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utils.spec.ts
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utils.spec.ts
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import { stripIndents } from '@nx/devkit';
import { addJsExtensionToImports } from './utils';
describe(`utils`, () => {
describe(`#addJsExtensionToImports`, () => {
it(`should not transform anything if non supported module type is specified`, () => {
const code = stripIndents`
export { themeToTokensObject } from './themeToTokensObject';
`;
let actual = addJsExtensionToImports(code, 'umd');
expect(actual).toEqual(code);
actual = addJsExtensionToImports(code, 'amd');
expect(actual).toEqual(code);
actual = addJsExtensionToImports(code, 'systemjs');
expect(actual).toEqual(code);
});
it(`should add .js extensions for esm`, () => {
const code = stripIndents`
export { themeToTokensObject } from './themeToTokensObject';
export { tokens } from './tokens';
export { typographyStyles } from './global/index.js';
`;
const actual = addJsExtensionToImports(code, 'es6');
const expected = stripIndents`
export { themeToTokensObject } from './themeToTokensObject.js';
export { tokens } from './tokens.js';
export { typographyStyles } from './global/index.js';
`;
expect(actual).toEqual(expected);
});
it(`should add .js extensions for commonjs`, () => {
const code = stripIndents`
const _themeToTokensObject = require("./themeToTokensObject");
const _tokens = require("./tokens");
const _index2 = require("./global/index.js");
`;
const actual = addJsExtensionToImports(code, 'commonjs');
const expected = stripIndents`
const _themeToTokensObject = require("./themeToTokensObject.js");
const _tokens = require("./tokens.js");
const _index2 = require("./global/index.js");
`;
expect(actual).toEqual(expected);
});
});
});