Expecter Gadget, a better expectation (assertion) library
Project description
======
BASICS
======
Expecter Gadget helps you to write assertions. Never again will you forget
which is expected and which is actual!
Basic expectations are easy:
>>> from expecter import expect
>>> expect('some' + 'thing') == 'something'
expect('something')
>>> expect(1) > 100
Traceback (most recent call last):
...
AssertionError: Expected something greater than 100 but got 1
Just read the expectations like a sentence. "expect(2) == 1 + 1" reads as
"Expect 2 to equal 1 + 1". Obviously, the expectation is about 2, and it's
being compared to 1 + 1. No ambiguity!
==========
EXCEPTIONS
==========
Expectations about exceptions use the "with" statement. Everything is good if
the expected exception is raised:
>>> from __future__ import with_statement
>>> with expect.raises(KeyError):
... {}[123]
If it's not raised, Expecter Gadget will raise an AssertionError:
>>> with expect.raises(KeyError):
... pass
Traceback (most recent call last):
...
AssertionError: Expected an exception of type KeyError but got none
Exceptions that don't match the expected one will not be swallowed, so your
test will error as you expect:
>>> from __future__ import with_statement
>>> with expect.raises(NameError):
... {}[123]
Traceback (most recent call last):
...
KeyError: 123
BASICS
======
Expecter Gadget helps you to write assertions. Never again will you forget
which is expected and which is actual!
Basic expectations are easy:
>>> from expecter import expect
>>> expect('some' + 'thing') == 'something'
expect('something')
>>> expect(1) > 100
Traceback (most recent call last):
...
AssertionError: Expected something greater than 100 but got 1
Just read the expectations like a sentence. "expect(2) == 1 + 1" reads as
"Expect 2 to equal 1 + 1". Obviously, the expectation is about 2, and it's
being compared to 1 + 1. No ambiguity!
==========
EXCEPTIONS
==========
Expectations about exceptions use the "with" statement. Everything is good if
the expected exception is raised:
>>> from __future__ import with_statement
>>> with expect.raises(KeyError):
... {}[123]
If it's not raised, Expecter Gadget will raise an AssertionError:
>>> with expect.raises(KeyError):
... pass
Traceback (most recent call last):
...
AssertionError: Expected an exception of type KeyError but got none
Exceptions that don't match the expected one will not be swallowed, so your
test will error as you expect:
>>> from __future__ import with_statement
>>> with expect.raises(NameError):
... {}[123]
Traceback (most recent call last):
...
KeyError: 123
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
expecter-0.1.3.tar.gz
(2.2 kB
view details)
File details
Details for the file expecter-0.1.3.tar.gz.
File metadata
- Download URL: expecter-0.1.3.tar.gz
- Upload date:
- Size: 2.2 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
d8f616339a0d27745ad1f00e6adbe37d66380dcb786b2f9b554ec9b164110abf
|
|
| MD5 |
60eb5c31433eef3082d214e7263a2b38
|
|
| BLAKE2b-256 |
2558252cd1092c2e6991a8624fd24f2377dc23b52c66b1030ea4f307f4ad1c50
|