JUnit5用户手册~并行执行
两种运行模式
CONCURRENT：并行执行，除非有资源锁
junit-platform.properties配置参数
配置所有测试方法都并行
junit.jupiter.execution.parallel.enabled = true
junit.jupiter.execution.parallel.mode.default = concurrent@Execution(CONCURRENT)指定类或方法并行
配置top-level类并行，测试方法同一线程执行
junit.jupiter.execution.parallel.enabled = true
junit.jupiter.execution.parallel.mode.default = same_thread
junit.jupiter.execution.parallel.mode.classes.default = concurrent配置top-level类串行，测试方法并行
junit.jupiter.execution.parallel.enabled = true
junit.jupiter.execution.parallel.mode.default = concurrent
junit.jupiter.execution.parallel.mode.classes.default = same_thread
相关参数
| 属性 |
描述 |
支持的值 | 默认值 |
|
junit.jupiter.execution.parallel.enabled
|
是否允许并行 |
true false |
false |
|
junit.jupiter.execution.parallel.mode.default
|
test tree的默认执行模式 |
concurrent
same_thread
|
same_thread
|
|
junit.jupiter.execution.parallel.mode.classes.default
|
top-level类的默认执行模式 |
concurrent
same_thread
|
same_thread |
|
junit.jupiter.execution.parallel.config.strategy
|
默认线程和最大线程数的策略 |
dynamic
fixed
custom
|
dynamic
|
|
junit.jupiter.execution.parallel.config.dyna mic.factor
|
dynamic配置的系数 |
数值 | 1 |
|
junit.jupiter.execution.parallel.config.fixed.parallelism
|
fixed配置的线程数 | 数值 | 无默认 |
|
junit.jupiter.execution.parallel.config.custom.class
|
custom配置的策略类 | 类 | 无默认 |
2、同步
@Execution(CONCURRENT)
class SharedResourcesDemo {private Properties backup;@BeforeEachvoid backup() {backup = new Properties();backup.putAll(System.getProperties());}@AfterEachvoid restore() {System.setProperties(backup);}@Test@ResourceLock(value = SYSTEM_PROPERTIES, mode = READ)void customPropertyIsNotSetByDefault() {assertNull(System.getProperty("my.prop"));}@Test@ResourceLock(value = SYSTEM_PROPERTIES, mode = READ_WRITE)void canSetCustomPropertyToApple() {System.setProperty("my.prop", "apple");assertEquals("apple", System.getProperty("my.prop"));}@Test@ResourceLock(value = SYSTEM_PROPERTIES, mode = READ_WRITE)void canSetCustomPropertyToBanana() {System.setProperty("my.prop", "banana");assertEquals("banana", System.getProperty("my.prop"));}
}