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refactor(agent): harden harness session semantics

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This commit is contained in:
Mario Zechner
2026-05-16 00:32:16 +02:00
parent a8af0b5e99
commit 4f40f62b7b
23 changed files with 1112 additions and 873 deletions
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21
packages/agent/test/harness/nodejs-env.test.ts
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@@ -27,6 +27,7 @@ describe("NodeExecutionEnv", () => {
getOrThrow(await env.writeFile("nested/child/file.txt", "hel"));
getOrThrow(await env.appendFile("nested/child/file.txt", "lo"));
expect(getOrThrow(await env.readTextFile("nested/child/file.txt"))).toBe("hello");
expect(getOrThrow(await env.readTextLines("nested/child/file.txt", { maxLines: 1 }))).toEqual(["hello"]);
expect(Buffer.from(getOrThrow(await env.readBinaryFile("nested/child/file.txt"))).toString("utf8")).toBe("hello");
const entries = getOrThrow(await env.listDir("nested/child"));
@@ -91,6 +92,13 @@ describe("NodeExecutionEnv", () => {
]);
});
it("stops reading text lines at the requested limit", async () => {
const root = createTempDir();
const env = new NodeExecutionEnv({ cwd: root });
getOrThrow(await env.writeFile("file.txt", "one\ntwo\nthree"));
expect(getOrThrow(await env.readTextLines("file.txt", { maxLines: 1 }))).toEqual(["one"]);
});
it("returns FileError for missing paths and keeps exists false for missing paths", async () => {
const root = createTempDir();
const env = new NodeExecutionEnv({ cwd: root });
@@ -155,7 +163,7 @@ describe("NodeExecutionEnv", () => {
getOrThrow(await env.remove("missing", { force: true }));
});
it("returns aborted results for pre-aborted file operations", async () => {
it("returns aborted results for pre-aborted cancellable file operations", async () => {
const root = createTempDir();
const env = new NodeExecutionEnv({ cwd: root });
getOrThrow(await env.writeFile("file.txt", "hello"));
@@ -165,17 +173,10 @@ describe("NodeExecutionEnv", () => {
const results = await Promise.all([
env.readTextFile("file.txt", signal),
env.readTextLines("file.txt", { abortSignal: signal }),
env.readBinaryFile("file.txt", signal),
env.writeFile("other.txt", "hello", signal),
env.appendFile("other.txt", "hello", signal),
env.fileInfo("file.txt", signal),
env.listDir(".", signal),
env.canonicalPath("file.txt", signal),
env.exists("file.txt", signal),
env.createDir("dir", { abortSignal: signal }),
env.remove("file.txt", { abortSignal: signal }),
env.createTempDir("node-env-test-", signal),
env.createTempFile({ abortSignal: signal }),
]);
for (const result of results) {
expect(result.ok).toBe(false);
@@ -244,7 +245,7 @@ describe("NodeExecutionEnv", () => {
},
});
expect(result.ok).toBe(false);
if (!result.ok) expect(result.error).toMatchObject({ code: "unknown", message: "callback failed" });
if (!result.ok) expect(result.error).toMatchObject({ code: "callback_error", message: "callback failed" });
});
it("returns shell unavailable and spawn errors", async () => {