720 lines
23 KiB
TypeScript
720 lines
23 KiB
TypeScript
import { createHash } from "node:crypto";
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import { mkdir, symlink, writeFile } from "node:fs/promises";
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import { join } from "node:path";
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import { expect } from "vitest";
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import { toolContract } from "../../src/contracts/toolContracts.js";
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import {
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marshalCode,
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pythonPycFixture,
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pythonPycHeader,
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} from "../../src/python/PythonPyc.fixture.js";
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import { createTestTempDirectory } from "../fixtures/temporaryDirectory.js";
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import { cliTest } from "../support/cli/cliFixture.js";
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const marshalUtf8 = (bytes: Buffer): Buffer => {
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const length = Buffer.alloc(4);
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length.writeUInt32LE(bytes.length);
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return Buffer.concat([Buffer.from([0x75]), length, bytes]);
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};
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const marshalInt64 = (value: bigint): Buffer => {
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const payload = Buffer.alloc(8);
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payload.writeBigInt64LE(value);
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return Buffer.concat([Buffer.from([0x49]), payload]);
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};
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const marshalInt32 = (value: number): Buffer => {
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const payload = Buffer.alloc(4);
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payload.writeInt32LE(value);
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return Buffer.concat([Buffer.from([0x69]), payload]);
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};
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const marshalSingleItemTuple = (item: Buffer): Buffer =>
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Buffer.concat([Buffer.from([0x29, 1]), item]);
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cliTest(
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"reads backward-compatible signed 64-bit marshal integers",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-int64-");
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for (const [name, value, bits] of [
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["positive", 42n, 6],
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["negative", -1n, 1],
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["minimum", -(1n << 63n), 64],
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["maximum", (1n << 63n) - 1n, 63],
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] as const) {
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const path = join(root, `${name}.pyc`);
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await writeFile(
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path,
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Buffer.concat([
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pythonPycHeader(3531),
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marshalCode("py311", {
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constsObject: marshalSingleItemTuple(marshalInt64(value)),
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}),
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]),
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);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.code_objects[0]?.consts).toContainEqual(
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{ kind: "int", bits, value: value.toString() },
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);
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}
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const ordinaryIntPath = join(root, "ordinary-int.pyc");
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await writeFile(
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ordinaryIntPath,
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Buffer.concat([
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pythonPycHeader(3531),
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marshalCode("py311", {
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constsObject: marshalSingleItemTuple(marshalInt32(-42)),
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}),
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]),
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);
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const ordinaryInt = await cli.run({
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arguments: ["inspect-python-pyc", ordinaryIntPath, "--json"],
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});
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expect(ordinaryInt.exitCode, ordinaryInt.stderr).toBe(0);
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const ordinaryEvidence = toolContract(
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"inspect_python_pyc",
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).outputSchema.parse(ordinaryInt.json);
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expect(
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ordinaryEvidence.normalized_result.code_objects[0]?.consts,
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).toContainEqual({ kind: "int", bits: 6, value: "-42" });
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const truncatedPath = join(root, "truncated.pyc");
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await writeFile(
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truncatedPath,
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Buffer.concat([
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pythonPycHeader(3531),
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Buffer.from([0x49]),
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Buffer.alloc(7),
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]),
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);
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const truncated = await cli.run({
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arguments: ["inspect-python-pyc", truncatedPath, "--json"],
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});
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expect(truncated.exitCode).toBe(1);
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expect(truncated.json).toMatchObject({
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code: "invalid_request",
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details: {
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operation: "inspect_python_pyc",
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issues: [
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{
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reason: "invalid_format",
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message: expect.stringContaining("64-bit integer"),
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},
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],
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},
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});
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},
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);
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cliTest(
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"uses magic-specific cache tables for synthetic pyc bytecode equality",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-inline-cache-");
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const cases = [
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{ magic: 3495, opcode: 166, cacheUnits: 1 },
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{ magic: 3500, opcode: 25, cacheUnits: 4 },
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{ magic: 3524, opcode: 25, cacheUnits: 1 },
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{ magic: 3531, opcode: 106, cacheUnits: 9 },
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{ magic: 3550, opcode: 25, cacheUnits: 1 },
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{ magic: 3553, opcode: 25, cacheUnits: 1 },
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{ magic: 3564, opcode: 58, cacheUnits: 1 },
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{ magic: 3571, opcode: 81, cacheUnits: 9 },
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];
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for (const { magic, opcode, cacheUnits } of cases) {
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const cache = Buffer.alloc(cacheUnits * 2);
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const bytecode = (arg: number, cachePayload: Buffer) =>
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Buffer.concat([
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Buffer.from([opcode, arg]),
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cachePayload,
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Buffer.from([83, 0]),
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]);
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const changedCache = Buffer.from(cache);
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changedCache[0] = 1;
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const frozenSet = Buffer.concat([
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Buffer.from([0x3e, 4, 0, 0, 0]),
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...[
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bytecode(0, cache),
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bytecode(0, changedCache),
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bytecode(1, cache),
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Buffer.concat([bytecode(0, cache), Buffer.from([0, 0])]),
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].map((code) => marshalCode("py311", { bytecode: code })),
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]);
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const pyc = Buffer.concat([
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pythonPycHeader(magic),
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marshalCode("py311", { consts: [frozenSet] }),
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]);
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const path = join(root, `inline-caches-${magic}.pyc`);
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await writeFile(path, pyc);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(
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result.exitCode,
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`${result.stderr}\n${JSON.stringify(result.json)}`,
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).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.code_objects[0]?.consts).toEqual([
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expect.objectContaining({ kind: "frozenset", length: 3 }),
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]);
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expect(evidence.normalized_result.code_objects[1]?.bytecode).toEqual({
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bytes: bytecode(0, cache).length,
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sha256: createHash("sha256").update(bytecode(0, cache)).digest("hex"),
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});
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expect(evidence.normalized_result.artifact.sha256).toBe(
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createHash("sha256").update(pyc).digest("hex"),
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);
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}
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},
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);
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cliTest(
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"keeps distinct Python code names distinct when JavaScript display strings collide",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-unicode-name-");
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const scalar = Buffer.from([0xf0, 0x9f, 0x98, 0x80]);
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const surrogatePair = Buffer.from([0xed, 0xa0, 0xbd, 0xed, 0xb8, 0x80]);
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const code = (name: Buffer) =>
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marshalCode("py311", {
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nameObject: marshalUtf8(name),
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qualnameObject: marshalUtf8(name),
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});
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const frozenSet = Buffer.concat([
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Buffer.from([0x3e, 2, 0, 0, 0]),
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code(scalar),
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code(surrogatePair),
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]);
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const path = join(root, "unicode-names.pyc");
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await writeFile(
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path,
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Buffer.concat([
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pythonPycHeader(3531),
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marshalCode("py311", { consts: [frozenSet] }),
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]),
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);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(
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result.exitCode,
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`${result.stderr}\n${JSON.stringify(result.json)}`,
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).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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const codes = evidence.normalized_result.code_objects;
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expect(codes[1]?.name).toBe(codes[2]?.name);
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expect(codes[0]?.consts).toEqual([
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expect.objectContaining({ kind: "frozenset", length: 2 }),
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]);
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},
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);
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cliTest(
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"reports nested CPython code objects through the public CLI",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-cli-");
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const path = join(root, "sample.pyc");
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await writeFile(path, pythonPycFixture("py311", { nested: true }));
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.header.python_version).toBe("3.12");
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expect(evidence.normalized_result.code_objects[1]?.name).toBe("inner");
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},
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);
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cliTest(
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"classifies unsupported 3.7 alpha headers without labeling their marshal data malformed",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-alpha-header-");
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const marshal = Buffer.from(
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"e3000000000000000000000000010000004000000073040000006400530029014ea900720100000072010000007201000000fa066d6f642e7079da083c6d6f64756c653e010000007300000000",
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"hex",
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);
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expect(marshal).toHaveLength(77);
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for (const magic of [3390, 3391]) {
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const path = join(root, `${magic}.pyc`);
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const header = Buffer.alloc(12);
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header.writeUInt16LE(magic);
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header[2] = 0x0d;
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header[3] = 0x0a;
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await writeFile(path, Buffer.concat([header, marshal]));
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode).toBe(1);
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expect(result.json).toMatchObject({
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code: "unsupported_target",
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category: "unsupported_target",
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});
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expect(JSON.stringify(result.json)).toContain(
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"unsupported 12-byte CPython header",
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);
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expect(result.json).not.toHaveProperty("normalized_result");
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}
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for (const magic of [3392, 3394]) {
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const path = join(root, `${magic}.pyc`);
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await writeFile(path, Buffer.concat([pythonPycHeader(magic), marshal]));
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.header.magic).toBe(magic);
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expect(evidence.normalized_result.code_objects[0]?.bytecode.bytes).toBe(
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4,
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);
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}
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},
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);
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cliTest(
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"preserves historical signed code fields and reports the ambiguous 3410 constructor revision",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-signed-fields-");
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for (const { name, magic, layout, fields, expected } of [
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{
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name: "zero",
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magic: 3531,
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layout: "py311",
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fields: { flags: 0 },
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expected: { stacksize: 1, flags: 0 },
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},
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{
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name: "unknown-positive-flags",
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magic: 3531,
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layout: "py311",
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fields: { flags: 0x40000000 },
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expected: { stacksize: 1, flags: 0x40000000 },
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},
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{
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name: "negative-stacksize-py37",
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magic: 3394,
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layout: "py37",
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fields: { stacksize: 0xffffffff },
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expected: { stacksize: -1, flags: 0 },
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},
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{
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name: "negative-flags-py38-alpha",
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magic: 3401,
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layout: "py37",
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fields: { flags: 0x80000000 },
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expected: { stacksize: 1, flags: -0x80000000 },
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},
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{
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name: "negative-stack-and-flags-py38-ambiguous",
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magic: 3410,
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layout: "py38",
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fields: { stacksize: 0xffffffff, flags: 0x80000000 },
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expected: { stacksize: -1, flags: -0x80000000 },
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},
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] as const) {
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const path = join(root, `${name}.pyc`);
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await writeFile(
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path,
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Buffer.concat([pythonPycHeader(magic), marshalCode(layout, fields)]),
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);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.code_objects[0]).toMatchObject(
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expected,
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);
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if (magic === 3410)
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expect(evidence.normalized_result.limitations).toEqual(
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expect.arrayContaining([
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expect.stringContaining("Magic 3410 is shared"),
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]),
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);
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}
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},
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);
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cliTest(
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"rejects negative code fields after the pinned constructor validation transition",
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async ({ cli }) => {
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const root = await createTestTempDirectory(
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"rea-python-pyc-signed-rejection-",
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);
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for (const { name, magic, layout, fields, message } of [
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{
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name: "negative-stacksize-py38-b2",
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magic: 3411,
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layout: "py38",
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fields: { stacksize: 0xffffffff },
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message: "co_stacksize is negative",
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},
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{
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name: "negative-flags-py38-b2",
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magic: 3411,
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layout: "py38",
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fields: { flags: 0x80000000 },
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message: "co_flags is negative",
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},
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{
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name: "negative-stacksize-py311",
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magic: 3531,
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layout: "py311",
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fields: { stacksize: 0xffffffff },
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message: "co_stacksize is negative",
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},
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{
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name: "negative-flags-py311",
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magic: 3531,
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layout: "py311",
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fields: { flags: 0x80000000 },
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message: "co_flags is negative",
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},
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] as const) {
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const path = join(root, `${name}.pyc`);
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await writeFile(
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path,
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Buffer.concat([pythonPycHeader(magic), marshalCode(layout, fields)]),
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);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode).toBe(1);
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expect(result.json).toMatchObject({
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code: "invalid_request",
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category: "invalid_input",
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details: {
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operation: "inspect_python_pyc",
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issues: [
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{
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reason: "invalid_format",
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message: expect.stringContaining(message),
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},
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],
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},
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});
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expect(result.json).not.toHaveProperty("normalized_result");
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}
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},
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);
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cliTest(
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"preserves negative CPython first line numbers through the public CLI",
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async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-lines-");
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const path = join(root, "sample.pyc");
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const nested = marshalCode("py311", {
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name: "inner",
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firstlineno: -7,
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});
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const bytes = Buffer.concat([
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pythonPycHeader(3531),
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marshalCode("py311", {
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firstlineno: -1,
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consts: [nested],
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}),
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]);
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await writeFile(path, bytes);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.code_objects[0]?.firstlineno).toBe(-1);
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expect(evidence.normalized_result.code_objects[0]?.consts).toContainEqual({
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kind: "code",
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name: "inner",
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firstlineno: -7,
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});
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},
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);
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|
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cliTest(
|
|
"matches CPython reference slots for singleton and reference tags",
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|
async ({ cli }) => {
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const root = await createTestTempDirectory("rea-python-pyc-ref-slots-");
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const cases = [
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|
{
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|
name: "flagged-none",
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consts: "2903cefa01787200000000",
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expected: [
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{ kind: "none" },
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{ kind: "str", value: "x" },
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{ kind: "str", value: "x" },
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],
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},
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{
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name: "flagged-ref",
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consts: "2904fa0161f200000000fa01627201000000",
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expected: [
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{ kind: "str", value: "a" },
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{ kind: "str", value: "a" },
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{ kind: "str", value: "b" },
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{ kind: "str", value: "b" },
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],
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},
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];
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for (const testCase of cases) {
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const path = join(root, `${testCase.name}.pyc`);
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await writeFile(
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path,
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Buffer.concat([
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pythonPycHeader(3531),
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marshalCode("py311", {
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constsObject: Buffer.from(testCase.consts, "hex"),
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}),
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]),
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);
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const result = await cli.run({
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arguments: ["inspect-python-pyc", path, "--json"],
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});
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expect(result.exitCode, result.stderr).toBe(0);
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const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
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result.json,
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);
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expect(evidence.normalized_result.code_objects[0]?.consts).toMatchObject(
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testCase.expected,
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);
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}
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},
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);
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|
|
cliTest(
|
|
"counts code keys using the selected CPython equality rules",
|
|
async ({ cli }) => {
|
|
const root = await createTestTempDirectory("rea-python-pyc-equality-");
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|
const cases = [
|
|
{ magic: 3413, layout: "py38" as const, lengths: [1, 1] },
|
|
{ magic: 3439, layout: "py38" as const, lengths: [1, 1] },
|
|
{ magic: 3531, layout: "py311" as const, lengths: [2, 2] },
|
|
];
|
|
for (const [index, testCase] of cases.entries()) {
|
|
const code = (linetable: Buffer) =>
|
|
marshalCode(testCase.layout, {
|
|
name: "f",
|
|
filename: "fixture.py",
|
|
firstlineno: 1,
|
|
linetable,
|
|
});
|
|
const frozenSet = Buffer.concat([
|
|
Buffer.from([0x3e]),
|
|
Buffer.from([2, 0, 0, 0]),
|
|
code(Buffer.from([2, 1])),
|
|
code(Buffer.from([2, 2])),
|
|
]);
|
|
const dict = Buffer.concat([
|
|
Buffer.from([0x7b]),
|
|
code(Buffer.from([2, 1])),
|
|
Buffer.from([0x4e]),
|
|
code(Buffer.from([2, 2])),
|
|
Buffer.from([0x54, 0x30]),
|
|
]);
|
|
const path = join(root, `case-${index}.pyc`);
|
|
await writeFile(
|
|
path,
|
|
Buffer.concat([
|
|
pythonPycHeader(testCase.magic),
|
|
marshalCode(testCase.layout, { consts: [frozenSet, dict] }),
|
|
]),
|
|
);
|
|
const result = await cli.run({
|
|
arguments: ["inspect-python-pyc", path, "--json"],
|
|
});
|
|
expect(result.exitCode, result.stderr).toBe(0);
|
|
const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
|
|
result.json,
|
|
);
|
|
expect(
|
|
evidence.normalized_result.code_objects[0]?.consts.map((value) =>
|
|
value.kind === "frozenset" || value.kind === "dict"
|
|
? value.length
|
|
: null,
|
|
),
|
|
).toEqual(testCase.lengths);
|
|
}
|
|
},
|
|
);
|
|
|
|
cliTest(
|
|
"uses constructor-normalized legacy flags for code keys and preserves raw flags",
|
|
async ({ cli }) => {
|
|
const root = await createTestTempDirectory(
|
|
"rea-python-pyc-effective-flags-",
|
|
);
|
|
const cases = [
|
|
{
|
|
name: "py37-empty-tables",
|
|
magic: 3394,
|
|
layout: "py37" as const,
|
|
freevars: [],
|
|
cellvars: [],
|
|
lengths: [1, 1],
|
|
},
|
|
{
|
|
name: "py310-nonempty-tables",
|
|
magic: 3439,
|
|
layout: "py38" as const,
|
|
freevars: ["capture"],
|
|
cellvars: [],
|
|
lengths: [1, 1],
|
|
},
|
|
{
|
|
name: "py311-raw-flags",
|
|
magic: 3531,
|
|
layout: "py311" as const,
|
|
freevars: [],
|
|
cellvars: [],
|
|
lengths: [2, 2],
|
|
},
|
|
];
|
|
for (const testCase of cases) {
|
|
const code = (flags: number) =>
|
|
marshalCode(testCase.layout, {
|
|
name: "f",
|
|
filename: "fixture.py",
|
|
firstlineno: 1,
|
|
flags,
|
|
freevars: testCase.freevars,
|
|
cellvars: testCase.cellvars,
|
|
});
|
|
const first = code(0);
|
|
const second = code(0x40);
|
|
const frozenSet = Buffer.concat([
|
|
Buffer.from([0x3e]),
|
|
Buffer.from([2, 0, 0, 0]),
|
|
first,
|
|
second,
|
|
]);
|
|
const dict = Buffer.concat([
|
|
Buffer.from([0x7b]),
|
|
first,
|
|
Buffer.from([0x4e]),
|
|
second,
|
|
Buffer.from([0x54, 0x30]),
|
|
]);
|
|
const path = join(root, `${testCase.name}.pyc`);
|
|
await writeFile(
|
|
path,
|
|
Buffer.concat([
|
|
pythonPycHeader(testCase.magic),
|
|
marshalCode(testCase.layout, { consts: [frozenSet, dict] }),
|
|
]),
|
|
);
|
|
const result = await cli.run({
|
|
arguments: ["inspect-python-pyc", path, "--json"],
|
|
});
|
|
expect(result.exitCode, result.stderr).toBe(0);
|
|
const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
|
|
result.json,
|
|
);
|
|
expect(
|
|
evidence.normalized_result.code_objects[0]?.consts.map((value) =>
|
|
value.kind === "frozenset" || value.kind === "dict"
|
|
? value.length
|
|
: null,
|
|
),
|
|
).toEqual(testCase.lengths);
|
|
expect(
|
|
evidence.normalized_result.code_objects
|
|
.filter((object) => object.name === "f")
|
|
.map((object) => object.flags),
|
|
).toContain(0);
|
|
|
|
const rawPath = join(root, `raw-${testCase.name}.pyc`);
|
|
await writeFile(
|
|
rawPath,
|
|
Buffer.concat([
|
|
pythonPycHeader(testCase.magic),
|
|
marshalCode(testCase.layout, {
|
|
name: "f",
|
|
flags: 0x40,
|
|
freevars: testCase.freevars,
|
|
cellvars: testCase.cellvars,
|
|
}),
|
|
]),
|
|
);
|
|
const rawResult = await cli.run({
|
|
arguments: ["inspect-python-pyc", rawPath, "--json"],
|
|
});
|
|
expect(rawResult.exitCode, rawResult.stderr).toBe(0);
|
|
const rawEvidence = toolContract("inspect_python_pyc").outputSchema.parse(
|
|
rawResult.json,
|
|
);
|
|
expect(rawEvidence.normalized_result.code_objects[0]?.flags).toBe(0x40);
|
|
}
|
|
},
|
|
);
|
|
|
|
cliTest(
|
|
"resolves a relative pyc path against the working directory",
|
|
async ({ cli }) => {
|
|
const root = await createTestTempDirectory("rea-python-pyc-cli-rel-");
|
|
await writeFile(join(root, "sample.pyc"), pythonPycFixture("py37"));
|
|
const result = await cli.run({
|
|
arguments: ["inspect-python-pyc", "sample.pyc", "--json"],
|
|
cwd: root,
|
|
});
|
|
expect(result.exitCode, result.stderr).toBe(0);
|
|
const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
|
|
result.json,
|
|
);
|
|
expect(evidence.normalized_result.header.python_version).toBe("3.7");
|
|
expect(evidence.subject?.local_path).toBe(join(root, "sample.pyc"));
|
|
},
|
|
);
|
|
|
|
cliTest.skipIf(process.platform === "win32")(
|
|
"reads the file the symlink path names, not its lexical sibling",
|
|
async ({ cli }) => {
|
|
const root = await createTestTempDirectory("rea-python-pyc-cli-link-");
|
|
const target = join(root, "target");
|
|
await mkdir(join(target, "child"), { recursive: true });
|
|
await writeFile(join(target, "sample.pyc"), pythonPycFixture("py37"));
|
|
await writeFile(join(root, "sample.pyc"), pythonPycFixture("py311"));
|
|
await symlink(join(target, "child"), join(root, "link"));
|
|
const result = await cli.run({
|
|
arguments: ["inspect-python-pyc", "link/../sample.pyc", "--json"],
|
|
cwd: root,
|
|
});
|
|
expect(result.exitCode, result.stderr).toBe(0);
|
|
const evidence = toolContract("inspect_python_pyc").outputSchema.parse(
|
|
result.json,
|
|
);
|
|
expect(evidence.normalized_result.header.python_version).toBe("3.7");
|
|
expect(evidence.subject?.local_path).toBe(`${root}/link/../sample.pyc`);
|
|
},
|
|
);
|
|
|
|
cliTest("reports a truncated pyc as invalid input", async ({ cli }) => {
|
|
const root = await createTestTempDirectory("rea-python-pyc-cli-bad-");
|
|
const path = join(root, "broken.pyc");
|
|
await writeFile(path, Buffer.from("not a pyc"));
|
|
const result = await cli.run({
|
|
arguments: ["inspect-python-pyc", path, "--json"],
|
|
});
|
|
expect(result.exitCode).toBe(1);
|
|
expect(result.json).toMatchObject({
|
|
code: "invalid_request",
|
|
details: { operation: "inspect_python_pyc" },
|
|
});
|
|
});
|