"""Tests for PostLike domain entity.

This module tests the PostLike entity creation, attributes,
and BaseEntity integration.
"""

from uuid import UUID

from app.domain.entities.like import PostLike


class TestPostLikeEntity:
    """Tests for the PostLike domain entity.

    Covers TC-UNIT-826: PostLike entity valid creation.
    """

    def test_post_like_creation(self) -> None:
        """Test creating a PostLike with valid attributes.

        TC-UNIT-826: Positive — create PostLike instance.

        Expected:
            - post_id matches input
            - liked_by matches input
            - id is a valid UUID
            - created_at is set
        """
        post_id = UUID("00000000-0000-0000-0000-000000000001")
        liked_by = "user-123"

        like = PostLike(post_id=post_id, liked_by=liked_by)

        assert like.post_id == post_id
        assert like.liked_by == liked_by
        assert isinstance(like.id, UUID)
        assert like.created_at is not None

    def test_post_like_to_dict(self) -> None:
        """Test PostLike to_dict serialization."""
        post_id = UUID("00000000-0000-0000-0000-000000000001")
        liked_by = "device-abc-123"

        like = PostLike(post_id=post_id, liked_by=liked_by)
        data = like.to_dict()

        assert data["post_id"] == str(post_id)
        assert data["liked_by"] == liked_by
        assert "id" in data
        assert "created_at" in data