can1357
2efd667916
- Removed the mid-skip placeholder line that was output when skipping lines in the middle of a diff, relying instead on the line number jump to convey the gap. Removed the corresponding placeholder-filtering logic from the hashline diff preview that was handling these placeholders.
26 lines
1.1 KiB
TypeScript
26 lines
1.1 KiB
TypeScript
import { describe, expect, it } from "bun:test";
|
|
import { generateDiffString } from "../../src/edit/diff";
|
|
|
|
describe("generateDiffString", () => {
|
|
it("collapses unchanged lines between distant edits", () => {
|
|
const oldLines = Array.from({ length: 20 }, (_, index) => `line ${index + 1}`);
|
|
const newLines = [...oldLines];
|
|
newLines[1] = "line 2 changed";
|
|
newLines[17] = "line 18 changed";
|
|
|
|
const result = generateDiffString(oldLines.join("\n"), newLines.join("\n"), 2);
|
|
const diffLines = result.diff.split("\n");
|
|
|
|
// The mid-skip emits no placeholder row; the jump from the leading
|
|
// context (line 4) to the trailing context (line 16) conveys the gap.
|
|
expect(diffLines.some(line => line.endsWith("|...") || line.endsWith("|…"))).toBe(false);
|
|
expect(diffLines[diffLines.indexOf(" 4|line 4") + 1]).toBe(" 16|line 16");
|
|
expect(diffLines).toContain("-2|line 2");
|
|
expect(diffLines).toContain("+2|line 2 changed");
|
|
expect(diffLines).toContain("-18|line 18");
|
|
expect(diffLines).toContain("+18|line 18 changed");
|
|
expect(diffLines).not.toContain(" 8|line 8");
|
|
expect(diffLines).not.toContain(" 12|line 12");
|
|
});
|
|
});
|