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roman: add convert to arabic

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This commit is contained in:
vinchent 2024-09-22 21:28:24 +02:00
parent 6da23dc641
commit 715ea6477a
2 changed files with 52 additions and 34 deletions
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4
roman/roman.go
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@ -35,3 +35,7 @@ func ConvertToRoman(arabic int) string {
return converted.String() return converted.String()
} }
func ConvertToArabic(roman string) int {
return 1
}

82
roman/roman_test.go
View File

@ -5,41 +5,42 @@ import (
"testing" "testing"
) )
var cases = []struct {
Arabic int
Roman string
}{
{Arabic: 1, Roman: "I"},
{Arabic: 2, Roman: "II"},
{Arabic: 3, Roman: "III"},
{Arabic: 4, Roman: "IV"},
{Arabic: 5, Roman: "V"},
{Arabic: 6, Roman: "VI"},
{Arabic: 7, Roman: "VII"},
{Arabic: 8, Roman: "VIII"},
{Arabic: 9, Roman: "IX"},
{Arabic: 10, Roman: "X"},
{Arabic: 14, Roman: "XIV"},
{Arabic: 18, Roman: "XVIII"},
{Arabic: 20, Roman: "XX"},
{Arabic: 39, Roman: "XXXIX"},
{Arabic: 40, Roman: "XL"},
{Arabic: 47, Roman: "XLVII"},
{Arabic: 49, Roman: "XLIX"},
{Arabic: 50, Roman: "L"},
{Arabic: 100, Roman: "C"},
{Arabic: 90, Roman: "XC"},
{Arabic: 400, Roman: "CD"},
{Arabic: 500, Roman: "D"},
{Arabic: 900, Roman: "CM"},
{Arabic: 1000, Roman: "M"},
{Arabic: 1984, Roman: "MCMLXXXIV"},
{Arabic: 3999, Roman: "MMMCMXCIX"},
{Arabic: 2014, Roman: "MMXIV"},
{Arabic: 1006, Roman: "MVI"},
{Arabic: 798, Roman: "DCCXCVIII"},
}
func TestRomanNemerals(t *testing.T) { func TestRomanNemerals(t *testing.T) {
cases := []struct {
Arabic int
Roman string
}{
{Arabic: 1, Roman: "I"},
{Arabic: 2, Roman: "II"},
{Arabic: 3, Roman: "III"},
{Arabic: 4, Roman: "IV"},
{Arabic: 5, Roman: "V"},
{Arabic: 6, Roman: "VI"},
{Arabic: 7, Roman: "VII"},
{Arabic: 8, Roman: "VIII"},
{Arabic: 9, Roman: "IX"},
{Arabic: 10, Roman: "X"},
{Arabic: 14, Roman: "XIV"},
{Arabic: 18, Roman: "XVIII"},
{Arabic: 20, Roman: "XX"},
{Arabic: 39, Roman: "XXXIX"},
{Arabic: 40, Roman: "XL"},
{Arabic: 47, Roman: "XLVII"},
{Arabic: 49, Roman: "XLIX"},
{Arabic: 50, Roman: "L"},
{Arabic: 100, Roman: "C"},
{Arabic: 90, Roman: "XC"},
{Arabic: 400, Roman: "CD"},
{Arabic: 500, Roman: "D"},
{Arabic: 900, Roman: "CM"},
{Arabic: 1000, Roman: "M"},
{Arabic: 1984, Roman: "MCMLXXXIV"},
{Arabic: 3999, Roman: "MMMCMXCIX"},
{Arabic: 2014, Roman: "MMXIV"},
{Arabic: 1006, Roman: "MVI"},
{Arabic: 798, Roman: "DCCXCVIII"},
}
for _, test := range cases { for _, test := range cases {
t.Run(fmt.Sprintf("%d gets converted to %q", test.Arabic, test.Roman), func(t *testing.T) { t.Run(fmt.Sprintf("%d gets converted to %q", test.Arabic, test.Roman), func(t *testing.T) {
got := ConvertToRoman(test.Arabic) got := ConvertToRoman(test.Arabic)
@ -51,3 +52,16 @@ func TestRomanNemerals(t *testing.T) {
}) })
} }
} }
func TestConvertingToArabic(t *testing.T) {
for _, test := range cases[:1] {
t.Run(fmt.Sprintf("%q gets converted to %d", test.Roman, test.Arabic), func(t *testing.T) {
got := ConvertToArabic(test.Roman)
want := test.Arabic
if got != want {
t.Errorf("got %d, want %d", got, want)
}
})
}
}