From 5294479b5596cc649ab847ae0a5f490b9c3ff7b8 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 2 Apr 2017 14:32:32 +0300
Subject: Add smoke test yarns and ./check to run them

---
 check                | 10 ++++++++++
 yarns/100-hello.yarn | 16 ++++++++++++++++
 yarns/900.yarn       | 36 ++++++++++++++++++++++++++++++++++++
 yarns/lib.py         | 29 +++++++++++++++++++++++++++++
 4 files changed, 91 insertions(+)
 create mode 100755 check
 create mode 100644 yarns/100-hello.yarn
 create mode 100644 yarns/900.yarn
 create mode 100644 yarns/lib.py

diff --git a/check b/check
new file mode 100755
index 0000000..f4c6167
--- /dev/null
+++ b/check
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -eu
+
+yarn yarns/*.yarn \
+     --shell python2 \
+     --shell-arg '' \
+     --shell-library yarns/lib.py \
+     --cd-datadir \
+     "$@"
diff --git a/yarns/100-hello.yarn b/yarns/100-hello.yarn
new file mode 100644
index 0000000..9d06262
--- /dev/null
+++ b/yarns/100-hello.yarn
@@ -0,0 +1,16 @@
+# Backend smoke test
+
+This scenario is just for making sure we can, in our tests, start and
+stop the backend, and make requests to it.
+
+    SCENARIO backend smoke test
+    GIVEN a running backend instance
+
+    WHEN client makes request GET /version
+    THEN HTTP status code is 200
+    AND result matches { "version": "1.0" }
+
+    WHEN client makes request GET /blatherskite
+    THEN HTTP status code is 404
+
+    FINALLY stop backend instance
diff --git a/yarns/900.yarn b/yarns/900.yarn
new file mode 100644
index 0000000..c7e81a0
--- /dev/null
+++ b/yarns/900.yarn
@@ -0,0 +1,36 @@
+# Scenario step implementations
+
+    IMPLEMENTS GIVEN a running backend instance
+    backend = os.path.join(srcdir, 'distix-backend')
+    cliapp.runcmd(['/usr/sbin/daemonize', '-c.', backend, 'pid', 'port'])
+    vars['pid'] = cat('pid').strip()
+    vars['port'] = cat('port').strip()
+
+    IMPLEMENTS FINALLY stop backend instance
+    import signal
+    print 'killing process', repr(vars['pid'])
+    os.kill(int(vars['pid']), signal.SIGTERM)
+
+    IMPLEMENTS WHEN client makes request GET (\S+)
+    path = os.environ['MATCH_1']
+    url = 'http://localhost:{}{}'.format(vars['port'], path)
+    print 'url:', repr(url)
+    import requests
+    r = requests.get(url)
+    vars['http-status'] = r.status_code
+    vars['http-body'] = r.text
+
+    IMPLEMENTS THEN HTTP status code is (\d+)
+    wanted = int(os.environ['MATCH_1'])
+    print 'wanted:', repr(wanted)
+    print 'actual:', repr(vars['http-status'])
+    assert vars['http-status'] == wanted
+
+    IMPLEMENTS THEN result matches (.*)
+    import json
+    body = json.loads(vars['http-body'])
+    pattern = json.loads(os.environ['MATCH_1'])
+    assert type(body) == type(pattern)
+    for key in pattern.keys():
+        assert key in body
+        assert body[key] == pattern[key]
diff --git a/yarns/lib.py b/yarns/lib.py
new file mode 100644
index 0000000..b7df3a7
--- /dev/null
+++ b/yarns/lib.py
@@ -0,0 +1,29 @@
+import errno
+import os
+import time
+
+import cliapp
+
+import yarnutils
+
+datadir = os.environ['DATADIR']
+srcdir = os.environ['SRCDIR']
+
+vars = yarnutils.Variables(datadir)
+
+
+MAX_CAT_TIME = 5 # seconds
+def cat(filename):
+    start = time.time()
+    while time.time() - start < MAX_CAT_TIME:
+        try:
+            with open(filename) as f:
+                data = f.read()
+                if len(data) == 0:
+                    continue
+                return data
+        except (IOError, OSError) as e:
+            if e.errno == errno.ENOENT:
+                continue
+            raise
+    raise Exception("cat took more then %s seconds" % MAX_CAT_TIME)
-- 
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