How to instantiate a shared resource in JUnit
I noticed that jUnit runs the constructor of my test class for each method being tested. Here's an example:
public class TestTest {
protected BigUglyResource bur;
public TestTest(){
bur=new BigUglyResource();
System.out.println("TestTest()");
}
@Test
public void test1(){
System.out.printf("test1()n");
}
@Test
public void test2(){
System.out.printf("test2()n");
}
@Test
public void test3(){
System.out.printf("test3()n");
}
}
Gives the following result:
TestTest() test1() TestTest() test2() TestTest() test3()
Calling the constructor to BigUglyResource is too time-consuming, I'd prefer to build it only once. I know you can use @BeforeClass to run a method once, but @BeforeClass is only for static methods. Static methods can't access a class property like BigUglyResource in the example above. Other than building a Singleton, what options are there?
Can't you declare the BigUglyResource
static? This is how I normally do it.
private static BigUglyResource bur;
@BeforeClass
public static void before(){
bur=new BigUglyResource();
}
You could make "bur" static:
protected static BigUglyResource bur;
And use @BeforeClass.
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