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pegjs/spec/unit/compiler/passes/report-duplicate-rules.spec.js

21 lines
542 B
JavaScript

"use strict";
let peg = require("../../../../lib/peg");
describe("compiler pass |reportDuplicateRules|", function() {
let pass = peg.compiler.passes.check.reportDuplicateRules;
it("reports duplicate rules", function() {
expect(pass).toReportError([
"start = 'a'",
"start = 'b'"
].join("\n"), {
message: "Rule \"start\" is already defined at line 1, column 1.",
location: {
start: { offset: 12, line: 2, column: 1 },
end: { offset: 23, line: 2, column: 12 }
}
});
});
});