Allow urls as endpoints (#55)

* Added support for multiple request configurations.

This allows multiple requests to hit the same verb+path combination.
This was previously impossible, to address it, it's now possible to pass
an array of request settings as the body of a request each request will
be added to the request list individually.

Example:
```
GET /some/path:
  - alias: first
    headers:
      request: first
  - alias: second
    headers:
      request: second
```

* Allows using full urls in the request key

This allows you to break out of the top-level endpoint. If you send a
full url instead of a path it'll be used instead of the top level
endpoint.

Example:
```
endpoint: http://example.com
GET /posts: get-posts
POST http://api.example.com/posts: post-post
```

src/__tests__/request.spec.js

@@ -73,4 +73,28 @@ describe('Request', () => {
         requestPromiseNativeMock.fail = true;
         await expect(requestWithoutDependencies.exec()).rejects.toThrow(Error);
     });
+
+    it(`should use the full url if given one as part of the path instead of the global endpoint`, async () => {
+        const requestWithPath = new Request({
+            endpoint: 'http://example.com',
+            request: 'GET http://martianwabbit.com/user',
+            alias: 'get-user'
+        });
+
+        const requestWithoutPath = new Request({
+            endpoint: 'http://example.com',
+            request: 'GET /user',
+            alias: 'get-user'
+        });
+
+        await expect(requestWithPath.exec()).resolves.toHaveProperty(
+            'request.endpoint',
+            'http://martianwabbit.com/user'
+        );
+
+        await expect(requestWithoutPath.exec()).resolves.toHaveProperty(
+            'request.endpoint',
+            'http://example.com/user'
+        );
+    });
 });

src/request.js

@@ -6,7 +6,8 @@ const {
     requestRegex,
     replacementRegex,
     UpperCaseKeys,
-    removeOptionalKeys
+    removeOptionalKeys,
+    isUrl
 } = require('./shared');
 
 class Request {
@@ -63,8 +64,10 @@ class Request {
     }
 
     async exec(cache = new RequestCache()) {
+        const isPathFullUrl = isUrl(this.PATH);
+
         let settings = cache.parse({
-            baseUrl: this.ENDPOINT,
+            baseUrl: isPathFullUrl ? '' : this.ENDPOINT,
             uri: this.PATH,
             method: this.VERB,
             jar: this.COOKIEJAR,

src/shared.js

@@ -1,3 +1,5 @@
+const { URL } = require('url');
+
 const httpVerbs = [
     'GET',
     'HEAD',
@@ -66,6 +68,15 @@ const replaceInObject = function(obj, fn) {
 
 const moduleVersion = () => parseInt(require('../package.json').version, 10);
 
+const isUrl = function(str) {
+    try {
+        new URL(str);
+        return true;
+    } catch (e) {
+        return false;
+    }
+};
+
 module.exports = {
     requestRegex,
     replacementRegex,
@@ -74,5 +85,6 @@ module.exports = {
     removeOptionalKeys,
     toKebabCase,
     replaceInObject,
-    moduleVersion
+    moduleVersion,
+    isUrl
 };