/
options.js
59 lines (50 loc) 路 1.56 KB
/
options.js
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import { parse } from "../lib";
describe("options", () => {
describe("strictMode", () => {
const CODE = "function f(x, x) {}";
function expectToSucceed(opts) {
expect(parse(CODE, opts).program.body[0]).toMatchObject({
type: "FunctionDeclaration",
id: { type: "Identifier", name: "f" },
generator: false,
async: false,
params: [
{ type: "Identifier", name: "x" },
{ type: "Identifier", name: "x" },
],
body: {
type: "BlockStatement",
body: [],
directives: [],
},
});
}
function expectToFail(opts) {
expect(() => parse(CODE, opts)).toThrow(
new SyntaxError("Argument name clash. (1:14)"),
);
}
describe("sourceType module", () => {
it("default parses as strict mode", () => {
expectToFail({ sourceType: "module" });
});
it("false parses as sloppy mode", () => {
expectToSucceed({ sourceType: "module", strictMode: false });
});
it("true parses as strict mode", () => {
expectToFail({ sourceType: "module", strictMode: true });
});
});
describe("sourceType script", () => {
it("default parses as sloppy mode", () => {
expectToSucceed({ sourceType: "script" });
});
it("false parses as sloppy mode", () => {
expectToSucceed({ sourceType: "script", strictMode: false });
});
it("true parses as strict mode", () => {
expectToFail({ sourceType: "script", strictMode: true });
});
});
});
});