测试知识问与答第六期
1,313 Views『作者：RickyZhu 转载务必注明出处和作者』
Tag:testing
Q: What is the purpose of test strategy?
A: Reason number 1: The number one reason of writing a test strategy document is to “have” a signed, sealed, and delivered, FDA (or FAA) approved document, where the document includes a written testing methodology, test plan, and test cases.
Reason number 2: Having a test strategy does satisfy one important step in the software testing process.
Reason number 3: The test strategy document tells us how the software product will be tested.
Reason number 4: The creation of a test strategy document presents an opportunity to review the test plan with the project team.
Reason number 5: The test strategy document describes the roles, responsibilities, and the resources required for the test and schedule constraints.
Reason number 6: When we create a test strategy document, we have to put into writing any testing issues requiring resolution (and usually this means additional negotiation at the project management level).
Reason number 7: The test strategy is decided first, before lower level decisions are made on the test plan, test design, and other testing issues.
Q: What is the purpose of a test plan?
A: Reason number 1: We create a test plan because preparing it helps us to think through the efforts needed to validate the acceptability of a software product.
Reason number 2: We create a test plan because it can and will help people outside the test group to understand the why and how of product validation.
Reason number 3: We create a test plan because, in regulated environments, we have to have a written test plan.
Reason number 4: We create a test plan because the general testing process includes the creation of a test plan.
Reason number 5: We create a test plan because we want a document that describes the objectives, scope, approach and focus of the software testing effort.
Reason number 6: We create a test plan because it includes test cases, conditions, the test environment, a list of related tasks, pass/fail criteria, and risk assessment.
Reason number 7: We create test plan because one of the outputs for creating a test strategy is an approved and signed off test plan document.
Reason number 8: We create a test plan because the software testing methodology a three step process, and one of the steps is the creation of a test plan.
Reason number 9: We create a test plan because we want an opportunity to review the test plan with the project team.
Reason number 10: We create a test plan document because test plans should be documented, so that they are repeatable.
Q: Give me one test case that catches all the bugs!
A: If there is a “magic bullet”, i.e. the one test case that has a good possibility to catch ALL the bugs, or at least the most important bugs, it is a challenge to find it, because test cases depend on requirements; requirements depend on what customers need; and customers can have great many different needs.
As software systems are getting increasingly complex, it is increasingly more challenging to write test cases.
