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70 lines
2.4 KiB
Ruby
70 lines
2.4 KiB
Ruby
require "test_helper"
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class CurrencyNormalizableTest < ActiveSupport::TestCase
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# Create a test class that includes the concern
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class TestClass
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include CurrencyNormalizable
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# Expose private method for testing
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def test_parse_currency(value)
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parse_currency(value)
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end
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end
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setup do
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@parser = TestClass.new
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end
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test "parse_currency normalizes lowercase to uppercase" do
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assert_equal "USD", @parser.test_parse_currency("usd")
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assert_equal "EUR", @parser.test_parse_currency("eur")
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assert_equal "GBP", @parser.test_parse_currency("gbp")
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end
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test "parse_currency handles whitespace" do
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assert_equal "USD", @parser.test_parse_currency(" usd ")
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assert_equal "EUR", @parser.test_parse_currency("\teur\n")
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end
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test "parse_currency returns nil for blank values" do
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assert_nil @parser.test_parse_currency(nil)
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assert_nil @parser.test_parse_currency("")
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assert_nil @parser.test_parse_currency(" ")
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end
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test "parse_currency returns nil for invalid format" do
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assert_nil @parser.test_parse_currency("US") # Too short
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assert_nil @parser.test_parse_currency("USDD") # Too long
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assert_nil @parser.test_parse_currency("123") # Numbers
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assert_nil @parser.test_parse_currency("US1") # Mixed
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end
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test "parse_currency returns nil for XXX (no currency code)" do
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# XXX is ISO 4217 for "no currency" but not valid for monetary operations
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assert_nil @parser.test_parse_currency("XXX")
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assert_nil @parser.test_parse_currency("xxx")
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end
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test "parse_currency returns nil for unknown 3-letter codes" do
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# These are 3 letters but not recognized currencies
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assert_nil @parser.test_parse_currency("ZZZ")
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assert_nil @parser.test_parse_currency("ABC")
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end
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test "parse_currency accepts valid ISO currencies" do
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# Common currencies
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assert_equal "USD", @parser.test_parse_currency("USD")
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assert_equal "EUR", @parser.test_parse_currency("EUR")
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assert_equal "GBP", @parser.test_parse_currency("GBP")
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assert_equal "JPY", @parser.test_parse_currency("JPY")
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assert_equal "CHF", @parser.test_parse_currency("CHF")
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assert_equal "CAD", @parser.test_parse_currency("CAD")
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assert_equal "AUD", @parser.test_parse_currency("AUD")
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# Less common but valid currencies
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assert_equal "PLN", @parser.test_parse_currency("PLN")
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assert_equal "SEK", @parser.test_parse_currency("SEK")
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assert_equal "NOK", @parser.test_parse_currency("NOK")
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end
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end
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