If multipleOf is not set in the schema, then generating a number always attempts to use a step of 1, and throws an exception when no such valid number exists.
>>> from jsf import JSF
>>> JSF({"type": "number", "minimum": 0.1, "maximum": 0.9}).generate()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File ".../lib/python3.8/site-packages/jsf/parser.py", line 251, in generate
return self.root.generate(context=self.context)
File ".../lib/python3.8/site-packages/jsf/schema_types/number.py", line 37, in generate
step * random.randint(math.ceil(float(_min) / step), math.floor(float(_max) / step))
File "/usr/lib/python3.8/random.py", line 248, in randint
return self.randrange(a, b+1)
File "/usr/lib/python3.8/random.py", line 226, in randrange
raise ValueError("empty range for randrange() (%d, %d, %d)" % (istart, istop, width))
ValueError: empty range for randrange() (1, 1, 0)
I suggest a check that max - min is greater than step, and if not try a smaller step.
It is even worse when using exclusive Maximums and Minimums, when it is unable to find any value in a range from 0.1-2.9
>>> JSF({
"type": "number",
"minimum": 0.1,
"maximum": 2.9,
"exclusiveMinimum": True,
"exclusiveMaximum": True
}).generate()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File ".../lib/python3.8/site-packages/jsf/parser.py", line 251, in generate
return self.root.generate(context=self.context)
File ".../lib/python3.8/site-packages/jsf/schema_types/number.py", line 37, in generate
step * random.randint(math.ceil(float(_min) / step), math.floor(float(_max) / step))
File "/usr/lib/python3.8/random.py", line 248, in randint
return self.randrange(a, b+1)
File "/usr/lib/python3.8/random.py", line 226, in randrange
raise ValueError("empty range for randrange() (%d, %d, %d)" % (istart, istop, width))
ValueError: empty range for randrange() (2, 2, 0)
If multipleOf is not set in the schema, then generating a number always attempts to use a step of 1, and throws an exception when no such valid number exists.
I suggest a check that max - min is greater than step, and if not try a smaller step.
It is even worse when using exclusive Maximums and Minimums, when it is unable to find any value in a range from 0.1-2.9