File size: 3,915 Bytes
682b227 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | import { describe, expect, it } from 'vitest';
import {
getRequestUrl,
getRequestMethod,
getRequestBody,
summarizeRequestBody,
formatDiagnosticErrorMessage,
extractJsonRpcMethods
} from '$lib/utils/request-helpers';
describe('getRequestUrl', () => {
it('returns a plain string input as-is', () => {
expect(getRequestUrl('https://example.com/mcp')).toBe('https://example.com/mcp');
});
it('returns href from a URL object', () => {
expect(getRequestUrl(new URL('https://example.com/mcp'))).toBe('https://example.com/mcp');
});
it('returns url from a Request object', () => {
const req = new Request('https://example.com/mcp');
expect(getRequestUrl(req)).toBe('https://example.com/mcp');
});
});
describe('getRequestMethod', () => {
it('prefers method from init', () => {
expect(getRequestMethod('https://example.com', { method: 'POST' })).toBe('POST');
});
it('falls back to Request.method', () => {
const req = new Request('https://example.com', { method: 'PUT' });
expect(getRequestMethod(req)).toBe('PUT');
});
it('falls back to baseInit.method', () => {
expect(getRequestMethod('https://example.com', undefined, { method: 'DELETE' })).toBe('DELETE');
});
it('defaults to GET', () => {
expect(getRequestMethod('https://example.com')).toBe('GET');
});
});
describe('getRequestBody', () => {
it('returns body from init', () => {
expect(getRequestBody('https://example.com', { body: 'payload' })).toBe('payload');
});
it('returns undefined when no body is present', () => {
expect(getRequestBody('https://example.com')).toBeUndefined();
});
});
describe('summarizeRequestBody', () => {
it('returns empty for null', () => {
expect(summarizeRequestBody(null)).toEqual({ kind: 'empty' });
});
it('returns empty for undefined', () => {
expect(summarizeRequestBody(undefined)).toEqual({ kind: 'empty' });
});
it('returns string kind with size', () => {
expect(summarizeRequestBody('hello')).toEqual({ kind: 'string', size: 5 });
});
it('returns blob kind with size', () => {
const blob = new Blob(['abc']);
expect(summarizeRequestBody(blob)).toEqual({ kind: 'blob', size: 3 });
});
it('returns formdata kind', () => {
expect(summarizeRequestBody(new FormData())).toEqual({ kind: 'formdata' });
});
it('returns arraybuffer kind with size', () => {
expect(summarizeRequestBody(new ArrayBuffer(8))).toEqual({ kind: 'arraybuffer', size: 8 });
});
});
describe('formatDiagnosticErrorMessage', () => {
it('appends CORS hint for Failed to fetch', () => {
expect(formatDiagnosticErrorMessage(new TypeError('Failed to fetch'))).toBe(
'Failed to fetch (check CORS?)'
);
});
it('passes through other error messages unchanged', () => {
expect(formatDiagnosticErrorMessage(new Error('timeout'))).toBe('timeout');
});
it('handles non-Error values', () => {
expect(formatDiagnosticErrorMessage('some string')).toBe('some string');
});
});
describe('extractJsonRpcMethods', () => {
it('extracts methods from a JSON-RPC array', () => {
const body = JSON.stringify([
{ jsonrpc: '2.0', id: 1, method: 'initialize' },
{ jsonrpc: '2.0', method: 'notifications/initialized' }
]);
expect(extractJsonRpcMethods(body)).toEqual(['initialize', 'notifications/initialized']);
});
it('extracts method from a single JSON-RPC message', () => {
const body = JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'tools/list' });
expect(extractJsonRpcMethods(body)).toEqual(['tools/list']);
});
it('returns undefined for non-string body', () => {
expect(extractJsonRpcMethods(null)).toBeUndefined();
expect(extractJsonRpcMethods(undefined)).toBeUndefined();
});
it('returns undefined for invalid JSON', () => {
expect(extractJsonRpcMethods('not json')).toBeUndefined();
});
it('returns undefined when no methods found', () => {
expect(extractJsonRpcMethods(JSON.stringify({ foo: 'bar' }))).toBeUndefined();
});
});
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