Fix CWL tests refs #18238

[arvados.git] / sdk / cwl / arvados_cwl / arvcontainer.py

diff --git a/sdk/cwl/arvados_cwl/arvcontainer.py b/sdk/cwl/arvados_cwl/arvcontainer.py
index 560e8979ecd0950f989ba50d03ea44302b8a94ce..ae3c6688955301141f0af3405787c9f831fb58b7 100644 (file)
--- a/sdk/cwl/arvados_cwl/arvcontainer.py
+++ b/sdk/cwl/arvados_cwl/arvcontainer.py
@@ -520,10 +520,10 @@ class RunnerContainer(Runner):
         if runtimeContext.debug:
             command.append("--debug")
 
-        if runtimeContext.storage_classes != "default":
+        if runtimeContext.storage_classes != "default" and runtimeContext.storage_classes:
             command.append("--storage-classes=" + runtimeContext.storage_classes)
 
-        if runtimeContext.intermediate_storage_classes != "default":
+        if runtimeContext.intermediate_storage_classes != "default" and runtimeContext.intermediate_storage_classes:
             command.append("--intermediate-storage-classes=" + runtimeContext.intermediate_storage_classes)
 
         if self.on_error: