Integration testing: top down and bottom up testing
Budget: $30 – $250 USD
Do Individual module testing for: 1, 2, 3, 4:
1 with its stubs: 2 and 3, 2 with its driver: 1, 3 with its driver: 1 and stub: 4, 4 with its driver: 3.
Have separate source codes for each.
Do Integration testing:
for this do Top down testing:
2 drivers and 3 stubs.
And Bottom up testing:
3 (driver of 4) and 1 (driver of 2) will be drivers: 2 drivers.
2 and 4 will be stubs: 2 (stub of 1) and 4 (stub of 3).
3 will be stub of 1.
1 with its stubs: 2 and 3, 2 with its driver: 1, 3 with its driver: 1 and stub: 4, 4 with its driver: 3.
Have separate source codes for each.
Do Integration testing:
for this do Top down testing:
2 drivers and 3 stubs.
And Bottom up testing:
3 (driver of 4) and 1 (driver of 2) will be drivers: 2 drivers.
2 and 4 will be stubs: 2 (stub of 1) and 4 (stub of 3).
3 will be stub of 1.