wip

tests/unit/website/getAppMode.test.ts

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+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+
+import { getAppMode, AppMode } from '../../../apps/website/lib/mode';
+
+const ORIGINAL_NODE_ENV = process.env.NODE_ENV;
+
+describe('getAppMode', () => {
+  const originalEnv = process.env;
+
+  beforeEach(() => {
+    process.env = { ...originalEnv };
+    process.env.NODE_ENV = 'production';
+  });
+
+  afterEach(() => {
+    process.env = originalEnv;
+    process.env.NODE_ENV = ORIGINAL_NODE_ENV;
+  });
+
+  it('returns "pre-launch" when NEXT_PUBLIC_GRIDPILOT_MODE is undefined', () => {
+    delete process.env.NEXT_PUBLIC_GRIDPILOT_MODE;
+
+    const mode = getAppMode();
+
+    expect(mode).toBe<AppMode>('pre-launch');
+  });
+
+  it('returns "pre-launch" when NEXT_PUBLIC_GRIDPILOT_MODE is explicitly set to "pre-launch"', () => {
+    process.env.NEXT_PUBLIC_GRIDPILOT_MODE = 'pre-launch';
+
+    const mode = getAppMode();
+
+    expect(mode).toBe<AppMode>('pre-launch');
+  });
+
+  it('returns "alpha" when NEXT_PUBLIC_GRIDPILOT_MODE is set to "alpha"', () => {
+    process.env.NEXT_PUBLIC_GRIDPILOT_MODE = 'alpha';
+
+    const mode = getAppMode();
+
+    expect(mode).toBe<AppMode>('alpha');
+  });
+
+  it('falls back to "pre-launch" and logs when NEXT_PUBLIC_GRIDPILOT_MODE is invalid in production', () => {
+    const consoleError = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+    process.env.NEXT_PUBLIC_GRIDPILOT_MODE = 'invalid-mode';
+
+    const mode = getAppMode();
+
+    expect(mode).toBe<AppMode>('pre-launch');
+    expect(consoleError).toHaveBeenCalled();
+
+    consoleError.mockRestore();
+  });
+
+  it('throws in development when NEXT_PUBLIC_GRIDPILOT_MODE is invalid', () => {
+    process.env.NODE_ENV = 'development';
+    process.env.NEXT_PUBLIC_GRIDPILOT_MODE = 'invalid-mode';
+
+    expect(() => getAppMode()).toThrowError(/Invalid NEXT_PUBLIC_GRIDPILOT_MODE/);
+  });
+});