fix: 丢失末尾自带的斜线

#44

src/helpers/combineURL.ts

@@ -1,10 +1,11 @@
 import { isAbsoluteURL } from './isAbsoluteURL';
 
-const combineRE = /(^|[^:])\/{2,}/g;
-const removeRE = /\/$/;
 export function combineURL(baseURL = '', url = ''): string {
   if (isAbsoluteURL(url)) {
     return url;
   }
-  return `${baseURL}/${url}`.replace(combineRE, '$1/').replace(removeRE, '');
+
+  return url
+    ? `${baseURL.replace(/\/+$/, '')}/${url.replace(/^\/+/, '')}`
+    : baseURL;
 }

src/request/transformURL.ts

@@ -5,13 +5,12 @@ import { dynamicURL } from '../helpers/dynamicURL';
 import { AxiosRequestConfig } from '../core/Axios';
 
 export function transformURL(config: AxiosRequestConfig) {
-  const data = isPlainObject(config.data) ? config.data : {};
-
-  let url = config.url ?? '/';
-
-  url = combineURL(config.baseURL ?? '', url);
-  url = dynamicURL(url, config.params, data);
+  let url = combineURL(config.baseURL, config.url);
+  url = dynamicURL(
+    url,
+    config.params,
+    isPlainObject(config.data) ? config.data : {},
+  );
   url = buildURL(url, config.params, config.paramsSerializer);
-
   return url;
 }

test/helpers/combineURL.test.ts

@@ -2,41 +2,27 @@ import { describe, test, expect } from 'vitest';
 import { combineURL } from '@/helpers/combineURL';
 
 describe('src/helpers/combineURL.ts', () => {
-  test('应该支持空参数', () => {
-    expect(combineURL()).toBe('');
-    expect(combineURL('')).toBe('');
-    expect(combineURL(undefined, '')).toBe('');
-  });
-
   test('应该直接返回第一个参数', () => {
     expect(combineURL('http://api.com', '')).toBe('http://api.com');
     expect(combineURL('file://api.com', '')).toBe('file://api.com');
-    expect(combineURL('unknow://api.com', '')).toBe('unknow://api.com');
   });
 
   test('应该直接返回第二个参数', () => {
     expect(combineURL('', 'http://api.com')).toBe('http://api.com');
     expect(combineURL('', 'file://api.com')).toBe('file://api.com');
-    expect(combineURL('', 'unknow://api.com')).toBe('unknow://api.com');
   });
 
   test('应该得到拼接后的结果', () => {
     expect(combineURL('http://api.com', 'test')).toBe('http://api.com/test');
-    expect(combineURL('file://api.com', '/test')).toBe('file://api.com/test');
-    expect(combineURL('unknow://api.com', '/test')).toBe(
-      'unknow://api.com/test',
-    );
+    expect(combineURL('http://api.com/', 'test')).toBe('http://api.com/test');
+    expect(combineURL('http://api.com', '/test')).toBe('http://api.com/test');
+    expect(combineURL('http://api.com/', '/test')).toBe('http://api.com/test');
   });
 
-  test('应该清理多余的斜线', () => {
-    expect(combineURL('//api//', 'test//')).toBe('/api/test');
-    expect(combineURL('//api//', '//test//')).toBe('/api/test');
-    expect(combineURL('////', '')).toBe('');
-    expect(combineURL('', '///')).toBe('');
-    expect(combineURL('http://api.com//', '')).toBe('http://api.com');
-    expect(combineURL('http://api.com/', '/')).toBe('http://api.com');
-    expect(combineURL('http://api.com//', '//test//')).toBe(
-      'http://api.com/test',
-    );
+  test('应该保留末尾自带的斜线', () => {
+    expect(combineURL('http://api.com/', '')).toBe('http://api.com/');
+    expect(combineURL('http://api.com', '/')).toBe('http://api.com/');
+    expect(combineURL('http://api.com/', '/')).toBe('http://api.com/');
+    expect(combineURL('http://api.com', 'test/')).toBe('http://api.com/test/');
   });
 });

test/request/dispatchRequest.test.ts

@@ -65,7 +65,7 @@ describe('src/request/dispatchRequest.ts', () => {
           "adapter": [Function],
           "headers": {},
           "method": "GET",
-          "url": "",
+          "url": "/",
         },
         "request": undefined,
         "response": {
@@ -73,7 +73,7 @@ describe('src/request/dispatchRequest.ts', () => {
             "adapter": [Function],
             "headers": {},
             "method": "GET",
-            "url": "",
+            "url": "/",
           },
           "data": undefined,
           "headers": {},