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78 lines
2.5 KiB
78 lines
2.5 KiB
package idverify
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import "testing"
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func TestValidIdCard(t *testing.T) {
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// 校验位由 MOD 11-2 算出，这几个号码的末位都是按算法推出来的合法值。
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cases := []struct {
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no string
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want bool
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why string
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}{
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{"11010519491231002X", true, "末位 X 的合法号码"},
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{"440301199001011234", true, "普通合法号码（加权和 184，184%%11=8 → 校验码 4）"},
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{"440301199001011239", false, "校验位错误"},
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{"44030119900101123", false, "17 位，一代证不支持"},
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{"4403011990010112349", false, "19 位"},
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{"44030119900101123A", false, "末位非数字非 X"},
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{"4403011990010A1239", false, "中间含字母"},
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{"", false, "空串"},
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}
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for _, c := range cases {
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if got := ValidIdCard(c.no); got != c.want {
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t.Errorf("ValidIdCard(%q) = %v, want %v (%s)", c.no, got, c.want, c.why)
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}
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}
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}
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func TestMaskIdCard(t *testing.T) {
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if got, want := MaskIdCard("440301199001011234"), "4403**********1234"; got != want {
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t.Errorf("MaskIdCard = %q, want %q", got, want)
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}
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// 非 18 位不能把原文漏出去
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if got := MaskIdCard("12345"); got != "*****" {
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t.Errorf("非法长度应全掩码，得到 %q", got)
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}
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}
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func TestHashIdCard(t *testing.T) {
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const no, salt = "440301199001011234", "s3cr3t"
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h1 := HashIdCard(no, salt)
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if len(h1) != 64 {
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t.Fatalf("指纹应为 64 位十六进制，得到 %d 位", len(h1))
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}
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// 同号同盐稳定 —— 否则查重功能失效
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if h1 != HashIdCard(no, salt) {
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t.Error("同一号码+盐两次哈希结果不一致")
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}
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// 大小写归一（末位 x/X 视为同一个号）
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if HashIdCard("11010519491231002x", salt) != HashIdCard("11010519491231002X", salt) {
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t.Error("末位 x/X 应归一为同一指纹")
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}
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// 换盐必须变 —— 保证盐真的参与了计算
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if h1 == HashIdCard(no, "other") {
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t.Error("换盐后指纹未变，盐没生效")
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}
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// 无盐时必须返回空串，绝不退化成裸哈希（裸哈希对身份证号等同明文）
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if HashIdCard(no, "") != "" {
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t.Error("salt 为空时必须返回空串，不得退化为裸哈希")
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}
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}
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func TestGenderFromIdCard(t *testing.T) {
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cases := []struct {
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no string
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want int32
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why string
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}{
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{"440301199001011234", 1, "第17位 3 为奇数 → 男"},
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{"11010519491231002X", 2, "第17位 2 为偶数 → 女"},
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{"12345", 0, "长度不对"},
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{"", 0, "空串"},
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}
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for _, c := range cases {
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if got := GenderFromIdCard(c.no); got != c.want {
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t.Errorf("GenderFromIdCard(%q) = %d, want %d (%s)", c.no, got, c.want, c.why)
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}
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}
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}
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