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fc93158 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | import { describe, expect, it } from "vitest";
import { findCodeRegions, isInsideCode } from "./code-regions.js";
describe("shared/text/code-regions", () => {
it("finds fenced and inline code regions without double-counting inline code inside fences", () => {
const text = [
"before `inline` after",
"```ts",
"const a = `inside fence`;",
"```",
"tail",
].join("\n");
const regions = findCodeRegions(text);
expect(regions).toHaveLength(2);
expect(text.slice(regions[0].start, regions[0].end)).toBe("`inline`");
expect(text.slice(regions[1].start, regions[1].end)).toContain("```ts");
});
it("accepts alternate fence markers and unterminated trailing fences", () => {
const text = "~~~js\nconsole.log(1)\n~~~\nplain\n```\nunterminated";
const regions = findCodeRegions(text);
expect(regions).toHaveLength(2);
expect(text.slice(regions[0].start, regions[0].end)).toContain("~~~js");
expect(text.slice(regions[1].start, regions[1].end)).toBe("```\nunterminated");
});
it("keeps adjacent inline code outside fenced regions", () => {
const text = ["```ts", "const a = 1;", "```", "after `inline` tail"].join("\n");
const regions = findCodeRegions(text);
expect(regions).toHaveLength(2);
expect(text.slice(regions[0].start, regions[0].end)).toContain("```ts");
expect(text.slice(regions[1].start, regions[1].end)).toBe("`inline`");
});
it("reports whether positions are inside discovered regions", () => {
const text = "plain `code` done";
const regions = findCodeRegions(text);
const codeStart = text.indexOf("code");
const plainStart = text.indexOf("plain");
const regionEnd = regions[0]?.end ?? -1;
expect(isInsideCode(codeStart, regions)).toBe(true);
expect(isInsideCode(plainStart, regions)).toBe(false);
expect(isInsideCode(regionEnd, regions)).toBe(false);
});
});
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