导致此错误的原因:由于对所需库的限制，类型测试不可访问?

**Description** 

Access restriction: The type Test is not accessible due to restriction on required library 

**Resource**

/Applications/Eclipse Java/plugins/org.junit_4.11.0.v201303080030/junit.jar 

**Path**

AdditionTest2.java  

**Location**

/Practice/src/testing   line 5  

**Type**

Java Problem
**Description** 

Access restriction: The type