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KotSuite

Note This is a test suite generation tool for Kotlin Android projects.

项目构建

运行根模块下的 fatJar 任务，build/libs/kotsuite-core-fat-xxx.jar 即为我们需要的 KotSuite Core Jar 包。

How to run the program?

  1. Build kotsuite-agent module: it will generate the kotsuite-agent-shadow-1.x-all.jar and put it in libs/cli
  2. Build kotsuite-kotmain module: it will generate the KotMain.class file and put it in libs/cli

How to transform Kotlin source code to bytecode?

# 1. Generate .jar file
kotlinc -include-runtime -d output.jar ./Example.kt

# 2. Move and extract .jar file
cp \
./src/test/targets-resources/src/SimpleClass/output.jar \
./src/test/targets-resources/generated/

jar xf output.jar

About gradle

# Logging options
gradlew build -i

About JaCoCo

# 1. Generate .jar file for target bytecodes
cd example-projects/MyApplication/sootOutput
jar -cvf ../kotsuite/MyApplication.jar *.class com/

# 2. Run the generated .jar file to validate
cd example-projects/MyApplication/sootOutput
java \
-cp "./example-projects/MyApplication/kotsuite/MyApplication.jar;./libs/kotlin-runtime-1.2.71.jar" \
ExampleTest

java \
-cp "./example-projects/MyApplication/sootOutput:./libs/kotlin-runtime-1.2.71.jar:./libs/kotlin-stdlib-1.8.10.jar" \
KotMain

# 3. Generate .exec file
java \
-javaagent:./libs/cli/org.jacoco.agent-0.8.10-runtime.jar=includes=*,destfile=./example-projects/MyApplication/sootOutput/report/jacoco-MyApplication.exec,output=file \
-cp ./example-projects/MyApplication/kotsuite/MyApplication.jar \
ExampleTest

# 4. Generate coverage report
java \
-jar ./libs/cli/org.jacoco.cli-0.8.10-nodeps.jar report \
./example-projects/MyApplication/sootOutput/report/jacoco-MyApplication.exec \
--classfile=./example-projects/MyApplication/sootOutput \
--sourcefile=./example-projects/MyApplication/app/src/main/java \
--html ./example-projects/MyApplication/sootOutput/report/HTML
  1. Generate test class file
  2. Run cmd command to package a jar file
  3. Generate .exec file
  4. Run cmd command to generate HTML report

About java decompiler (fernflower)

java -jar final/classes final/decompiled

How to use kotsuite-1.0-SNAPSHOT.jar

java \
-cp "./build/libs/kotsuite-1.0-SNAPSHOT.jar;./libs/*" \
org.kotsuite.client.MainKt \
--project ".\example-projects\MyApplication" \
--includes "com.example.myapplication.Example&com.example.myapplication.Callee" \
--strategy "random" \
--libs "./libs/"
java \
-jar "./build/libs/kotsuite-1.0-SNAPSHOT.jar" \
--project ".\example-projects\MyApplication" \
--includes "com.example.myapplication.Example&com.example.myapplication.Callee" \
--strategy "random" \
--libs "./libs/"

Data Structure of the Report and Statistic files

Origin Graph

Report

Statistic

Changelog

[1.1.3] - 2023.11.14

  1. 新增：输出测试生成的结果统计
    1. 测试报告：$MODULE_ROOT/kotsuite/$TIMESTAMP/final/report/report_xxx.json
    2. 测试数据统计$MODULE_ROOT/kotsuite/$TIMESTAMP/final/report/statistic_xxx.json
  2. 新增：测试生成时的日志文件
    1. 日志文件：$MODULE_ROOT/kotsuite.log
  3. 变更：测试生成时生成的中间文件和最终文件的路径
    1. 修改为 $MODULE_ROOT/kotsuite/$TIMESTAMP/
  4. 变更：最终输出的测试用例的筛选逻辑
    1. 由「根据覆盖率高低筛选」变为「选择覆盖信息不同的测试用例，去除覆盖信息完全相同的测试用例」
  5. 修复：classpath 过长导致无法创建 Java 进程的问题