test(auth): cover manifest provider plugin enabling

src/commands/auth-choice.test.ts

@@ -1046,6 +1046,81 @@ describe("applyAuthChoice", () => {
     );
   });
 
+  it("enables the owning plugin for manifest provider auth choices", async () => {
+    await setupTempState();
+    const provider = createFixedChoiceProvider({
+      providerId: "github-copilot",
+      label: "GitHub Copilot",
+      choiceId: "github-copilot-github",
+      method: {
+        id: "github",
+        label: "GitHub Copilot",
+        kind: "token",
+        run: vi.fn(
+          async (): Promise<ProviderAuthResult> => ({
+            profiles: [
+              {
+                profileId: "github-copilot:github",
+                credential: {
+                  type: "token",
+                  provider: "github-copilot",
+                  token: "gho_copilot_test",
+                },
+              },
+            ],
+            defaultModel: "github-copilot/claude-opus-4.7",
+          }),
+        ),
+      },
+    });
+    const manifestSpy = vi
+      .spyOn(providerAuthChoices, "resolveManifestProviderAuthChoice")
+      .mockReturnValue({
+        pluginId: "github-copilot",
+        providerId: "github-copilot",
+        methodId: "github",
+        choiceId: "github-copilot-github",
+        choiceLabel: "GitHub Copilot",
+      });
+    providerAuthChoiceTesting.setDepsForTest({
+      loadPluginProviderRuntime: async () => ({
+        resolvePluginProviders,
+        resolvePluginSetupProvider: () => provider,
+        resolveProviderPluginChoice,
+        runProviderModelSelectedHook,
+      }),
+    });
+    try {
+      const result = await applyAuthChoice({
+        authChoice: "github-copilot-github",
+        config: { plugins: { entries: { "github-copilot": { enabled: false } } } },
+        prompter: createPrompter({}),
+        runtime: createExitThrowingRuntime(),
+        setDefaultModel: true,
+        preserveExistingDefaultModel: true,
+      });
+
+      expect(result.config.plugins?.entries?.["github-copilot"]).toEqual({ enabled: true });
+      expect(result.config.auth?.profiles?.["github-copilot:github"]).toMatchObject({
+        provider: "github-copilot",
+        mode: "token",
+      });
+      expect(resolveAgentModelPrimaryValue(result.config.agents?.defaults?.model)).toBe(
+        "github-copilot/claude-opus-4.7",
+      );
+    } finally {
+      manifestSpy.mockRestore();
+      providerAuthChoiceTesting.setDepsForTest({
+        loadPluginProviderRuntime: async () => ({
+          resolvePluginProviders,
+          resolvePluginSetupProvider: () => undefined,
+          resolveProviderPluginChoice,
+          runProviderModelSelectedHook,
+        }),
+      });
+    }
+  });
+
   it("uses explicit env for plugin auth resolution instead of host env", async () => {
     await setupTempState();
     process.env.OPENAI_API_KEY = "sk-openai-host"; // pragma: allowlist secret