Tests

builtin

Name	Description
odd	Return true if the variable is odd.
even	Return true if the variable is even.
divisibleby	Check if a variable is divisible by a number.
defined	Return true if the variable is defined:
undefined	Like :func:defined but the other way round.
filter	Check if a filter exists by name. Useful if a filter may be
test	Check if a test exists by name. Useful if a test may be
none	Return true if the variable is none.
boolean	Return true if the object is a boolean value.
false	Return true if the object is False.
true	Return true if the object is True.
integer	Return true if the object is an integer.
float	Return true if the object is a float.
lower	Return true if the variable is lowercased.
upper	Return true if the variable is uppercased.
string	Return true if the object is a string.
mapping	Return true if the object is a mapping (dict etc.).
number	Return true if the variable is a number.
sequence	Return true if the variable is a sequence. Sequences are variables
iterable	Check if it's possible to iterate over an object.
callable	Return whether the object is callable (i.e., some kind of function).
sameas	Check if an object points to the same memory address than another
escaped	Check if the value is escaped.
in	Check if value is in seq.
eq	Same as a == b.
ne	Same as a != b.
gt	Same as a > b.
ge	Same as a >= b.
lt	Same as a < b.
le	Same as a <= b.

environment

Name	Description
template	Check whether given template path exists.

file

Name	Description
folder_with_files	Check if given directory exists and contains any files.
file	Test whether a path is a regular file
dir	Return true if the pathname refers to an existing directory.

inspect

Name	Description
abstract	Return true if the object is an abstract base class (ABC).
routine	Return true if the object is any kind of function or method.
module	Return true if the object is a module.
class	Return true if the object is a class.
method	Return true if the object is an instance method.
function	Return true if the object is a user-defined function.
generatorfunction	Return true if the object is a user-defined generator function.
generator	Return true if the object is a generator.
coroutinefunction	Return true if the object is a coroutine function.
coroutine	Return true if the object is a coroutine.
awaitable	Return true if object can be passed to an await expression.
asyncgenfunction	Return true if the object is an asynchronous generator function.
asyncgen	Return true if the object is an asynchronous generator.
traceback	Return true if the object is a traceback.
frame	Return true if the object is a frame object.
code	Return true if the object is a code object.
methodwrapper	Return true if the object is a method wrapper.
methoddescriptor	Return true if the object is a method descriptor.
datadescriptor	Return true if the object is a data descriptor.
getsetdescriptor	Return true if the object is a getset descriptor.
memberdescriptor	Return true if the object is a member descriptor.

python

Name	Description
python_keyword	Return true when given string represents a python keyword.
python_builtin	Return true when given fn / string represents a python builtin.
in_std_library	Return true when given fn / string is part of the std library.

system

Name	Description
installed	Returns true if a package with given name is found.
env_var	Returns true if an environment variable with given name has a value.

text

Name	Description
indented	Check whether all lines of given text are indented.

type

Name	Description
number	Try to convert value to a float.
list	Return whether a value is a list.
set	Return whether a value is a set.
tuple	Return whether a value is a tuple.
dict	Return whether a value is a tuple.
type	Return whether a value is a type.
datetime	Return whether a value is a datetime.
string_like	Return whether a value is a string or string like object.
subclass	Like the issubclass builtin, but also accepts strs as type.
instance	Like the isinstance builtin, but also accepts strs as type.

url

Name	Description
http_url	Return true when given string represents a HTTP url.
fsspec_url	Returns true if the given URL looks like an fsspec protocol, except http/https.
url	Return true when given string represents any type of URL.