Method for testing operating system components

• US 7,278,059 B2
• Filed: 02/07/2006
• Issued: 10/02/2007
• Est. Priority Date: 04/10/2003
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Hughes, Bryan William
• Primary Examiner(s): Chu; Gabriel
• Assistant Examiner(s): BONURA, TIMOTHY M
• Application Number:
  US11/349,858
• Publication Number:
  US 20060150025A1
• Time in Patent Office: 602 Days
• Field of Search: 714/37, 714/38, 714/33, 702/120, 702/123, 702/183, 717/124
• US Class Current: 714/38.14
• CPC Class Codes: G06F 11/3676 for coverage analysis

Abstract

A sequential operation system component (e.g., shell) testing method is disclosed that utilizes a set of established user applications to access particular components of an operating system. A set of components of the operating system to be tested are established. Capabilities of a set of applications to access the components is established. The manner in which applications access the components is analyzed to establish classes. Furthermore, parameter sets are identified for each of the classes (e.g., functions). Test cases are created based upon combinations of parameter usages. Test calls are formulated by defining actual values to the parameter usages defined for the test cases.

Claims

1. A method for testing operating system components using a set of application programs in accordance with a test definition, the method comprising the steps of:

(a) determining a set of operating system components to be represented in the test definition;

(b) establishing a set of capabilities of each application program to issue requests to one of the set of operating system components, including for each request a way in which a particular one of the set of operating system components is accessed;

(c) establishing a set of classes for the set of operating system components in accordance with various ways in which the set of application programs access the set of operating system components; and

(d) formulating a set of test calls to be issued by the set of application programs in accordance with the capabilities of each application program, the set of test calls covering the set of operating system components and the set of classes for the set of operating system components established during the establishing steps.

2. The method of claim 1 further comprising the steps of:

(a) opening the set of application programs; and

(b) invoking by the set of application programs the set of test calls on the set of operating system components via an application program interface.

3. The method of claim 2 wherein the opening and invoking steps are performed sequentially with regard to the set of application programs.

4. The method of claim 2 further comprising the step of:

logging a set of results arising from the invoking set of test calls.

5. The method of claim 1, wherein a class of the set of classes corresponds to a function.

6. The method of claim 5 further comprising the step of:

identifying a set of parameters associated with a call to the function.

7. The method of claim 6 further comprising the step of:

formulating test cases for the set of parameters.

8. The method of claim 6 wherein the function is an application program interface method.

9. The method of claim 1 wherein a class of the set of classes corresponds to an application program interface method.

10. The method of claim 1 further comprising the step of:

establishing a set of test cases for a class.

11. The method of claim 1 wherein the set of operating system components are accessed by the set of applications programs via an application program interface.

12. The method of claim 1 further comprising the step of:

selecting a single representative application program for each of the set of classes.

13. The method of claim 1 wherein the set of operating system components comprises an operating system shell component.

14. The method of claim 1 wherein the set of operating system components comprises an operating system sub-component.