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simple definition with examples
ECP(equivalance class partion) is the part of input domain testing.
in that testing to measure "type" of input object
type of input objects :
a)A-Z AND a-z character
let be take a one example......
A textbox allows 12 digit number alongwith " * "(astrics) as mandatory.sometimes it will allow "_" (blank) also
ans:- the ecp of the above example is
for valid testing it pass for " * " (astrics), " _ " blank and 0-9(digit)
for invalid testing it fail for except " *" (astrics)," _ " blank and 0-9(digit)
thanks & regard