def test_curve_header():
parser = Parser(data.text['curve_header'])
curve_header = parser.curve_header()
mnemonics = curve_header.mnemonics()
assert len(curve_header.descriptors) == 6
assert forall(["dept", "netgross", "facies", "porosity", "gamma", "depth"],
lambda m: m in mnemonics)
def test_to_las():
ch = data.curve_header
parser = Parser(ch.to_las())
nch = parser.curve_header()
assert ch == nch
