAmount retailPrice,
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@ForAll("euroMonetaryAmount") MonetaryAmount wholesalePrice,
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@ForAll("optionalEuroMonetaryAmount") Optional<MonetaryAmount> promotionPrice,
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@ForAll Set<OrderType> orderTypes) {
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ConsumableMutateForm form = new ConsumableMutateForm();
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Assume.that(form.supportedMetrics().contains(metric));
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form.setName(name);
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form.setQuantity(qty);
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form.setMetric(metric);
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form.setRetailPrice(retailPrice.getNumber().doubleValueExact());
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form.setWholesalePrice(retailPrice.getNumber().doubleValueExact());
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form.setPromotionPrice(promotionPrice.map(MonetaryAmount::getNumber).map(NumberValue::doubleValueExact));
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form.setOrderTypes(Set.of(OrderType.PARTY_SERVICE));
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Product product = form.toProduct();
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UniqueInventoryItem item = new UniqueInventoryItem(product, product.createQuantity(qty));
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assertThat(ConsumableMutateForm.of(item))
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.usingRecursiveComparison()
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.isEqualTo(form);
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}
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@Property
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void property_formToRentableToFormIsIdentity(@ForAll @NotBlank String name,
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@ForAll("positiveOrZero") long qty,
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@ForAll Metric metric,
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@ForAll("euroMonetaryAmount") MonetaryAmount retailPrice,
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@ForAll("euroMonetaryAmount") MonetaryAmount wholesalePrice,
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@ForAll Set<OrderType> orderTypes) {
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RentableMutateForm form = new RentableMutateForm();
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Assume.that(form.supportedMetrics().contains(metric));
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form.setName(name);
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form.setQuantity(qty);
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form.setMetric(metric);
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form.setRetailPrice(retailPrice.getNumber().doubleValueExact());
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form.setWholesalePrice(retailPrice.getNumber().doubleValueExact());
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form.setOrderTypes(Set.of(OrderType.PARTY_SERVICE));
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Product product = form.toProduct();
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UniqueInventoryItem item = new UniqueInventoryItem(product, product.createQuantity(qty));
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assertThat(RentableMutateForm.of(item))
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.usingRecursiveComparison()
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.isEqualTo(form);
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}
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@Property
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void property_consumableToFormToConsumableIsIdentity(@ForAll("consumableItem") UniqueInventoryItem item) {
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InventoryMutateForm form = InventoryMutateForm.of(item);
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assertThat(form).isInstanceOf(ConsumableMutateForm.class);
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assertThat(form.toProduct())
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.usingRecursiveComparison()
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.ignoringFields("id")
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.isEqualTo(item.getProduct());
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assertThat(form.getQuantity()).isEqualTo(item.getQuantity().getAmount().longValueExact());
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}
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@Property
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void property_rentableToFormToRentableIsIdentity(@ForAll("rentableItem") UniqueInventoryItem item) {
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InventoryMutateForm form = InventoryMutateForm.of(item);
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assertThat(form).isInstanceOf(RentableMutateForm.class);
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assertThat(form.toProduct())
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.usingRecursiveComparison()
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.ignoringFields("id")
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.isEqualTo(item.getProduct());
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assertThat(form.getQuantity()).isEqualTo(item.getQuantity().getAmount().longValueExact());
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}
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@Property
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void property_consumableFormModifiesExistingConsumable(@ForAll("consumableItem") UniqueInventoryItem item,
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@ForAll("consumable") Consumable product) {
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InventoryMutateForm.of(item).modifyProduct(product);
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assertThat(product)
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.usingRecursiveComparison()
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.ignoringFields("id")
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.ignoringFields("metric") // metric can’t be modified (salespoint limitation)
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.isEqualTo(item.getProduct());
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}
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@Property
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void property_rentableFormModifiesExistingConsumable(@ForAll("rentableItem") UniqueInventoryItem item,
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@ForAll("rentable") Rentable product) {
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InventoryMutateForm.of(item).modifyProduct(product);
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assertThat(product)
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.usingRecursiveComparison()
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.ignoringFields("id")
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.ignoringFields("metric") // metric can’t be modified (salespoint limitation)
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.isEqualTo(item.getProduct());
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}
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/*
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* Edge cases with jqwik
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*/
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@Property
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void property_ofIllegal(@ForAll("consumableItem") UniqueInventoryItem consumableItem,
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@ForAll("rentableItem") UniqueInventoryItem rentableItem) {
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assertThatThrownBy(() -> InventoryMutateForm
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.of(new UniqueInventoryItem(new Product("no subclass", Money.of(0.0, EURO)), Quantity.of(1))))
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.isInstanceOf(IllegalArgumentException.class);
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assertThatThrownBy(() -> ConsumableMutateForm.of(rentableItem))
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.isInstanceOf(IllegalArgumentException.class);
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assertThatThrownBy(() -> RentableMutateForm.of(consumableItem))
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.isInstanceOf(IllegalArgumentException.class);
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}
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@Property
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void property_modifyIllegalProduct(@ForAll("consumableItem") UniqueInventoryItem consumableItem,
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@ForAll("rentableItem") UniqueInventoryItem rentableItem,
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@ForAll("consumable") Consumable consumable,
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@ForAll("rentable") Rentable rentable) {
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assertThatThrownBy(() -> InventoryMutateForm.of(rentableItem).modifyProduct(consumable))
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.isInstanceOf(IllegalArgumentException.class);
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assertThatThrownBy(() -> InventoryMutateForm.of(consumableItem).modifyProduct(rentable))
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.isInstanceOf(IllegalArgumentException.class);
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}
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/*
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* JUnit Unit tests
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*/
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@Test
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void toConsumable() {
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ConsumableMutateForm form = new ConsumableMutateForm();
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form.setName("Weißwurst (vegan)");
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form.setQuantity(10L);
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form.setMetric(Metric.UNIT);
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form.setRetailPrice(3.46);
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form.setWholesalePrice(1.50);
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form.setPromotionPrice(Optional.of(3.33));
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form.setOrderTypes(Set.of(OrderType.PARTY_SERVICE));
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assertThat(form.getQuantity()).isEqualTo(10L);
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assertThat(form.toProduct())
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.usingRecursiveComparison()
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.ignoringFields("id")
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.isEqualTo(new Consumable("Weißwurst (vegan)", Money.of(3.46, EURO), Money.of(1.50, EURO),
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Optional.of(Money.of(3.33, EURO)), Set.of(OrderType.PARTY_SERVICE), Metric.UNIT));
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}
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@Test
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void toRentable() {
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RentableMutateForm form = new RentableMutateForm();
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form.setName("Kebab-Drehspieß „Der Gerät“ Alkadur");
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form.setQuantity(3L);
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form.setMetric(Metric.UNIT);
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form.setRetailPrice(20.0);
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form.setWholesalePrice(10000.0);
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form.setOrderTypes(Set.of(OrderType.EVENT_CATERING));
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assertThat(form.getQuantity()).isEqualTo(3L);
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assertThat(form.toProduct())
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.usingRecursiveComparison()
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.ignoringFields("id")
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.isEqualTo(new Rentable("Kebab-Drehspieß „Der Gerät“ Alkadur", Money.of(20.0, EURO),
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Money.of(10000.0, EURO), Set.of(OrderType.EVENT_CATERING), Metric.UNIT));
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}
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@Test
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void forProductType() {
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assertThat(InventoryMutateForm.forProductType(Consumable.class)).isInstanceOf(ConsumableMutateForm.class);
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assertThat(InventoryMutateForm.forProductType(Rentable.class)).isInstanceOf(RentableMutateForm.class);
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assertThatThrownBy(() -> InventoryMutateForm.forProductType(Product.class)).isInstanceOf(IllegalArgumentException.class);
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}
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}
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