Testing Basics

Transcript

1. SoftwareTesting Basics @sideroad
2. What is Software Testing? Meets the business and technical requirements that guided it’s design and development Works as expected
3. How to keep Quality Effort to prevent to make defects
 Tool (Find bugs,..)
 Knowledge (Design pattern,..)
 Development Process
 Metrics (LOC, CC, ..) Effort to detect a defects
 UnitTest, IntegrationTest, SystemTest, UserAcceptanceTest
4. Testing Design Technique
5. White box testing Control system path testing Data flow testing The tester chooses inputs to exercise paths through the code and determine the appropriate outputs
6. Black box testing Boundary Value Analysis / Equivalence partitioning Factor Analysis / Decision Tables Combinatorial testing ( All-pair, Pair-wise ) Use case testing ( Scenario testing ) Error Guessing
7. BVA / EP Confirm the boundary specification Partitioning and classify ex) The value valid in 0 - 99 0 - 49 : A process 50 - 89 : B process 90 - 99 : Nothing 0, 1, 2, …49 can be think as same classified value for A We don’t need to test every number for A.
8. Let’s think about test case
9. BVA / EP The value close to boundary tend to have a bug. If invalid value have assigned such as -1, what will be happened ? If the value assigned 49.999, what will be happened ? We need to test it. if we want to test for A process. -1 : Should not process as A 0 : Should process as A 49 : Should process as A 50 : Should not process as A A -1 0 49 50