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28 lines
624 B
Go
28 lines
624 B
Go
package db
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import (
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"strings"
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"testing"
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"unicode/utf8"
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)
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func TestTruncateUTF8PreservesValidEncoding(t *testing.T) {
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t.Parallel()
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input := strings.Repeat("额度不足", 400)
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got := truncateUTF8(input, 1000)
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if len(got) > 1000 {
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t.Fatalf("truncated value has %d bytes, want at most 1000", len(got))
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}
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if !utf8.ValidString(got) {
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t.Fatalf("truncated value is not valid UTF-8: %q", got[len(got)-8:])
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}
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}
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func TestTruncateUTF8RepairsInvalidInput(t *testing.T) {
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t.Parallel()
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got := truncateUTF8("bad\xffvalue", 1000)
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if !utf8.ValidString(got) {
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t.Fatalf("repaired value is not valid UTF-8: %q", got)
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}
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}
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