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49 lines
1.8 KiB
Go
49 lines
1.8 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package gitdiff
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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 TestTryFixTruncatedString(t *testing.T) {
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assert.Equal(t, "", tryFixTruncatedString(""))
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t.Run("UTF8", func(t *testing.T) {
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s := "🌞a🌛"
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assert.Equal(t, s[:1], tryFixTruncatedString(s[:1]))
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assert.Equal(t, s[:2], tryFixTruncatedString(s[:2]))
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assert.Equal(t, s[:3], tryFixTruncatedString(s[:3]))
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assert.Equal(t, "🌞", tryFixTruncatedString(s[:4]))
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assert.Equal(t, "🌞a", tryFixTruncatedString(s[:5]))
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assert.Equal(t, "🌞a", tryFixTruncatedString(s[:6]))
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assert.Equal(t, "🌞a", tryFixTruncatedString(s[:7]))
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assert.Equal(t, "🌞a", tryFixTruncatedString(s[:8]))
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assert.Equal(t, "🌞a🌛", tryFixTruncatedString(s[:9]))
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s = "a🌞🌛"
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assert.Equal(t, "a", tryFixTruncatedString(s[:1]))
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assert.Equal(t, "a", tryFixTruncatedString(s[:2]))
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assert.Equal(t, "a", tryFixTruncatedString(s[:3]))
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assert.Equal(t, "a", tryFixTruncatedString(s[:4]))
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assert.Equal(t, "a🌞", tryFixTruncatedString(s[:5]))
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assert.Equal(t, "a🌞", tryFixTruncatedString(s[:6]))
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})
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t.Run("Non-UTF8", func(t *testing.T) {
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s := "\xff\xee\xff\xeeb\xff\xee\xff\xee"
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assert.Equal(t, "\xff", tryFixTruncatedString(s[:1]))
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assert.Equal(t, "\xff\xee", tryFixTruncatedString(s[:2]))
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assert.Equal(t, "\xff\xee\xff", tryFixTruncatedString(s[:3]))
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assert.Equal(t, "\xff\xee\xff\xee", tryFixTruncatedString(s[:4]))
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assert.Equal(t, "\xff\xee\xff\xeeb", tryFixTruncatedString(s[:5]))
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assert.Equal(t, "\xff\xee\xff\xeeb", tryFixTruncatedString(s[:6]))
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assert.Equal(t, "\xff\xee\xff\xeeb", tryFixTruncatedString(s[:7]))
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assert.Equal(t, "\xff\xee\xff\xeeb", tryFixTruncatedString(s[:8]))
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assert.Equal(t, "\xff\xee\xff\xeeb\xff\xee\xff\xee", tryFixTruncatedString(s[:9]))
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})
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}
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