Fixes error message that appears when deleting open PDS

packages/zowe-explorer/CHANGELOG.md

@@ -14,6 +14,7 @@ All notable changes to the "vscode-extension-for-zowe" extension will be documen
 
 ### Bug fixes
 
+- Fixed an issue where deleting an open PDS resulted in an error. [#3908](https://github.com/zowe/zowe-explorer-vscode/pull/3908)
 - Fixed an issue where `ssh` type profiles were throwing errors when making file system calls. [#3891](https://github.com/zowe/zowe-explorer-vscode/pull/3891)
 - Fixed duplicate credential prompts that occurred when logging out of SSO with multiple virtual workspaces open. [#3858](https://github.com/zowe/zowe-explorer-vscode/issues/3858)
 - Fixed race conditions in parallel file system calls made with invalid credentials. [#3830](https://github.com/zowe/zowe-explorer-vscode/pull/3830)

packages/zowe-explorer/__tests__/__unit__/trees/dataset/ZoweDatasetNode.unit.test.ts

@@ -46,6 +46,8 @@
 import { SettingsConfig } from "../../../../src/configuration/SettingsConfig";
 import { MockedProperty } from "../../../__mocks__/mockUtils";
 import { AuthUtils } from "../../../../src/utils/AuthUtils";
+import { ImperativeError } from "@zowe/imperative";
+import { error } from "console";
 
 // Missing the definition of path module, because I need the original logic for tests
 jest.mock("fs");
@@ -1909,4 +1911,21 @@
         expect(result.totalItems).toBe(42);
         expect(listDatasetsMock).toHaveBeenCalledTimes(1);
     });
+    it("returns an empty list, if listMembersInRange throws a 404 error", async () => {
+        const pdsNode = new ZoweDatasetNode({
+            label: "PDS.404",
+            collapsibleState: vscode.TreeItemCollapsibleState.Expanded,
+            contextOverride: Constants.DS_PDS_CONTEXT,
+        });
+
+        jest.spyOn(pdsNode, "listMembers").mockRejectedValue(
+            new imperative.ImperativeError({
+                msg: "Dataset not cataloged",
+                errorCode: `${imperative.RestConstants.HTTP_STATUS_404}`,
+            })
+        );
+
+        const result = await (pdsNode as any).listMembersInRange(undefined, 2);
+        expect(result).toStrictEqual({ items: [] });
+    });
 });

packages/zowe-explorer/src/trees/dataset/ZoweDatasetNode.ts

@@ -834,6 +834,11 @@ export class ZoweDatasetNode extends ZoweTreeNode implements IZoweDatasetTreeNod
 
             await this.listMembers(responses, { attributes: true, start, maxLength: start ? limit + 1 : limit });
         } catch (err) {
+            if (err instanceof imperative.ImperativeError && err.errorCode === `${imperative.RestConstants.HTTP_STATUS_404}`) {
+                return {
+                    items: [],
+                };
+            }
             const updated = await AuthUtils.errorHandling(err, {
                 apiType: ZoweExplorerApiType.Mvs,
                 profile: this.getProfile(),