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2 results

  • 6 - Branch Coverage

  • Ralf Bierig, Maynooth University, Ireland, Stephen Brown, Maynooth University, Ireland, Edgar Galván, Maynooth University, Ireland, Joe Timoney, Maynooth University, Ireland
  • Book:
    Essentials of Software Testing
    Published online:
    19 August 2021
    Print publication:
    19 August 2021, pp 99-112

  • Summary

    There is a subtle distinction between statements in a program, and the branches between those statements. Even with full statement coverage, faults may remain. This chapter presented shows how to identify branches in the code that have not been taken during testing, and how to develop additional tests to ensure that they produce the correct results when they are taken.

  • Ordinary Singularities of Algebraic Curves

  • Ferruccio Orecchia
  • Journal:
    Canadian Mathematical Bulletin / Volume 24 / Issue 4 / 01 December 1981
    Published online by Cambridge University Press:
    20 November 2018, pp. 423-431
    Print publication:
    01 December 1981
    • Article
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  • Let A be the local ring at a singular point p of an algebraic reduced curve. Let M (resp. Ml,..., Mh) be the maximal ideal of A (resp. of Ā). In this paper we want to classify ordinary singularities p with reduced tangent cone: Spec(G(A)). We prove that G(A) is reduced if and only if: p is an ordinary singularity, and the vector spaces span the vector space . If the points of the projectivized tangent cone Proj(G(A)) are in generic position then p is an ordinary singularity if and only if G(A) is reduced. We give an example which shows that the preceding equivalence is not true in general.