完善AMESim组件界面与仿真求解稳定性

frontend/tests/e2e/parameter-expression.spec.ts

@@ -0,0 +1,42 @@
+import { expect, test } from "@playwright/test";
+
+import { evaluateParameterExpression } from "../../src/parameterExpression";
+
+function expectExpressionValue(expression: string, expected: number) {
+  const result = evaluateParameterExpression(expression);
+  expect(result.ok, result.ok ? undefined : result.message).toBe(true);
+  if (result.ok) {
+    expect(result.value).toBeCloseTo(expected, 10);
+  }
+}
+
+test("安全解析 AMESim 风格的算术、幂与科学计数等式", () => {
+  expectExpressionValue("=3.14*10^2/4", 78.5);
+  expectExpressionValue("(2+3)*4", 20);
+  expectExpressionValue("2^3^2", 512);
+  expectExpressionValue("-2^2", -4);
+  expectExpressionValue("2.5E-3", 0.0025);
+});
+
+test("支持有限的数学常量与白名单函数", () => {
+  expectExpressionValue("sqrt(16)+abs(-2)", 6);
+  expectExpressionValue("sin(pi/2)+ln(e)", 2);
+  expectExpressionValue("max(1, 5, 3)+pow(2, 3)", 13);
+});
+
+test("拒绝除零、非法定义域、未知变量和任意代码", () => {
+  for (const expression of [
+    "1/0",
+    "sqrt(-1)",
+    "unknown+1",
+    "window.alert(1)",
+    "1+*2",
+    "1e309",
+  ]) {
+    const result = evaluateParameterExpression(expression);
+    expect(result.ok, expression).toBe(false);
+    if (!result.ok) {
+      expect(result.message.length).toBeGreaterThan(0);
+    }
+  }
+});