@Test
public void canPushString() {
final String value1 = "first";
testStrQueue.push(value1);
final String value2 = testStrQueue.getHead();
assertEquals(value1, value2);
}
@Test
public void checkHeadFromEmptyQueue() {
final String value1 = testStrQueue.getHead();
assertEquals(null, value1);
}
@Test(expected = Exception.class)
public void cantFindElement() throws Exception {
testStrQueue.push("first");
testStrQueue.findElement("second");
}