Ggtcf

Taxes on Dividends in a Roth IRA

I found an audio circuit and I built it just fine, but I find it a bit too quiet. How do I amplify the output so that it is a bit louder?

Review your own paper in Mathematics

Does "he squandered his car on drink" sound natural?

Change the color of a single dot in `ddot` symbol

Creating two special characters

How can ping know if my host is down

Delete multiple columns using awk or sed

Mimic lecturing on blackboard, facing audience

How to explain what's wrong with this application of the chain rule?

What (the heck) is a Super Worm Equinox Moon?

What does Apple's new App Store requirement mean

Shouldn’t conservatives embrace universal basic income?

How much theory knowledge is actually used while playing?

Multiplicative persistence

Is this toilet slogan correct usage of the English language?

Why Shazam when there is already Superman?

Why do Radio Buttons not fill the entire outer circle?

It grows, but water kills it

Why is so much work done on numerical verification of the Riemann Hypothesis?

Does an advisor owe his/her student anything? Will an advisor keep a PhD student only out of pity?

What features enable the Su-25 Frogfoot to operate with such a wide variety of fuels?

Why do ¬, ∀ and ∃ have the same precedence?

Were Persian-Median kings illiterate?

assert_raises() from nose.tools won't work right

How to use nose's assert_raises?How to randomly select an item from a list?How do I remove an element from a list by index in Python?How do you read from stdin?Why can't Python parse this JSON data?Why is reading lines from stdin much slower in C++ than Python?How to remove a key from a Python dictionary?Scipy autotest finished with one errorsomething errors were thrown out when I was testing the scikit-learn with nosetestsHow to use a python function from another moduleSkeleton Directory: Why does script fail when nosetests returns no errors?

0

I'm halfway through the book Learn Python the Hard Way by Zed Shaw. The book doesn't have any coverage or documentation for the function assert_raises().

So I tried to run this test:

from nose.tools import *
from ex48.parser import *

def test_except():
 raw_sentence = [('stop', 'the'), ('noun', 'bear'), ('verb', 'kill')]
 assert_raises(ParserError, parse_sentence(raw_sentence))

Here's the error when I tried to run nosetests:

======================================================================
ERROR: tests.parser_tests.test_except
----------------------------------------------------------------------
Traceback (most recent call last):
 File "####/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
 self.test(*self.arg)
 File "####/ex48/tests/parser_tests.py", line 8, in test_except
 assert_raises(ParserError, parse_sentence(raw_sentence))
 File "####/ex48/ex48/parser.py", line 69, in parse_sentence
 obj = parse_object(word_list)
 File "####/ex48/ex48/parser.py", line 53, in parse_object
 raise ParserError("Expected a noun or direction next.")
 ParserError: Expected a noun or direction next.

 ----------------------------------------------------------------------
 Ran 8 tests in 0.008s

 FAILED (errors=1)

Here is where the exception is coming from:

def parse_verb(word_list):
 skip(word_list, 'stop')

 if peek(word_list) == 'verb':
 return match(word_list, 'verb')
 else:
 raise ParserError("Expected a verb next.")

The call to parse_sentence(raw_sentence) is expected to fail. The assert_raises() should work properly, but it doesn't catch the raised exception from parse_verb() yielding a failed test. What do you think is/are the problem/s?

python python-2.7

share|improve this question

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

add a comment | 

0

I'm halfway through the book Learn Python the Hard Way by Zed Shaw. The book doesn't have any coverage or documentation for the function assert_raises().

So I tried to run this test:

from nose.tools import *
from ex48.parser import *

def test_except():
 raw_sentence = [('stop', 'the'), ('noun', 'bear'), ('verb', 'kill')]
 assert_raises(ParserError, parse_sentence(raw_sentence))

Here's the error when I tried to run nosetests:

======================================================================
ERROR: tests.parser_tests.test_except
----------------------------------------------------------------------
Traceback (most recent call last):
 File "####/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
 self.test(*self.arg)
 File "####/ex48/tests/parser_tests.py", line 8, in test_except
 assert_raises(ParserError, parse_sentence(raw_sentence))
 File "####/ex48/ex48/parser.py", line 69, in parse_sentence
 obj = parse_object(word_list)
 File "####/ex48/ex48/parser.py", line 53, in parse_object
 raise ParserError("Expected a noun or direction next.")
 ParserError: Expected a noun or direction next.

 ----------------------------------------------------------------------
 Ran 8 tests in 0.008s

 FAILED (errors=1)

Here is where the exception is coming from:

def parse_verb(word_list):
 skip(word_list, 'stop')

 if peek(word_list) == 'verb':
 return match(word_list, 'verb')
 else:
 raise ParserError("Expected a verb next.")

The call to parse_sentence(raw_sentence) is expected to fail. The assert_raises() should work properly, but it doesn't catch the raised exception from parse_verb() yielding a failed test. What do you think is/are the problem/s?

python python-2.7

share|improve this question

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

add a comment | 

I'm halfway through the book Learn Python the Hard Way by Zed Shaw. The book doesn't have any coverage or documentation for the function assert_raises().

So I tried to run this test:

from nose.tools import *
from ex48.parser import *

def test_except():
 raw_sentence = [('stop', 'the'), ('noun', 'bear'), ('verb', 'kill')]
 assert_raises(ParserError, parse_sentence(raw_sentence))

Here's the error when I tried to run nosetests:

======================================================================
ERROR: tests.parser_tests.test_except
----------------------------------------------------------------------
Traceback (most recent call last):
 File "####/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
 self.test(*self.arg)
 File "####/ex48/tests/parser_tests.py", line 8, in test_except
 assert_raises(ParserError, parse_sentence(raw_sentence))
 File "####/ex48/ex48/parser.py", line 69, in parse_sentence
 obj = parse_object(word_list)
 File "####/ex48/ex48/parser.py", line 53, in parse_object
 raise ParserError("Expected a noun or direction next.")
 ParserError: Expected a noun or direction next.

 ----------------------------------------------------------------------
 Ran 8 tests in 0.008s

 FAILED (errors=1)

Here is where the exception is coming from:

def parse_verb(word_list):
 skip(word_list, 'stop')

 if peek(word_list) == 'verb':
 return match(word_list, 'verb')
 else:
 raise ParserError("Expected a verb next.")

The call to parse_sentence(raw_sentence) is expected to fail. The assert_raises() should work properly, but it doesn't catch the raised exception from parse_verb() yielding a failed test. What do you think is/are the problem/s?

python python-2.7

share|improve this question

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

from nose.tools import *
from ex48.parser import *

def test_except():
 raw_sentence = [('stop', 'the'), ('noun', 'bear'), ('verb', 'kill')]
 assert_raises(ParserError, parse_sentence(raw_sentence))

======================================================================
ERROR: tests.parser_tests.test_except
----------------------------------------------------------------------
Traceback (most recent call last):
 File "####/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
 self.test(*self.arg)
 File "####/ex48/tests/parser_tests.py", line 8, in test_except
 assert_raises(ParserError, parse_sentence(raw_sentence))
 File "####/ex48/ex48/parser.py", line 69, in parse_sentence
 obj = parse_object(word_list)
 File "####/ex48/ex48/parser.py", line 53, in parse_object
 raise ParserError("Expected a noun or direction next.")
 ParserError: Expected a noun or direction next.

 ----------------------------------------------------------------------
 Ran 8 tests in 0.008s

 FAILED (errors=1)

def parse_verb(word_list):
 skip(word_list, 'stop')

 if peek(word_list) == 'verb':
 return match(word_list, 'verb')
 else:
 raise ParserError("Expected a verb next.")

share|improve this question

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

share|improve this question

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

asked May 21 '17 at 7:04

Bruce JimenezBruce Jimenez

32

2 Answers
2

active

oldest

votes

0

Do not call parse_sentence() directly. Instead, pass it as an argument.

assert_raises(ParserError, parse_sentence, raw_sentence)

Even better, use assert_raises() in a with block. See How to use nose's assert_raises?

share|improve this answer

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

add a comment | 

0

This will work

assert_raises(ParserError, parse_verb, raw_sentence) 

share|improve this answer

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f44094078%2fassert-raises-from-nose-tools-wont-work-right%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

0

Do not call parse_sentence() directly. Instead, pass it as an argument.

assert_raises(ParserError, parse_sentence, raw_sentence)

Even better, use assert_raises() in a with block. See How to use nose's assert_raises?

share|improve this answer

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

add a comment | 

0

Do not call parse_sentence() directly. Instead, pass it as an argument.

assert_raises(ParserError, parse_sentence, raw_sentence)

Even better, use assert_raises() in a with block. See How to use nose's assert_raises?

share|improve this answer

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

add a comment | 

Do not call parse_sentence() directly. Instead, pass it as an argument.

assert_raises(ParserError, parse_sentence, raw_sentence)

Even better, use assert_raises() in a with block. See How to use nose's assert_raises?

share|improve this answer

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

assert_raises(ParserError, parse_sentence, raw_sentence)

share|improve this answer

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

edited May 23 '17 at 11:33

Community♦

11

edited May 23 '17 at 11:33

Community♦

11

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

answered May 21 '17 at 7:16

Jim KJim K

7,73111033

0

This will work

assert_raises(ParserError, parse_verb, raw_sentence) 

share|improve this answer

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

add a comment | 

0

This will work

assert_raises(ParserError, parse_verb, raw_sentence) 

share|improve this answer

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

add a comment | 

This will work

assert_raises(ParserError, parse_verb, raw_sentence) 

share|improve this answer

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

assert_raises(ParserError, parse_verb, raw_sentence) 

share|improve this answer

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

edited Mar 8 at 1:13

Trent

1,5392036

edited Mar 8 at 1:13

Trent

1,5392036

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1

answered Mar 8 at 0:02

Kaushik PalKaushik Pal

1