46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
import { parseApplyPatch } from "../src/lib/parse-apply-patch";
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import { expect, test, describe } from "vitest";
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// Helper function to unwrap a non‑null result in tests that expect success.
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function mustParse(patch: string) {
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const parsed = parseApplyPatch(patch);
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if (parsed == null) {
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throw new Error(
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"Expected patch to be valid, but parseApplyPatch returned null",
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);
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}
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return parsed;
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}
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describe("parseApplyPatch", () => {
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test("parses create, update and delete operations in a single patch", () => {
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const patch = `*** Begin Patch\n*** Add File: created.txt\n+hello\n+world\n*** Update File: updated.txt\n@@\n-old\n+new\n*** Delete File: removed.txt\n*** End Patch`;
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const ops = mustParse(patch);
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expect(ops).toEqual([
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{
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type: "create",
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path: "created.txt",
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content: "hello\nworld",
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},
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{
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type: "update",
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path: "updated.txt",
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update: "@@\n-old\n+new",
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added: 1,
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deleted: 1,
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},
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{
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type: "delete",
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path: "removed.txt",
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},
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]);
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});
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test("returns null for an invalid patch (missing prefix)", () => {
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const invalid = `*** Add File: foo.txt\n+bar\n*** End Patch`;
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expect(parseApplyPatch(invalid)).toBeNull();
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});
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});
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