import { describe, expect, it } from "vite-plus/test"; import { parseTurnDiffFilesFromUnifiedDiff } from "./Diffs.ts"; describe("parseTurnDiffFilesFromUnifiedDiff", () => {  it("returns empty list for empty diff", () => {    expect(parseTurnDiffFilesFromUnifiedDiff("")).toEqual([]);  });   it("parses per-file additions and deletions", () => {    const diff = [      "diff --git a/a.txt b/a.txt",      "index 1111111..2222222 100644",      "--- a/a.txt",      "+++ b/a.txt",      "@@ -1,2 +1,3 @@",      " one",      "-two",      "+two updated",      "+three",      "diff --git a/src/b.ts b/src/b.ts",      "index 3333333..4444444 100644",      "--- a/src/b.ts",      "+++ b/src/b.ts",      "@@ -3,2 +3,0 @@",      "-old",      "-stale",      "",    ].join("\n");     expect(parseTurnDiffFilesFromUnifiedDiff(diff)).toEqual([      { path: "a.txt", additions: 2, deletions: 1 },      { path: "src/b.ts", additions: 0, deletions: 2 },    ]);  });   it("parses rename-only diffs with zero line changes", () => {    const diff = [      "diff --git a/src/old.ts b/src/new.ts",      "similarity index 100%",      "rename from src/old.ts",      "rename to src/new.ts",      "",    ].join("\n");     expect(parseTurnDiffFilesFromUnifiedDiff(diff)).toEqual([      { path: "src/new.ts", additions: 0, deletions: 0 },    ]);  });   it("normalizes CRLF input before parsing", () => {    const diff = [      "diff --git a/a.txt b/a.txt",      "index 1111111..2222222 100644",      "--- a/a.txt",      "+++ b/a.txt",      "@@ -1 +1,2 @@",      "-one",      "+one updated",      "+two",      "",    ].join("\r\n");     expect(parseTurnDiffFilesFromUnifiedDiff(diff)).toEqual([      { path: "a.txt", additions: 2, deletions: 1 },    ]);  });});