webkitpy: Override TEMPDIR for Xvfb.

third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py
index 2b910bc262af3cb7d78a54ffe97ef4a6d846d082..8e902fd97d456179e6573a0b81a5c79806efe6fb 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/executive_mock.py
@@ -26,6 +26,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import collections
 import logging
 import os
 import StringIO
@@ -60,6 +61,9 @@ class MockProcess(object):
         return
 
 
+MockCall = collections.namedtuple('MockCall', ('args', 'env'))
+
+
 class MockExecutive(object):
     PIPE = 'MOCK PIPE'
     STDOUT = 'MOCK STDOUT'
@@ -82,7 +86,15 @@ class MockExecutive(object):
         self._exception = exception
         self._run_command_fn = run_command_fn
         self._proc = None
-        self.calls = []
+        self.full_calls = []
+
+    def _append_call(self, args, env=None):
+        if env:
+            env = env.copy()
+        self.full_calls.append(MockCall(
+            args=args,
+            env=env.copy() if env is not None else None,
+        ))
 
     def check_running_pid(self, pid):
         return pid in self._running_pids.values()
@@ -113,7 +125,7 @@ class MockExecutive(object):
                     decode_output=False,
                     env=None,
                     debug_logging=False):
-        self.calls.append(args)
+        self._append_call(args, env=env)
 
         assert isinstance(args, list) or isinstance(args, tuple)
 
@@ -160,7 +172,7 @@ class MockExecutive(object):
 
     def popen(self, args, cwd=None, env=None, **_):
         assert all(isinstance(arg, basestring) for arg in args)
-        self.calls.append(args)
+        self._append_call(args, env=env)
         if self._should_log:
             cwd_string = ''
             if cwd:
@@ -175,21 +187,21 @@ class MockExecutive(object):
 
     def call(self, args, **_):
         assert all(isinstance(arg, basestring) for arg in args)
-        self.calls.append(args)
+        self._append_call(args)
         _log.info('Mock call: %s', args)
 
     def run_in_parallel(self, commands):
         assert len(commands)
 
-        num_previous_calls = len(self.calls)
+        num_previous_calls = len(self.full_calls)
         command_outputs = []
         for cmd_line, cwd in commands:
             assert all(isinstance(arg, basestring) for arg in cmd_line)
             command_outputs.append([0, self.run_command(cmd_line, cwd=cwd), ''])
 
-        new_calls = self.calls[num_previous_calls:]
-        self.calls = self.calls[:num_previous_calls]
-        self.calls.append(new_calls)
+        new_calls = self.full_calls[num_previous_calls:]
+        self.full_calls = self.full_calls[:num_previous_calls]
+        self.full_calls.append(new_calls)
         return command_outputs
 
     def map(self, thunk, arglist, processes=None):
@@ -198,6 +210,20 @@ class MockExecutive(object):
     def process_dump(self):
         return []
 
+    @property
+    def calls(self):
+        # TODO(crbug.com/718456): Make self.full_calls always be an array of
+        # arrays of MockCalls, rather than a union type, and possibly remove
+        # this property in favor of direct "full_calls" access in unit tests.
+        def get_args(v):
+            if isinstance(v, list):
+                return [get_args(e) for e in v]
+            elif isinstance(v, MockCall):
+                return v.args
+            else:
+                return TypeError('Unknown full_calls type: %s' % (type(v).__name__,))
+        return get_args(self.full_calls)
+
 
 def mock_git_commands(vals, strict=False):
     def run_fn(args):