Tests: Implement export() for task access

test/basetest/task.py

@@ -5,6 +5,7 @@ import tempfile
 import shutil
 import atexit
 import unittest
+import json
 from .utils import (run_cmd_wait, run_cmd_wait_nofail, which,
                     task_binary_location)
 from .exceptions import CommandError
@@ -146,6 +147,16 @@ class Task(object):
         with open(self.taskrc, "r") as f:
             return f.readlines()
 
+    def export(self, export_filter=None):
+        """Run "task export", return JSON array of exported tasks."""
+        if export_filter is None:
+            export_filter = ""
+
+        code, out, err = self.runSuccess("rc.json.array=1 {0} export"
+                                         "".format(export_filter))
+
+        return json.loads(out)
+
     def runSuccess(self, args=(), input=None, merge_streams=False,
                    timeout=5):
         """Invoke task with given arguments and fail if exit code != 0