diff --git a/src/cli/cli-installer.test.ts b/src/cli/cli-installer.test.ts
new file mode 100644
index 00000000..2320d951
--- /dev/null
+++ b/src/cli/cli-installer.test.ts
@@ -0,0 +1,83 @@
+import { afterEach, beforeEach, describe, expect, it, mock, spyOn } from "bun:test"
+import * as configManager from "./config-manager"
+import { runCliInstaller } from "./cli-installer"
+import type { InstallArgs } from "./types"
+
+describe("runCliInstaller", () => {
+  const mockConsoleLog = mock(() => {})
+  const mockConsoleError = mock(() => {})
+  const originalConsoleLog = console.log
+  const originalConsoleError = console.error
+
+  beforeEach(() => {
+    console.log = mockConsoleLog
+    console.error = mockConsoleError
+    mockConsoleLog.mockClear()
+    mockConsoleError.mockClear()
+  })
+
+  afterEach(() => {
+    console.log = originalConsoleLog
+    console.error = originalConsoleError
+  })
+
+  it("runs auth and provider setup steps when openai or copilot are enabled without gemini", async () => {
+    //#given
+    const addAuthPluginsSpy = spyOn(configManager, "addAuthPlugins").mockResolvedValue({
+      success: true,
+      configPath: "/tmp/opencode.jsonc",
+    })
+    const addProviderConfigSpy = spyOn(configManager, "addProviderConfig").mockReturnValue({
+      success: true,
+      configPath: "/tmp/opencode.jsonc",
+    })
+    const restoreSpies = [
+      addAuthPluginsSpy,
+      addProviderConfigSpy,
+      spyOn(configManager, "detectCurrentConfig").mockReturnValue({
+        isInstalled: false,
+        hasClaude: false,
+        isMax20: false,
+        hasOpenAI: false,
+        hasGemini: false,
+        hasCopilot: false,
+        hasOpencodeZen: false,
+        hasZaiCodingPlan: false,
+        hasKimiForCoding: false,
+      }),
+      spyOn(configManager, "isOpenCodeInstalled").mockResolvedValue(true),
+      spyOn(configManager, "getOpenCodeVersion").mockResolvedValue("1.0.200"),
+      spyOn(configManager, "addPluginToOpenCodeConfig").mockResolvedValue({
+        success: true,
+        configPath: "/tmp/opencode.jsonc",
+      }),
+      spyOn(configManager, "writeOmoConfig").mockReturnValue({
+        success: true,
+        configPath: "/tmp/oh-my-opencode.jsonc",
+      }),
+    ]
+
+    const args: InstallArgs = {
+      tui: false,
+      claude: "no",
+      openai: "yes",
+      gemini: "no",
+      copilot: "yes",
+      opencodeZen: "no",
+      zaiCodingPlan: "no",
+      kimiForCoding: "no",
+    }
+
+    //#when
+    const result = await runCliInstaller(args, "3.4.0")
+
+    //#then
+    expect(result).toBe(0)
+    expect(addAuthPluginsSpy).toHaveBeenCalledTimes(1)
+    expect(addProviderConfigSpy).toHaveBeenCalledTimes(1)
+
+    for (const spy of restoreSpies) {
+      spy.mockRestore()
+    }
+  })
+})