Test x/ project clones in Gerrit

This will help us catch any regressions in our workaround for handling
x/ routes in Gerrit. We update the test project in Gerrit to be
x/test-project then add a testinfra test to clone it.

If we can clone x/test-project then our workaround continues to
function.

Change-Id: I50e4cb1a5d3c9f7c4405500f09bf6c3be3e7df9c

playbooks/test-review.yaml

@@ -111,7 +111,7 @@
 
     - name: Create project project in Gerrit
       uri:
-        url: http://localhost:8081/a/projects/test-project
+        url: http://localhost:8081/a/projects/x%2Ftest-project
         method: PUT
         user: admin
         password: secret
@@ -129,11 +129,11 @@
           [gerrit]
           host=localhost
           port=29418
-          project=project
+          project=x/test-project
           EOF
           git add .gitreview
           git commit -m "Initial commit"
-          git remote add gerrit http://admin:secret@localhost:8081/test-project
+          git remote add gerrit http://admin:secret@localhost:8081/x/test-project
           git push -f --set-upstream gerrit +HEAD:master
 
           curl -Lo .git/hooks/commit-msg http://localhost:8081/tools/hooks/commit-msg

testinfra/test_gerrit.py

@@ -26,6 +26,11 @@ def test_gerrit_listening(host):
     gerrit_web = host.socket("tcp://:::8081")
     assert gerrit_web.is_listening
 
+def test_gerrit_x_project_clone(host):
+    cmd = host.run(
+        'git clone http://localhost:8081/x/test-project /tmp/test-project')
+    assert "Cloning into '/tmp/test-project'..." in cmd.stderr
+
 def test_gerrit_screenshot(host):
     driver = webdriver.Remote(
         command_executor='http://%s:4444/wd/hub' % (host.backend.get_hostname()),
@@ -41,7 +46,7 @@ def test_gerrit_screenshot(host):
         driver.save_screenshot("/var/log/screenshots/gerrit-main-page.png")
 
         for change in (1, 2):
-            driver.get("http://localhost:8081/c/test-project/+/%s" % change)
+            driver.get("http://localhost:8081/c/x/test-project/+/%s" % change)
             time.sleep(5)
             driver.execute_script(
                 "document.querySelector('gr-app').shadowRoot"