Add reveal test

extensions/ql-vscode/test/vscode-tests/no-workspace/data-extensions-editor/model-details/model-details-panel.test.ts

@@ -1,6 +1,9 @@
 import { window, TreeView } from "vscode";
 import { CodeQLCliServer } from "../../../../../src/codeql-cli/cli";
-import { ExternalApiUsage } from "../../../../../src/data-extensions-editor/external-api-usage";
+import {
+  CallClassification,
+  ExternalApiUsage,
+} from "../../../../../src/data-extensions-editor/external-api-usage";
 import { ModelDetailsPanel } from "../../../../../src/data-extensions-editor/model-details/model-details-panel";
 import { DatabaseItem } from "../../../../../src/databases/local-databases";
 import { mockedObject } from "../../../utils/mocking.helpers";
@@ -39,4 +42,57 @@ describe("ModelDetailsPanel", () => {
       expect(mockTreeView.badge?.value).toBe(1);
     });
   });
+
+  describe("revealItem", () => {
+    let mockTreeView: TreeView<unknown>;
+
+    const hideModeledApis: boolean = false;
+    const dbItem = mockedObject<DatabaseItem>({
+      getSourceLocationPrefix: () => "test",
+    });
+    const usage = {
+      classification: "unknown" as CallClassification,
+      label: "test",
+      url: {
+        uri: "test",
+        startLine: 1,
+        startColumn: 1,
+        endLine: 1,
+        endColumn: 1,
+      },
+    };
+
+    beforeEach(() => {
+      mockTreeView = {
+        reveal: jest.fn(),
+      } as unknown as TreeView<unknown>;
+      jest.spyOn(window, "createTreeView").mockReturnValue(mockTreeView);
+    });
+
+    it("should reveal the correct item in the tree view", async () => {
+      const externalApiUsages = mockedObject<ExternalApiUsage[]>([
+        {
+          usages: [usage],
+        },
+      ]);
+
+      const panel = new ModelDetailsPanel(mockCliServer);
+      await panel.setState(externalApiUsages, dbItem, hideModeledApis);
+
+      await panel.revealItem(usage);
+
+      expect(mockTreeView.reveal).toHaveBeenCalledWith(usage);
+    });
+
+    it("should do nothing if usage cannot be found", async () => {
+      const externalApiUsages = mockedObject<ExternalApiUsage[]>([]);
+
+      const panel = new ModelDetailsPanel(mockCliServer);
+      await panel.setState(externalApiUsages, dbItem, hideModeledApis);
+
+      await panel.revealItem(usage);
+
+      expect(mockTreeView.reveal).not.toHaveBeenCalled();
+    });
+  });
 });