"""Tests for system-prompt rendering (no model calls)."""

from skill_eval_runner.agent import build_system_prompt
from skill_eval_runner.config import ArtifactConfig, PromptsConfig


def test_with_skill_injects_skill_and_tool_instructions() -> None:
    """The with_skill prompt embeds the skill text and the report-tool name."""
    prompt = build_system_prompt(
        with_skill=True,
        skill_md="MY SKILL BODY",
        artifact=ArtifactConfig(tool_name="write_thing"),
        prompts=PromptsConfig(),
    )
    assert "MY SKILL BODY" in prompt
    assert "write_thing" in prompt


def test_without_skill_omits_skill_block() -> None:
    """The without_skill prompt does not embed skill text."""
    prompt = build_system_prompt(
        with_skill=False,
        skill_md="SHOULD NOT APPEAR",
        artifact=ArtifactConfig(),
        prompts=PromptsConfig(),
    )
    assert "SHOULD NOT APPEAR" not in prompt


def test_final_message_mode_has_no_tool_instruction() -> None:
    """final_message mode tells the agent to answer in its final message."""
    prompt = build_system_prompt(
        with_skill=True,
        skill_md="x",
        artifact=ArtifactConfig(mode="final_message"),
        prompts=PromptsConfig(),
    )
    assert "final message" in prompt


def test_skill_text_with_braces_is_safe() -> None:
    """Braces in skill text don't break templating (literal replacement)."""
    prompt = build_system_prompt(
        with_skill=True,
        skill_md="code: {if x} {y}",
        artifact=ArtifactConfig(),
        prompts=PromptsConfig(),
    )
    assert "{if x} {y}" in prompt