Edsger W. Dijkstra Quote

Program testing can be a very effective way to show the presence of bugs, but it is hopelessly inadequate for showing their absence.


Compare more succinct phrasings cited above. - The Humble Programmer (1972)


Program testing can be a very effective way to show the presence of bugs, but it is hopelessly inadequate for showing their absence.

Program testing can be a very effective way to show the presence of bugs, but it is hopelessly inadequate for showing their absence.

Program testing can be a very effective way to show the presence of bugs, but it is hopelessly inadequate for showing their absence.

Program testing can be a very effective way to show the presence of bugs, but it is hopelessly inadequate for showing their absence.