Files
llm-in-text/backend/tests/test_prompt.py
ydy0615 637456ee34 feat(api): add completion request cancellation and mermaid rendering
Add support for cancelling in-progress LLM completion requests via new /v1/completions/cancel endpoint with task tracking. Implement mermaid diagram rendering in the Milkdown editor with a new mermaidPlugin. Update copilotPlugin to properly abort requests with descriptive reasons. Refactor settings panel to handle system theme changes reactively. Add camera capture support for image uploads.
2026-02-25 19:00:17 +08:00

92 lines
3.5 KiB
Python

import sys
from pathlib import Path
BACKEND_DIR = Path(__file__).resolve().parents[1]
if str(BACKEND_DIR) not in sys.path:
sys.path.insert(0, str(BACKEND_DIR))
import prompt # noqa: E402
def test_prompt_builds_system_and_user():
system_prompt, user_prompt = prompt.build_completion_prompts(
prefix="The result is ",
suffix="for this dataset.",
language_id="markdown",
)
assert "Hard constraints you must follow" in system_prompt
assert "strict KaTeX-compatible math" in system_prompt
assert "$...$" in system_prompt
assert "$$...$$" in system_prompt
assert "```{language}" in system_prompt
assert "Mermaid-specific completion rules" in system_prompt
assert "CURSOR_FENCE_LANGUAGE" in system_prompt
assert "MERMAID_CONTEXT" in system_prompt
assert "Output Mermaid statements only." in system_prompt
assert "CURSOR_IN_FENCED_CODE_BLOCK" in user_prompt
assert "CURSOR_FENCE_LANGUAGE" in user_prompt
assert "MERMAID_CONTEXT" in user_prompt
assert "PREFIX_ENDS_WITH_NEWLINE" in user_prompt
assert "SUFFIX_STARTS_WITH_NEWLINE" in user_prompt
def test_cursor_in_fence_detection():
assert prompt._cursor_in_fenced_code_block("") is False
assert prompt._cursor_in_fenced_code_block("```python\nprint('x')\n") is True
assert prompt._cursor_in_fenced_code_block("```python\nprint('x')\n```\n") is False
assert prompt._cursor_in_fenced_code_block("text ```not-a-fence``` tail") is False
def test_active_fence_language_detection():
assert prompt._active_fence_language("") == "none"
assert prompt._active_fence_language("```mermaid\nflowchart TD\nA-->B\n") == "mermaid"
assert prompt._active_fence_language("```python\nprint('x')\n") == "python"
assert prompt._active_fence_language("```\nline\n") == "unknown"
assert prompt._active_fence_language("```mermaid\nA-->B\n```\n") == "none"
def test_newline_flags():
_, user_prompt_a = prompt.build_completion_prompts(
prefix="Hello",
suffix="World",
)
assert "CURSOR_IN_FENCED_CODE_BLOCK: false" in user_prompt_a
assert "CURSOR_FENCE_LANGUAGE: none" in user_prompt_a
assert "MERMAID_CONTEXT: false" in user_prompt_a
assert "PREFIX_ENDS_WITH_NEWLINE: false" in user_prompt_a
assert "SUFFIX_STARTS_WITH_NEWLINE: false" in user_prompt_a
_, user_prompt_b = prompt.build_completion_prompts(
prefix="Hello\n",
suffix="\nWorld",
)
assert "CURSOR_FENCE_LANGUAGE: none" in user_prompt_b
assert "PREFIX_ENDS_WITH_NEWLINE: true" in user_prompt_b
assert "SUFFIX_STARTS_WITH_NEWLINE: true" in user_prompt_b
def test_mermaid_context_flags():
_, prompt_in_mermaid = prompt.build_completion_prompts(
prefix="```mermaid\nflowchart TD\nA --> ",
suffix="\n```",
)
assert "CURSOR_IN_FENCED_CODE_BLOCK: true" in prompt_in_mermaid
assert "CURSOR_FENCE_LANGUAGE: mermaid" in prompt_in_mermaid
assert "MERMAID_CONTEXT: true" in prompt_in_mermaid
_, prompt_mermaid_keyword = prompt.build_completion_prompts(
prefix="Please draw a mermaid flowchart for deploy pipeline.",
suffix="",
)
assert "CURSOR_IN_FENCED_CODE_BLOCK: false" in prompt_mermaid_keyword
assert "CURSOR_FENCE_LANGUAGE: none" in prompt_mermaid_keyword
assert "MERMAID_CONTEXT: true" in prompt_mermaid_keyword
def test_examples_coverage():
_, user_prompt = prompt.build_completion_prompts(prefix="", suffix="")
for ex in range(1, 15):
assert f"[EX{ex:02d}]" in user_prompt