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from __future__ import annotations
import pytest
from mcp_sd15.errors import InvalidRequestError
from mcp_sd15.schema import (
ControlMode,
GuidedImageRequest,
ImageSize,
InpaintImageRequest,
TextToImageRequest,
)
def test_text_request_applies_defaults() -> None:
request = TextToImageRequest.create(" a castle ", default_size="landscape_512")
assert request.positive_prompt == "a castle"
assert request.negative_prompt == ""
assert request.size is ImageSize.LANDSCAPE_512
assert request.size.dimensions == (512, 384)
@pytest.mark.parametrize("prompt", ["", " ", None, 3])
def test_positive_prompt_is_required(prompt: object) -> None:
with pytest.raises(InvalidRequestError, match="positive_prompt"):
TextToImageRequest.create(prompt) # type: ignore[arg-type]
def test_guided_mode_is_an_enum() -> None:
request = GuidedImageRequest.create("cat", "openpose_full", "abc")
assert request.control_mode is ControlMode.OPENPOSE_FULL
with pytest.raises(InvalidRequestError, match="control_mode"):
GuidedImageRequest.create("cat", "canny", "abc")
def test_inpaint_requires_both_images() -> None:
with pytest.raises(InvalidRequestError, match="mask_image"):
InpaintImageRequest.create("repair", "abc", "")
def test_arbitrary_dimensions_are_not_accepted() -> None:
with pytest.raises(InvalidRequestError, match="size"):
TextToImageRequest.create("cat", size="640x480")
def test_base_prompts_are_combined_with_user_prompts() -> None:
request = TextToImageRequest.create(
"a cat",
"blurry",
base_positive="masterpiece, best quality",
base_negative="low quality, watermark",
)
assert request.positive_prompt == "masterpiece, best quality, a cat"
assert request.negative_prompt == "low quality, watermark\nblurry"
def test_base_positive_only_does_not_add_trailing_separator() -> None:
request = TextToImageRequest.create(
"a cat",
base_positive="masterpiece",
)
assert request.positive_prompt == "masterpiece, a cat"
assert request.negative_prompt == ""
def test_base_negative_only_does_not_add_leading_separator() -> None:
request = TextToImageRequest.create(
"a cat",
"blurry",
base_negative="low quality",
)
assert request.positive_prompt == "a cat"
assert request.negative_prompt == "low quality\nblurry"
def test_empty_base_prompts_preserve_user_prompts() -> None:
request = TextToImageRequest.create("a cat", "blurry")
assert request.positive_prompt == "a cat"
assert request.negative_prompt == "blurry"
def test_guided_request_combines_base_prompts() -> None:
request = GuidedImageRequest.create(
"a dancer",
"openpose",
"abc",
"deformed",
base_positive="masterpiece",
base_negative="low quality",
)
assert request.positive_prompt == "masterpiece, a dancer"
assert request.negative_prompt == "low quality\ndeformed"
def test_inpaint_request_combines_base_prompts() -> None:
request = InpaintImageRequest.create(
"a vase",
"abc",
"def",
"artifacts",
base_positive="masterpiece",
base_negative="low quality",
)
assert request.positive_prompt == "masterpiece, a vase"
assert request.negative_prompt == "low quality\nartifacts"
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