发明名称 |
Two pass test case generation using self-modifying instruction replacement |
摘要 |
A test code generation technique that replaces instructions having a machine state dependent result with special redirection instructions provides generation of test code in which state dependent execution choices are made without a state model. Redirection instructions cause execution of a handler than examines the machine state and replaces the redirection instruction with a replacement instruction having a desired result resolved in accordance with the current machine state. The instructions that are replaced may be conditional branch instructions and the result a desired execution path. The examination of the machine state permits determination of a branch condition for the replacement instruction so that the next pass of the test code executes along the desired path. Alternatively, the handler can execute a jump to the branch instruction, causing immediate execution of the desired branch path. The re-direction instructions may be illegal instructions, which cause execution of an interrupt handler that performs the replacement.
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申请公布号 |
US8516229(B2) |
申请公布日期 |
2013.08.20 |
申请号 |
US20100700970 |
申请日期 |
2010.02.05 |
申请人 |
ADIR ALLON;HEROLD BRAD LEE;LUDDEN JOHN MARTIN;MARTIN-DE-NICOLAS PEDRO;MEISSNER CHARLES LEVERETT;SHUREK GIL ELIEZER;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ADIR ALLON;HEROLD BRAD LEE;LUDDEN JOHN MARTIN;MARTIN-DE-NICOLAS PEDRO;MEISSNER CHARLES LEVERETT;SHUREK GIL ELIEZER |
分类号 |
G06F9/44 |
主分类号 |
G06F9/44 |
代理机构 |
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