1 files changed, 115 insertions, 0 deletions
diff --git a/packages/cli/src/utils/gitUtils.test.ts b/packages/cli/src/utils/gitUtils.test.ts
new file mode 100644
index 00000000..4a29f589
--- /dev/null
+++ b/packages/cli/src/utils/gitUtils.test.ts
@@ -0,0 +1,115 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { vi, describe, expect, it, afterEach, beforeEach } from 'vitest';
+import * as child_process from 'child_process';
+import {
+  isGitHubRepository,
+  getGitRepoRoot,
+  getLatestGitHubRelease,
+} from './gitUtils.js';
+
+vi.mock('child_process');
+
+describe('isGitHubRepository', async () => {
+  beforeEach(() => {
+    vi.resetAllMocks();
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it('returns false if the git command fails', async () => {
+    vi.mocked(child_process.execSync).mockImplementation((): string => {
+      throw new Error('oops');
+    });
+    expect(isGitHubRepository()).toBe(false);
+  });
+
+  it('returns false if the remote is not github.com', async () => {
+    vi.mocked(child_process.execSync).mockReturnValueOnce('https://gitlab.com');
+    expect(isGitHubRepository()).toBe(false);
+  });
+
+  it('returns true if the remote is github.com', async () => {
+    vi.mocked(child_process.execSync).mockReturnValueOnce(`
+      origin  https://github.com/sethvargo/gemini-cli (fetch)
+      origin  https://github.com/sethvargo/gemini-cli (push)
+    `);
+    expect(isGitHubRepository()).toBe(true);
+  });
+});
+
+describe('getGitRepoRoot', async () => {
+  beforeEach(() => {
+    vi.resetAllMocks();
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it('throws an error if git root cannot be determined', async () => {
+    vi.mocked(child_process.execSync).mockImplementation((): string => {
+      throw new Error('oops');
+    });
+    expect(() => {
+      getGitRepoRoot();
+    }).toThrowError(/oops/);
+  });
+
+  it('throws an error if git root is empty', async () => {
+    vi.mocked(child_process.execSync).mockReturnValueOnce('');
+    expect(() => {
+      getGitRepoRoot();
+    }).toThrowError(/Git repo returned empty value/);
+  });
+
+  it('returns the root', async () => {
+    vi.mocked(child_process.execSync).mockReturnValueOnce('/path/to/git/repo');
+    expect(getGitRepoRoot()).toBe('/path/to/git/repo');
+  });
+});
+
+describe('getLatestRelease', async () => {
+  beforeEach(() => {
+    vi.resetAllMocks();
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it('throws an error if the fetch fails', async () => {
+    global.fetch = vi.fn(() => Promise.reject('nope'));
+    expect(getLatestGitHubRelease()).rejects.toThrowError(
+      /Unable to determine the latest/,
+    );
+  });
+
+  it('throws an error if the fetch does not return a json body', async () => {
+    global.fetch = vi.fn(() =>
+      Promise.resolve({
+        ok: true,
+        json: () => Promise.resolve({ foo: 'bar' }),
+      } as Response),
+    );
+    expect(getLatestGitHubRelease()).rejects.toThrowError(
+      /Unable to determine the latest/,
+    );
+  });
+
+  it('returns the release version', async () => {
+    global.fetch = vi.fn(() =>
+      Promise.resolve({
+        ok: true,
+        json: () => Promise.resolve({ tag_name: 'v1.2.3' }),
+      } as Response),
+    );
+    expect(getLatestGitHubRelease()).resolves.toBe('v1.2.3');
+  });
+});