Ensure cancellation is supported for conda env creation.

Author: karthiknadig

src/client/pythonEnvironments/creation/provider/condaCreationProvider.ts

@@ -192,6 +192,10 @@ async function createEnvironment(options?: CreateEnvironmentOptions): Promise<Cr
                 throw ex;
             }
 
+            if (version === undefined) {
+                traceError('Python version was not selected for creating conda environment.');
+                return MultiStepAction.Cancel;
+            }
             return MultiStepAction.Continue;
         },
         undefined,

src/test/pythonEnvironments/creation/provider/condaCreationProvider.unit.test.ts

@@ -76,7 +76,7 @@ suite('Conda Creation provider tests', () => {
         });
         pickPythonVersionStub.resolves(undefined);
 
-        assert.isUndefined(await condaProvider.createEnvironment());
+        await assert.isRejected(condaProvider.createEnvironment());
     });
 
     test('Create conda environment', async () => {