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# coding: utf-8
from coreapi import Client
from coreapi import Document, Object, Link, Error, Field
from coreapi.exceptions import LinkLookupError
import pytest
@pytest.fixture
def doc():
return Document(
url='http://example.org',
title='Example',
content={
'integer': 123,
'dict': {'key': 'value'},
'link': Link(
url='/',
method='post',
fields=['optional', Field('required', required=True, location='path')]
),
'nested': {'child': Link(url='/123')}
})
@pytest.fixture
def obj():
return Object({'key': 'value', 'nested': {'abc': 123}})
@pytest.fixture
def link():
return Link(
url='/',
method='post',
fields=[Field('required', required=True), 'optional']
)
@pytest.fixture
def error():
return Error(title='', content={'messages': ['failed']})
def _dedent(string):
"""
Convenience function for dedenting multiline strings,
for string comparison purposes.
"""
lines = string.splitlines()
if not lines[0].strip():
lines = lines[1:]
if not lines[-1].strip():
lines = lines[:-1]
leading_spaces = len(lines[0]) - len(lines[0].lstrip(' '))
return '\n'.join(line[leading_spaces:] for line in lines)
# Documents are immutable.
def test_document_does_not_support_key_assignment(doc):
with pytest.raises(TypeError):
doc['integer'] = 456
def test_document_does_not_support_key_deletion(doc):
with pytest.raises(TypeError):
del doc['integer']
# Objects are immutable.
def test_object_does_not_support_key_assignment(obj):
with pytest.raises(TypeError):
obj['key'] = 456
def test_object_does_not_support_key_deletion(obj):
with pytest.raises(TypeError):
del obj['key']
# Children in documents are immutable primitives.
def test_document_dictionaries_coerced_to_objects(doc):
assert isinstance(doc['dict'], Object)
# Container types have a uniquely identifying representation.
def test_document_repr(doc):
assert repr(doc) == (
"Document(url='http://example.org', title='Example', content={"
"'dict': {'key': 'value'}, "
"'integer': 123, "
"'nested': {'child': Link(url='/123')}, "
"'link': Link(url='/', method='post', "
"fields=['optional', Field('required', required=True, location='path')])"
"})"
)
assert eval(repr(doc)) == doc
def test_object_repr(obj):
assert repr(obj) == "Object({'key': 'value', 'nested': {'abc': 123}})"
assert eval(repr(obj)) == obj
def test_link_repr(link):
assert repr(link) == "Link(url='/', method='post', fields=[Field('required', required=True), 'optional'])"
assert eval(repr(link)) == link
def test_error_repr(error):
assert repr(error) == "Error(title='', content={'messages': ['failed']})"
assert eval(repr(error)) == error
# Container types have a convenient string representation.
def test_document_str(doc):
assert str(doc) == _dedent("""
<Example "http://example.org">
dict: {
key: "value"
}
integer: 123
nested: {
child()
}
link(required, [optional])
""")
def test_newline_str():
doc = Document(content={'foo': '1\n2'})
assert str(doc) == _dedent("""
<Document "">
foo: "1
2"
""")
def test_object_str(obj):
assert str(obj) == _dedent("""
{
key: "value"
nested: {
abc: 123
}
}
""")
def test_link_str(link):
assert str(link) == "link(required, [optional])"
def test_error_str(error):
assert str(error) == _dedent("""
<Error>
messages: ["failed"]
""")
def test_document_urls():
doc = Document(url='http://example.org/', title='Example', content={
'a': Document(title='Full', url='http://example.com/123'),
'b': Document(title='Path', url='http://example.org/123'),
'c': Document(title='None', url='http://example.org/')
})
assert str(doc) == _dedent("""
<Example "http://example.org/">
a: <Full "http://example.com/123">
b: <Path "http://example.org/123">
c: <None "http://example.org/">
""")
# Container types support equality functions.
def test_document_equality(doc):
assert doc == {
'integer': 123,
'dict': {'key': 'value'},
'link': Link(
url='/',
method='post',
fields=['optional', Field('required', required=True, location='path')]
),
'nested': {'child': Link(url='/123')}
}
def test_object_equality(obj):
assert obj == {'key': 'value', 'nested': {'abc': 123}}
# Container types support len.
def test_document_len(doc):
assert len(doc) == 4
def test_object_len(obj):
assert len(obj) == 2
# Documents meet the Core API constraints.
def test_document_url_must_be_string():
with pytest.raises(TypeError):
Document(url=123)
def test_document_title_must_be_string():
with pytest.raises(TypeError):
Document(title=123)
def test_document_content_must_be_dict():
with pytest.raises(TypeError):
Document(content=123)
def test_document_keys_must_be_strings():
with pytest.raises(TypeError):
Document(content={0: 123})
def test_object_keys_must_be_strings():
with pytest.raises(TypeError):
Object(content={0: 123})
def test_error_title_must_be_string():
with pytest.raises(TypeError):
Error(title=123)
def test_error_content_must_be_dict():
with pytest.raises(TypeError):
Error(content=123)
def test_error_keys_must_be_strings():
with pytest.raises(TypeError):
Error(content={0: 123})
# Link arguments must be valid.
def test_link_url_must_be_string():
with pytest.raises(TypeError):
Link(url=123)
def test_link_mthod_must_be_string():
with pytest.raises(TypeError):
Link(method=123)
def test_link_fields_must_be_list():
with pytest.raises(TypeError):
Link(fields=123)
def test_link_field_items_must_be_valid():
with pytest.raises(TypeError):
Link(fields=[123])
# Invalid calls to '.action()' should error.
def test_keys_should_be_a_list_or_string(doc):
client = Client()
with pytest.raises(TypeError):
client.action(doc, True)
def test_keys_should_be_a_list_of_strings_or_ints(doc):
client = Client()
with pytest.raises(TypeError):
client.action(doc, ['nested', {}])
def test_keys_should_be_valid_indexes(doc):
client = Client()
with pytest.raises(LinkLookupError):
client.action(doc, 'dummy')
def test_keys_should_access_a_link(doc):
client = Client()
with pytest.raises(LinkLookupError):
client.action(doc, 'dict')
# Documents and Objects have `.data` and `.links` attributes
def test_document_data_and_links_properties():
doc = Document(content={'a': 1, 'b': 2, 'c': Link(), 'd': Link()})
assert sorted(list(doc.data.keys())) == ['a', 'b']
assert sorted(list(doc.links.keys())) == ['c', 'd']
def test_object_data_and_links_properties():
obj = Object({'a': 1, 'b': 2, 'c': Link(), 'd': Link()})
assert sorted(list(obj.data.keys())) == ['a', 'b']
assert sorted(list(obj.links.keys())) == ['c', 'd']