import pytest
from sympy import Symbol

from .context import assert_equal

epsilon_upper = Symbol('char"000190', real=True)
epsilon_lower = Symbol("epsilon", real=True)
varepsilon = Symbol("varepsilon", real=True)


def test_greek_epsilon():
    assert_equal("\\epsilon", epsilon_lower)


def test_greek_epsilon_upper():
    assert_equal('\\char"000190', epsilon_upper)


def test_greek_varepsilon():
    assert_equal("\\varepsilon", varepsilon)
