125 lines
3.8 KiB
TypeScript
125 lines
3.8 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import {
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getRequestUrl,
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getRequestMethod,
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getRequestBody,
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summarizeRequestBody,
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formatDiagnosticErrorMessage,
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extractJsonRpcMethods
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} from '$lib/utils/request-helpers';
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describe('getRequestUrl', () => {
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it('returns a plain string input as-is', () => {
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expect(getRequestUrl('https://example.com/mcp')).toBe('https://example.com/mcp');
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});
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it('returns href from a URL object', () => {
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expect(getRequestUrl(new URL('https://example.com/mcp'))).toBe('https://example.com/mcp');
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});
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it('returns url from a Request object', () => {
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const req = new Request('https://example.com/mcp');
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expect(getRequestUrl(req)).toBe('https://example.com/mcp');
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});
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});
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describe('getRequestMethod', () => {
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it('prefers method from init', () => {
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expect(getRequestMethod('https://example.com', { method: 'POST' })).toBe('POST');
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});
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it('falls back to Request.method', () => {
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const req = new Request('https://example.com', { method: 'PUT' });
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expect(getRequestMethod(req)).toBe('PUT');
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});
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it('falls back to baseInit.method', () => {
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expect(getRequestMethod('https://example.com', undefined, { method: 'DELETE' })).toBe('DELETE');
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});
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it('defaults to GET', () => {
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expect(getRequestMethod('https://example.com')).toBe('GET');
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});
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});
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describe('getRequestBody', () => {
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it('returns body from init', () => {
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expect(getRequestBody('https://example.com', { body: 'payload' })).toBe('payload');
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});
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it('returns undefined when no body is present', () => {
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expect(getRequestBody('https://example.com')).toBeUndefined();
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});
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});
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describe('summarizeRequestBody', () => {
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it('returns empty for null', () => {
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expect(summarizeRequestBody(null)).toEqual({ kind: 'empty' });
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});
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it('returns empty for undefined', () => {
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expect(summarizeRequestBody(undefined)).toEqual({ kind: 'empty' });
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});
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it('returns string kind with size', () => {
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expect(summarizeRequestBody('hello')).toEqual({ kind: 'string', size: 5 });
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});
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it('returns blob kind with size', () => {
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const blob = new Blob(['abc']);
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expect(summarizeRequestBody(blob)).toEqual({ kind: 'blob', size: 3 });
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});
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it('returns formdata kind', () => {
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expect(summarizeRequestBody(new FormData())).toEqual({ kind: 'formdata' });
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});
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it('returns arraybuffer kind with size', () => {
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expect(summarizeRequestBody(new ArrayBuffer(8))).toEqual({ kind: 'arraybuffer', size: 8 });
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});
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});
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describe('formatDiagnosticErrorMessage', () => {
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it('appends CORS hint for Failed to fetch', () => {
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expect(formatDiagnosticErrorMessage(new TypeError('Failed to fetch'))).toBe(
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'Failed to fetch (check CORS?)'
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);
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});
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it('passes through other error messages unchanged', () => {
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expect(formatDiagnosticErrorMessage(new Error('timeout'))).toBe('timeout');
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});
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it('handles non-Error values', () => {
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expect(formatDiagnosticErrorMessage('some string')).toBe('some string');
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});
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});
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describe('extractJsonRpcMethods', () => {
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it('extracts methods from a JSON-RPC array', () => {
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const body = JSON.stringify([
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{ jsonrpc: '2.0', id: 1, method: 'initialize' },
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{ jsonrpc: '2.0', method: 'notifications/initialized' }
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]);
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expect(extractJsonRpcMethods(body)).toEqual(['initialize', 'notifications/initialized']);
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});
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it('extracts method from a single JSON-RPC message', () => {
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const body = JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'tools/list' });
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expect(extractJsonRpcMethods(body)).toEqual(['tools/list']);
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});
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it('returns undefined for non-string body', () => {
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expect(extractJsonRpcMethods(null)).toBeUndefined();
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expect(extractJsonRpcMethods(undefined)).toBeUndefined();
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});
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it('returns undefined for invalid JSON', () => {
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expect(extractJsonRpcMethods('not json')).toBeUndefined();
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});
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it('returns undefined when no methods found', () => {
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expect(extractJsonRpcMethods(JSON.stringify({ foo: 'bar' }))).toBeUndefined();
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});
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});
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