test object can't see libraries called by script under test-CodePudding

I'm testing a script that mainly consists of an object Foo, which imports a library bar.

import bar

class Foo():
    *do stuff*

f = Foo()
*do stuff*

Now I create a unittest class to test Foo.

import foo

class FooTest(unittest.TestCase):
    def setUp(self):
        self.foo = foo.Foo()
    
    *do tests*

Later, it has a line like:

bar.method(...)

This fails with 'bar not defined', but shouldn't it be imported via import foo? How do automatically load whatever is required by the script under test?

CodePudding user response：

The importer model indeed imports everything from the other file, but under the imported model name as a namespace. See an example:

so_imported.py

import json

class Test:
    def __init__(self) -> None:
        self.text = "A phrase"

so_import.py

import so_imported

class Test2:
    def __init__(self) -> None:
        self.inner = {"test": so_imported.Test().text}
        print(so_imported.json.dumps(self.inner))

Test2()

So you see the json library imported under the module's namespace ?

If you want to import everything from the imported file without any namespaces, you can use: from foo import *. Then the objects will be merged into the importer namespace.