test: add unit for isFeatureEnabledFnName case

Author: yarastqt

packages/feature-flags-webpack-plugin/__tests__/fixtures/component-c.js

@@ -0,0 +1,6 @@
+/* eslint-disable no-console */
+import { FEATURE_A, isEnabled } from './features'
+
+if (isEnabled(FEATURE_A)) {
+  console.log('enabled FEATURE_A')
+}

packages/feature-flags-webpack-plugin/__tests__/fixtures/features.js

@@ -9,3 +9,7 @@ export const FEATURE_B = {
 export function isFeatureEnabled(_flag) {
   return false
 }
+
+export function isEnabled(_flag) {
+  return false
+}

packages/feature-flags-webpack-plugin/__tests__/index.test.ts

@@ -28,4 +28,15 @@ describe('FeatureFlagsWebpackPlugin', () => {
       `"(()=>{\\"use strict\\";console.log(\\"enabled FEATURE_A\\"),console.log(\\"enabled FEATURE_B\\")})();"`,
     )
   })
+
+  test.only('should compile code with enabled feature and custom feature name', async () => {
+    const plugin = new FeatureFlagsWebpackPlugin({
+      isFeatureEnabledFnName: 'isEnabled',
+      flags: { FEATURE_A },
+    })
+    const { compiler } = await compile('./component-c.js', { plugins: [plugin] })
+    expect(getResult(compiler)).toMatchInlineSnapshot(
+      `"(()=>{\\"use strict\\";console.log(\\"enabled FEATURE_A\\")})();"`,
+    )
+  })
 })