Lecture Notes in Computer Science 3472

514 Zhen Ru Dai
BluetoothUnitTest
SlaveRoamingListTest
testSearchNextElement(): Verdict
testIsNull(): Verdict
sd testSearchNextElement():Verdict
SlaveRoamingListTest
return pass
SlaveRoamingList
(["M1","M2","M3"])
searchNextElement(−):"M1"
(a) Test Package
searchNextElement()
RList:
SlaveRoamingList
SlaveRoamingList([])
(b) Test Scenario
BluetoothRoaming
emptyList:
SlaveRoamingList
Fig. 17.13. JUnit Test Package and Scenario
Mapping to JUnit In the introduced roaming algorithm, the handling of the
slave roaming list plays an important role in order to guarantee the right choice
of the successory master. Therefore, class SlaveRoamingList will be tested. This
class provides the following methods:
• boolean isNull(): checks if the roaming list is empty. True, if the list is empty,
otherwise false.
• String searchNextElement(): looks for the next element in the roaming list.
Method isNull() asks whether or not is the roaming list empty, so that no
alternative new master can be found. In case of being empty, warnings will be
sent to the environment. Method searchNextElement() gives out the name of the
new master.
Figure 17.13 shows the unit test specification with U2TP. Figure 17.13a)
depicts a test package called BluetoothUnitTest. The package imports from the
implementation package of the package BluetoothRoaming, in which the methods
isNull() and searchNextElement() are specified. The test context in the test package
is called SlaveRoamingListTest, which includes two test cases: testSearchNextElement()
and testIsNull(). The names of the tests are similar to the methods which
should be tested. They just begin with the prefix ”test” for a better recognition.