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29ed697 | 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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | #!/usr/bin/env python3
"""Storage-routing tests using disposable repositories, without network access."""
from pathlib import Path
import os
import shlex
import subprocess
import sys
import tempfile
import unittest
import storage_policy as policy
POLICY = Path(policy.__file__).resolve()
class ContentPolicyTests(unittest.TestCase):
def test_code_and_readable_shader_source(self):
for name in ["src/main.rs", "shaders/wall.wgsl", "docs/evidence/files.csv", "config.ron"]:
policy.check_code(name, "// source and metadata ✓\n".encode())
def test_payload_paths_even_for_text_assets(self):
for name in ["assets/mesh.json", "crates/app/assets/settings.ron", ".cache/foo.txt", "captures/frame.txt"]:
with self.assertRaises(ValueError, msg=name):
policy.check_code(name, b"{}")
def test_payload_extensions_outside_asset_directory(self):
for name in ["foo.PNG", "src/model.glb", "texture.texture", "docs/example.svg", "plugin.so.1",
"game.pk3", "cgame.qvm", "map.bsp", "map.aas", "player.MD3",
"original.shader", "library.dylib", "app.icns", "font.dat"]:
with self.assertRaises(ValueError, msg=name):
policy.check_code(name, b"innocent looking text")
def test_binary_invalid_encoding_and_oversize(self):
for data in [b"a\0b", b"\xff", b"x" * (policy.MAX_CODE_BYTES + 1)]:
with self.assertRaises(ValueError):
policy.check_code("src/data.rs", data)
def test_asset_pointer_is_required(self):
pointer = b"version https://git-lfs.github.com/spec/v1\noid sha256:" + b"a" * 64 + b"\nsize 10\n"
policy.check_asset("mesh.json", pointer)
policy.check_asset("assets/README.md", pointer)
policy.check_asset("assets/empty.skin", b"")
for data in [b"{}", pointer + b"hidden payload"]:
with self.assertRaises(ValueError):
policy.check_asset("mesh.json", data)
with self.assertRaises(ValueError):
policy.check_code("data.txt", pointer)
def test_nested_asset_readme_is_not_control_metadata(self):
with self.assertRaises(ValueError):
policy.check_asset("original/README.md", b"original game text\n")
class GitIntegrationTests(unittest.TestCase):
def setUp(self):
self.temp = tempfile.TemporaryDirectory()
self.root = Path(self.temp.name)
self.env = {**os.environ, "GIT_CONFIG_NOSYSTEM": "1", "GIT_CONFIG_GLOBAL": os.devnull,
"GIT_AUTHOR_NAME": "Test", "GIT_AUTHOR_EMAIL": "test@example.invalid",
"GIT_COMMITTER_NAME": "Test", "GIT_COMMITTER_EMAIL": "test@example.invalid"}
# Do not inherit a parent hook's repository/index environment.
for key in ("GIT_DIR", "GIT_WORK_TREE", "GIT_INDEX_FILE", "GIT_COMMON_DIR"):
self.env.pop(key, None)
self.git("init", "-q")
def tearDown(self):
self.temp.cleanup()
def run_command(self, *args, input=None, success=True):
result = subprocess.run(args, cwd=self.root, env=self.env, input=input,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if success:
self.assertEqual(result.returncode, 0, result.stderr.decode(errors="replace"))
else:
self.assertNotEqual(result.returncode, 0)
return result
def git(self, *args, **kwargs):
return self.run_command("git", *args, **kwargs)
def install_code_filter(self):
(self.root / ".gitattributes").write_text((POLICY.parent.parent / ".gitattributes").read_text())
command = f"{shlex.quote(sys.executable)} {shlex.quote(str(POLICY))} clean -- %f"
self.git("config", "filter.nanobrush-code.clean", command)
self.git("config", "filter.nanobrush-code.smudge", "cat")
self.git("config", "filter.nanobrush-code.required", "true")
self.git("add", ".gitattributes")
def test_git_add_preserves_source_and_quoted_filename(self):
self.install_code_filter()
name = "space ' and dollar $.rs"
data = b"fn main() {}\n"
(self.root / name).write_bytes(data)
self.git("add", "--", name)
self.assertEqual(self.git("show", ":" + name).stdout, data)
self.run_command(sys.executable, str(POLICY), "check")
def test_clean_filter_rejects_asset_and_missing_driver(self):
self.install_code_filter()
(self.root / "image.png").write_bytes(b"small")
self.git("add", "image.png", success=False)
(self.root / "main.rs").write_text("fn main() {}\n")
self.git("config", "filter.nanobrush-code.clean", "missing-nanobrush-filter-command")
self.git("add", "main.rs", success=False)
def test_index_guard_catches_bypassed_filter_and_attribute_override(self):
self.install_code_filter()
(self.root / "data.txt").write_bytes(b"binary\0data")
self.git("-c", "filter.nanobrush-code.clean=cat", "add", "data.txt")
self.run_command(sys.executable, str(POLICY), "check", success=False)
self.git("-c", "filter.nanobrush-code.clean=cat", "rm", "--cached", "data.txt")
(self.root / ".gitattributes").write_text("* -filter\n")
self.git("add", ".gitattributes")
self.run_command(sys.executable, str(POLICY), "check", success=False)
def test_oversize_bypassed_blob_does_not_block_batch_reader(self):
self.install_code_filter()
(self.root / "large.txt").write_bytes(b"x" * (policy.MAX_CODE_BYTES + 1))
self.git("-c", "filter.nanobrush-code.clean=cat", "add", "large.txt")
self.run_command(sys.executable, str(POLICY), "check", success=False)
def test_push_guard_catches_payload_deleted_in_later_commit(self):
self.install_code_filter()
(self.root / "data.txt").write_bytes(b"binary\0data")
self.git("-c", "filter.nanobrush-code.clean=cat", "add", "data.txt")
self.git("-c", "filter.nanobrush-code.clean=cat", "commit", "-qm", "payload")
self.git("-c", "filter.nanobrush-code.clean=cat", "rm", "data.txt")
self.git("commit", "-qm", "remove payload")
self.run_command(sys.executable, str(POLICY), "check")
oid = self.git("rev-parse", "HEAD").stdout.decode().strip()
update = f"refs/heads/main {oid} refs/heads/main {'0' * 40}\n".encode()
self.run_command(sys.executable, str(POLICY), "push", input=update, success=False)
def install_mixed_filters(self):
self.install_code_filter()
self.git("lfs", "install", "--local", "--skip-repo")
(self.root / "assets").mkdir()
def bypass_lfs(self):
self.git("config", "--unset", "filter.lfs.process")
self.git("config", "filter.lfs.clean", "cat")
def test_lfs_stores_text_asset_as_pointer_and_keeps_working_bytes(self):
self.install_mixed_filters()
data = b'{"positions": [1, 2, 3]}\n'
(self.root / "assets/mesh.json").write_bytes(data)
self.git("add", "assets/mesh.json")
pointer = self.git("show", ":assets/mesh.json").stdout
self.assertTrue(policy.POINTER.fullmatch(pointer))
self.assertEqual((self.root / "assets/mesh.json").read_bytes(), data)
self.run_command(sys.executable, str(POLICY), "check")
self.bypass_lfs()
self.git("add", "--renormalize", "assets/mesh.json")
self.run_command(sys.executable, str(POLICY), "check", success=False)
def test_actual_attributes_route_all_assets_and_keep_code_literal(self):
self.install_mixed_filters()
(self.root / "README.md").write_text("# Code repository\n")
(self.root / "assets/extracted").mkdir()
payloads = {
"assets/extracted/empty.skin": b"",
"assets/README.md": b"asset documentation\n",
"assets/extracted/README.md": b"original attribution\n",
"assets/extracted/default.cfg": b"seta snaps 20\n",
"assets/extracted/wall.shader": b"textures/wall { { map wall.tga } }\n",
"assets/extracted/game.exe": b"MZ\0game payload",
}
for name, data in payloads.items():
(self.root / name).write_bytes(data)
self.git("add", ".")
self.assertEqual(self.git("show", ":README.md").stdout, b"# Code repository\n")
for name, data in payloads.items():
pointer = self.git("show", ":" + name).stdout
self.assertTrue(policy.POINTER.fullmatch(pointer) or (data == b"" and pointer == b""), name)
self.assertEqual((self.root / name).read_bytes(), data)
self.run_command(sys.executable, str(POLICY), "check")
def test_asset_history_rejects_payload_even_after_deletion(self):
self.install_mixed_filters()
self.bypass_lfs()
(self.root / "assets/config.txt").write_text("original game asset\n")
self.git("add", ".")
self.git("commit", "-qm", "raw asset")
self.git("rm", "assets/config.txt")
self.git("commit", "-qm", "remove asset")
self.run_command(sys.executable, str(POLICY), "check")
oid = self.git("rev-parse", "HEAD").stdout.decode().strip()
update = f"refs/heads/main {oid} refs/heads/main {'0' * 40}\n".encode()
self.run_command(sys.executable, str(POLICY), "push", input=update, success=False)
def test_nested_attributes_cannot_exempt_asset_payload(self):
self.install_mixed_filters()
(self.root / "assets/.gitattributes").write_text("* -filter\n")
(self.root / "assets/data.txt").write_text("game data\n")
self.git("add", ".")
self.run_command(sys.executable, str(POLICY), "check", success=False)
def test_root_and_nested_references_are_filtered_but_tests_remain_text(self):
self.install_mixed_filters()
payloads = {"references/download.txt": b"original small text\r\n",
"docs/references/old.exe": b"MZ\0binary"}
for name, data in payloads.items():
path = self.root / name
path.parent.mkdir(parents=True, exist_ok=True)
path.write_bytes(data)
(self.root / "tests").mkdir()
(self.root / "tests/test_example.py").write_text("assert 1 + 1 == 2\n")
self.git("add", ".")
for name, data in payloads.items():
self.assertTrue(policy.POINTER.fullmatch(self.git("show", ":" + name).stdout))
self.assertEqual((self.root / name).read_bytes(), data)
self.assertEqual(self.git("show", ":tests/test_example.py").stdout, b"assert 1 + 1 == 2\n")
self.run_command(sys.executable, str(POLICY), "check")
def test_symlink_is_rejected(self):
self.install_mixed_filters()
(self.root / "link").symlink_to("README.md")
self.git("add", "link")
self.run_command(sys.executable, str(POLICY), "check", success=False)
def test_missing_local_setup_is_rejected(self):
self.install_mixed_filters()
self.run_command(sys.executable, str(POLICY), "check", "--require-setup", success=False)
if __name__ == "__main__":
unittest.main()
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