import { describe, expect, it } from "vitest"; import { parseNativeReviewDiffFixture } from "./nativeReviewDiffParser"; describe("parseNativeReviewDiffFixture", () => {  it("adds word diff ranges to paired changed lines", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 9,      diff: [        "diff --git a/main.ts b/main.ts",        "index 1111111..2222222 100644",        "--- a/main.ts",        "+++ b/main.ts",        "@@ -1,3 +1,3 @@",        " const stable = true;",        '-const label = "Before value";',        '+const label = "After value";',        " const done = true;",      ].join("\n"),    });     const deletion = parsed.rows.find((row) => row.change === "delete");    const addition = parsed.rows.find((row) => row.change === "add");     expect(deletion?.wordDiffRanges).toEqual([{ start: 15, end: 21 }]);    expect(addition?.wordDiffRanges).toEqual([{ start: 15, end: 20 }]);  });   it("does not add word diff ranges to unpaired created lines", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 9,      diff: [        "diff --git a/new.ts b/new.ts",        "new file mode 100644",        "index 0000000..2222222",        "--- /dev/null",        "+++ b/new.ts",        "@@ -0,0 +1,2 @@",        '+const label = "After value";',        "+export default label;",      ].join("\n"),    });     expect(parsed.rows.filter((row) => row.kind === "line")).toHaveLength(2);    expect(parsed.rows.every((row) => row.wordDiffRanges === undefined)).toBe(true);  });   it("trims whitespace from word diff range edges", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 8,      diff: [        "diff --git a/main.tsx b/main.tsx",        "index 1111111..2222222 100644",        "--- a/main.tsx",        "+++ b/main.tsx",        "@@ -1,2 +1,2 @@",        "-    const status = disabled;",        "+    const status = enabled;",      ].join("\n"),    });     const deletion = parsed.rows.find((row) => row.change === "delete");    const addition = parsed.rows.find((row) => row.change === "add");     expect(deletion?.wordDiffRanges?.[0]?.start).toBeGreaterThanOrEqual(4);    expect(addition?.wordDiffRanges?.[0]?.start).toBeGreaterThanOrEqual(4);  });   it("keeps word diff ranges aligned to exact replacement columns", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 12,      diff: [        "diff --git a/main.ts b/main.ts",        "index 1111111..2222222 100644",        "--- a/main.ts",        "+++ b/main.ts",        "@@ -1,5 +1,5 @@",        "-const retryLimit = 2;",        "+const retryLimit = 4;",        '-const greeting = greeting.replace("{name}", "reviewer");',        '+const greeting = greeting.replace("{name}", "native reviewer");',      ].join("\n"),    });     const changedRows = parsed.rows.filter((row) => row.kind === "line");     expect(changedRows[0]?.wordDiffRanges).toEqual([{ start: 19, end: 20 }]);    expect(changedRows[1]?.wordDiffRanges).toEqual([{ start: 19, end: 20 }]);    expect(changedRows[2]?.wordDiffRanges).toBeUndefined();    expect(changedRows[3]?.wordDiffRanges).toEqual([{ start: 45, end: 51 }]);  });   it("suppresses noisy word diff ranges for unrelated replacement lines", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 8,      diff: [        "diff --git a/main.tsx b/main.tsx",        "index 1111111..2222222 100644",        "--- a/main.tsx",        "+++ b/main.tsx",        "@@ -1,2 +1,2 @@",        '-    case "file-header":',        "+    const status = enabled;",      ].join("\n"),    });     expect(parsed.rows.every((row) => row.wordDiffRanges === undefined)).toBe(true);  });   it("adds notice rows for pure renames and metadata-only changes", () => {    const parsed = parseNativeReviewDiffFixture({      id: "states",      label: "States",      filename: "states.diff",      lineCount: 16,      diff: [        "diff --git a/src/oldName.ts b/src/newName.ts",        "similarity index 100%",        "rename from src/oldName.ts",        "rename to src/newName.ts",        "diff --git a/scripts/run.sh b/scripts/run.sh",        "old mode 100644",        "new mode 100755",        "diff --git a/assets/logo.png b/assets/logo.png",        "new file mode 100644",        "index 000000000..4628f44da",        "--- /dev/null",        "+++ b/assets/logo.png",        "Binary files /dev/null and b/assets/logo.png differ",      ].join("\n"),    });     const noticeTexts = parsed.rows.filter((row) => row.kind === "notice").map((row) => row.text);     expect(noticeTexts).toEqual([      "This file was renamed without modifications.",      "File mode changed from 100644 to 100755.",      "Unsupported binary format. Diff contents are not available.",    ]);  });});