[3.3] Backport CI config from master

.travis.yml

@@ -0,0 +1,54 @@
+language: c
+dist: trusty
+sudo: false
+group: beta
+
+# To cache doc-building dependencies.
+cache: pip
+
+branches:
+  only:
+    - master
+    - /^\d\.\d$/
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - env: OPTIONAL=true
+  include:
+    - os: linux
+      language: c
+      compiler: clang
+      # gcc also works, but to keep the # of concurrent builds down, we use one C
+      # compiler here and the other to run the coverage build. Clang is preferred
+      # in this instance for its better error messages.
+      env: TESTING=cpython
+
+# Travis provides only 2 cores, so don't overdo the parallelism and waste memory.
+before_script:
+  - |
+      set -e
+      if ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.rst$)|(^Doc)|(^Misc)'
+      then
+        echo "Only docs were updated, stopping build process."
+        exit
+      fi
+      ./configure --with-pydebug
+      make -j4
+
+script:
+  # `-r -w` implicitly provided through `make buildbottest`.
+  - make buildbottest TESTOPTS="-j4 -uall,-cpu"
+
+notifications:
+  email: false
+  irc:
+    channels:
+      # This is set to a secure variable to prevent forks from notifying the
+      # IRC channel whenever they fail a build. This can be removed when travis
+      # implements https://github.com/travis-ci/travis-ci/issues/1094.
+      # The actual value here is: irc.freenode.net#python-dev
+      - secure: "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"
+    on_success: change
+    on_failure: always
+    skip_join: true

Lib/test/test_imaplib.py

@@ -427,16 +427,6 @@ def test_logincapa(self):
             _server = self.imap_class(self.host, self.port)
             self.check_logincapa(_server)
 
-    def test_logincapa_with_client_certfile(self):
-        with transient_internet(self.host):
-            _server = self.imap_class(self.host, self.port, certfile=CERTFILE)
-            self.check_logincapa(_server)
-
-    def test_logincapa_with_client_ssl_context(self):
-        with transient_internet(self.host):
-            _server = self.imap_class(self.host, self.port, ssl_context=self.create_ssl_context())
-            self.check_logincapa(_server)
-
     def test_logout(self):
         with transient_internet(self.host):
             _server = self.imap_class(self.host, self.port)