mirror of
https://github.com/getpaseo/paseo.git
synced 2026-11-06 08:24:46 +00:00
feat(protocol): define streamed diff revisions and resolve tag bases
This commit is contained in:
Mohamed Boudra
@@ -0,0 +1,240 @@
|
||||
import { expect, test } from "vitest";
|
||||
import { decodeDiffFrame, encodeDiffFrame } from "./diff.js";
|
||||
import { decodeBinaryFrame } from "./demux.js";
|
||||
import { decodePluginFrame } from "./plugin.js";
|
||||
|
||||
test("routes diff revisions independently of plugin frames", () => {
|
||||
const frame = {
|
||||
opcode: 0x40 as const,
|
||||
slot: 0,
|
||||
revision: 1,
|
||||
baseRevision: 0,
|
||||
baseSha: "",
|
||||
headSha: "",
|
||||
mergeBaseSha: "",
|
||||
entries: [],
|
||||
};
|
||||
const bytes = encodeDiffFrame(frame);
|
||||
expect([...bytes]).toEqual([64, 0, 1, 1, 0, 0, 0, 0, 0]);
|
||||
expect(decodeDiffFrame(bytes)).toEqual(frame);
|
||||
expect(decodeBinaryFrame(bytes)).toEqual({ kind: "diff", frame });
|
||||
expect(decodePluginFrame(bytes)).toBeNull();
|
||||
});
|
||||
|
||||
test("roundtrips Unicode runs and materializes the existing file shape", async () => {
|
||||
const { materializeDiffFile } = await import("./diff.js");
|
||||
const frame = {
|
||||
opcode: 0x41 as const,
|
||||
slot: 255,
|
||||
revision: 128,
|
||||
files: [
|
||||
{
|
||||
path: "é.ts",
|
||||
hunks: [
|
||||
{
|
||||
oldStart: 1,
|
||||
oldCount: 1,
|
||||
newStart: 1,
|
||||
newCount: 1,
|
||||
lines: [
|
||||
{
|
||||
type: "add" as const,
|
||||
content: "😀é",
|
||||
runs: [
|
||||
{ style: "string", length: 2 },
|
||||
{ style: null, length: 2 },
|
||||
],
|
||||
},
|
||||
],
|
||||
},
|
||||
],
|
||||
},
|
||||
],
|
||||
};
|
||||
expect(decodeDiffFrame(encodeDiffFrame(frame))).toEqual(frame);
|
||||
const file = materializeDiffFile(
|
||||
{
|
||||
path: "é.ts",
|
||||
oldPath: null,
|
||||
change: "modified",
|
||||
content: "text",
|
||||
additions: 1,
|
||||
deletions: 1,
|
||||
body: true,
|
||||
},
|
||||
frame.files[0],
|
||||
false,
|
||||
);
|
||||
expect(file.hunks[0].lines[0].tokens).toEqual([
|
||||
{ text: "😀", style: "string" },
|
||||
{ text: "é", style: null },
|
||||
]);
|
||||
});
|
||||
|
||||
test("preserves binary additions, modifications, deletions and mode-only text", async () => {
|
||||
const { materializeDiffFile } = await import("./diff.js");
|
||||
for (const change of ["added", "modified", "deleted"] as const) {
|
||||
const entry = {
|
||||
path: "image.png",
|
||||
oldPath: null,
|
||||
change,
|
||||
content: "binary" as const,
|
||||
additions: 0,
|
||||
deletions: 0,
|
||||
body: false,
|
||||
};
|
||||
const begin = {
|
||||
opcode: 0x40 as const,
|
||||
slot: 1,
|
||||
revision: 1,
|
||||
baseRevision: 0,
|
||||
baseSha: "",
|
||||
headSha: "",
|
||||
mergeBaseSha: "",
|
||||
entries: [entry],
|
||||
};
|
||||
expect(decodeDiffFrame(encodeDiffFrame(begin))).toEqual(begin);
|
||||
expect(materializeDiffFile(entry, null, false)).toEqual({
|
||||
path: "image.png",
|
||||
isNew: change === "added",
|
||||
isDeleted: change === "deleted",
|
||||
additions: 0,
|
||||
deletions: 0,
|
||||
status: "binary",
|
||||
hunks: [],
|
||||
});
|
||||
}
|
||||
expect(
|
||||
materializeDiffFile(
|
||||
{
|
||||
path: "script",
|
||||
oldPath: null,
|
||||
change: "modified",
|
||||
content: "text",
|
||||
additions: 0,
|
||||
deletions: 0,
|
||||
body: true,
|
||||
},
|
||||
{ path: "script", hunks: [] },
|
||||
false,
|
||||
),
|
||||
).toEqual({
|
||||
path: "script",
|
||||
isNew: false,
|
||||
isDeleted: false,
|
||||
additions: 0,
|
||||
deletions: 0,
|
||||
status: "ok",
|
||||
hunks: [],
|
||||
});
|
||||
});
|
||||
|
||||
test("rejects every truncated prefix, unknown version, trailing data, and invalid coverage", () => {
|
||||
const end = {
|
||||
opcode: 0x42 as const,
|
||||
slot: 1,
|
||||
revision: 9007199254740991,
|
||||
diffTooLarge: true,
|
||||
omitted: ["a.ts"],
|
||||
error: { code: "REF_NOT_FOUND" as const, message: "missing" },
|
||||
};
|
||||
const bytes = encodeDiffFrame(end);
|
||||
expect(decodeDiffFrame(bytes)).toEqual(end);
|
||||
for (let length = 0; length < bytes.length; length++)
|
||||
expect(() => decodeDiffFrame(bytes.slice(0, length))).toThrow();
|
||||
const version = bytes.slice();
|
||||
version[2] = 2;
|
||||
expect(() => decodeDiffFrame(version)).toThrow("version");
|
||||
expect(() => decodeDiffFrame(Uint8Array.from([...bytes, 0]))).toThrow("Trailing");
|
||||
expect(() =>
|
||||
encodeDiffFrame({
|
||||
opcode: 0x41,
|
||||
slot: 1,
|
||||
revision: 1,
|
||||
files: [
|
||||
{
|
||||
path: "x",
|
||||
hunks: [
|
||||
{
|
||||
oldStart: 0,
|
||||
oldCount: 0,
|
||||
newStart: 1,
|
||||
newCount: 1,
|
||||
lines: [{ type: "add", content: "😀", runs: [{ style: null, length: 1 }] }],
|
||||
},
|
||||
],
|
||||
},
|
||||
],
|
||||
}),
|
||||
).toThrow("cover");
|
||||
});
|
||||
|
||||
test("uses fixed UTF-8 byte vectors while runs count UTF-16 units", () => {
|
||||
const bytes = Uint8Array.from([
|
||||
65, 0, 1, 1, 1, 1, 120, 1, 0, 0, 1, 1, 1, 129, 7, 240, 159, 152, 128, 101, 204, 129, 1, 3, 4,
|
||||
]);
|
||||
const frame = {
|
||||
opcode: 0x41 as const,
|
||||
slot: 0,
|
||||
revision: 1,
|
||||
files: [
|
||||
{
|
||||
path: "x",
|
||||
hunks: [
|
||||
{
|
||||
oldStart: 0,
|
||||
oldCount: 0,
|
||||
newStart: 1,
|
||||
newCount: 1,
|
||||
lines: [
|
||||
{ type: "add" as const, content: "😀é", runs: [{ style: "string", length: 4 }] },
|
||||
],
|
||||
},
|
||||
],
|
||||
},
|
||||
],
|
||||
};
|
||||
expect(encodeDiffFrame(frame)).toEqual(bytes);
|
||||
expect(decodeDiffFrame(bytes)).toEqual(frame);
|
||||
const unknownStyle = bytes.slice();
|
||||
unknownStyle[23] = 255;
|
||||
expect(decodeDiffFrame(unknownStyle)).toEqual({
|
||||
...frame,
|
||||
files: [
|
||||
{
|
||||
...frame.files[0],
|
||||
hunks: [
|
||||
{
|
||||
...frame.files[0].hunks[0],
|
||||
lines: [{ type: "add", content: "😀é", runs: [{ style: null, length: 4 }] }],
|
||||
},
|
||||
],
|
||||
},
|
||||
],
|
||||
});
|
||||
});
|
||||
|
||||
test("roundtrips generated entry lists across varint boundaries", () => {
|
||||
for (const revision of [0, 1, 127, 128, 16383, 16384, 4294967296, Number.MAX_SAFE_INTEGER]) {
|
||||
const entries = Array.from({ length: 130 }, (_, index) => ({
|
||||
path: `src/${index}-😀.ts`,
|
||||
oldPath: `old/${index}.ts`,
|
||||
change: "renamed" as const,
|
||||
content: "text" as const,
|
||||
additions: index * 128,
|
||||
deletions: index,
|
||||
body: true,
|
||||
}));
|
||||
const begin = {
|
||||
opcode: 0x40 as const,
|
||||
slot: 255,
|
||||
revision,
|
||||
baseRevision: 0,
|
||||
baseSha: "base",
|
||||
headSha: "head",
|
||||
mergeBaseSha: "merge",
|
||||
entries,
|
||||
};
|
||||
expect(decodeDiffFrame(encodeDiffFrame(begin))).toEqual(begin);
|
||||
}
|
||||
});
|
||||
Reference in New Issue
Block a user