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# coding: utf-8
"""
various test cases for YAML files
"""
import sys
import io
import pytest # type: ignore # NOQA
import platform
from roundtrip import round_trip, dedent, round_trip_load, round_trip_dump # type: ignore # NOQA
class TestYAML:
def test_backslash(self) -> None:
round_trip("""
handlers:
static_files: applications/\\1/static/\\2
""")
def test_omap_out(self) -> None:
# ordereddict mapped to !!omap
from ruamel.yaml.compat import ordereddict
import ruamel.yaml # NOQA
x = ordereddict([('a', 1), ('b', 2)])
res = round_trip_dump(x, default_flow_style=False)
assert res == dedent("""
!!omap
- a: 1
- b: 2
""")
def test_omap_roundtrip(self) -> None:
round_trip("""
!!omap
- a: 1
- b: 2
- c: 3
- d: 4
""")
# @pytest.mark.skipif(sys.version_info < (2, 7),
# reason='collections not available')
# def test_dump_collections_ordereddict(self) -> None:
# from collections import OrderedDict
# import ruamel.yaml # NOQA
# # OrderedDict mapped to !!omap
# x = OrderedDict([('a', 1), ('b', 2)])
# res = round_trip_dump(x, default_flow_style=False)
# assert res == dedent("""
# !!omap
# - a: 1
# - b: 2
# """)
@pytest.mark.skipif( # type: ignore
sys.version_info >= (3, 0) or platform.python_implementation() != 'CPython',
reason='ruamel.yaml not available',
)
def test_dump_ruamel_ordereddict(self) -> None:
from ruamel.ordereddict import ordereddict
import ruamel.yaml # NOQA
# OrderedDict mapped to !!omap
x = ordereddict([('a', 1), ('b', 2)])
res = round_trip_dump(x, default_flow_style=False)
assert res == dedent("""
!!omap
- a: 1
- b: 2
""")
def test_CommentedSet(self) -> None:
from ruamel.yaml.constructor import CommentedSet
s = CommentedSet(['a', 'b', 'c'])
s.remove('b')
s.add('d')
assert s == CommentedSet(['a', 'c', 'd'])
s.add('e')
s.add('f')
s.remove('e')
assert s == CommentedSet(['a', 'c', 'd', 'f'])
def test_set_out(self) -> None:
# preferable would be the shorter format without the ': null'
import ruamel.yaml # NOQA
x = set(['a', 'b', 'c'])
# cannot use round_trip_dump, it doesn't show null in block style
buf = io.StringIO()
yaml = ruamel.yaml.YAML(typ='unsafe', pure=True)
yaml.default_flow_style = False
yaml.dump(x, buf)
assert buf.getvalue() == dedent("""
!!set
a: null
b: null
c: null
""")
# ordering is not preserved in a set
def test_set_compact(self) -> None:
# this format is read and also should be written by default
round_trip("""
!!set
? a
? b
? c
""")
def test_blank_line_after_comment(self) -> None:
round_trip("""
# Comment with spaces after it.
a: 1
""")
def test_blank_line_between_seq_items(self) -> None:
round_trip("""
# Seq with empty lines in between items.
b:
- bar
- baz
""")
@pytest.mark.skipif( # type: ignore
platform.python_implementation() == 'Jython', reason='Jython throws RepresenterError'
)
def test_blank_line_after_literal_chip(self) -> None:
s = """
c:
- |
This item
has a blank line
following it.
- |
To visually separate it from this item.
This item contains a blank line.
"""
d = round_trip_load(dedent(s))
print(d)
round_trip(s)
assert d['c'][0].split('it.')[1] == '\n'
assert d['c'][1].split('line.')[1] == '\n'
@pytest.mark.skipif( # type: ignore
platform.python_implementation() == 'Jython', reason='Jython throws RepresenterError'
)
def test_blank_line_after_literal_keep(self) -> None:
""" have to insert an eof marker in YAML to test this"""
s = """
c:
- |+
This item
has a blank line
following it.
- |+
To visually separate it from this item.
This item contains a blank line.
...
"""
d = round_trip_load(dedent(s))
print(d)
round_trip(s)
assert d['c'][0].split('it.')[1] == '\n\n'
assert d['c'][1].split('line.')[1] == '\n\n\n'
@pytest.mark.skipif( # type: ignore
platform.python_implementation() == 'Jython', reason='Jython throws RepresenterError'
)
def test_blank_line_after_literal_strip(self) -> None:
s = """
c:
- |-
This item
has a blank line
following it.
- |-
To visually separate it from this item.
This item contains a blank line.
"""
d = round_trip_load(dedent(s))
print(d)
round_trip(s)
assert d['c'][0].split('it.')[1] == ""
assert d['c'][1].split('line.')[1] == ""
def test_load_all_perserve_quotes(self) -> None:
import ruamel.yaml # NOQA
yaml = ruamel.yaml.YAML()
yaml.preserve_quotes = True
s = dedent("""\
a: 'hello'
---
b: "goodbye"
""")
data = []
for x in yaml.load_all(s):
data.append(x)
buf = ruamel.yaml.compat.StringIO()
yaml.dump_all(data, buf)
out = buf.getvalue()
print(type(data[0]['a']), data[0]['a'])
# out = ruamel.yaml.round_trip_dump_all(data)
print(out)
assert out == s
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