describe IncomeTax::Countries::Suriname 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(1, 17)              }
    its(:gross_income) { should be == 10000                        }
    its(:net_income)   { should be == "9411.68".to_d               }
    its(:taxes)        { should be == "588.32".to_d                }
  end

  describe "from gross income of 100000" do
    let(:income)       { 100000                                    }
    its(:rate)         { should be == Rational(149, 482)           }
    its(:gross_income) { should be == 100000                       }
    its(:net_income)   { should be == "69087.92".to_d              }
    its(:taxes)        { should be == "30912.08".to_d              }
  end

  describe "from gross income of 100000000" do
    let(:income)       { 100000000                                 }
    its(:rate)         { should be == Rational(106, 279)           }
    its(:gross_income) { should be == 100000000                    }
    its(:net_income)   { should be == "62007087.92".to_d           }
    its(:taxes)        { should be == "37992912.08".to_d           }
  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(11, 183)            }
    its(:gross_income) { should be == "10639.47826087".to_d        }
    its(:net_income)   { should be == 10000                        }
    its(:taxes)        { should be == "639.47826087".to_d          }
  end

  describe "from net income of 100000" do
    let(:type)         { :net                                      }
    let(:income)       { 100000                                    }
    its(:rate)         { should be == Rational(174, 523)           }
    its(:gross_income) { should be == "149858.193548387096774194".to_d }
    its(:net_income)   { should be == 100000                       }
    its(:taxes)        { should be == "49858.193548387096774194".to_d }
  end

  describe "from net income of 100000000" do
    let(:type)         { :net                                      }
    let(:income)       { 100000000                                 }
    its(:rate)         { should be == Rational(144, 379)           }
    its(:gross_income) { should be == "161278890.451612903225806452".to_d }
    its(:net_income)   { should be == 100000000                    }
    its(:taxes)        { should be == "61278890.451612903225806452".to_d }
  end
end
