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test(studio-server): pin how an older history log takes in the media ledger (#5021)

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* test(studio-server): pin how an older history log takes in the media ledger

Four guards in the take-in had no test that failed without them: the start already naming the ledger, a change that made it, setting the keepsLedger mark, and saving it.

* test(studio-server): put the undoNewest note back on undoNewest
This commit is contained in:
Miguel Ángel
2026-10-04 22:17:26 +00:00
committed by GitHub
parent 00553e685c
commit f70dce70ed
1 changed files with 50 additions and 6 deletions
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packages/studio-server/src/history/projectHistory.test.ts
+50 -6
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@@ -70,20 +70,20 @@ async function project(files: Record<string, string | Buffer>, options = {}) {
return { projectDir, historyRoot, history, write, read, has };
}
/** Undoes the newest change still in effect, whoever made it; Cmd+Z steps only over the caller's own. */
/** What 0.8.123 leaves: a log whose baseline never names the media ledger and carries no marker. */
function asWrittenBy0_8_123(logFile: string) {
/** A log as an older version leaves it: no marker; 0.8.123's baseline also never names the media ledger. */
function asWrittenBy(version: "0.8.122" | "0.8.123", logFile: string) {
const lines = readFileSync(logFile, "utf-8")
.trim()
.split("\n")
.map((line) => JSON.parse(line));
for (const record of lines.filter((line) => line.type === "baseline")) {
delete record.files[".media/manifest.jsonl"];
if (version === "0.8.123") delete record.files[".media/manifest.jsonl"];
delete record.keepsLedger;
}
writeFileSync(logFile, lines.map((record) => JSON.stringify(record)).join("\n") + "\n");
}
/** Undoes the newest change still in effect, whoever made it; Cmd+Z steps only over the caller's own. */
async function undoNewest(history: ProjectHistory) {
const newest = [...history.list()].reverse().find((entry) => !entry.undoes && !entry.undone);
return history.undo(newest!.id, { who: you });
@@ -221,7 +221,7 @@ describe("openProjectHistory", () => {
});
await change(history, you, "Your edit", () => write("index.html", "B"));
await history.close();
asWrittenBy0_8_123(join(historyRoot, history.projectId, "log.jsonl"));
asWrittenBy("0.8.123", join(historyRoot, history.projectId, "log.jsonl"));
const reopened = await open(projectDir, historyRoot);
expect(await reopened.step("back", you)).toMatchObject({ ok: true });
expect([read("index.html"), read(".media/manifest.jsonl")]).toEqual(["A", "{}\n"]);
@@ -236,7 +236,7 @@ describe("openProjectHistory", () => {
{ quietMs: 30 },
);
await history.close();
asWrittenBy0_8_123(join(historyRoot, history.projectId, "log.jsonl"));
asWrittenBy("0.8.123", join(historyRoot, history.projectId, "log.jsonl"));
const outside = tempDir("hf-history-linked-");
writeFileSync(join(outside, "manifest.jsonl"), "{}\n");
symlinkSync(outside, join(projectDir, ".media"), "dir");
@@ -265,6 +265,50 @@ describe("openProjectHistory", () => {
expect([read("index.html"), has(".media/manifest.jsonl")]).toEqual(["A", false]);
});
it("a log 0.8.123 wrote without a ledger takes none in, and one made later while closed is a change", async () => {
const { history, write, projectDir, historyRoot } = await project(
{ "index.html": "A" },
{ quietMs: 30 },
);
await history.close();
asWrittenBy("0.8.123", join(historyRoot, history.projectId, "log.jsonl"));
await (await open(projectDir, historyRoot, { quietMs: 30 })).close();
write(".media/manifest.jsonl", "{}\n");
const reopened = await open(projectDir, historyRoot, { quietMs: 30 });
await reopened.flush();
expect(reopened.list().map((entry) => entry.files.map((file) => file.path))).toEqual([
[".media/manifest.jsonl"],
]);
});
it("an older log keeps a ledger one of its changes made out of the start", async () => {
const { history, write, has, projectDir, historyRoot } = await project({ "index.html": "A" });
await change(history, agent, "Cut out the logo", () => {
write("index.html", "B");
write(".media/manifest.jsonl", "{}\n");
});
await history.close();
asWrittenBy("0.8.122", join(historyRoot, history.projectId, "log.jsonl"));
const reopened = await open(projectDir, historyRoot);
await reopened.restore(START, you);
expect(has(".media/manifest.jsonl")).toBe(false);
});
it("an older log keeps the ledger its start names, so a change made while closed is filed", async () => {
const { history, write, projectDir, historyRoot } = await project(
{ "index.html": "A", ".media/manifest.jsonl": "{}\n" },
{ quietMs: 30 },
);
await history.close();
asWrittenBy("0.8.122", join(historyRoot, history.projectId, "log.jsonl"));
write(".media/manifest.jsonl", '{}\n{"id":"logo"}\n');
const reopened = await open(projectDir, historyRoot, { quietMs: 30 });
await reopened.flush();
expect(reopened.list().map((entry) => entry.files.map((file) => file.path))).toEqual([
[".media/manifest.jsonl"],
]);
});
it("takes the media ledger back with the film when a change is undone", async () => {
const { history, write, read } = await project({
"index.html": "<h1>Hello</h1>",