The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 2010
Filed:
Apr. 21, 2005
Nikolai Tillman, Redmond, WA (US);
Colin L. Campbell, Seattle, WA (US);
Wolfgang Grieskamp, Redmond, WA (US);
Lev Borisovich Nachmanson, Redmond, WA (US);
Wolfram Schulte, Bellevue, WA (US);
Margus Veanes, Bellevue, WA (US);
Nikolai Tillman, Redmond, WA (US);
Colin L. Campbell, Seattle, WA (US);
Wolfgang Grieskamp, Redmond, WA (US);
Lev Borisovich Nachmanson, Redmond, WA (US);
Wolfram Schulte, Bellevue, WA (US);
Margus Veanes, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques and tools for generating test cases for methods or programs with input preconditions are described. For example, after finding feasible control flow paths for a tested method along with each path's associated input conditions, a new program is created which tests these conditions along with the precondition. By analyzing this new program's control flow graph, a class of test cases is found while avoiding inefficiencies created by doing complete searches of paths through the combined control flow graph of the precondition and the method. Additional efficiencies are introduced by partitioning a control flow graph for the precondition into branched and straight sections.