claudeandClaude Sonnet 5
4e2e05c1b9
CI / test (pull_request) Successful in 34s
MinLength/MaxLength measured len(value), so a string of 8 accented characters (9+ bytes) failed MaxLength(8) despite the error message promising "characters". Count with utf8.RuneCountInString so the check matches the wording and the common-sense intent. Still not grapheme-cluster aware (combining marks, emoji ZWJ sequences count as several runes), which is out of scope for a stdlib-only helper. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
package validate
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import (
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"errors"
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"fmt"
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"testing"
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)
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func ExampleMaxLength() {
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testMaxLength := MaxLength(8)
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fmt.Println(testMaxLength("this string is too long"))
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// Output: must contain no more than 8 characters
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}
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func ExampleMinLength() {
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testMinLength := MinLength(8)
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fmt.Println(testMinLength("2short"))
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// Output: must contain at least 8 characters
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}
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func TestMaxLength(t *testing.T) {
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testCases := map[int]map[string]error{
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8: {
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"abcd": nil,
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"abcdefgh": nil,
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"abcd efg": nil,
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"abcdéfgh": nil, // 8 runes, 9 bytes
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"abcdefghi": ErrMustBeShorter.With(8),
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"abcdéfghi": ErrMustBeShorter.With(8), // 9 runes, 10 bytes
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},
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}
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for setup, values := range testCases {
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testMaxLength := MaxLength(setup)
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for input, want := range values {
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t.Run(fmt.Sprintf("%d/%s", setup, input), func(t *testing.T) {
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got := testMaxLength(input)
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if !errors.Is(got, want) {
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t.Error("got", got)
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t.Error("want", want)
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}
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})
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}
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}
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}
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func TestMinLength(t *testing.T) {
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testCases := map[int]map[string]error{
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8: {
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"abcd": ErrMustBeLonger.With(8),
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"abcdéfg": ErrMustBeLonger.With(8), // 7 runes, 8 bytes
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"abcdefgh": nil,
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"abcdéfgh": nil, // 8 runes, 9 bytes
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"abcd efg": nil,
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"abcdefghi": nil,
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},
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}
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for setup, values := range testCases {
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testMinLength := MinLength(setup)
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for input, want := range values {
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t.Run(fmt.Sprintf("%d/%s", setup, input), func(t *testing.T) {
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got := testMinLength(input)
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if !errors.Is(got, want) {
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t.Error("got", got)
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t.Error("want", want)
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}
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})
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}
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}
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}
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