inspec/test/unit/impact_test.rb

# copyright: 2017, Chef Software Inc.

require "helper"
require "inspec/impact"

describe "Impact" do
  let(:impact) { Inspec::Impact }

  describe "impact from string method" do
    it "returns the proper impact for none string" do
      impact.impact_from_string("none").must_equal 0.0
    end

    it "returns the proper impact for low string" do
      impact.impact_from_string("low").must_equal 0.1
    end

    it "returns the proper impact for medium string" do
      impact.impact_from_string("medium").must_equal 0.4
    end

    it "returns the proper impact for high string" do
      impact.impact_from_string("high").must_equal 0.7
    end

    it "returns the proper impact for critical string" do
      impact.impact_from_string("critical").must_equal 0.9
    end

    it "returns an error for a invalid impact string" do
      e = proc { impact.impact_from_string("fake") }.must_raise(Inspec::ImpactError)
      e.message.must_match "'fake' is not a valid impact name. Valid impact names: none, low, medium, high, critical."
    end
  end

  describe "string from impact method" do
    it "returns the proper impact string for 0.1" do
      impact.string_from_impact(0.1).must_equal "low"
    end

    it "returns the proper impact string for 0.57" do
      impact.string_from_impact(0.57).must_equal "medium"
    end

    it "returns the proper impact string for 0.7" do
      impact.string_from_impact(0.7).must_equal "high"
    end

    it "returns the proper impact string for 1" do
      impact.string_from_impact(1).must_equal "critical"
    end

    it "returns an error for a invalid impact score" do
      e = proc { impact.string_from_impact(99) }.must_raise(Inspec::ImpactError)
      e.message.must_match "'99.0' is not a valid impact score. Valid impact scores: [0.0 - 1.0]."
    end
  end

  describe "is_number? method" do
    it "returns true for int string" do
      impact.is_number?("1").must_equal true
    end

    it "returns true for float string" do
      impact.is_number?("10.99").must_equal true
    end

    it "returns false for char string" do
      impact.is_number?("abc").must_equal false
    end
  end
end