Add mre tests

.coveragerc

@@ -0,0 +1,2 @@
+[run]
+omit = tests.py

Readme.md

@@ -1,4 +1,4 @@
-# jsonapi [![Travis](https://img.shields.io/travis/apiad/jsonapi.svg?style=flat-square)](https://travis-ci.org/apiad/jsonapi) [![Coveralls github](https://img.shields.io/coveralls/github/apiad/jsonapi.svg?style=flat-square)](https://coveralls.io/github/apiad/jsonapi?branch=master) [![Codacy grade](https://img.shields.io/codacy/grade/6cfc0cf3ee4b442bae0c43bf54a27a58.svg?style=flat-square)]() [![GitHub tag](https://img.shields.io/github/tag/apiad/jsonapi.svg?style=flat-square&label=current%20version)](https://github.com/apiad/jsonapi/releases) ![Python versions](https://img.shields.io/badge/Python-3.4%2C%203.5%2C%203.6-blue.svg?style=flat-square)
+# jsonapi [![Travis](https://img.shields.io/travis/apiad/jsonapi.svg?style=flat-square)](https://travis-ci.org/apiad/jsonapi) [![Coveralls github](https://img.shields.io/coveralls/github/apiad/jsonapi.svg?style=flat-square)](https://coveralls.io/github/apiad/jsonapi?branch=master) ![Codacy grade](https://img.shields.io/codacy/grade/6cfc0cf3ee4b442bae0c43bf54a27a58.svg?style=flat-square) [![GitHub tag](https://img.shields.io/github/tag/apiad/jsonapi.svg?style=flat-square&label=current%20version)](https://github.com/apiad/jsonapi/releases) ![Python versions](https://img.shields.io/badge/Python-3.4%2C%203.5%2C%203.6-blue.svg?style=flat-square)
 
 > A minimalistic JSON API framework in Python with support for **graphql**-style queries.
 

jsonapi.py

@@ -48,6 +48,9 @@ def _parse(self, x):
     def from_json(s):
         return JsonObj(**json.loads(s))
 
+    def __repr__(self):
+        return "JsonObj(**%s)" % str(self.dict())
+
 
 class JsonApi(JsonObj):
     def _query(self, obj, query):

pytest.ini

@@ -1,2 +1,3 @@
 [pytest]
+python_files=tests.py
 addopts = --doctest-modules --doctest-glob="*.md" --cov . --cov-report html --cov-report term-missing

tests.py

@@ -0,0 +1,26 @@
+import json
+from jsonapi import JsonApi, JsonObj
+
+
+def test_api_input_string():
+    class TestApi(JsonApi):
+        def something(self, a, b):
+            return a.x + b.y
+
+    api = TestApi()
+    query = {
+        'something': {
+            '$a': {'x': 10},
+            '$b': {'y': 20},
+        }
+    }
+
+    expected_response = {
+        'something': 30
+    }
+
+    query_str = json.dumps(query)
+
+    assert api(query) == expected_response
+    assert api(query) == api(query_str)
+    assert json.dumps(api(query), sort_keys=True) == api(query, encode=True, sort_keys=True)