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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | 3x 3x 482x 482x 482x 482x 1481x 1454x 482x 482x 482x 482x 482x 1454x 1481x 482x 482x 482x 482x 482x 482x | import * as diff from '../str';
export const assertPatch = (src: string, dst: string, patch: diff.Patch = diff.diff(src, dst)) => {
const src1 = diff.src(patch);
const dst1 = diff.dst(patch);
let dst2 = src;
diff.apply(
patch,
dst2.length,
(pos, str) => {
dst2 = dst2.slice(0, pos) + str + dst2.slice(pos);
},
(pos, len) => {
dst2 = dst2.slice(0, pos) + dst2.slice(pos + len);
},
);
const inverted = diff.invert(patch);
const src2 = diff.dst(inverted);
const dst3 = diff.src(inverted);
let src3 = dst;
diff.apply(
inverted,
src3.length,
(pos, str) => {
src3 = src3.slice(0, pos) + str + src3.slice(pos);
},
(pos, len) => {
src3 = src3.slice(0, pos) + src3.slice(pos + len);
},
);
expect(src1).toBe(src);
expect(src2).toBe(src);
expect(src3).toBe(src);
expect(dst1).toBe(dst);
expect(dst2).toBe(dst);
expect(dst3).toBe(dst);
};
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