-added test for environ in execute_command

Author: ajohns

src/rez/tests/test_context.py

@@ -58,6 +58,25 @@ def test_execute_command(self):
         stdout = stdout.strip()
         self.assertEqual(stdout, "Hello Rez World!")
 
+    def test_execute_command_environ(self):
+        """Test that execute_command properly sets environ dict."""
+        parent_environ = {"BIGLY": "covfefe"}
+        r = ResolvedContext(["hello_world"])
+
+        pycode = ("import os; "
+                  "print os.getenv(\"BIGLY\"); "
+                  "print os.getenv(\"OH_HAI_WORLD\")")
+
+        args = ["python", "-c", pycode]
+
+        p = r.execute_command(args, parent_environ=parent_environ,
+                              stdout=subprocess.PIPE)
+        stdout, _ = p.communicate()
+        stdout = stdout.strip()
+        parts = [x.strip() for x in stdout.split('\n')]
+
+        self.assertEqual(parts, ["covfefe", "hello"])
+
     def test_serialize(self):
         """Test save/load of context."""
         # save