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9d5bc33 89398db 9d5bc33 89398db 9d5bc33 89398db 9d5bc33 89398db 9d5bc33 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 | from __future__ import annotations
import base64
import builtins
import json
from unittest.mock import patch
from headroom.proxy.handlers.anthropic import AnthropicHandlerMixin
from headroom.proxy.handlers.openai import OpenAIHandlerMixin, _decode_openai_bearer_payload
def _jwt(payload: object) -> str:
header = {"alg": "none", "typ": "JWT"}
def encode(part: object) -> str:
raw = json.dumps(part, separators=(",", ":")).encode("utf-8")
return base64.urlsafe_b64encode(raw).decode("ascii").rstrip("=")
return f"{encode(header)}.{encode(payload)}."
class _ImageCompressor:
def __init__(self, compressed_message):
self._compressed_message = compressed_message
def compress(self, messages, provider): # noqa: ANN001, ANN201
assert provider == "anthropic"
return [self._compressed_message]
class _FreshCompressor:
instances = 0
def __init__(self):
type(self).instances += 1
def test_decode_openai_bearer_payload_handles_missing_and_non_mapping_payloads() -> None:
assert _decode_openai_bearer_payload({}) is None
assert _decode_openai_bearer_payload({"authorization": "Basic abc"}) is None
assert (
_decode_openai_bearer_payload({"authorization": f"Bearer {_jwt(['not', 'a', 'dict'])}"})
is None
)
def test_openai_handler_prefix_helpers_cover_edge_cases() -> None:
assert OpenAIHandlerMixin._strict_previous_turn_frozen_count([], 2) == 2
assert (
OpenAIHandlerMixin._strict_previous_turn_frozen_count(
[{"role": "assistant"}, {"role": "user"}],
0,
)
== 1
)
assert (
OpenAIHandlerMixin._strict_previous_turn_frozen_count(
[{"role": "user"}, {"role": "assistant"}],
0,
)
== 2
)
original = [{"role": "system", "content": "keep"}, {"role": "user", "content": "hello"}]
restored, changed = OpenAIHandlerMixin._restore_frozen_prefix(
original,
[],
frozen_message_count=1,
)
assert restored == [{"role": "system", "content": "keep"}]
assert changed == 1
restored, changed = OpenAIHandlerMixin._restore_frozen_prefix(
original,
[{"role": "system", "content": "changed"}, {"role": "user", "content": "hello"}],
frozen_message_count=1,
)
assert restored == original
assert changed == 1
def test_anthropic_tool_sort_and_context_append_helpers() -> None:
tools = [
{"type": "function", "function": {"name": "beta"}},
{"name": "alpha"},
{"type": "tool"},
]
sorted_tools = AnthropicHandlerMixin._sort_tools_deterministically(tools)
assert [AnthropicHandlerMixin._tool_sort_key(tool)[0] for tool in sorted_tools] == [
"alpha",
"beta",
"tool",
]
assert AnthropicHandlerMixin._sort_tools_deterministically(None) is None
assert (
AnthropicHandlerMixin._append_context_to_latest_non_frozen_user_turn(
[], "ctx", frozen_message_count=0
)
== []
)
assert AnthropicHandlerMixin._append_context_to_latest_non_frozen_user_turn(
[{"role": "user", "content": "hello"}],
"ctx",
frozen_message_count=0,
) == [{"role": "user", "content": "hello\n\nctx"}]
assert AnthropicHandlerMixin._append_context_to_latest_non_frozen_user_turn(
[{"role": "user", "content": [{"type": "text", "text": "hello"}]}],
"ctx",
frozen_message_count=0,
) == [{"role": "user", "content": [{"type": "text", "text": "hello"}]}]
def test_anthropic_image_compression_helper_only_rewrites_latest_eligible_turn() -> None:
image_message = {
"role": "user",
"content": [{"type": "image", "source": {"type": "base64", "data": "abc"}}],
}
compressed = {
"role": "user",
"content": [{"type": "image", "source": {"type": "base64", "data": "xyz"}}],
}
assert (
AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[],
frozen_message_count=0,
compressor=_ImageCompressor(compressed),
)
== []
)
assert AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[image_message],
frozen_message_count=1,
compressor=_ImageCompressor(compressed),
) == [image_message]
assert AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[{"role": "assistant", "content": image_message["content"]}],
frozen_message_count=0,
compressor=_ImageCompressor(compressed),
) == [{"role": "assistant", "content": image_message["content"]}]
assert AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[{"role": "user", "content": "no-image"}],
frozen_message_count=0,
compressor=_ImageCompressor(compressed),
) == [{"role": "user", "content": "no-image"}]
assert AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[image_message],
frozen_message_count=0,
compressor=_ImageCompressor(image_message),
) == [image_message]
assert AnthropicHandlerMixin._compress_latest_user_turn_images_cache_safe(
[image_message],
frozen_message_count=0,
compressor=_ImageCompressor(compressed),
) == [compressed]
def test_proxy_helper_creates_fresh_image_compressors(monkeypatch) -> None:
from headroom.proxy import helpers
monkeypatch.setattr(helpers, "_image_compressor_available", None)
_FreshCompressor.instances = 0
with patch("headroom.image.ImageCompressor", _FreshCompressor):
first = helpers._get_image_compressor()
second = helpers._get_image_compressor()
assert isinstance(first, _FreshCompressor)
assert isinstance(second, _FreshCompressor)
assert first is not second
assert _FreshCompressor.instances == 2
def test_proxy_helper_caches_image_stack_import_failure(monkeypatch) -> None:
from headroom.proxy import helpers
real_import = builtins.__import__
calls = 0
def fake_import(name, *args, **kwargs): # noqa: ANN001, ANN202
nonlocal calls
if name == "headroom.image":
calls += 1
raise ImportError("image extras unavailable")
return real_import(name, *args, **kwargs)
monkeypatch.setattr(helpers, "_image_compressor_available", None)
monkeypatch.setattr(builtins, "__import__", fake_import)
assert helpers._get_image_compressor() is None
assert helpers._get_image_compressor() is None
assert calls == 1
assert helpers._image_compressor_available is False
def test_anthropic_cache_delta_helpers_cover_string_list_and_role_mismatch() -> None:
previous_original = [{"role": "user", "content": "hello"}]
previous_forwarded = [{"role": "user", "content": "HELLO"}]
assert AnthropicHandlerMixin._extract_cache_stable_delta(
[{"role": "user", "content": "hello"}, {"role": "assistant", "content": "next"}],
previous_original,
previous_forwarded,
) == (previous_forwarded, [{"role": "assistant", "content": "next"}])
assert (
AnthropicHandlerMixin._extract_cache_stable_delta(
[{"role": "assistant", "content": "hello"}],
previous_original,
previous_forwarded,
)
is None
)
string_suffix = AnthropicHandlerMixin._extract_cache_stable_last_message_suffix(
[{"role": "user", "content": "hello world"}],
previous_original,
previous_forwarded,
)
assert string_suffix == ([], previous_forwarded[0], [{"role": "user", "content": " world"}])
list_suffix = AnthropicHandlerMixin._extract_cache_stable_last_message_suffix(
[
{
"role": "user",
"content": [{"type": "text", "text": "a"}, {"type": "text", "text": "b"}],
}
],
[{"role": "user", "content": [{"type": "text", "text": "a"}]}],
[{"role": "user", "content": [{"type": "text", "text": "A"}]}],
)
assert list_suffix == (
[],
{"role": "user", "content": [{"type": "text", "text": "A"}]},
[{"role": "user", "content": [{"type": "text", "text": "b"}]}],
)
assert AnthropicHandlerMixin._merge_appended_message_delta(
{"role": "user", "content": "HELLO"},
{"role": "user", "content": " world"},
) == {"role": "user", "content": "HELLO world"}
assert AnthropicHandlerMixin._merge_appended_message_delta(
{"role": "user", "content": [{"type": "text", "text": "A"}]},
{"role": "user", "content": [{"type": "text", "text": "b"}]},
) == {"role": "user", "content": [{"type": "text", "text": "A"}, {"type": "text", "text": "b"}]}
assert (
AnthropicHandlerMixin._merge_appended_message_delta(
{"role": "user", "content": "A"},
{"role": "assistant", "content": "B"},
)
is None
)
def test_anthropic_assistant_message_helper_requires_assistant_role() -> None:
assert AnthropicHandlerMixin._assistant_message_from_response_json(None) is None
assert AnthropicHandlerMixin._assistant_message_from_response_json({"role": "user"}) is None
assert AnthropicHandlerMixin._assistant_message_from_response_json(
{"role": "assistant", "content": [{"type": "text", "text": "ok"}]}
) == {"role": "assistant", "content": [{"type": "text", "text": "ok"}]}
|