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36 lines
847 B
Crystal
36 lines
847 B
Crystal
require "../../spec_helper"
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module Ameba::Rule
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describe RandZero do
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subject = RandZero.new
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it "passes if it is not rand(1) or rand(0)" do
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s = Source.new %(
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rand(1.0)
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rand(0.11)
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rand(2)
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)
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subject.catch(s).should be_valid
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end
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it "fails if it is rand(0)" do
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s = Source.new "rand(0)"
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subject.catch(s).should_not be_valid
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end
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it "fails if it is rand(1)" do
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s = Source.new "rand(1)"
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subject.catch(s).should_not be_valid
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end
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it "reports rule, location and a message" do
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s = Source.new "rand(1)", "source.cr"
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subject.catch(s).should_not be_valid
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error = s.errors.first
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error.rule.should_not be_nil
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error.location.to_s.should eq "source.cr:1:1"
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error.message.should eq "rand(1) always returns 0"
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end
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end
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end
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