Test coverage analyzer
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United States of America Patent
Stats
-
Sep 17, 1991
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Dec 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A test coverage analyzer (computer program) for monitoring the execution of a target program to determine which target program instructions have been executed. The analyzer first executes a portion of the target program in step mode, in which target program instruction are executed one at a time. In step mode, the analyzer maintains data indicating which target program instructions have been executed. When a branch is encountered, the analyzer inserts breakpoints in the target program at the first instructions of the branches that are not taken. When the analyzer determines that the target program instruction being executed has already been executed, it switches to run mode, so that the target program begins executing at its normal running speed. This continues until one of the inserted breakpoints is encountered, at which point the analyzer removes the breakpoint and switches back to step mode.
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