describe IncomeTax::Countries::CookIslands do
  subject(:result) { described_class.new(income: income, income_type: type) }
  let(:type) { :gross }

  describe "from gross income of 0" do
    let(:income)       { 0                                         }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 0                            }
    its(:net_income)   { should be == 0                            }
    its(:taxes)        { should be == 0                            }
  end

  describe "from gross income of 1000" do
    let(:income)       { 1000                                      }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 1000                         }
    its(:net_income)   { should be == 1000                         }
    its(:taxes)        { should be == 0                            }
  end

  describe "from gross income of 10000" do
    let(:income)       { 10000                                     }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 10000                        }
    its(:net_income)   { should be == 10000                        }
    its(:taxes)        { should be == 0                            }
  end

  describe "from gross income of 100000" do
    let(:income)       { 100000                                    }
    its(:rate)         { should be == Rational(57, 245)            }
    its(:gross_income) { should be == 100000                       }
    its(:net_income)   { should be == 76735                        }
    its(:taxes)        { should be == 23265                        }
  end

  describe "from gross income of 100000000" do
    let(:income)       { 100000000                                 }
    its(:rate)         { should be == Rational(389, 1297)          }
    its(:gross_income) { should be == 100000000                    }
    its(:net_income)   { should be == 70006735                     }
    its(:taxes)        { should be == 29993265                     }
  end

  describe "from net income of 0" do
    let(:type)         { :net                                      }
    let(:income)       { 0                                         }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 0                            }
    its(:net_income)   { should be == 0                            }
    its(:taxes)        { should be == 0                            }
  end

  describe "from net income of 1000" do
    let(:type)         { :net                                      }
    let(:income)       { 1000                                      }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 1000                         }
    its(:net_income)   { should be == 1000                         }
    its(:taxes)        { should be == 0                            }
  end

  describe "from net income of 10000" do
    let(:type)         { :net                                      }
    let(:income)       { 10000                                     }
    its(:rate)         { should be == Rational(0, 1)               }
    its(:gross_income) { should be == 10000                        }
    its(:net_income)   { should be == 10000                        }
    its(:taxes)        { should be == 0                            }
  end

  describe "from net income of 100000" do
    let(:type)         { :net                                      }
    let(:income)       { 100000                                    }
    its(:rate)         { should be == Rational(112, 449)           }
    its(:gross_income) { should be == "133235.71428571429".to_d    }
    its(:net_income)   { should be == 100000                       }
    its(:taxes)        { should be == "33235.714285714286".to_d    }
  end

  describe "from net income of 100000000" do
    let(:type)         { :net                                      }
    let(:income)       { 100000000                                 }
    its(:rate)         { should be == Rational(527, 1757)          }
    its(:gross_income) { should be == "142847521.428571429".to_d   }
    its(:net_income)   { should be == 100000000                    }
    its(:taxes)        { should be == "42847521.4285714286".to_d   }
  end
end
