Enhance JUnit4 sample tests
Enhance JUnit4 sample tests

git-svn-id: https://svn.apache.org/repos/asf/jakarta/jmeter/trunk@817402 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 69e41fe81430689bf961e9ef2cd788a574cea09d
benbenw/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,etnetera/jmeter,benbenw/jmeter