Issue #779 Fix deprecation warnings (#850)

Summary:
Resolves #779 - Updates strings in several test files to properly escape backslashes.

Pull Request resolved: #850

Reviewed By: chadaustin

Differential Revision: D23249109

Pulled By: wez

fbshipit-source-id: 4c1a9fe13e7de6f2c19eef9bac17ee6847568bbf

tests/integration/test_clock.py

@@ -15,15 +15,15 @@ def test_clock(self):
         self.watchmanCommand("watch", root)
         clock = self.watchmanCommand("clock", root)
 
-        self.assertRegex(clock["clock"], "^c:\d+:\d+:\d+:\d+$")
+        self.assertRegex(clock["clock"], "^c:\\d+:\\d+:\\d+:\\d+$")
 
     def test_clock_sync(self):
         root = self.mkdtemp()
         self.watchmanCommand("watch", root)
         clock1 = self.watchmanCommand("clock", root, {"sync_timeout": 100})
-        self.assertRegex(clock1["clock"], "^c:\d+:\d+:\d+:\d+$")
+        self.assertRegex(clock1["clock"], "^c:\\d+:\\d+:\\d+:\\d+$")
 
         clock2 = self.watchmanCommand("clock", root, {"sync_timeout": 100})
-        self.assertRegex(clock2["clock"], "^c:\d+:\d+:\d+:\d+$")
+        self.assertRegex(clock2["clock"], "^c:\\d+:\\d+:\\d+:\\d+$")
 
         self.assertNotEqual(clock1, clock2)

tests/integration/test_fields.py

@@ -79,4 +79,4 @@ def test_fields(self):
             self.assertEqual(ns // 1000, us)
 
         for field in ["cclock", "oclock"]:
-            self.assertRegex(file[field], "^c:\d+:\d+:\d+:\d+$")
+            self.assertRegex(file[field], "^c:\\d+:\\d+:\\d+:\\d+$")

tests/integration/test_request_id.py

@@ -50,7 +50,7 @@ def test_queryRequestId(self):
         request_id = "f13bd3bc02c27afe2413932c6fa6c4942b0574b3"
         params = {"since": "c:0:0", "request_id": request_id}
         self.watchmanCommand("query", root, params)
-        pat = re.compile(".* \[client=.*\] request_id = %s" % request_id)
+        pat = re.compile(".* \\[client=.*\\] request_id = %s" % request_id)
 
         self.assertWaitFor(
             lambda: any(pat.match(l) for l in self.getServerLogContents()),