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feat(test): Jazzer Fuzz-Tests für Production-Aggregate einführen

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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 2026-02-26 08:50:02 +01:00
parent 74dc9a6981
commit 8a84bf5f25
6 changed files with 312 additions and 1 deletions
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68
backend/pom.xml
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@ -32,6 +32,7 @@
<jacoco.version>0.8.12</jacoco.version>
<pitest.version>1.17.4</pitest.version>
<pitest-junit5.version>1.2.1</pitest-junit5.version>
<jazzer.version>0.24.0</jazzer.version>
</properties>
<dependencies>
@ -120,6 +121,13 @@
<artifactId>h2</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.code-intelligence</groupId>
<artifactId>jazzer-junit</artifactId>
<version>${jazzer.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
@ -147,6 +155,20 @@
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*FuzzTest.java</exclude>
</excludes>
<!-- -noverify: Jazzer's bytecode instrumentation conflicts with JaCoCo
on Java 21 pattern matching (VerifyError on stack maps).
Safe for test execution. -->
<argLine>-XX:+EnableDynamicAgentLoading -noverify</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
@ -176,6 +198,52 @@
</build>
<profiles>
<profile>
<id>fuzz</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>none</exclude>
</excludes>
<includes>
<include>**/*FuzzTest.java</include>
</includes>
<reuseForks>false</reuseForks>
<argLine>-XX:+EnableDynamicAgentLoading -noverify</argLine>
<environmentVariables>
<JAZZER_FUZZ>1</JAZZER_FUZZ>
</environmentVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>fuzz-regression</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>none</exclude>
</excludes>
<includes>
<include>**/*FuzzTest.java</include>
</includes>
<argLine>-XX:+EnableDynamicAgentLoading -noverify</argLine>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>mutation</id>
<build>