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feat(test): Jazzer Fuzz-Tests für Production-Aggregate einführen
Coverage-guided Fuzz-Tests für ProductionOrder, Recipe und Batch. Jeder Test fuzzt create() + zufällige Sequenzen aller Mutations-Methoden, um unbehandelte Exceptions bei beliebigen Inputs aufzudecken. - jazzer-junit 0.24.0 als Test-Dependency - Maven-Profile: -Pfuzz (echtes Fuzzing), -Pfuzz-regression (Crash-Replay) - Surefire: FuzzTests im Default-Lauf ausgeschlossen, reuseForks=false - Makefile: make fuzz, make fuzz/regression, make fuzz/single - .gitignore: .cifuzz-corpus/ ausgeschlossen
This commit is contained in:
Sebastian Frick
parent
74dc9a6981
commit
8a84bf5f25
6 changed files with 312 additions and 1 deletions
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package de.effigenix.domain.production;
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import com.code_intelligence.jazzer.junit.FuzzTest;
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import de.effigenix.shared.common.Result;
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import java.time.LocalDate;
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/**
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* Fuzz test for the Batch aggregate.
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*
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* Exercises plan() with fuzzed drafts, then applies a random sequence of
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* state-mutating operations (startProduction, recordConsumption, complete, cancel).
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* Verifies that no input combination causes an unhandled exception –
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* all invalid inputs must be caught and returned as Result.Failure.
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*
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* Run: make fuzz | make fuzz/single TEST=BatchFuzzTest
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*/
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class BatchFuzzTest {
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@FuzzTest(maxDuration = "5m")
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void fuzzBatch(FuzzedDataProvider data) {
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var draft = new BatchDraft(
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data.consumeString(50),
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data.consumeString(30),
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data.consumeString(20),
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consumeLocalDate(data),
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consumeLocalDate(data)
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);
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BatchNumber batchNumber;
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try {
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batchNumber = BatchNumber.generate(LocalDate.now(), 1);
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} catch (Exception e) {
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return;
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}
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switch (Batch.plan(draft, batchNumber)) {
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case Result.Failure(var err) -> { }
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case Result.Success(var batch) -> {
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int ops = data.consumeInt(1, 10);
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for (int i = 0; i < ops; i++) {
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int op = data.consumeInt(0, 3);
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switch (op) {
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case 0 -> batch.startProduction();
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case 1 -> {
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batch.recordConsumption(new ConsumptionDraft(
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data.consumeString(50),
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data.consumeString(50),
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data.consumeString(30),
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data.consumeString(20)
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));
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}
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case 2 -> {
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batch.complete(new CompleteBatchDraft(
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data.consumeString(30),
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data.consumeString(20),
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data.consumeString(30),
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data.consumeString(20),
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data.consumeString(100)
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));
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}
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case 3 -> batch.cancel(new CancelBatchDraft(data.consumeString(600)));
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}
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}
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}
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}
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}
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private static LocalDate consumeLocalDate(FuzzedDataProvider data) {
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if (data.consumeBoolean()) {
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return null;
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}
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int year = data.consumeInt(1900, 2100);
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int month = data.consumeInt(1, 12);
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int day = data.consumeInt(1, 28);
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return LocalDate.of(year, month, day);
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}
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}
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package de.effigenix.domain.production;
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import com.code_intelligence.jazzer.junit.FuzzTest;
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import de.effigenix.shared.common.Result;
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import java.time.LocalDate;
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/**
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* Fuzz test for the ProductionOrder aggregate.
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*
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* Exercises create() with fuzzed drafts, then applies a random sequence of
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* state-mutating operations (release, startProduction, complete, cancel, reschedule).
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* Verifies that no input combination causes an unhandled exception –
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* all invalid inputs must be caught and returned as Result.Failure.
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*
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* Run: make fuzz | make fuzz/single TEST=ProductionOrderFuzzTest
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*/
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class ProductionOrderFuzzTest {
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@FuzzTest(maxDuration = "5m")
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void fuzzProductionOrder(FuzzedDataProvider data) {
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var draft = new ProductionOrderDraft(
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data.consumeString(50),
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data.consumeString(30),
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data.consumeString(20),
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consumeLocalDate(data),
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data.consumeString(10),
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data.consumeString(100)
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);
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switch (ProductionOrder.create(draft)) {
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case Result.Failure(var err) -> {
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// Invalid draft – expected
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}
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case Result.Success(var order) -> {
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int ops = data.consumeInt(1, 10);
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for (int i = 0; i < ops; i++) {
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int op = data.consumeInt(0, 4);
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switch (op) {
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case 0 -> order.release();
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case 1 -> {
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try {
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order.startProduction(BatchId.of(data.consumeString(50)));
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} catch (Exception ignored) { }
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}
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case 2 -> order.complete();
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case 3 -> order.cancel(data.consumeString(50));
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case 4 -> order.reschedule(consumeLocalDate(data));
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}
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}
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}
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}
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}
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private static LocalDate consumeLocalDate(FuzzedDataProvider data) {
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if (data.consumeBoolean()) {
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return null;
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}
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int year = data.consumeInt(1900, 2100);
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int month = data.consumeInt(1, 12);
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int day = data.consumeInt(1, 28);
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return LocalDate.of(year, month, day);
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}
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}
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@ -0,0 +1,86 @@
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package de.effigenix.domain.production;
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import com.code_intelligence.jazzer.junit.FuzzTest;
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import de.effigenix.shared.common.Result;
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/**
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* Fuzz test for the Recipe aggregate.
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*
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* Exercises create() with fuzzed drafts, then applies a random sequence of
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* state-mutating operations (addIngredient, addProductionStep, removeIngredient,
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* removeProductionStep, activate, archive).
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* Verifies that no input combination causes an unhandled exception –
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* all invalid inputs must be caught and returned as Result.Failure.
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*
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* Run: make fuzz | make fuzz/single TEST=RecipeFuzzTest
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*/
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class RecipeFuzzTest {
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private static final RecipeType[] RECIPE_TYPES = RecipeType.values();
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@FuzzTest(maxDuration = "5m")
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void fuzzRecipe(FuzzedDataProvider data) {
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var draft = new RecipeDraft(
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data.consumeString(200),
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data.consumeInt(0, 100),
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data.consumeBoolean() ? data.pickValue(RECIPE_TYPES) : null,
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data.consumeString(200),
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data.consumeInt(0, 300),
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data.consumeBoolean() ? data.consumeInt(-10, 400) : null,
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data.consumeString(30),
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data.consumeString(20),
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data.consumeString(40)
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);
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switch (Recipe.create(draft)) {
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case Result.Failure(var err) -> { }
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case Result.Success(var recipe) -> {
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int ops = data.consumeInt(1, 12);
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for (int i = 0; i < ops; i++) {
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int op = data.consumeInt(0, 5);
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switch (op) {
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case 0 -> {
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var ingredientDraft = consumeIngredientDraft(data);
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if (ingredientDraft != null) recipe.addIngredient(ingredientDraft);
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}
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case 1 -> {
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recipe.addProductionStep(new ProductionStepDraft(
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data.consumeInt(), data.consumeString(100),
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data.consumeBoolean() ? data.consumeInt() : null,
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data.consumeBoolean() ? data.consumeInt() : null
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));
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}
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case 2 -> recipe.activate();
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case 3 -> recipe.archive();
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case 4 -> {
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if (!recipe.ingredients().isEmpty()) {
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recipe.removeIngredient(recipe.ingredients().getFirst().id());
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}
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}
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case 5 -> {
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if (!recipe.productionSteps().isEmpty()) {
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recipe.removeProductionStep(recipe.productionSteps().getFirst().stepNumber());
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}
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}
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}
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}
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}
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}
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}
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private static IngredientDraft consumeIngredientDraft(FuzzedDataProvider data) {
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try {
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return new IngredientDraft(
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data.consumeInt(),
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data.consumeString(50),
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data.consumeString(30),
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data.consumeString(20),
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data.consumeBoolean() ? data.consumeString(40) : null,
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data.consumeBoolean()
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);
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} catch (IllegalArgumentException e) {
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return null;
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}
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}
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}
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