60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
import { parse } from "../lib/index.js";
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describe("options", () => {
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describe("strictMode", () => {
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const CODE = "function f(x, x) {}";
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function expectToSucceed(opts) {
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expect(parse(CODE, opts).program.body[0]).toMatchObject({
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type: "FunctionDeclaration",
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id: { type: "Identifier", name: "f" },
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generator: false,
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async: false,
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params: [
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{ type: "Identifier", name: "x" },
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{ type: "Identifier", name: "x" },
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],
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body: {
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type: "BlockStatement",
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body: [],
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directives: [],
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},
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});
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}
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function expectToFail(opts) {
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expect(() => parse(CODE, opts)).toThrow(
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new SyntaxError("Argument name clash. (1:14)"),
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);
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}
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describe("sourceType module", () => {
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it("default parses as strict mode", () => {
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expectToFail({ sourceType: "module" });
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});
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it("false parses as sloppy mode", () => {
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expectToSucceed({ sourceType: "module", strictMode: false });
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});
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it("true parses as strict mode", () => {
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expectToFail({ sourceType: "module", strictMode: true });
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});
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});
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describe("sourceType script", () => {
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it("default parses as sloppy mode", () => {
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expectToSucceed({ sourceType: "script" });
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});
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it("false parses as sloppy mode", () => {
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expectToSucceed({ sourceType: "script", strictMode: false });
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});
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it("true parses as strict mode", () => {
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expectToFail({ sourceType: "script", strictMode: true });
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});
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});
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});
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});
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