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Coverage Criteria in Software Printing barcode pdf417 in Software Coverage Criteria

Coverage Criteria generate, create pdf417 none with software projects data matrix and [0, 4, 4, 6] are e PDF417 for None nough. This approach, however, is error-prone. The easiest thing to do is to tour the loop [1, 2, 3] only once, which omits the prime paths [2, 3, 1, 2] and [3, 1, 2, 3].

With more complicated graphs, a mechanical approach is needed. We recommend starting with the longest prime paths and extending them to the beginning and end nodes in the graph. For our example, this results in the test path [0, 1, 2, 3, 1, 5, 6].

The test path [0, 1, 2, 3, 1, 5, 6] tours 3 prime paths 25, 27, and 32. The next test path is constructed by extending one of the longest remaining prime paths; we will continue to work backward and choose 30. The resulting test path is [0, 1, 2, 3, 1, 2, 3, 1, 5, 6], which tours 2 prime paths, 28 and 30 (it also tours paths 25 and 27).

The next test path is constructed by using the prime path 26 [0, 1, 5, 6]. This test path tours only maximal prime path 26. Continuing in this fashion yields two more test paths, [0, 4, 6] for prime path 19, and [0, 4, 4, 6] for prime path 14.

The complete set of test paths is then: 1) 2) 3) 4) 5) [0, 1, 2, 3, 1, 5, 6] [0, 1, 2, 3, 1, 2, 3, 1, 5, 6] [0, 1, 5, 6] [0, 4, 6] [0, 4, 4, 6]. This can be used as is , or optimized if the tester desires a smaller test set. It is clear that test path 2 tours the prime paths toured by test path 1, so 1 can be eliminated, leaving the four test paths identi ed informally earlier in this section. Simple algorithms can automate this process.

. EXERCISES Section 2.2.1. 1. Rede ne edge covera ge in the standard way (see the discussion for node coverage). 2.

Rede ne complete path coverage in the standard way (see the discussion for node coverage). 3. Subsumption has a signi cant weakness.

Suppose criterion Cstrong subsumes criterion Cweak and that test set Tstrong satis es Cstrong and test set Tweak satis es Cweak . It is not necessarily the case that Tweak is a subset of Tstrong . It is also not necessarily the case that Tstrong reveals a fault if Tweak reveals a fault.

Explain these facts. 4. Answer questions (a) (d) for the graph de ned by the following sets: N = {1, 2, 3, 4} N0 = {1} N f = {4} E = {(1, 2), (2, 3), (3, 2), (2, 4)}.

Graph Coverage (a) Draw the graph. (b ) List test paths that achieve node coverage, but not edge coverage. (c) List test paths that achieve edge coverage, but not edge Pair coverage.

(d) List test paths that achieve edge pair coverage. 5. Answer questions (a) (g) for the graph de ned by the following sets: N = {1, 2, 3, 4, 5, 6, 7} N0 = {1} N f = {7} E = {(1, 2), (1, 7), (2, 3), (2, 4), (3, 2), (4, 5), (4, 6), (5, 6), (6, 1)} Also consider the following (candidate) test paths: t0 = [1, 2, 4, 5, 6, 1, 7] t1 = [1, 2, 3, 2, 4, 6, 1, 7] (a) Draw the graph.

(b) List the test requirements for edge-pair coverage. (Hint: You should get 12 requirements of length 2). (c) Does the given set of test paths satisfy edge-pair coverage If not, identify what is missing.

(d) Consider the simple path [3, 2, 4, 5, 6] and test path [1, 2, 3, 2, 4, 6, 1, 2, 4, 5, 6, 1, 7]. Does the test path tour the simple path directly With a sidetrip If so, identify the sidetrip. (e) List the test requirements for node coverage, edge coverage, and prime path coverage on the graph.

(f) List test paths that achieve node coverage but not edge coverage on the graph. (g) List test paths that achieve edge coverage but not prime path coverage on the graph. 6.

Answer questions (a) (c) for the graph in Figure 2.2. (a) Enumerate the test requirements for node coverage, edge coverage, and prime path coverage on the graph.

(b) List test paths that achieve node coverage but not edge coverage on the graph. (c) List test paths that achieve edge coverage but not prime path coverage on the graph. 7.

Answer questions (a) (d) for the graph de ned by the following sets: N = {0, 1, 2} N0 = {0} N f = {2} E = {(0, 1), (0, 2), (1, 0), (1, 2), (2, 0)} Also consider the following (candidate) paths: p0 = [0, 1, 2, 0] p1 = [0, 2, 0, 1, 2] p2 = [0, 1, 2, 0, 1, 0, 2] p3 = [1, 2, 0, 2] p4 = [0, 1, 2, 1, 2] (a) Which of the listed paths are test paths Explain the problem with any path that is not a test path..
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