wehub-resource-sync
35 lines
842 B
Go
35 lines
842 B
Go
package storage
|
|
|
|
import (
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestUniqueFilename(t *testing.T) {
|
|
now := time.Now()
|
|
|
|
name := uniqueFilename(now, ".jpg")
|
|
if !strings.HasSuffix(name, ".jpg") {
|
|
t.Errorf("uniqueFilename should preserve extension, got %q", name)
|
|
}
|
|
if !strings.Contains(name, "-") {
|
|
t.Errorf("uniqueFilename should contain random separator, got %q", name)
|
|
}
|
|
|
|
// 同一时刻多次生成应彼此不同（随机后缀防冲突）
|
|
seen := make(map[string]struct{}, 100)
|
|
for i := 0; i < 100; i++ {
|
|
seen[uniqueFilename(now, ".jpg")] = struct{}{}
|
|
}
|
|
if len(seen) < 99 {
|
|
t.Errorf("expected near-100%% uniqueness, got %d distinct out of 100", len(seen))
|
|
}
|
|
|
|
// 空扩展名也应可用
|
|
nameNoExt := uniqueFilename(now, "")
|
|
if nameNoExt == "" {
|
|
t.Error("uniqueFilename should return non-empty with empty ext")
|
|
}
|
|
}
|