Switch to trusty and run acceptance tests with postgres 9.6

.travis.yml

@@ -1,15 +1,12 @@
 sudo: false
+dist: trusty
 language: python
 python:
-- "3.5"
-addons:
-  apt:
-    packages:
-    - postgresql-contrib-9.5
-  postgresql: "9.5"
+- "3.4"  # 2.7 and 3.5 are preinstalled by default
 env:
   global:
-  - ETCDVERSION=3.0.15 ZKVERSION=3.4.9 CONSULVERSION=0.7.1
+  - ETCDVERSION=3.0.15 ZKVERSION=3.4.9 CONSULVERSION=0.7.2
+  - PYVERSIONS="2.7 3.4 3.5"
   matrix:
   - TEST_SUITE="python setup.py"
   - DCS="etcd" TEST_SUITE="behave"
@@ -19,10 +16,14 @@ cache:
   directories:
   - $HOME/mycache
 before_cache:
-- mv $HOME/virtualenv/python2.7.9 $HOME/mycache/python2.7.9
-- if [[ $TEST_SUITE != "behave" ]]; then mv $HOME/virtualenv/python3.4.2 $HOME/mycache/python3.4.2; fi
-- mv $HOME/virtualenv/python3.5.2 $HOME/mycache/python3.5.2
-- rm -f $HOME/mycache/python3.5.2/python3.5.2
+- |
+  rm -fr $HOME/mycache/python*
+  for pv in $PYVERSIONS; do
+      if [[ $TEST_SUITE != "behave" || $pv != "3.4" ]]; then
+          fpv=$(basename $(readlink $HOME/virtualenv/python${pv}))
+          mv $HOME/virtualenv/${fpv} $HOME/mycache/${fpv}
+      fi
+  done
 install:
   - |
     set -e
@@ -74,11 +75,12 @@ install:
         done
     fi
 
-    for pv in "2.7.9" "3.4.2" "3.5.2"; do
-        if [[ $TEST_SUITE != "behave" || $pv != "3.4.2" ]]; then
-            if [[ -d ~/mycache/python${pv} ]]; then
-                mv ~/virtualenv/python${pv} ~/virtualenv/python${pv}.bckp
-                mv ~/mycache/python${pv} ~/virtualenv/python${pv}
+    for pv in $PYVERSIONS; do
+        if [[ $TEST_SUITE != "behave" || $pv != "3.4" ]]; then
+            fpv=$(basename $(readlink $HOME/virtualenv/python$pv))
+            if [[ -d ~/mycache/${fpv} ]]; then
+                mv ~/virtualenv/${fpv} ~/virtualenv/${fpv}.bckp
+                mv ~/mycache/${fpv} ~/virtualenv/${fpv}
             fi
             source ~/virtualenv/python${pv}/bin/activate
             # explicitly install all needed python modules to cache them
@@ -89,7 +91,7 @@ install:
     done
 script:
   - |
-    for pv in "2.7" "3.4" "3.5"; do
+    for pv in $PYVERSIONS; do
         source ~/virtualenv/python${pv}/bin/activate
 
         if [[ $TEST_SUITE != "behave" ]]; then
@@ -98,7 +100,7 @@ script:
             $TEST_SUITE flake8
         elif [[ $pv != "3.4" ]]; then
             echo Running acceptance tests using python${pv}
-            if ! PATH=.:$PATH $TEST_SUITE; then
+            if ! PATH=.:/usr/lib/postgresql/9.6/bin:$PATH $TEST_SUITE; then
                 # output all log files when tests are failing
                 grep . features/output/*/*postgres?.*
                 exit 1

features/patroni_api.feature

@@ -73,7 +73,7 @@ Scenario: check the failover via the API in the pause mode
 	And replication works from postgres1 to postgres0 after 20 seconds
 
 Scenario: check the scheduled failover
-	Given I issue a scheduled failover from postgres1 to postgres0 in 1 seconds
+	Given I issue a scheduled failover from postgres1 to postgres0 in 3 seconds
 	Then I receive a response returncode 1
 	And I receive a response output "Can't schedule failover in the paused state"
 	When I run patronictl.py resume batman