Splitting tests

Tjohei.java

@Test(expected=NullPointerException.class)
public void psmThrowsNullPointerExceptionWhenCopying() {
    Aristo a = new Aristo();
    Runtime r = mock(Runtime.class);
    a.setRuntime(r);
    a.PSMCopy("oldPSM", "newPSM");
}

@Test(expected=IOException.class)
public void psmThrowsIOExceptionWhenExecuting() {
    Aristo a = new Aristo();
    Runtime r = mock(Runtime.class);
    a.setRuntime(r);
    a.PSMCopy("oldPSM", "newPSM");
    verify(r).exec("PSMcopy oldPSM newPSM");
}

private void run(String command) throws IOException {
BufferedReader r = (new BufferedReader(new InputStreamReader(runtime.
exec(command).
getInputStream())));
String l = new String();
while ((l = r.readLine()) != null) {
out.append(l);
}
}