System and method for testing software using data-driven test variations

• US 7,464,297 B2
• Filed: 06/23/2005
• Issued: 12/09/2008
• Est. Priority Date: 06/23/2005
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Robinson, Michael, Potter, Orville Jay IV
• Primary Examiner(s): Beausoliel; Robert
• Assistant Examiner(s): Ehne; Charles
• Application Number:
  US11/165,765
• Publication Number:
  US 20060291398A1
• Time in Patent Office: 1,265 Days
• Field of Search: 714/26, 714/27, 714/28, 714/38
• US Class Current: 714/38.14
• CPC Class Codes: G06F 11/3684 for test design, e.g. generating new test cases
• CPC Class Codes: G06F 11/3688 for test execution, e.g. scheduling of test suites

Abstract

The integrated test framework of the present invention includes a test framework runtime that executes test scripts and that also allows a script to identify a variation tool called a “data provider” that is responsible for providing data to the test framework runtime and controlling the iteration of the runtime through the variations. The script also identifies the type of data set from which the data provider should obtain the data from which the variations are derived and the location of the data set. Multiple variation data providers may be used in conjunction with an adapter layer that coordinates the iteration of each variation data provider and creates an aggregated variation over multiple varying parameters of different scope.

Claims

1. A system for testing a software application comprising:

a processor;

a testing runtime executing on the processor, the testing runtime directing the software application to perform operations based on a test definition and storing results related to performance of operations of the software application;

at least one variation data provider identified by the test definition and executing on the processor, each variation data provider generating a plurality of variations for a predetermined scope from a template and a plurality of values associated with a parameter, the template being a set of operations including the parameter, wherein each variation uses a different one of the plurality of values for the parameter, and wherein the variation data provider supplies the plurality of variations to the testing runtime and the scope of each of the plurality of variations is identified, the scope being used by the system to determine a sequence to run the variations in to ensure that all possible combinations are automatically evaluated.

2. The system of claim 1, wherein the test definition is a test script identifying the software application, the variation data provider and a variation data set containing the plurality of values associated with the parameter.

3. The system of claim 1 further comprising:

a variation data set containing the plurality of values associated with the parameter.

4. The system of claim 1 wherein the template is a set of operations including a first parameter and a second parameter and the plurality of values includes first values associated with the first parameter and second values associated with the second parameter, the test definition further comprising:

a parallel indication to the variation data provider to iterate in parallel through the first values and second values to generate the plurality of variations.

5. The system of claim 1 wherein the template is a set of operations including a first parameter and a second parameter and the plurality of values includes first values associated with the first parameter and second values associated with the second parameter, the test definition further comprising:

a serial indication to the variation data provider to iterate in series through the first values and second values to generate the plurality of variations.

6. The system of claim 1 further comprising:

a variation data set executing on the processor generating the plurality of values associated with the parameter and supplying the values to the variation data provider in response to get next value requests from the variation data provider.

7. The system of claim 3 wherein the variation data set is embedded in the test definition and supplied to the variation data provider by the runtime.

8. The system of claim 1 further comprising:

an adapter layer, executing on the processor, coupling the testing runtime and the variation data provider and causing the runtime to configure the software application to an initial state prior to delivering each variation to the testing runtime.

9. A computer storage medium having computer-executable instructions for performing a method comprising:

a) initializing software on a computer system;

b) initializing a variation data provider;

c) requesting from the variation data provider, a variation comprising at least one operation to be performed by the software, wherein the operation belongs to a predetermined scope of operation, the scope being used in determining the sequence of variations;

d) receiving a variation from the variation data provider, the variation including an initial configuration for the software and a set of one or more operations;

e) configuring the software to the initial configuration;

f) directing the software to perform the set of one or more operations;

g) recording information describing the performance of the software of the set of one or more operations;

h) repeating c) through g) wherein a different variation is received from the variation data provider each time until the variation data provider returns a message indicating there are no further variations.

10. A computer storage medium as defined in claim 9 further comprising computer-executable instructions for performing:

reading a test script identifying the software and the variation data provider to be initialized.

11. A computer storage medium as defined in claim 10 wherein the test script further identifies a variation data set supplying a set of values for varying one or more parameters in a template set of operations in the variation data provider.

12. A computer storage medium as defined in claim 9 wherein the set of one or more operations has a first parameter and the different variations are the set of one or more operation substituting a different value for the first parameter.

13. A computer storage medium as defined in claim 12 wherein the different values for the first parameter are obtained from a variation data set stored in a separate location from the variation data provider.

14. A computer storage medium as defined in claim 12 wherein the different values for the first parameter are obtained from a variation data set embedded in the variation data provider.

15. A computer storage medium having computer-executable instructions for performing a method comprising:

a) initializing software on a computer system;

b) initializing a first variation data provider and a second variation data provider and an adapter layer;

c) identifying the scope of each variation data provider to the adapter layer;

d) requesting from the adapter layer, a variation comprising at least one operation to be performed by the software;

e) receiving a variation from the adapter layer, the variation including an initial configuration for the software and a set of one or more operations, wherein a first value in the set of one or more operations is provided by the first variation data provider and a second value in the set of one or more operations is provided by the second variation data provider;

f) configuring the software to the initial configuration;

g) directing the software to perform the set of one or more operations;

h) recording information describing the performance of the software of the set of one or more operations;

i) repeating d) through h) wherein a different variation is received from the adapter layer each time until the variation data provider returns a message indicating there are no further variations.

16. A computer storage medium as defined in claim 15 wherein the set of one or more operations has a first parameter associated with a first variation data provider and a second parameter associated with a second variation data provider and wherein the different variations are the set of one or more operations substituting a different value for at least one of the first parameter and the second parameter and further comprising computer-executable instructions for performing:

evaluating by the adapter layer, the scope of each variation data provider;

determining, based on the scope, what sequence to vary the values for the at least one of the first parameter and the second parameter; and

monitoring the sequence to determine a next variation.

17. A computer storage medium as defined in claim 15 further comprising computer-executable instructions for performing:

reading a test script, the test script identifying the software, the first variation data provider, and the second variation data provider to be initialized and associating a first scope with the first variation data provider and a second scope with the second variation data provider.

18. A computer storage medium having computer-executable instructions for performing a method comprising:

receiving a request for a variation from a testing runtime executing a test script directing the testing of a software application;

delivering to the testing runtime, in response to the request, a revert command, directing the testing runtime to configure the software application to the initial configuration;

storing a template set of operations, the template set of operations including one or more operations to be performed by the software application, at least one operation having a parameter requiring a value;

generating one or more variations based on the template set of operations by obtaining a next value from a variation data set and using the next value as the parameter, each variation relates to a predetermined scope wherein at least two or more scopes are a part of a hierarchical organization, wherein the predetermined scope comprises one of a Global scope, a Suite scope, a Class scope, and a Method scope;

delivering to the testing runtime, in response to the request, the variation to the testing runtime; and

executing each variation, wherein for each iteration of a variation related to an outer scope all inner scope variations are executed.

19. A computer storage medium as defined in claim 18 further comprising computer-executable instructions for performing:

storing an identification of the variation data set containing values associated with a parameter and an initial configuration for the software application.

20. A computer storage medium as defined in claim 18 wherein the template set of operations has more than one parameter and the variation data set includes a set of values associated with each parameter and wherein generating a variation further comprises:

determining which value to use for each parameter based on previous variations delivered to the testing runtime, an iteration identifier, and a scope associated with each parameter.