Improve etherpad functional testing

This adds a testinfra test that creates a pad and retrieves its
contents. Additionally adding 4 byte utf 8 characters to the stream to
ensure the database is configured properly.

Change-Id: Ie6855e201631ecf4fde6cda0c65941f094ed55d4

testinfra/test_etherpad.py

@@ -12,6 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import urllib.parse
 
 testinfra_hosts = ['etherpad99.opendev.org']
 
@@ -34,3 +35,26 @@ def test_etherpad_logs(host):
     mariadb_log_file = host.file('/var/log/containers/docker-mariadb.log')
     assert mariadb_log_file.exists
     assert mariadb_log_file.contains('mysqld: ready for connections')
+
+def test_etherpad_4_byte_utf8(host):
+    # The 🖖 utf8 character is a four byte character. This test ensures we
+    # can set that value in a pad and get it back out again. This test both
+    # general functionality as well as proper database setup for four byte
+    # utf8 chars
+    teststr = '🖖 Live long and prosper 🖖'
+    urlstr = urllib.parse.quote(teststr)
+    cmd = host.run('sudo docker-compose -f '
+                   '/etc/etherpad-docker/docker-compose.yaml '
+                   'exec -T etherpad cat /opt/etherpad-lite/APIKEY.txt')
+    token = cmd.stdout.strip()
+    cmd = host.run('wget -qO- "http://localhost:9001/api/1/createPad?'
+                   'apikey=%s&padID=testing"' % token)
+    assert '"code":0' in cmd.stdout
+    assert '"message":"ok"' in cmd.stdout
+    cmd = host.run('wget -qO- "http://localhost:9001/api/1/setText?'
+                   'apikey=%s&padID=testing&text=%s"' % (token, urlstr))
+    assert '"code":0' in cmd.stdout
+    assert '"message":"ok"' in cmd.stdout
+    cmd = host.run('wget -qO- "http://localhost:9001/api/1/getText?'
+                   'apikey=%s&padID=testing"' % token)
+    assert teststr in cmd.stdout