131 lines
4.0 KiB
Python
131 lines
4.0 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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""" Some common utility classes used by tests """
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from datetime import datetime, timedelta, tzinfo
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import re
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class SimpleOffsetTzInfo(tzinfo):
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""" Very simple implementation of datetime.tzinfo offering set timezone offset for datetime instances """
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def __init__(self, offsetInHours=None):
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""" Constructs a new tzinfo instance using an amount of hours as an offset
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:param offsetInHours: The timezone offset, in hours (may be negative)
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:type offsetInHours: int or float
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"""
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if offsetInHours != None: # pragma: no cover
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self.offsetInHours = offsetInHours
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def utcoffset(self, dt):
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return timedelta(hours=self.offsetInHours)
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def dst(self, dt):
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return timedelta(0)
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def __repr__(self):
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return 'gsmmodem.util.SimpleOffsetTzInfo({0})'.format(self.offsetInHours)
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def parseTextModeTimeStr(timeStr):
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""" Parses the specified SMS text mode time string
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The time stamp format is "yy/MM/dd,hh:mm:ss±zz"
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(yy = year, MM = month, dd = day, hh = hour, mm = minute, ss = second, zz = time zone
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[Note: the unit of time zone is a quarter of an hour])
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:param timeStr: The time string to parse
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:type timeStr: str
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:return: datetime object representing the specified time string
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:rtype: datetime.datetime
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"""
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msgTime = timeStr[:-3]
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tzOffsetHours = int(int(timeStr[-3:]) * 0.25)
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return datetime.strptime(msgTime, '%y/%m/%d,%H:%M:%S').replace(tzinfo=SimpleOffsetTzInfo(tzOffsetHours))
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def lineStartingWith(string, lines):
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""" Searches through the specified list of strings and returns the
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first line starting with the specified search string, or None if not found
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"""
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for line in lines:
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if line.startswith(string):
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return line
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else:
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return None
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def lineMatching(regexStr, lines):
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""" Searches through the specified list of strings and returns the regular expression
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match for the first line that matches the specified regex string, or None if no match was found
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Note: if you have a pre-compiled regex pattern, use lineMatchingPattern() instead
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:type regexStr: Regular expression string to use
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:type lines: List of lines to search
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:return: the regular expression match for the first line that matches the specified regex, or None if no match was found
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:rtype: re.Match
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"""
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regex = re.compile(regexStr)
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for line in lines:
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m = regex.match(line)
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if m:
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return m
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else:
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return None
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def lineMatchingPattern(pattern, lines):
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""" Searches through the specified list of strings and returns the regular expression
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match for the first line that matches the specified pre-compiled regex pattern, or None if no match was found
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Note: if you are using a regex pattern string (i.e. not already compiled), use lineMatching() instead
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:type pattern: Compiled regular expression pattern to use
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:type lines: List of lines to search
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:return: the regular expression match for the first line that matches the specified regex, or None if no match was found
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:rtype: re.Match
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"""
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for line in lines:
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m = pattern.match(line)
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if m:
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return m
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else:
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return None
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def allLinesMatchingPattern(pattern, lines):
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""" Like lineMatchingPattern, but returns all lines that match the specified pattern
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:type pattern: Compiled regular expression pattern to use
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:type lines: List of lines to search
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:return: list of re.Match objects for each line matched, or an empty list if none matched
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:rtype: list
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"""
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result = []
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for line in lines:
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m = pattern.match(line)
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if m:
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result.append(m)
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return result
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def removeAtPrefix(string):
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""" Remove AT prefix from a specified string.
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:param string: An original string
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:type string: str
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:return: A string with AT prefix removed
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:rtype: str
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"""
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if string.startswith('AT'):
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return string[2:]
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return string
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