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- // 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)
-
- tc = []*testCase{
- {"abc123xyz", 0, "", utf8Ellipsis},
- {"abc123xyz", 1, "", utf8Ellipsis},
- {"abc123xyz", 4, "abc", utf8Ellipsis},
- {"啊bc123xyz", 4, "啊bc", utf8Ellipsis},
- {"啊bc123xyz", 6, "啊bc12", utf8Ellipsis},
- {"啊bc", 3, "啊bc", ""},
- {"啊bc", 4, "啊bc", ""},
- {"abc\xef\x03\xfe", 3, "", asciiEllipsis},
- {"abc\xef\x03\xfe", 4, "a", asciiEllipsis},
- {"\xef\x03", 1, "\xef\x03", ""},
- }
- test(tc, SplitStringAtRuneN)
- }
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