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forgejo/modules/util/truncate_test.go
wxiaoguang 19de52e0f4
Introduce GiteaLocaleNumber custom element to handle number localization on pages. (#23861)
Follow #21429 & #22861

Use `<gitea-locale-number>` instead of backend `PrettyNumber`. All old
`PrettyNumber` related functions are removed. A lot of code could be
simplified.

And some functions haven't been used for long time (dead code), so they
are also removed by the way (eg: `SplitStringAtRuneN`, `Dedent`)

This PR only tries to improve the `PrettyNumber` rendering problem, it
doesn't touch the "plural" problem.

Screenshot:


![image](https://user-images.githubusercontent.com/2114189/229290804-1f63db65-1e34-4a54-84ba-e00b44331b17.png)


![image](https://user-images.githubusercontent.com/2114189/229290911-c88dea00-b11d-48dd-accb-9f52edd73ce4.png)
2023-04-03 12:58:09 -04:00

47 lines
1.3 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package util
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestSplitString(t *testing.T) {
type testCase struct {
input string
n int
leftSub string
ellipsis string
}
test := func(tc []*testCase, f func(input string, n int) (left, right string)) {
for _, c := range tc {
l, r := f(c.input, c.n)
if c.ellipsis != "" {
assert.Equal(t, c.leftSub+c.ellipsis, l, "test split %q at %d, expected leftSub: %q", c.input, c.n, c.leftSub)
assert.Equal(t, c.ellipsis+c.input[len(c.leftSub):], r, "test split %s at %d, expected rightSub: %q", c.input, c.n, c.input[len(c.leftSub):])
} else {
assert.Equal(t, c.leftSub, l, "test split %q at %d, expected leftSub: %q", c.input, c.n, c.leftSub)
assert.Equal(t, "", r, "test split %q at %d, expected rightSub: %q", c.input, c.n, "")
}
}
}
tc := []*testCase{
{"abc123xyz", 0, "", utf8Ellipsis},
{"abc123xyz", 1, "", utf8Ellipsis},
{"abc123xyz", 4, "a", utf8Ellipsis},
{"啊bc123xyz", 4, "", utf8Ellipsis},
{"啊bc123xyz", 6, "啊", utf8Ellipsis},
{"啊bc", 5, "啊bc", ""},
{"啊bc", 6, "啊bc", ""},
{"abc\xef\x03\xfe", 3, "", asciiEllipsis},
{"abc\xef\x03\xfe", 4, "a", asciiEllipsis},
{"\xef\x03", 1, "\xef\x03", ""},
}
test(tc, SplitStringAtByteN)
}