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require 'spec_helper'
require 'mspec/expectations/expectations'
require 'mspec/matchers'
# Adapted from RSpec 1.0.8
describe BeCloseMatcher do
it "matches when actual == expected" do
BeCloseMatcher.new(5.0, 0.5).matches?(5.0).should == true
end
it "matches when actual < (expected + tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(5.49).should == true
end
it "matches when actual > (expected - tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(4.51).should == true
end
it "does not match when actual == (expected + tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(5.5).should == false
end
it "does not match when actual == (expected - tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(4.5).should == false
end
it "does not match when actual < (expected - tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(4.49).should == false
end
it "does not match when actual > (expected + tolerance)" do
BeCloseMatcher.new(5.0, 0.5).matches?(5.51).should == false
end
it "provides a useful failure message" do
matcher = BeCloseMatcher.new(5.0, 0.5)
matcher.matches?(5.5)
matcher.failure_message.should == ["Expected 5.0", "to be within +/- 0.5 of 5.5"]
end
it "provides a useful negative failure message" do
matcher = BeCloseMatcher.new(5.0, 0.5)
matcher.matches?(5.0)
matcher.negative_failure_message.should == ["Expected 5.0", "not to be within +/- 0.5 of 5.0"]
end
end
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