System and method for representation independent comparison of numerical data according to user-specified criteria

• US 20040030676A1
• Filed: 08/07/2002
• Published: 02/12/2004
• Est. Priority Date: 08/07/2002
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Wagner, Marcus
• Application Number:
  US10/213,985
• Publication Number:
  US 20040030676A1
• Time in Patent Office: Days
• US Class Current: 707/2
• CPC Class Codes: G06F 11/3688 for test execution, e.g. scheduling of test suites

Abstract

A system, method and computer readable medium for comparing reference data with test data. The method includes allowing a user to specify a reference file and a test file, at least one comment marker for indicating comments, at least one token that separate numbers, at least one criterion for comparing a reference number with a test number and at least one criterion to utilize for comparing a reference number with a test number. Next, the method automatically reads the numerical data in the reference file and the numerical data in the test file in accordance with the comment marker specified by the user and the token specified by the user. Then, the method automatically compares the numerical data in the reference file with the numerical data in the test file in accordance with the at least one criterion for comparing a reference number with a test number.

Claims

1. A method on a computer system for comparing reference data with test data, the method comprising:

allowing a user to specify a reference file including numerical data and a test file including numerical data;

allowing the user to specify at least one comment marker;

allowing the user to specify at least one token that separate numbers;

allowing the user to specify at least one criterion for comparing a reference number with a test number;

allowing the user to specify which of the at least one criterion to utilize for comparing a reference number with a test number;

automatically reading the numerical data in the reference file and the numerical data in the test file in accordance with the at least one comment marker specified by the user and the at least one token specified by the user; and

automatically comparing the numerical data in the reference file with the numerical data in the test file in accordance with the at least one criterion for comparing a reference number with a test number specified by the user.

2. The method of claim 1, wherein the at least one comment marker comprises at least one character indicating that all characters after a comment marker and to the end of the current line are a comment.

3. The method of claim 1, wherein the at least one comment marker comprises at least one character indicating that all characters after the comment marker and to a next comment marker are a comment.

4. The method of claim 1, wherein the at least one token comprises at least one character indicating the end of one number and the beginning of another number.

5. The method of claim 1, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

|T−

R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

6. The method of claim 5, wherein the at least one criterion for comparing a reference number with a test number further comprises:

determining that a reference number is equal to a test number if the following equation is true;

T−

R<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

7. The method of claim 6, wherein the at least one criterion for comparing a reference number with a test number further comprises:

determining that a reference number is equal to a test number if the following equation is true;

R−

T<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

8. The method of claim 7, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

|T−

R|/|R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

9. The method of claim 8, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

(T−

R)/|R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

10. The method of claim 9, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

(R−

T)/|R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

11. A method on a computer system for comparing reference data with test data, the method comprising:

allowing a user to specify a reference file including numerical data and a test file including numerical data;

allowing the user to specify a first set of comment markers;

allowing the user to specify a second set of comment markers;

allowing the user to specify at least one token that separate numbers;

allowing the user to specify at least one criterion for comparing a reference number with a test number;

allowing the user to specify which of the at least one criterion to utilize for comparing a reference number with a test number;

automatically reading the numerical data in the reference file and the numerical data in the test file in accordance with the first set of comment markers specified by the user, the second set of comment markers specified by the user and the at least one token specified by the user; and

automatically comparing the numerical data in the reference file with the numerical data in the test file in accordance with the at least one criterion for comparing a reference number with a test number specified by the user.

12. The method of claim 11, wherein the first set of comment markers and the second set of comment markers comprise at least one character indicating that all characters after a comment marker and to the end of the current line are a comment.

13. The method of claim 11, wherein the first set of comment markers and the second set of comment markers comprise at least one character indicating that all characters after a comment marker and to a next comment marker are a comment.

14. The method of claim 11, wherein the at least one token comprises at least one character indicating the end of one number and the beginning of another number.

15. The method of claim 11, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

|T−

R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.

16. A system for comparing reference data with test data, comprising:

an interface for allowing a user to specify a reference file including numerical data and a test file including numerical data, at least one comment marker, at least one token that separate numbers and at least one criterion for comparing a reference number with a test number and at least one criterion to utilize for comparing a reference number with a test number;

a reader for automatically reading the numerical data in the reference file and the numerical data in the test file in accordance with the at least one comment marker specified by the user and the at least one token specified by the user; and

a comparing module for automatically comparing the numerical data in the reference file with the numerical data in the test file in accordance with the at least one criterion for comparing a reference number with a test number specified by the user.

17. The system of claim 16, wherein the at least one comment marker comprises at least one character indicating that all characters after a comment marker and to the end of the current line are a comment.

18. The system of claim 16, wherein the at least one comment marker comprises at least one character indicating that all characters after the comment marker and to a next comment marker are a comment.

19. The system of claim 16, wherein the at least one token comprises at least one character indicating the end of one number and the beginning of another number.

20. A computer readable medium including computer instructions for comparing reference data with test data, the computer instructions comprising instructions for:

reading user-specified data including a reference file including numerical data, a test file including numerical data, at least one comment marker, at least one token that separate numbers and at least one criterion for comparing a reference number with a test number and at least one criterion to utilize for comparing a reference number with a test number;

automatically reading the numerical data in the reference file and the numerical data in the test file in accordance with the at least one comment marker specified by the user and the at least one token specified by the user; and

automatically comparing the numerical data in the reference file with the numerical data in the test file in accordance with the at least one criterion for comparing a reference number with a test number specified by the user.

21. The computer readable medium of claim 20, wherein the at least one comment marker comprises at least one character indicating that all characters after a comment marker and to the end of the current line are a comment.

22. The computer readable medium of claim 20, wherein the at least one comment marker comprises at least one character indicating that all characters after the comment marker and to a next comment marker are a comment.

23. The computer readable medium of claim 20, wherein the at least one token comprises at least one character indicating the end of one number and the beginning of another number.

24. The computer readable medium of claim 20, wherein the at least one criterion for comparing a reference number with a test number comprises:

determining that a reference number is equal to a test number if the following equation is true;

|T−

R|<

=Threshold Value

wherein R is the reference number, T is the test number and the threshold value is non-negative.