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86 lines
1.1 KiB
86 lines
1.1 KiB
package math
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestParseFraction(t *testing.T) {
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testCases := []struct {
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f string
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exp Fraction
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err bool
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}{
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{
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f: "2/3",
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exp: Fraction{2, 3},
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err: false,
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},
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{
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f: "15/5",
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exp: Fraction{15, 5},
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err: false,
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},
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// test divide by zero error
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{
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f: "2/0",
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exp: Fraction{},
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err: true,
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},
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// test negative
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{
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f: "-1/2",
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exp: Fraction{},
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err: true,
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},
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{
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f: "1/-2",
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exp: Fraction{},
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err: true,
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},
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// test overflow
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{
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f: "9223372036854775808/2",
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exp: Fraction{},
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err: true,
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},
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{
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f: "2/9223372036854775808",
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exp: Fraction{},
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err: true,
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},
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{
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f: "2/3/4",
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exp: Fraction{},
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err: true,
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},
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{
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f: "123",
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exp: Fraction{},
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err: true,
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},
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{
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f: "1a2/4",
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exp: Fraction{},
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err: true,
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},
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{
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f: "1/3bc4",
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exp: Fraction{},
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err: true,
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},
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}
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for idx, tc := range testCases {
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output, err := ParseFraction(tc.f)
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if tc.err {
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assert.Error(t, err, idx)
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} else {
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assert.NoError(t, err, idx)
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}
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assert.Equal(t, tc.exp, output, idx)
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}
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}
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