Merge pull request #346 from ExaWorks/ensure_job_is_new_before_submit

Check that the job is in a new state before submitting.

Author: hategan

src/psij/job_executor.py

@@ -8,6 +8,7 @@
 from psij import InvalidJobException
 from psij.descriptor import Descriptor, _VersionEntry
 from psij._plugins import _register_plugin, _get_plugin_class, _print_plugin_status
+from psij.job_state import JobState
 from psij.job_status import JobStatus
 from psij.job import Job, JobStatusCallback, FunctionJobStatusCallback
 from psij.job_executor_config import JobExecutorConfig
@@ -88,6 +89,8 @@ def _check_job(self, job: Job) -> JobSpec:
         -------
             A non-null job specification
         """
+        if job.status.state != JobState.NEW:
+            raise InvalidJobException('Job must be in NEW state')
         spec = job.spec
         if not spec:
             raise InvalidJobException('Missing specification')