mvp shell

backend/internal/authcode/authcode_test.go

@@ -0,0 +1,42 @@
+package authcode
+
+import (
+	"regexp"
+	"testing"
+)
+
+var formatRE = regexp.MustCompile(`^[0-9A-HJKMNP-TV-Z]{4}-[0-9A-HJKMNP-TV-Z]{4}-[0-9A-HJKMNP-TV-Z]{4}$`)
+
+func TestNewFormat(t *testing.T) {
+	for i := 0; i < 1000; i++ {
+		c := New()
+		if !formatRE.MatchString(c) {
+			t.Fatalf("code %q does not match expected format", c)
+		}
+	}
+}
+
+func TestNewIsRandom(t *testing.T) {
+	seen := make(map[string]bool)
+	for i := 0; i < 1000; i++ {
+		c := New()
+		if seen[c] {
+			t.Fatalf("duplicate code generated: %q", c)
+		}
+		seen[c] = true
+	}
+}
+
+func TestNormalize(t *testing.T) {
+	tests := []struct{ in, want string }{
+		{"abcd-1234-wxyz", "ABCD1234WXYZ"},
+		{" ABCD 1234 WXYZ ", "ABCD1234WXYZ"},
+		{"oiln-uuuu", "011NVVVV"}, // O->0, I->1, L->1, N stays, U->V
+		{"AB-CD", "ABCD"},
+	}
+	for _, tc := range tests {
+		if got := Normalize(tc.in); got != tc.want {
+			t.Errorf("Normalize(%q) = %q, want %q", tc.in, got, tc.want)
+		}
+	}
+}