test-coverage - definição. O que é test-coverage. Significado, conceito
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O que (quem) é test-coverage - definição

PERCENTAGE OF SOME TYPE OF FAULT THAT CAN BE DETECTED DURING THE TEST OF ANY ENGINEERED SYSTEM
Test quality; Test coverage

Test coverage         
<testing> A measure of the proportion of a program exercised by a test suite, usually expressed as a percentage. This will typically involve collecting information about which parts of a program are actually executed when running the test suite in order to identify which branches of {conditional statements} which have been taken. The most basic level of test coverage is {code coverage testing} and the most methodical is path coverage testing. Some intermediate levels of test coverage exist, but are rarely used. The standard Unix tool for measuring test coverage is tcov, which annotates C or Fortran source with the results of a test coverage analysis. GCT is a GNU equivalent. (2001-05-20)
Fault coverage         
Fault coverage refers to the percentage of some type of fault that can be detected during the test of any engineered system. High fault coverage is particularly valuable during manufacturing test, and techniques such as Design For Test (DFT) and automatic test pattern generation are used to increase it.
Test (biology)         
HARD SHELL OF SOME SPHERICAL MARINE ANIMALS, NOTABLY SEA URCHINS AND MICROORGANISMS SUCH AS TESTATE FORAMINIFERANS, RADIOLARIANS, AND TESTATE AMOEBAE
Test (shell); Test (zoology)
In biology, a test is the hard shell of some spherical marine animals, notably sea urchins and microorganisms such as testate foraminiferans, radiolarians, and testate amoebae. The term is also applied to the covering of scale insects.

Wikipédia

Fault coverage

Fault coverage refers to the percentage of some type of fault that can be detected during the test of any engineered system. High fault coverage is particularly valuable during manufacturing test, and techniques such as Design For Test (DFT) and automatic test pattern generation are used to increase it.

In electronics for example, stuck-at fault coverage is measured by sticking each pin of the hardware model at logic '0' and logic '1', respectively, and running the test vectors. If at least one of the outputs differs from what is to be expected, the fault is said to be detected. Conceptually, the total number of simulation runs is twice the number of pins (since each pin is stuck in one of two ways, and both faults should be detected). However, there are many optimizations that can reduce the needed computation. In particular, often many non-interacting faults can be simulated in one run, and each simulation can be terminated as soon as a fault is detected.

A fault coverage test passes when at least a specified percentage of all possible faults can be detected. If it does not pass, at least three options are possible. First, the designer can augment or otherwise improve the vector set, perhaps by using a more effective automatic test pattern generation tool. Second, the circuit may be re-defined for better fault detectibility (improved controllability and observability). Third, the designer may simply accept the lower coverage.

Exemplos do corpo de texto para test-coverage
1. I shall stay well away from the Trent Bridge Test coverage, lest I interfere with England’s chances again.