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test_interpolation.py
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test_interpolation.py
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# Copyright 2015 Docker, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import pytest
from molecule import interpolation
@pytest.fixture
def mock_env():
return {
'FOO': 'foo',
'BAR': '',
'DEPENDENCY_NAME': 'galaxy',
'VERIFIER_NAME': 'testinfra'
}
@pytest.fixture
def interpolator_instance(mock_env):
return interpolation.Interpolator(interpolation.TemplateWithDefaults,
mock_env).interpolate
def test_escaped_interpolation(interpolator_instance):
assert '${foo}' == interpolator_instance('$${foo}')
def test_invalid_interpolation(interpolator_instance):
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('$}')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${}')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${ }')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${ foo}')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${foo }')
with pytest.raises(interpolation.InvalidInterpolation):
interpolator_instance('${foo!}')
def test_interpolate_missing_no_default(interpolator_instance):
assert 'This var' == interpolator_instance('This ${missing} var')
assert 'This var' == interpolator_instance('This ${BAR} var')
def test_interpolate_with_value(interpolator_instance):
assert 'This foo var' == interpolator_instance('This $FOO var')
assert 'This foo var' == interpolator_instance('This ${FOO} var')
def test_interpolate_missing_with_default(interpolator_instance):
assert 'ok def' == interpolator_instance('ok ${missing:-def}')
assert 'ok def' == interpolator_instance('ok ${missing-def}')
assert 'ok /non:-alphanumeric' == interpolator_instance(
'ok ${BAR:-/non:-alphanumeric}')
def test_interpolate_with_empty_and_default_value(interpolator_instance):
assert 'ok def' == interpolator_instance('ok ${BAR:-def}')
assert 'ok ' == interpolator_instance('ok ${BAR-def}')
def test_interpolate_with_molecule_yaml(interpolator_instance):
data = """
---
dependency:
name: $DEPENDENCY_NAME
driver:
name: docker
lint:
name: ansible-lint
platforms:
- name: instance-1
provisioner:
name: ansible
scenario:
name: default
verifier:
name: ${VERIFIER_NAME}
options:
$FOO: bar
""".strip()
x = """
---
dependency:
name: galaxy
driver:
name: docker
lint:
name: ansible-lint
platforms:
- name: instance-1
provisioner:
name: ansible
scenario:
name: default
verifier:
name: testinfra
options:
foo: bar
""".strip()
assert x == interpolator_instance(data)