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212 lines
11 KiB
212 lines
11 KiB
import pytest
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from calculate.templates.template_engine import TemplateEngine, Variables,\
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ConditionFailed, DIR, FILE
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from calculate.templates.template_processor import TemplateAction
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APPENDS_SET = TemplateAction().available_appends
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@pytest.mark.template_engine
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class TestTemplateEngine():
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def test_if_an_input_template_contains_calculate_tag_with_some_parameters__the_template_engine_object_will_collect_its_parameters(self):
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input_template = '''{% calculate name = 'filename', path = '/etc/path', force %}'''
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, DIR)
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output_parameters = template_engine.parameters
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assert (output_parameters.name == 'filename' and
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output_parameters.path == '/etc/path' and
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output_parameters.force)
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def test_if_an_input_template_binded_with_datavars_module__variables_available_in_a_template(self):
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input_template = '''{% calculate name = vars.var_1, path = vars.var_2, autoupdate %}'''
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datavars_module = Variables({'vars':
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Variables({'var_1': 'filename',
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'var_2': '/etc/path'})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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template_engine.process_template_from_string(input_template, FILE)
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output_parameters = template_engine.parameters
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assert (output_parameters.name == 'filename' and
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output_parameters.path == '/etc/path' and
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output_parameters.autoupdate)
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def test_if_an_input_template_contains_env_parameter_in_which_module_name_is_assigned__the_variables_from_this_module_can_be_used_in_template_without_determining_of_their_module(self):
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input_template = '''{% calculate name = vars.var_1, env = 'other_vars', path = var_3 %}'''
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datavars_module = Variables({'vars':
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Variables({'var_1': 'filename',
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'var_2': '/etc/path'}),
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'other_vars':
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Variables({'var_3': '/etc/other_path'})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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template_engine.process_template_from_string(input_template, DIR)
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output_parameters = template_engine.parameters
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assert (output_parameters.name == 'filename' and
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output_parameters.path == '/etc/other_path' and
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output_parameters.env == {'other_vars'})
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def test_if_an_input_template_contains_condition_and_it_is_True__the_template_engine_object_will_be_initialized_without_any_exceptions(self):
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input_template = '''{% calculate vars.var_1 < vars.var_2 or (not (var_3 == 'required status') and vars.var_4), env = 'vars' %}'''
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datavars_module = Variables({'vars':
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Variables({'var_1': 12,
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'var_2': 1.2,
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'var_3': 'unrequired status',
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'var_4': True})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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try:
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template_engine.process_template_from_string(input_template, FILE)
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except ConditionFailed:
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pytest.fail('Unexpected ConditionFailed exception.')
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def test_if_an_input_template_contains_several_conditions_and_it_is_False__the_template_engine_raises_ConditionFailed_exception(self):
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input_template = '''{% calculate name = vars.var_1 %}
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{% calculate env = 'other_vars'%}
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{% calculate var_4 < var_5 %}
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{% calculate path = var_3, var_6 == 'value' %}'''
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datavars_module = Variables({'vars':
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Variables({'var_1': 'filename',
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'var_2': '/etc/path'}),
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'other_vars':
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Variables({'var_3': '/etc/other_path',
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'var_4': 12, 'var_5': 1.2,
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'var_6': 'value'})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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with pytest.raises(ConditionFailed):
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template_engine.process_template_from_string(input_template, DIR)
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def test_if_an_input_template_contains_several_calculate_tags__the_template_engine_will_parse_them_all_and_will_contain_all_parameters_and_result_of_all_conditions(self):
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input_template = '''{% calculate name = vars.var_1 %}
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{% calculate env = 'other_vars, vars' %}
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{% calculate var_4 > var_5 %}
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{% calculate path = var_3, var_6 == 'value' %}'''
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datavars_module = Variables({'vars':
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Variables({'var_1': 'filename',
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'var_2': '/etc/path'}),
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'other_vars':
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Variables({'var_3': '/etc/other_path',
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'var_4': 12, 'var_5': 1.2,
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'var_6': 'value'})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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template_engine.process_template_from_string(input_template, FILE)
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output_parameters = template_engine.parameters
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assert (output_parameters.name == 'filename' and
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output_parameters.path == '/etc/other_path' and
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output_parameters.env == {'other_vars', 'vars'})
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def test_if_an_input_template_contains_variables_in_its_text__the_rendered_text_will_contain_values_of_this_variables(self):
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input_template = '''{% calculate name = 'filename', force -%}
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parameter_1 = {{ vars_2.var_3 }}
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{% calculate env = 'vars_1' -%}
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parameter_2 = {{ vars_2.var_4 }}
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parameter_3 = {{ var_1 }}'''
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output_text = '''parameter_1 = value_1
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parameter_2 = value_2
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parameter_3 = 12'''
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datavars_module = Variables({'vars_1':
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Variables({'var_1': 12,
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'var_2': 1.2}),
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'vars_2':
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Variables({'var_3': 'value_1',
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'var_4': 'value_2'})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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template_engine.process_template_from_string(input_template, DIR)
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text = template_engine.template_text
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assert text == output_text
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def test_if_value_of_variable_is_set_using_save_tag__the_new_value_of_variable_can_be_used_in_template(self):
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input_template = '''{% calculate name = 'filename', force -%}
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{% save vars_1.var_3 = 13 -%}
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parameter = {{ vars_1.var_3 - 1 + vars_1.var_2 * 2 }}
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{% save.session vars_1.var_4 = True -%}
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bool parameter = {{ vars_1.var_4 }}'''
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output_text = '''parameter = 14.4
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bool parameter = True'''
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datavars_module = Variables({'vars_1':
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Variables({'var_1': 12,
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'var_2': 1.2})})
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template_engine = TemplateEngine(appends_set=APPENDS_SET,
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datavars_module=datavars_module)
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template_engine.process_template_from_string(input_template, FILE)
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text = template_engine.template_text
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assert text == output_text
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def test_if_an_input_template_contains_pkg_function_with_existing_package_as_its_argument__it_works_correctly_and_pkg_function_returns_version_value(self):
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input_template = '''{% calculate name = 'filename', force -%}
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{% if pkg('dev-lang/python') > 2.7 -%}
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pkg() works correctly.
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{%- else -%}
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pkg() does not work correctly.
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{%- endif -%}'''
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output_text = 'pkg() works correctly.'
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, FILE)
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text = template_engine.template_text
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assert text == output_text
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def test_if_an_input_template_contains_pkg_function_with_package_that_does_not_exist_in_its_argument__it_works_correctly_and_pkg_function_returns_empty_version_value(self):
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input_template = '''{% calculate name = 'filename', force -%}
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{% if pkg('category/name') == Version() -%}
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pkg() works correctly.
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{%- else -%}
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pkg() does not work correctly.
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{%- endif -%}'''
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output_text = 'pkg() works correctly.'
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, FILE)
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text = template_engine.template_text
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assert text == output_text
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def test_if_an_input_template_contains_pkg_function_without_any_arguments_but_with_package_parameter_in_calculate_tag__the_pkg_function_returns_version_value_of_the_package_from_package_parameter(self):
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input_template = '''{% calculate name = 'filename', package='dev-lang/python', force -%}
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{% if pkg() > 2.7 -%}
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pkg() works correctly.
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{%- else -%}
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pkg() does not work correctly.
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{%- endif -%}'''
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output_text = 'pkg() works correctly.'
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, FILE)
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text = template_engine.template_text
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assert text == output_text
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def test_if_an_input_template_contains_pkg_function_without_any_arguments_and_without_package_parameter_in_calculate_tag__the_pkg_function_returns_empty_version_value(self):
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input_template = '''{% calculate name = 'filename', force -%}
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{% if pkg() == Version() -%}
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pkg() works correctly.
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{%- else -%}
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pkg() does not work correctly.
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{%- endif -%}'''
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output_text = 'pkg() works correctly.'
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, FILE)
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text = template_engine.template_text
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assert text == output_text
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def test_if_an_input_template_calculate_tag_contains_pkg_function_with_an_existing_package_in_its_argument__the_pkg_function_returns_version_value_of_the_package_from_package_parameter_without_any_exceptions(self):
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input_template = '''{% calculate name = 'filename', package='dev-lang/python', force -%}
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{% calculate pkg() > 2.7 -%}'''
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try:
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template_engine = TemplateEngine(appends_set=APPENDS_SET)
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template_engine.process_template_from_string(input_template, FILE)
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except ConditionFailed:
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pytest.fail('Unexpected ConditionFailed exception.')
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