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import { safeJsRun } from "./safe-js-run";
describe("safe-js-run", () => {
it("should execute basic code with console.log", async () => {
const result = await safeJsRun({ code: "console.log(2 + 3);" });
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [{ type: "data", value: 5 }],
});
});
it("should work with Math API", async () => {
const result = await safeJsRun({ code: "console.log(Math.max(1, 2, 3));" });
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [{ type: "data", value: 3 }],
});
});
it("should work with JSON API", async () => {
const result = await safeJsRun({
code: 'const obj = {name: "test"}; console.log(JSON.stringify(obj));',
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [{ type: "data", value: '{"name":"test"}' }],
});
});
it("should capture multiple console methods", async () => {
const result = await safeJsRun({
code: 'console.log("hello"); console.warn("warning"); console.error("error");',
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(3);
expect(result.logs[0]).toEqual({
type: "log",
args: [{ type: "data", value: "hello" }],
});
expect(result.logs[1]).toEqual({
type: "warn",
args: [{ type: "data", value: "warning" }],
});
expect(result.logs[2]).toEqual({
type: "error",
args: [{ type: "data", value: "error" }],
});
});
it("should capture console.log with multiple arguments", async () => {
const result = await safeJsRun({
code: 'console.log("hello", "world", 42);',
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [
{ type: "data", value: "hello" },
{ type: "data", value: "world" },
{ type: "data", value: 42 },
],
});
});
it("should call onLog callback when provided", async () => {
const onLogSpy = vi.fn();
const result = await safeJsRun({
code: 'console.log("test"); console.warn("warning");',
timeout: 5000,
onLog: onLogSpy,
});
expect(result.success).toBe(true);
expect(onLogSpy).toHaveBeenCalledTimes(2);
expect(onLogSpy).toHaveBeenCalledWith({
type: "log",
args: [{ type: "data", value: "test" }],
});
expect(onLogSpy).toHaveBeenCalledWith({
type: "warn",
args: [{ type: "data", value: "warning" }],
});
});
it("should handle syntax errors", async () => {
const result = await safeJsRun({ code: "console.log(2 +);" });
expect(result.success).toBe(false);
expect(result.error).toContain("Unexpected token");
});
it("should block forbidden keywords", async () => {
const result = await safeJsRun({ code: "window.alert('hack');" });
expect(result.success).toBe(false);
expect(result.error).toContain("Forbidden keyword: 'window'");
});
it("should detect Function constructor", async () => {
const result = await safeJsRun({ code: "new Function('return 1')();" });
expect(result.success).toBe(false);
expect(result.error).toContain("Function constructor");
});
it("should detect infinite loop patterns", async () => {
const result = await safeJsRun({ code: "while(true) {}" });
expect(result.success).toBe(false);
expect(result.error).toContain("Infinite while loop");
});
it("should handle code with no console output", async () => {
const result = await safeJsRun({ code: "const x = 5; const y = 10;" });
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(0);
});
it("should handle different console methods correctly", async () => {
const result = await safeJsRun({
code: 'console.info("info"); console.debug("debug"); console.trace("trace");',
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(3);
expect(result.logs[0]).toEqual({
type: "info",
args: [{ type: "data", value: "info" }],
});
expect(result.logs[1]).toEqual({
type: "debug",
args: [{ type: "data", value: "debug" }],
});
expect(result.logs[2]).toEqual({
type: "trace",
args: [{ type: "data", value: "trace" }],
});
});
it("should handle async/await operations", async () => {
const result = await safeJsRun({
code: `
const delay = (ms) => new Promise(resolve => resolve("completed"));
const result = await delay(10);
console.log("async operation", result);
`,
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [
{ type: "data", value: "async operation" },
{ type: "data", value: "completed" },
],
});
});
it("should handle Promise-based operations", async () => {
const result = await safeJsRun({
code: `
const result = await Promise.resolve(42);
console.log("Promise result:", result);
`,
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "log",
args: [
{ type: "data", value: "Promise result:" },
{ type: "data", value: 42 },
],
});
});
it("should handle async errors properly", async () => {
const result = await safeJsRun({
code: `
try {
await Promise.reject(new Error("async error"));
} catch (error) {
console.error("Caught async error:", error.message);
}
`,
});
expect(result.success).toBe(true);
expect(result.logs).toHaveLength(1);
expect(result.logs[0]).toEqual({
type: "error",
args: [
{ type: "data", value: "Caught async error:" },
{ type: "data", value: "async error" },
],
});
});
it("should handle sequential async operations with delay", async () => {
const result = await safeJsRun({
code: `
async function delay(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
function generateEmployee(id) {
const names = ['Kim Minjun', 'Lee Jisoo', 'Park Hyunwoo'];
const departments = ['Engineering', 'Design', 'Marketing'];
return {
id,
name: names[id - 1],
department: departments[id - 1],
createdAt: Date.now()
};
}
async function processEmployees() {
const employees = [];
console.log("Starting employee processing...");
for (let i = 1; i <= 3; i++) {
console.log(\`[\${i}] Creating employee data...\`);
const employee = generateEmployee(i);
console.log(\`[\${i}] Saving to database...\`);
await delay(50); // 50ms database operation simulation
console.log(\`[\${i}] Employee \${employee.name} saved successfully\`);
employees.push(employee);
}
console.log(\`All \${employees.length} employees processed\`);
return employees;
}
await processEmployees();
`,
timeout: 2000,
});
expect(result.success).toBe(true);
expect(result.logs.length).toBeGreaterThanOrEqual(10);
expect(result.logs[0].args[0].value).toBe(
"Starting employee processing...",
);
expect(result.logs[result.logs.length - 1].args[0].value).toBe(
"All 3 employees processed",
);
// Check that delays actually happened (execution time should be > 150ms)
expect(result.executionTimeMs).toBeGreaterThan(140); // 50ms × 3 + margin
});
it("should demonstrate timeout behavior (test environment limitation)", async () => {
const result = await safeJsRun({
code: `
console.log("Starting operation...");
// In real browser environment, this would trigger timeout
// But in test environment, timeout may not work as expected
await new Promise(() => {});
console.log("This should not appear");
`,
timeout: 100,
});
if (!result.success) {
expect(result.error).toContain("timeout");
} else {
expect(result.success).toBe(true);
expect(result.logs[0].args[0].value).toBe("Starting operation...");
}
});
it("should return value from code", async () => {
const result = await safeJsRun({ code: "return 42;" });
expect(result.success).toBe(true);
expect(result.result).toBe(42);
});
it("should return value from if/else", async () => {
const result = await safeJsRun({
code: "if (1 > 0) return 'ok'; else return 'no';",
});
expect(result.success).toBe(true);
expect(result.result).toBe("ok");
});
it("should have undefined result if no return", async () => {
const result = await safeJsRun({ code: "console.log('hi');" });
expect(result.success).toBe(true);
expect(result.result).toBeUndefined();
});
it("should return value from async function", async () => {
const result = await safeJsRun({
code: `
async function foo() {
await Promise.resolve();
return 123;
}
return await foo();
`,
});
expect(result.success).toBe(true);
expect(result.result).toBe(123);
});
});
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