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suixinkanTests/RealNameAuthViewModelTests.swift

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+//
+//  RealNameAuthViewModelTests.swift
+//  suixinkanTests
+//
+
+import XCTest
+@testable import suixinkan
+
+/// 实名认证 ViewModel 测试。
+final class RealNameAuthViewModelTests: XCTestCase {
+    func testValidationRequiresSmsCodeWhenNotVerified() {
+        let viewModel = RealNameAuthViewModel()
+        viewModel.updateRealName("张三")
+        viewModel.updateIdCardNo("11010519491231002X")
+
+        XCTAssertEqual(viewModel.validationMessage, "请输入短信验证码")
+    }
+
+    func testIsValidMainlandIDCardNumberChecksChecksum() {
+        XCTAssertTrue(RealNameAuthViewModel.isValidMainlandIDCardNumber("11010519491231002X"))
+        XCTAssertFalse(RealNameAuthViewModel.isValidMainlandIDCardNumber("123"))
+    }
+
+    func testNormalizedIDCardNumberUppercasesSuffix() {
+        XCTAssertEqual(
+            RealNameAuthViewModel.normalizedIDCardNumber("11010519491231002x"),
+            "11010519491231002X"
+        )
+    }
+}