fix(httpverb): Fixed lowercase issue in method

Author: nutgaard

src/matcher-utils.ts

@@ -32,7 +32,7 @@ export default class MatcherUtils {
   static method(httpMethod: HttpMethod): RouteMatcher {
     return {
       test: (input: RequestInfo, init?: RequestInit) => {
-        return httpMethod === findRequestMethod(input, init);
+        return httpMethod === findRequestMethod(input, init).toUpperCase();
       }
     };
   }

test/yet-another-fetch-mock.test.ts

@@ -219,4 +219,13 @@ describe('FetchMock', () => {
 
     Promise.all([first, second]).then(() => done());
   });
+
+  it('should support lowercase httpverb', done => {
+    mock.post('/lowercase', { key: 'BIG-CASE' });
+
+    fetchToJson('/lowercase', { method: 'post' }).then(json => {
+      expect(json.key).toBe('BIG-CASE');
+      done();
+    });
+  });
 });