Seedream 4.0 MCP

import pytest from seedream_mcp.utils.validation import validate_prompt from seedream_mcp.utils.errors import SeedreamValidationError from seedream_mcp.tools.core.schemas import TextToImageInput def test_validate_prompt_chinese_limit_ok(): text = "你" * 300 assert validate_prompt(text) == text def test_validate_prompt_chinese_limit_exceed(): text = "你" * 301 with pytest.raises(SeedreamValidationError): validate_prompt(text) def test_validate_prompt_english_limit_ok(): text = ("word " * 600).strip() assert validate_prompt(text) == text def test_validate_prompt_english_limit_exceed(): text = ("word " * 601).strip() with pytest.raises(SeedreamValidationError): validate_prompt(text) def test_validate_prompt_mixed_limits_ok(): text = ("你" * 200) + " " + ("word " * 400).strip() assert validate_prompt(text) == text def test_validate_prompt_mixed_limits_exceed(): text_cn = "你" * 301 text_en = ("word " * 601).strip() with pytest.raises(SeedreamValidationError): validate_prompt(text_cn) with pytest.raises(SeedreamValidationError): validate_prompt(text_en) def test_pydantic_input_accepts_english_600_words(): prompt = ("word " * 600).strip() obj = TextToImageInput(prompt=prompt) assert obj.prompt == prompt def test_pydantic_input_rejects_english_601_words(): prompt = ("word " * 601).strip() with pytest.raises(ValueError): TextToImageInput(prompt=prompt)