Graph Based Coverage Pdf Structural coverage criteria : defined on a graph just in terms of nodes and edges data flow coverage criteria : requires a graph to be annotated with references to variables. The first (and simplest) two criteria require that each node and edge in a graph be executed node coverage (nc) : test set t satisfies node coverage on graph g iff for every syntactically reachable node n in n, there is some path p in path(t) such that p visits n.
Overview Graph Coverage Criteria A location in a graph (node or edge) can be reached from another location if there is a sequence of edges from the first location to the secondlocation to the second. Edge pair coverage (epc) : tr contains each reachable path of length up to 2, inclusive, in g. the “length up to 2” is used to include graphs that have less than 2 edges. • given a set tr of test requirements for a criterion c, a set of tests t satisfies c on a graph if and only if for every test requirement in tr, there is a test path in path(t) that meets the test requirement tr. This document discusses graph coverage criteria for software testing. it defines graphs, paths, and coverage terms used for modeling software structures. the key structural coverage criteria are node coverage, edge coverage, edge pair coverage, and prime path coverage.
Overview Graph Coverage Criteria Introduction To Software Testing • given a set tr of test requirements for a criterion c, a set of tests t satisfies c on a graph if and only if for every test requirement in tr, there is a test path in path(t) that meets the test requirement tr. This document discusses graph coverage criteria for software testing. it defines graphs, paths, and coverage terms used for modeling software structures. the key structural coverage criteria are node coverage, edge coverage, edge pair coverage, and prime path coverage. For each predicate p ∈ p, test requirements in general active clause coverage (gacc) are pairs of (1) conditions that make each selected major clause c ∈ cp determine p and (2) the truth or falsity of p. All uses coverage (auc) : for each set of du paths to uses s = du (ni, nj, v), tr contains at least one path d in s. all du paths coverage (adupc) : for each set s = du (ni, nj, v), tr contains every path d in s. This chapter introduces the major test coverage criteria in use today. it starts out in a very theoretical way, but a firm grasp of the theoretical aspects of graphs and graph coverage makes the remainder of the chapter simpler. In general, for any graph based coverage criterion, the idea is to identify the test requirements in terms of various structures in the graph. for graphs, coverage criteria define test requirements, t r, in terms of properties of test paths in a graph g.
Overview Graph Coverage Criteria Introduction To Software Testing For each predicate p ∈ p, test requirements in general active clause coverage (gacc) are pairs of (1) conditions that make each selected major clause c ∈ cp determine p and (2) the truth or falsity of p. All uses coverage (auc) : for each set of du paths to uses s = du (ni, nj, v), tr contains at least one path d in s. all du paths coverage (adupc) : for each set s = du (ni, nj, v), tr contains every path d in s. This chapter introduces the major test coverage criteria in use today. it starts out in a very theoretical way, but a firm grasp of the theoretical aspects of graphs and graph coverage makes the remainder of the chapter simpler. In general, for any graph based coverage criterion, the idea is to identify the test requirements in terms of various structures in the graph. for graphs, coverage criteria define test requirements, t r, in terms of properties of test paths in a graph g.
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