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import { createEnvDefinitions } from './create-env-definitions'
describe('create-env-definitions', () => {
it('should create env definitions', async () => {
const loadedEnvFiles = [
{
path: '.env.local',
contents: '',
env: {
FROM_ENV_LOCAL: 'FROM_ENV_LOCAL',
},
},
{
path: '.env.development.local',
contents: '',
env: {
FROM_ENV_DEV_LOCAL: 'FROM_ENV_DEV_LOCAL',
},
},
{
path: 'next.config.js',
contents: '',
env: {
FROM_NEXT_CONFIG: 'FROM_NEXT_CONFIG',
},
},
]
const definitionStr = await createEnvDefinitions({
distDir: '/dist',
loadedEnvFiles,
})
expect(definitionStr).toMatchInlineSnapshot(`
"// Type definitions for Next.js environment variables
declare global {
namespace NodeJS {
interface ProcessEnv {
/** Loaded from \`.env.local\` */
FROM_ENV_LOCAL?: string
/** Loaded from \`.env.development.local\` */
FROM_ENV_DEV_LOCAL?: string
/** Loaded from \`next.config.js\` */
FROM_NEXT_CONFIG?: string
}
}
}
export {}"
`)
})
it('should allow empty env', async () => {
const definitionStr = await createEnvDefinitions({
distDir: '/dist',
loadedEnvFiles: [],
})
expect(definitionStr).toMatchInlineSnapshot(`
"// Type definitions for Next.js environment variables
declare global {
namespace NodeJS {
interface ProcessEnv {
}
}
}
export {}"
`)
})
it('should dedupe env definitions in order of priority', async () => {
const loadedEnvFiles = [
{
path: '.env.local',
contents: '',
env: {
DUPLICATE_ENV: 'DUPLICATE_ENV',
},
},
{
path: '.env.development.local',
contents: '',
env: {
DUPLICATE_ENV: 'DUPLICATE_ENV',
},
},
{
path: 'next.config.js',
contents: '',
env: {
DUPLICATE_ENV: 'DUPLICATE_ENV',
},
},
]
const definitionStr = await createEnvDefinitions({
distDir: '/dist',
loadedEnvFiles,
})
expect(definitionStr).toMatchInlineSnapshot(`
"// Type definitions for Next.js environment variables
declare global {
namespace NodeJS {
interface ProcessEnv {
/** Loaded from \`.env.local\` */
DUPLICATE_ENV?: string
}
}
}
export {}"
`)
})
})
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