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Merge pull request #2284 from UKGovernmentBEIS/feature/2931-model-csv…
…-financial-values (2931/1) Model a financial value from a csv
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class Import::Csv::Financial | ||
attr_reader :decimal_value, :original_value | ||
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def initialize(value) | ||
@decimal_value = convert_to_decimal(value.to_s) | ||
@original_value = value.to_s | ||
end | ||
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private def convert_to_decimal(value) | ||
return BigDecimal("0") if value.blank? | ||
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begin | ||
converted_value = ConvertFinancialValue.new.convert(value) | ||
rescue ConvertFinancialValue::Error | ||
return nil | ||
end | ||
converted_value | ||
end | ||
end |
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require "rails_helper" | ||
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RSpec.describe Import::Csv::Financial do | ||
describe "#value" do | ||
context "when the value is positive number" do | ||
it "returns a BigDecimal of the number" do | ||
csv_value = "1000.0" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("1_000") | ||
end | ||
end | ||
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context "when the value is negative number" do | ||
it "returns a BigDecimal of the number" do | ||
csv_value = "-1000.0" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("-1_000") | ||
end | ||
end | ||
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context "when the value is zero" do | ||
it "returns a BigDecimal of zero" do | ||
csv_value = "0.0" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("0") | ||
end | ||
end | ||
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context "when the value has financial punctuation" do | ||
it "returns a BigDecimal of the number" do | ||
csv_value = "£1,000,000,000.0" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("1_000_000_000") | ||
end | ||
end | ||
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context "when the value is space" do | ||
it "returns a BigDecimal of zero" do | ||
csv_value = " " | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("0") | ||
end | ||
end | ||
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context "when the value is multiple spaces" do | ||
it "returns a BigDecimal of zero" do | ||
csv_value = " " | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("0") | ||
end | ||
end | ||
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context "when the value is nil" do | ||
it "returns a BigDecimal of zero" do | ||
csv_value = nil | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("0") | ||
end | ||
end | ||
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context "when the value is empty" do | ||
it "returns a BigDecimal of zero" do | ||
csv_value = "" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to eql BigDecimal("0") | ||
end | ||
end | ||
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context "when the value cannot be converted" do | ||
it "returns nil" do | ||
csv_value = "this cannot be converted" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.decimal_value).to be_nil | ||
end | ||
end | ||
end | ||
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describe "#original_value" do | ||
context "when the conversion can take place" do | ||
it "returns the original string from the csv cell" do | ||
csv_value = "1000.0" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.original_value).to eql csv_value | ||
end | ||
end | ||
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context "when the conversion cannot take place" do | ||
it "returns the original string from the csv cell" do | ||
csv_value = "ten thousand pounds" | ||
finance_value = described_class.new(csv_value) | ||
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expect(finance_value.original_value).to eql csv_value | ||
end | ||
end | ||
end | ||
end |