import unittest
import unreal_engine as ue
from unreal_engine import FVector, FRandomStream

class TestRandomStream(unittest.TestCase):

    def test_frand(self):
        r = FRandomStream()
        self.assertTrue(type(r.frand()) is float)

    def test_frand_range(self):
        r = FRandomStream()
        value = r.frand_range(17, 22)
        self.assertTrue(value >= 17)
        self.assertTrue(value = 0.0)
        self.assertTrue(value = 0)

    def test_initialize(self):
        r = FRandomStream()
        r.initialize(17)
        self.assertEqual(r.get_initial_seed(), 17)

    def test_rand_helper(self):
        r = FRandomStream()
        value = r.rand_helper(30)
        self.assertTrue(type(value) is int)
        self.assertTrue(value >= 0)
        self.assertTrue(value = 17)
        self.assertTrue(value