39 lines
1.4 KiB
TypeScript
39 lines
1.4 KiB
TypeScript
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// Tests for the PR description tool helpers (pure functions).
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import { describe, expect, test } from "bun:test";
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import {
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deriveLabels,
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sanitizeDiagram,
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insertBrAfterXChars,
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} from "../src/describe";
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describe("describe helpers", () => {
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test("deriveLabels from type list", () => {
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expect(deriveLabels({ type: ["Bug fix", "Enhancement"] })).toEqual([
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"Bug fix",
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"Enhancement",
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]);
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expect(deriveLabels({ type: "Bug fix, Tests" })).toEqual(["Bug fix", "Tests"]);
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expect(deriveLabels({ labels: ["Bug fix"], type: ["Other"] })).toEqual(["Bug fix"]);
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expect(deriveLabels({})).toEqual([]);
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});
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test("sanitizeDiagram strips fences and rejects non-diagrams", () => {
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expect(sanitizeDiagram("```mermaid\nflowchart LR\n A --> B\n```")).toBe(
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"flowchart LR\n A --> B",
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);
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expect(sanitizeDiagram("plain text without diagram")).toBe("");
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expect(sanitizeDiagram("")).toBe("");
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expect(sanitizeDiagram("graph TD\n A --> B")).toBe("graph TD\n A --> B");
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});
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test("insertBrAfterXChars wraps long text", () => {
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const long = "a".repeat(80);
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const wrapped = insertBrAfterXChars(long, 70);
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expect(wrapped).toContain("<br>");
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expect(wrapped.replace(/<br>/g, "")).toBe(long);
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// html tags don't count toward the budget
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const withTag = insertBrAfterXChars("<code>abcdef</code>", 70);
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expect(withTag.length).toBe("<code>abcdef</code>".length);
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});
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});
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