def test_func_parse_descriptor_log():
f = Curve.parse_descriptor({'$log': 10})
assert f.y(0) == approx(math.log(10), abs=0.01)
f = Curve.parse_descriptor({'$log': {'@args': [10], 'base': 10}})
assert f.y(0) == 1
f = Curve.parse_descriptor({'$log2': 16})
assert f.y(0) == 4
def test_func_parse_descriptor_add():
f = Curve.parse_descriptor({'$add': [1, 2]})
assert f.y(0) == 3
f = Curve.parse_descriptor({'$add': [1, 2, 3]})
assert f.y(0) == 6
f = Curve.parse_descriptor({'$add': [1]})
assert f.y(0) == 1
def test_func_parse_descriptor_log_decorator():
f = Curve.parse_descriptor({'@log2': {'$add': [16, 16]}})
assert f.y(0) == 256
v = Curve.parse_descriptor({'@log10': 10}, fragment=True)
assert v == 10
v = Curve.parse_descriptor({'@log': 10}, fragment=True)
assert v == approx(10, abs=0.01)
def test_func_parse_descriptor_chain_with_decorator():
f = Curve.parse_descriptor({'@log': {'$constant': 16}, '$max': 10})
assert f.y(0) == approx(16, abs=0.01)
f = Curve.parse_descriptor({'@log': {'$constant': 16}, '$max': [10]})
assert f.y(0) == approx(16, abs=0.01)
# 2 ^ (10 + 2) = 4096
f = Curve.parse_descriptor({
'@log10': {
'$constant': 10
},
'@log2': {
'$add': 4
}
})
assert f.y(0) == approx(4096, abs=0.01)
def test_func_parse_descriptor_line():
f = Curve.parse_descriptor(
{'$line': {
'points': [[100.0, 1000.0], [200.0, 2000.0]]
}})
assert f.y(100) == 1000.0
assert f.y(200) == 2000.0
assert f.y(300) == 3000.0
def test_func_parse_descriptor_chain_with_class_method():
f = Curve.parse_descriptor({'$constant': 16, '$max': [10]})
assert f.y(0) == 16
def test_func_parse_descriptor_chain_with_instance_method():
f = Curve.parse_descriptor({'$constant': -16, '$abs': []})
assert f.y(0) == 16
def test_func_parse_descriptor_chain():
f = Curve.parse_descriptor({'$constant': 16, '$log': {'base': 2}})
assert f.y(0) == 4
def test_func_parse_descriptor_log2():
f = Curve.parse_descriptor({'$log2': 16})
assert f.y(0) == 4
def test_func_parse_descriptor_raised():
f = Curve.parse_descriptor({'$raised': {'@args': [4], 'base': 2}})
assert f.y(0) == 16
def test_func_parse_descriptor_constant():
f = Curve.parse_descriptor({'$constant': 10})
assert f.y(0) == 10
def test_func_parse_descriptor_fragment_date_decorator():
date = Curve.parse_descriptor({'@date': '2020-02-12 01:23+1200'},
fragment=True)
assert date == 1581427380
def test_func_parse_descriptor_args_decorator():
f = Curve.parse_descriptor({'$add': {'@args': [10, 20]}})
assert f.y(0) == 30
def test_func_parse_descriptor_min():
f = Curve.parse_descriptor({'$min': [1, 2, 3, -1]})
assert f.y(0) == -1
