from ago import human
from ago import delta2human
from ago import delta2dict

from datetime import datetime
from datetime import timedelta

PRESENT = datetime.now()
PAST    = PRESENT - timedelta( 492, 58711, 45 ) # days, secs, ms
FUTURE  = PRESENT + timedelta( 2, 12447, 963 ) # days, secs, ms

PAST_DELTA   = PRESENT - PAST
FUTURE_DELTA = FUTURE - PRESENT 

def test_human_is_string():
    assert 'str' in str(type(human( PAST )))

def test_delta2human_is_string():
    assert 'str' in str(type(delta2human( PAST_DELTA )))

def test_delta2dict_is_dict():
    assert 'dict' in str(type(delta2dict( PAST_DELTA )))

def test_valid_dict():
    past_dict = delta2dict( PAST_DELTA )
    assert past_dict['year'] == 1
    assert past_dict['day'] == 127
    assert past_dict['hour'] == 16
    assert past_dict['minute'] == 18


def test_output():
    """Test and example usage"""

    print '\nTesting past:\n'
    print delta2dict( PAST_DELTA )
    print 'Commented ' + delta2human( PAST_DELTA, 3 )
    print 'Commented ' + human( PAST )

    print '\nTesting future:\n'
    print delta2dict( FUTURE_DELTA )
    print 'Shutdown ' + delta2human( FUTURE_DELTA, 3 )
    print 'Shutdown ' + human( FUTURE )
    print ''