File size: 9,820 Bytes
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from aistudio_api.infrastructure.gateway.wire_codec import (
AistudioWireCodec,
build_image_generation_search_tool,
build_tools_from_names,
modify_body,
)
def test_modify_body_updates_generation_config_and_prompt():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/new",
prompt="new prompt",
system_instruction="sys",
max_tokens=256,
temperature=0.2,
top_p=0.9,
top_k=32,
)
assert '"models/new"' in rewritten
assert '"new prompt"' in rewritten
assert '"sys"' in rewritten
body = json.loads(rewritten)
assert body[3][3] == 256
assert body[3][4] == 0.2
assert body[3][5] == 0.9
assert body[3][6] == 32
assert body[3][16] == [1, None, None, 3]
assert len(body[3]) <= 17 or body[3][17] is None
def test_build_image_generation_search_tool_variants():
assert build_image_generation_search_tool(google_search=True, image_search=False) == [None, None, None, [None, [[]]]]
assert build_image_generation_search_tool(google_search=False, image_search=True) == [None, None, None, [None, [None, []]]]
assert build_image_generation_search_tool(google_search=True, image_search=True) == [None, None, None, [None, [[], []]]]
assert build_image_generation_search_tool(google_search=False, image_search=False) is None
def test_build_tools_from_names_supports_image_tool_aliases():
assert build_tools_from_names(["google_search"], model="models/gemini-3.1-flash-image-preview", is_image_model=True) == [[None, None, None, [None, [[]]]]]
assert build_tools_from_names(["image_search"], model="models/gemini-3.1-flash-image-preview", is_image_model=True) == [[None, None, None, [None, [None, []]]]]
assert build_tools_from_names(["google_search_and_image_search"], model="models/gemini-3.1-flash-image-preview", is_image_model=True) == [
[None, None, None, [None, [[], []]]]
]
def test_build_tools_from_names_merges_image_search_flags_into_single_tool():
assert build_tools_from_names(
["google_search", "image_search"],
model="models/gemini-3.1-flash-image-preview",
is_image_model=True,
) == [[None, None, None, [None, [[], []]]]]
def test_build_tools_from_names_restricts_gemma_builtin_tools():
assert build_tools_from_names(["google_search", "code_execution"], model="models/gemma-4-31b-it") == [
[None, None, None, [None, [[]]]],
[[]],
]
try:
build_tools_from_names(["google_maps"], model="models/gemma-4-31b-it")
except ValueError as exc:
assert "not allowed" in str(exc)
else:
raise AssertionError("expected ValueError")
def test_build_tools_from_names_allows_four_gemini_builtin_tools():
assert build_tools_from_names(
["google_search", "code_execution", "google_maps", "url_context"],
model="models/gemini-3.5-flash",
) == [
[None, None, None, [None, [[]]]],
[[]],
[None, None, None, None, None, None, None, None, None, None, []],
[None, None, None, None, None, None, None, []],
]
def test_build_tools_from_names_restricts_unknown_model_to_safe_subset():
try:
build_tools_from_names(["google_maps"], model="models/learnlm-1.5-pro-experimental")
except ValueError as exc:
assert "not allowed" in str(exc)
else:
raise AssertionError("expected ValueError")
def test_wire_codec_decodes_semantic_fields():
codec = AistudioWireCodec()
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",[[[null,"sys"]],"user"],[[[]]]]'
decoded = codec.decode(original)
assert decoded.model == "models/original"
assert decoded.snapshot == "!snap"
assert decoded.contents[0].role == "user"
assert decoded.contents[0].parts[-1].text == "old"
assert decoded.system_instruction is not None
assert decoded.system_instruction.parts[0].text == "sys"
assert decoded.generation_config.max_tokens == 128
def test_modify_body_sanitizes_plain_text_generation_config():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16,"application/json",[6],null,null,null,null,null,null,null,[1,null,null,3]],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/gemma-4-31b-it",
prompt="hello",
)
assert '"text/plain"' in rewritten
assert '"application/json"' not in rewritten
assert '[6]' not in rewritten
assert json.loads(rewritten)[3][16] == [1, None, None, 3]
assert len(json.loads(rewritten)[3]) <= 17 or json.loads(rewritten)[3][17] is None
def test_modify_body_enables_thinking_for_any_model():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/new-text-model",
prompt="hello",
)
body = json.loads(rewritten)
assert body[3][16] == [1, None, None, 3]
assert len(body[3]) <= 17 or body[3][17] is None
def test_modify_body_can_override_image_output_resolution():
original = json.dumps(
[
"models/original",
[[[[None, "old"]], "user"]],
None,
[None] * 27,
"!snap",
None,
None,
]
)
rewritten = modify_body(
original,
model="models/gemini-3.1-flash-image-preview",
prompt="hello",
generation_config_overrides={"output_resolution": ["16:9", "1K"]},
)
body = json.loads(rewritten)
assert body[3][26] == ["16:9", "1K"]
def test_modify_body_applies_model_safety_defaults():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/gemma-4-31b-it",
prompt="hello",
)
body = json.loads(rewritten)
assert body[2] == [
[None, None, 7, 5],
[None, None, 8, 5],
[None, None, 9, 5],
[None, None, 10, 5],
]
def test_modify_body_applies_image_model_defaults():
original = json.dumps(
[
"models/original",
[[[[None, "old"]], "user"]],
[[None, None, 7, 4]],
[None] * 27,
"!snap",
None,
None,
]
)
rewritten = modify_body(
original,
model="models/gemini-3.1-flash-image-preview",
prompt="hello",
)
body = json.loads(rewritten)
assert body[2] is None
assert body[3][14] == [2]
assert body[3][16] == [1, None, None, 4]
def test_modify_body_keeps_image_model_tools():
original = json.dumps(
[
"models/original",
[[[[None, "old"]], "user"]],
None,
[None] * 27,
"!snap",
None,
None,
]
)
rewritten = modify_body(
original,
model="models/gemini-3.1-flash-image-preview",
prompt="hello",
tools=[[None, None, None, [None, [[], []]]]],
)
body = json.loads(rewritten)
assert body[6] == [[None, None, None, [None, [[], []]]]]
def test_modify_body_safety_off_uses_off_threshold():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/gemma-4-31b-it",
prompt="hello",
safety_off=True,
)
body = json.loads(rewritten)
assert body[2] == [
[None, None, 7, 5],
[None, None, 8, 5],
[None, None, 9, 5],
[None, None, 10, 5],
]
def test_modify_body_can_override_safety_settings():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,null,null,128,0.5,0.8,16],"!snap",null,null]'
rewritten = modify_body(
original,
model="models/gemini-3.5-flash",
prompt="hello",
safety_settings=[
[None, None, 7, 1],
[None, None, 8, 4],
[None, None, 9, 3],
[None, None, 10, 2],
],
)
body = json.loads(rewritten)
assert body[2] == [
[None, None, 7, 1],
[None, None, 8, 4],
[None, None, 9, 3],
[None, None, 10, 2],
]
def test_modify_body_keeps_structured_generation_config_for_gemini_mode():
original = '["models/original",[[[[null,"old"]],"user"]],null,[null,["6"],null,128,0.5,0.8,16,"application/json",[6],0.1,0.2,true,5,null,[2,1],null,[1,null,null,3],2],"!snap",null,null,null,null,null,1,"cached",null,[[null,null,"Asia/Shanghai"],null,1]]'
rewritten = modify_body(
original,
model="models/gemini-2.5-pro-preview-05-06",
prompt="hello",
generation_config_overrides={
"stop_sequences": ["STOP"],
"response_mime_type": "application/json",
"response_schema": [6],
"presence_penalty": 0.3,
"frequency_penalty": 0.4,
"response_logprobs": True,
"logprobs": 7,
"image_output_mode": [2, 1],
"thinking_config": [1, None, None, 3],
"media_resolution": 2,
},
sanitize_plain_text=False,
)
body = json.loads(rewritten)
assert body[3][1] == ["STOP"]
assert body[3][7] == "application/json"
assert body[3][8] == [6]
assert body[3][9] == 0.3
assert body[3][10] == 0.4
assert body[3][11] is True
assert body[3][12] == 7
assert body[3][14] == [2, 1]
assert body[3][16] == [1, None, None, 3]
assert body[3][17] == 2
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