class WithinAssay
Public Class Methods
assert_message(subject, criterion, delta)
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Failed assertion message.
# File lib/assay/within_assay.rb, line 26 def self.assert_message(subject, criterion, delta) a = subject.inspect b = criterion.inspect d = delta.inspect if [a, b, d].any?{ |e| e.size > SIZE_LIMIT } "b - d <= a <= b + d\na) #{a}\nb) #{b}\nd) #{d}" else "#{b} - #{d} <= #{a} <= #{b} + #{d}" end end
pass?(subject, criterion, delta)
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Check assertion.
# File lib/assay/within_assay.rb, line 13 def self.pass?(subject, criterion, delta) if [subject, criterion, delta].all?{ |v| Numeric === v } a, b, d = subject.to_f, criterion.to_f, delta.to_f else a, b, d = subject, criterion, delta end (b - d) <= a && (b + d) >= a end