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class TestTimeRules
# All tests to be imported will be passed to this method after they have been filtered.
#
# Whatever this method returns will be assigned as the rule to be used to work out how
# that test scales from one target to another.
def assign(name, attrs, options={})
:constant
end
# This method will be called to evaluate the result of the rule for the reference target -
# that is the target used when importing an execution time profile.
#
# The rule name can be obtained from attrs["rule"]
def evaluate(name, attrs, options={})
rule = attrs["rule"]
case rule
when :constant
1
else
raise "Rule not implemented - #{rule}"
end
end
# This method will be called for each test to forecast what the time will be for the current
# target, it must return a numeric value in all cases.
#
# The rule name can obtained from attrs["rule"] and the results from the reference target can
# be obtained from attrs["reference"].
#
# The most basic way to forecast (and which could get you pretty far) is simply to ratio the rule
# result for the reference target with the result from the current target, and then multiply
# that by the reference time - an example of this is shown below.
def forecast(name, attrs, options={})
ref = attrs["reference"]
val_for_current_target = evaluate(name, attrs, options)
val_for_reference_target = ref["rule_result"]
ref["time"] * (val_for_current_target / val_for_reference_target.to_f) # Force to a float so the
# result is not an integer
end
end
Version data entries
207 entries across 207 versions & 1 rubygems