test: Add tests with pytest and tox

Author: Mukundan314

test/test_api.py

@@ -0,0 +1,28 @@
+import pytest
+import codeforces
+
+class TestCall(object):
+    def test_undefined_method(self):
+        with pytest.raises(codeforces.error.CodeforcesAPIError):
+            method = "undefined.method"
+            codeforces.api.call(method)
+
+    def test_unauth_method(self):
+        method = "user.info"
+        handles = "python-codeforces"
+
+        codeforces.api.call(method, handles=handles)
+
+        key = "0d905168ea10217dd91472e861bf8c80932f060e"
+        secret = "3d3872085b0255159381a1884e9f66d5213ba796"
+        codeforces.api.call(method, key=key, secret=secret, handles=handles)
+
+    def test_auth_method(self):
+        method = "user.friends"
+
+        key = "0d905168ea10217dd91472e861bf8c80932f060e"
+        secret = "3d3872085b0255159381a1884e9f66d5213ba796"
+        codeforces.api.call(method, key=key, secret=secret)
+
+        with pytest.raises(codeforces.error.CodeforcesAPIError):
+            codeforces.api.call(method)

test/test_problem.py

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+import pytest
+import codeforces
+
+class TestGetInfo(object):
+    def test_normal_problem(self):
+        contest_id = 1
+        index = 'A'
+
+        title, time_limit, memory_limit, sample_tests = codeforces.problem.get_info(contest_id, index)
+
+        assert(title == 'A. Theatre Square')
+        assert(time_limit == '1 second')
+        assert(memory_limit == '256 megabytes')
+        assert(list(sample_tests) == [('6 6 4', '4')])

tox.ini

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+# tox (https://tox.readthedocs.io/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+
+[tox]
+envlist = py36,py37
+
+[testenv]
+deps =
+    pytest
+commands =
+    pytest