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from dcos import util
from dcos.errors import DCOSException
import pytest
def test_render_mustache_json():
# x's value expands to a JSON array
# y's value expands to a JSON object
# z's value expands to a JSON string
template = '{ "x": {{{xs}}}, "y": {{{ys}}}, "z": "{{{z}}}"}'
xs = [1, 2, 3]
ys = {'y1': 1, 'y2': 2}
z = 'abc'
data = {'xs': xs, 'ys': ys, 'z': z}
result = util.render_mustache_json(template, data)
assert type(result) is dict
assert result.get('x') == xs
assert result.get('y') == ys
assert result.get('z') == z
def test_open_file():
path = 'nonexistant_file_name.txt'
with pytest.raises(DCOSException) as excinfo:
with util.open_file(path):
pass
assert 'Error opening file [{}]: No such file or directory'.format(path) \
in str(excinfo.value)
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