Add tests for errors when fetching actions

actions-languageserver/src/description-providers/action-input.test.ts

@@ -110,4 +110,23 @@ describe("action descriptions", () => {
 
     expect(await getDescription("typo", mock)).toBeUndefined();
   });
+
+  // TODO: https://github.com/github/c2c-actions-experience/issues/7056
+  it.failing("action does not exist", async () => {
+    const mock = fetchMock
+      .sandbox()
+      .getOnce("https://api.github.com/repos/actions/checkout/contents/action.yml?ref=v3", 404)
+      .getOnce("https://api.github.com/repos/actions/checkout/contents/action.yaml?ref=v3", 404);
+
+    expect(await getDescription("repository", mock)).toBeUndefined();
+  });
+
+  // TODO: https://github.com/github/c2c-actions-experience/issues/7056
+  it.failing("invalid permissions", async () => {
+    const mock = fetchMock
+      .sandbox()
+      .getOnce("https://api.github.com/repos/actions/checkout/contents/action.yml?ref=v3", 403);
+
+    expect(await getDescription("repository", mock)).toBeUndefined();
+  });
 });