swc/node-swc/__tests__/module_test.js

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const swc = require("../../");
it("should emit _interop_require_default", () => {
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const out = swc.transformSync(`import foo from "foo"`, {
module: {
type: "commonjs"
}
});
expect(out.map).toBeFalsy();
expect(out.code).toContain(`function _interop_require_default`);
expect(out.code).toContain(`_interop_require_default(require("foo"))`);
});
it("should emit _interop_require_wildcard", () => {
const out = swc.transformSync('import * as foo from "foo"', {
module: {
type: "commonjs"
}
});
expect(out.map).toBeFalsy();
expect(out.code).toContain(`function _interop_require_wildcard`);
expect(out.code).toContain(
`_interop_require_wildcard(require("foo"))`
);
});
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it("should work with amd and external helpers", () => {
const out = swc.transformSync(
`class Foo {}
class Bar extends Foo {}`,
{
jsc: {
externalHelpers: true
},
module: {
type: "amd",
moduleId: "a"
}
}
);
expect(out.map).toBeFalsy();
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expect(out.code).toContain(`define("a",`);
expect(out.code).toContain(`_class_call_check._(this, Foo);`);
expect(out.code).toContain(`_inherits._(Bar, Foo);`);
});
it('should not require filename if no exports in umd', () => {
const code = `console.log('test')`;
const out = swc.transformSync(code, {
jsc: {
parser: {
syntax: 'ecmascript',
},
},
module: {
type: 'umd',
},
isModule: true,
});
expect(out.code).toContain(`function(global`);
});