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Contents
module BeApproximatelyTheSameColorAsMatcher
class BeApproximatelyTheSameColorAs
def initialize(expected)
@expected = expected
end
def matches?(target)
@target = target
@target.rgb.zip(@expected.rgb).all?{|e,t| (e-t).abs <= 1}
end
def failure_message
"expected <#{to_string(@target)}> to " +
"be approximately the same as <#{to_string(@expected)}>"
end
def negative_failure_message
"expected <#{to_string(@target)}> not to " +
"be approximately the same as <#{to_string(@expected)}>"
end
# Returns string representation of an object.
def to_string(value)
# indicate a nil
if value.nil?
'nil'
end
# join arrays
if value.class == Array
return value.join(", ")
end
# otherwise return to_s() instead of inspect()
return value.to_s
end
end
# Actual matcher that is exposed.
def be_approximately_the_same_color_as(expected)
BeApproximatelyTheSameColorAs.new(expected)
end
end
Version data entries
12 entries across 11 versions & 3 rubygems