#   scipy-yli: Helpful SciPy utilities and recipes
#   Copyright © 2022  Lee Yingtong Li (RunasSudo)
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU Affero General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU Affero General Public License for more details.
#
#   You should have received a copy of the GNU Affero General Public License
#   along with this program.  If not, see <https://www.gnu.org/licenses/>.

import yli
from yli.config import config
from yli.utils import PValueStyle, fmt_p

def test_fmt_pvalues_ord():
	"""Test formatting of p values requiring no special handling"""
	
	# Default config
	config.pvalue_min_dps = 2
	config.pvalue_max_dps = 3
	config.pvalue_leading_zero = True
	config.alpha = 0.05
	
	assert fmt_p(0.0096, PValueStyle.RELATION) == '= 0.01*'
	assert fmt_p(0.01, PValueStyle.RELATION) == '= 0.01*'
	assert fmt_p(0.04, PValueStyle.RELATION) == '= 0.04*'
	assert fmt_p(0.11, PValueStyle.RELATION) == '= 0.11'
	assert fmt_p(0.55, PValueStyle.RELATION) == '= 0.55'

def test_fmt_pvalues_ord_noleadingzero():
	"""Test formatting of p values requiring no special handling, no leading zero"""
	
	# Default config
	config.pvalue_min_dps = 2
	config.pvalue_max_dps = 3
	config.pvalue_leading_zero = False
	config.alpha = 0.05
	
	assert fmt_p(0.0096, PValueStyle.RELATION) == '= .01*'
	assert fmt_p(0.01, PValueStyle.RELATION) == '= .01*'
	assert fmt_p(0.04, PValueStyle.RELATION) == '= .04*'
	assert fmt_p(0.11, PValueStyle.RELATION) == '= .11'
	assert fmt_p(0.55, PValueStyle.RELATION) == '= .55'

def test_fmt_pvalues_small():
	"""Test formatting of small p values requiring extra decimal points to represent"""
	
	# Default config
	config.pvalue_min_dps = 2
	config.pvalue_max_dps = 3
	config.pvalue_leading_zero = True
	config.alpha = 0.05
	
	assert fmt_p(0.009, PValueStyle.RELATION) == '= 0.009*'

def test_fmt_pvalues_ambiguous():
	"""Test formatting of p values requiring extra decimal points to avoid ambiguity"""
	
	# Default config
	config.pvalue_min_dps = 2
	config.pvalue_max_dps = 3
	config.pvalue_leading_zero = True
	config.alpha = 0.05
	
	assert fmt_p(0.048, PValueStyle.RELATION) == '= 0.048*'
	assert fmt_p(0.052, PValueStyle.RELATION) == '= 0.052'
	
	# Special rounding rules
	assert fmt_p(0.04999, PValueStyle.RELATION) == '= 0.049*'
	assert fmt_p(0.05001, PValueStyle.RELATION) == '= 0.051'

def test_fmt_pvalues_extreme():
	"""Test formatting of p values too small or large to be represented"""
	
	# Default config
	config.pvalue_min_dps = 2
	config.pvalue_max_dps = 3
	config.pvalue_leading_zero = True
	config.alpha = 0.05
	
	assert fmt_p(0.0009, PValueStyle.RELATION) == '< 0.001*'
	assert fmt_p(0.999, PValueStyle.RELATION) == '> 0.99'