[WIP] Add simple integration test

.travis.yml

@@ -23,3 +23,6 @@ language: clojure
 jdk:
   - oraclejdk9
   - oraclejdk10
+
+after_success:
+  - python3 integration-tests/run.py

integration-tests/config.json

@@ -0,0 +1,15 @@
+{
+  "host": "localhost",
+  "port": 7777,
+  "protocol": "http",
+  "tests": [
+    {
+      "name": "Status Check",
+      "path": "/api/can-we-build-it",
+      "method": "GET",
+      "response": {
+        "message": "Yes we can! 🔨 🔨"
+      }
+    }
+  ]
+}

integration-tests/run.py

@@ -0,0 +1,89 @@
+#!/usr/bin/python3
+
+# This file is part of Bob.
+#
+# Bob is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Bob is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Bob. If not, see <http://www.gnu.org/licenses/>.
+
+import json
+import subprocess
+from urllib import request
+from urllib.error import URLError
+from urllib.parse import urljoin
+
+import time
+
+with open("integration-tests/config.json") as json_data:
+    CONFIG = json.load(json_data)
+
+BASE_URL = "{}://{}:{}".format(
+    CONFIG["protocol"], CONFIG["host"], CONFIG["port"]
+)
+
+
+def start_bob():
+    # TODO: Store PID and kill it post test.
+
+    subprocess.Popen(["lein", "run"])
+    print("Started bob.")
+
+
+def wait_for_it():
+    # TODO: HORRIBLE way to wait. Please improve.
+
+    while True:
+        try:
+            req = request.Request(BASE_URL)
+
+            with request.urlopen(req) as _:
+                pass
+        except (ConnectionRefusedError, URLError):
+            print("Waiting for bob at {}".format(BASE_URL))
+            time.sleep(1)
+
+            continue
+
+        break
+
+
+def run_tests():
+    for test in CONFIG["tests"]:
+        print("Testing {}.".format(test["name"]))
+
+        url = urljoin(BASE_URL, test["path"])
+
+        if test["method"] == "GET":
+            req = request.Request(url)
+
+            with request.urlopen(req) as res:
+                expected = json.loads(res.read().decode("utf-8"))
+
+                assert expected == test["response"]
+        else:
+            raise Exception(
+                "Unknown method {} at test {}.".format(
+                    test["method"], test["name"]
+                )
+            )
+
+        print("{} passed.".format(test["name"]))
+
+
+if __name__ == "__main__":
+    start_bob()
+
+    wait_for_it()
+
+    run_tests()
+
+    print("All checks passed!")