mcp-youtube

import { isEnabled, FEATURE_FLAGS } from "../featureFlags"; describe("featureFlags", () => { const originalEnv = process.env; beforeEach(() => { // Reset process.env to its original state before each test // and ensure specific feature flags are reset if they were manipulated directly. process.env = { ...originalEnv }; // Clear any potentially set flags from previous tests using a mock env // This is more about ensuring a clean slate for process.env manipulation tests for (const flagKey in FEATURE_FLAGS) { const envVarName = FEATURE_FLAGS[flagKey as keyof typeof FEATURE_FLAGS]; delete process.env[envVarName]; } }); afterAll(() => { // Restore original process.env after all tests are done process.env = originalEnv; }); it.each([ ["true", true], ["TRUE", true], ["false", false], ["", false], [undefined, false], ])("should return %s when env variable is %s", (value, expected) => { process.env[FEATURE_FLAGS.toolGetCommentSentiment] = value; expect(isEnabled("toolGetCommentSentiment")).toBe(expected); }); it('should return false if the feature flag environment variable is "false"', () => { process.env[FEATURE_FLAGS.toolGetCommentSentiment] = "false"; expect(isEnabled("toolGetCommentSentiment")).toBe(false); }); it("should return false if the feature flag environment variable is an arbitrary string", () => { process.env[FEATURE_FLAGS.toolGetCommentSentiment] = "enabled"; expect(isEnabled("toolGetCommentSentiment")).toBe(false); }); it("should use the provided env object for checking flags", () => { const mockEnv = { [FEATURE_FLAGS.toolAnalyzeThumbnails]: "true", [FEATURE_FLAGS.toolGetCommentSentiment]: "false", }; expect(isEnabled("toolAnalyzeThumbnails", mockEnv)).toBe(true); expect(isEnabled("toolGetCommentSentiment", mockEnv)).toBe(false); }); it("should handle all defined feature flags correctly when using process.env", () => { // Set all flags to true for (const flagKey in FEATURE_FLAGS) { const envVarName = FEATURE_FLAGS[flagKey as keyof typeof FEATURE_FLAGS]; process.env[envVarName] = "true"; } for (const flagKey in FEATURE_FLAGS) { expect(isEnabled(flagKey as keyof typeof FEATURE_FLAGS)).toBe(true); } // Set all flags to false for (const flagKey in FEATURE_FLAGS) { const envVarName = FEATURE_FLAGS[flagKey as keyof typeof FEATURE_FLAGS]; process.env[envVarName] = "false"; } for (const flagKey in FEATURE_FLAGS) { expect(isEnabled(flagKey as keyof typeof FEATURE_FLAGS)).toBe(false); } }); });