calculate-utils-4-lib/tests/templates/format/test_patch.py

import pytest
from collections import OrderedDict
from calculate.templates.format.patch_format import PatchFormat
from calculate.templates.template_engine import ParametersContainer


@pytest.mark.patch
class TestParsingMethods:
    def test_if_input_patch_document_contains_only_regular_expressions_without_any_regex_flags__it_correctly_patches_input_document(self):
        input_text = '''
First line
Another meaningless line.
TEXT&DATA
ParameterName = Value
Another line of endless sadness.
            '''

        output_text = '''
First line
Another meaningless line.
TEXT_CONFIG
ParameterName = NewValue
Another line of endless sadness.
            '''

        patch_text = '''<reg>TEXT&amp;DATA</reg>
        <text>TEXT_CONFIG</text>
        <reg>ParameterName\\s*=\\s*[a-zA-Z_][a-zA-Z_0-9]*</reg>
        <text>ParameterName = NewValue</text>
        '''

        patch_original = PatchFormat(input_text)
        patch_template = PatchFormat(patch_text)
        patch_original.join_template(patch_template)

        assert patch_original.document_text == output_text

    def test_if_input_patch_document_contains_regular_expressions_with_global_regex_flags_and_flags_as_attributes__it_correctly_patches_input_document_using_regex_flags(self):
        input_text = '''
#============================== Share Definitions =============================
[homes]
    comment = Home Directories
    browseable = no
    writable = yes

# Un-comment the following and create the netlogon directory for Domain Logons
[netlogon]
    comment = Network Logon Service
    path = /var/lib/samba/netlogon
    guest ok = yes
    writable = no
    share modes = no
            '''

        output_text = '''
#============================== Share Definitions =============================
[homes]
    comment = Home Directories
    browseable = who knows
    writable = yes

# Un-comment the following and create the netlogon directory for Domain Logons
[netlogon]
    comment = Network Logon Service
    path = /var/lib/samba/netlogon
    writable = yes
    share modes = no
            '''

        patch_text = r'''
        <reg dotall="1" multiline="0">(\[netlogon\].*)writable\s*=\s*[a-zA-Z_][a-zA-Z_0-9]*</reg>
        <text>\1writable = yes</text>
        <reg multiline="false" dotall="True">(\[homes\].*)browseable\s*=\s*[a-zA-Z_][a-zA-Z_0-9]*</reg>
        <text>\1browseable = who knows</text>
        <reg>(\[netlogon\].*)^\s*guest ok\s*=\s*[a-zA-Z_][a-zA-Z_0-9]*\n</reg>
        <text>\1</text>
        '''

        parameters = ParametersContainer({'multiline': True, 'dotall': True})

        patch_original = PatchFormat(input_text, parameters=parameters)
        patch_template = PatchFormat(patch_text, parameters=parameters)
        patch_original.join_template(patch_template)

        assert patch_original.document_text == output_text