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How to use my_predicate method in Playwright Python

Best Python code snippet using playwright-python

parser.py

Source:parser.py

1###################################################################2# Barbora Å mahlÃkovÃ¡3# 2020/20214# S1S formula parser5###################################################################6from automaton import Automaton7from intersection import *8from union import *9from atomic_automata import *10from complement import *11from tree import *12import math13import itertools14import re15from copy import deepcopy16def analyse_predicates(file_text):17    """Analyses user-defined predicates."""18    predicates={}19    # user-defined predicates20    lines = file_text.split('\n')21    error=False22    for line in lines:23        if len(line)!=0 and line.split()[0]=="#define": #line[0]=='#':24            my_predicate=""25            i=726            if not line[i].isspace():27                error=True28                break29            30            # skip spaces31            while i<len(line) and line[i].isspace():32                i+=133            if line[i]!='(':34                # wrong format35                error=True36                break37            # predicate in parentheses38            left=039            right=040            while i<len(line):41                if line[i]=='(':42                    left+=143                elif line[i]==')':44                    right+=145                my_predicate+=line[i]46                i+=147                if left==right and left!=0:48                    break49            while i<len(line) and line[i].isspace():50                i+=151            if i==len(line):52                error=True53            54            # predicate definition55            definition=""56            while i<len(line):57                definition+=line[i]58                i+=159            60            new_pred=""61            i=162            while i<len(my_predicate):63                if my_predicate[i]=='(' or my_predicate[i].isspace():64                    break65                new_pred+=my_predicate[i]66                i+=167            68            variables=[]69            while i<len(my_predicate):70                if my_predicate[i].isalpha():71                    variables.append(my_predicate[i])72                i+=173            a = parse(definition, predicates)74            tmp = 175            for var in variables:76                for i in range(len(a.transitions)):77                    a.transitions[i][1] = a.transitions[i][1].replace(var, "#"+str(tmp))78                new_alphabet = set()79                for symbol in a.alphabet:80                    new = symbol.replace(var, "#"+str(tmp))81                    new_alphabet.add(new)82                a.alphabet = deepcopy(new_alphabet)83                tmp += 184            if "--rabit" in sys.argv:85                a = rabit_reduction(a)86            87            predicates[new_pred]=[len(variables), a]88        89        else:90            break91    if error:92        raise SyntaxError("Wrong format of user-defined predicates!")93    return predicates94def parse(file_text, predicates):95    """Creates a list of elements from S1S formula."""96    # skip lines with user-defined predicates97    lines = file_text.split('\n')98    new_text=""99    for line in lines:100        if not(len(line)!=0 and line[0]=='#'):101            new_text+=line102    formula=[]103    element=""104    left=0  # number of parentheses105    right=0106    for c in new_text:107        # parentheses108        if c=='(' or c==')':109            if element!="":110                formula.append(element)111                element=""112            formula.append(c)113            if c=='(':114                left+=1115            if c==')':116                right+=1117        118        # skip spaces119        elif c.isspace() and element!="":120            formula.append(element)121            element=""122        123        # load whole element124        elif not c.isspace():125            element+=c126    if left!=right:127        raise SyntaxError("Invalid form of input formula (parentheses not matching).")128    129    #create_tree(formula, predicates)130    a = create_automaton(formula, predicates) 131    edit_transitions(a)132    return a 133    134    135def create_automaton(formula, predicates):136    """Creates Buchi automaton from S1S formula."""137    138    if "--spot" in sys.argv:139        spot = True140    else:141        spot = False142    if "--rabit" in sys.argv:143        rabit = True144    else:145        rabit = False146    147    stack=[]148    atom=[]149    first=True  150    for element in formula:151        if element!=")":152            stack.append(element)153        else:154            atom.append(element)155            # pop everything to '(' and add to atom156            while(stack[-1]!="("):157                atom.append(stack.pop())158            atom.append(stack.pop())159            atom.reverse()160            error=False161            # user-defined predicates162            if atom[1] in predicates.keys():163                a = deepcopy(predicates[atom[1]][1])164                for i in range(predicates[atom[1]][0]):165                    for j in range(len(a.transitions)):166                        a.transitions[j][1] = a.transitions[j][1].replace("#"+str(i+1), atom[i+2])167                    new_alphabet = set()168                    for symbol in a.alphabet:169                        new = symbol.replace("#"+str(i+1), atom[i+2])170                        new_alphabet.add(new)171                    a.alphabet = deepcopy(new_alphabet)172            # operations with automata173            elif atom[1]=="exists":174                if not (isinstance(atom[3], Automaton)):175                    error=True176                else:177                    a=exists(atom[2],atom[3])178            elif atom[1]=="forall":179                if not (isinstance(atom[3], Automaton)):180                    error=True181                else:182                    a = atom[3]183                    if spot:184                        a = spot_complement(a)185                    else:186                        a=comp2(a)187                    a = exists(atom[2], a)188                    if rabit:189                        a = rabit_reduction(a)190                    if spot:191                        a = spot_complement(a)192                    else:193                        a=comp2(a)194            elif atom[1]=="and":195                if not (isinstance(atom[2], Automaton) and isinstance(atom[3], Automaton)):196                    error=True197                else:198                    a=intersection(atom[2],atom[3])199            elif atom[1]=="or":200                if not (isinstance(atom[2], Automaton) and isinstance(atom[3], Automaton)):201                    error=True202                else:203                    a=union(atom[2],atom[3])204            elif atom[1]=="neg":205                if not (isinstance(atom[2], Automaton)):206                    error=True207                else:208                    a = atom[2]209                    if spot:210                        a = spot_complement(a)211                    else:212                        a=comp2(a)213            elif atom[1]=="implies":214                if not (isinstance(atom[2], Automaton) and isinstance(atom[3], Automaton)):215                    error=True216                else:217                    a = atom[2]218                    if spot:219                        a = spot_complement(a)220                    else:221                        a = comp2(a)222                    if rabit:223                        a = rabit_reduction(a)224                    a=union(a, atom[3])225            # atomic automata226            elif atom[1]=="zeroin":227                a=zeroin(atom[2])228            elif atom[1]=="sing":229                a=sing(atom[2])230            elif atom[1]=="sub":231                a=sub(atom[2],atom[3])232            elif atom[1]=="succ":233                a=succ(atom[2],atom[3])234            elif atom[1]=="<":235                a=less(atom[2],atom[3])236            237            else:238                if (not first) or len(atom)!=4:239                    raise SyntaxError('Invalid form of input formula near "{}".'.format(' '.join(map(str,atom))))240                if isinstance(atom[2], Automaton) or isinstance(atom[3], Automaton):241                    raise SyntaxError('Invalid form of input formula near "{}".'.format(atom[1]))242                # arguments of succ or sub can be in parentheses243                atom.remove('(')244                atom.remove(')')245                atom.reverse()246                for i in range(len(atom)):247                    stack.append(atom[len(atom)-i-1])248                atom=[]249                first=False250                continue251            if error:252                raise SyntaxError('Invalid form of input formula near "{}".'.format(atom[1]))253            stack.append(a)254            first=True255            atom=[]256            # reduction257            if rabit:258                a = rabit_reduction(a)259    return a260def rabit_reduction(a):261    "Using Rabit for reduction"262    alphabet = a.alphabet263    write_all_transitions(a)264    write_to_file(a, 'a.ba') # write to a.ba265    stream = os.popen('java -jar ../RABIT250/Reduce.jar a.ba 10')266    output = stream.read()267    #print(output)268    with open('reduced_10_a.ba') as f:269        a = load_data(f) # reduced automaton270    a.alphabet = alphabet271    272    return a273def myfunc():274    if not hasattr(myfunc, "counter"):275        myfunc.counter = 0276    myfunc.counter += 1277    return myfunc.counter278def spot_complement(a):279    "Using Spot for complement"280    281    a = rabit_reduction(a)282    alphabet = a.alphabet283    complete_automaton(a)284    285    # write to .ba file286    write_all_transitions(a)287    write_to_file(a, 'a.ba')288    stream = os.popen('cat a.ba')289    output = stream.read()290    291    # convert to .hoa292    with open('a.hoa', 'w+') as f:293        f.write('HOA: v1\n')294        f.write('States: {}\n'.format(len(a.states)))295        f.write('Start:')296        for state in a.start:297            f.write(" {}".format(state))298        f.write('\n')299        f.write('acc-name: Buchi\n')300        f.write('Acceptance: 1 Inf(0)\n')301        f.write('properties: explicit-labels state-acc trans-labels\n')302        f.write('AP: {}'.format(int(math.log(len(a.alphabet),2))))303        for c in a.alphabet:304            i=0305            symbol_count = 0306            symbols=list()307            while i<len(c):308                f.write(' "{}"'.format(c[i]))309                symbol_count += 1310                symbols.append(c[i])311                i+=4312            break313        f.write('\n')314        f.write('--BODY--\n')315        for state in a.states:316            f.write('State: {}'.format(state))317            if state in a.accept:318                f.write(' {0}')319            f.write('\n')320            for t in a.transitions:321                if t[0]==state:322                    string=""323                    i=0324                    while i<symbol_count:325                        if "{}:0".format(symbols[i]) in t[1]:326                            word = "!{}".format(i)327                        else:328                            word = "{}".format(i)329                        if i==0:330                            string += word331                        else:332                            string += " & {}".format(word)333                        i+=1334                    f.write('[{}] {}\n'.format(string, t[2]))335        f.write('--END--\n')336    # export .hoa files337    #endFile = 'aut/'+sys.argv[-1]+'-'+str(myfunc())+'.hoa'338    #stream = subprocess.Popen('cp a.hoa ' + endFile, shell=True)339    #stream.wait()340    # complement using spot341    stream = subprocess.Popen('autfilt --complement --ba a.hoa >a_neg.hoa', shell=True)342    stream.wait()343    b = Automaton(set(), a.alphabet, list(), set(), set())344    with open('a_neg.hoa') as src:345        for line in src:346            if "States" in line:347                split = line.split()348                for state in split:349                    if state.isdigit():350                        for i in range(int(state)):351                            b.states.add(str(i))352            elif "Start" in line:353                split = line.split()354                for state in split:355                    if state.isdigit():356                        b.start.add(state)357            elif "State:" in line:358                split = line.split()359                for s in split:360                    if s.isdigit():361                        current = s362                    elif "{0}" in s:363                        b.accept.add(current)364            elif "[" in line:365                split = line.split()366                for state in split:367                    if state.isdigit():368                        dst = state369                370                newline = re.search('\[(.+?)\]',line).group(1)371                newline = newline.replace('[','')372                newline = newline.replace(']','')373                newline = newline.replace('|','')374                split = newline.split()375                for option in split:376                    string=""377                    for i in range(symbol_count):378                        if "!{}".format(i) in option:379                            if i==0:380                                string += "{}:0".format(symbols[i])381                            else:382                                string += "|{}:0".format(symbols[i])383                        elif str(i) in option:384                            if i==0:385                                string += "{}:1".format(symbols[i])386                            else:387                                string += "|{}:1".format(symbols[i])388                        else:389                            if i==0:390                                string += "{}:?".format(symbols[i])391                            else:392                                string += "|{}:?".format(symbols[i])393                    if [current, string, dst] not in b.transitions:394                        b.transitions.append([current, string, dst])395        396        write_all_transitions(b)397        write_to_file(b, 'a.ba')398    with open('a.ba') as f:399        a = load_data(f)400    a.alphabet = alphabet401    a = rabit_reduction(a)...

test_matchers.py

Source:test_matchers.py

...63    assert c == "act"64    assert "act" == c65    assert c is not a66def test_pretty_print_any_such_that():67    def my_predicate(x):68        return True69    a = Any()70    aa = a.such_that(my_predicate).such_that(lambda: True)71    assert repr(aa) == repr(a) + ".such_that(my_predicate).such_that(<lambda>)"72    assert str(aa) == str(a) + ".such_that(my_predicate).such_that(<lambda>)"73    class Predicate(object):74        @classmethod75        def __call__(cls, x):76            return True77    b = Any(str)78    bb = b.such_that(Predicate)79    assert repr(bb) == repr(b) + ".such_that(Predicate)"80    assert str(bb) == str(b) + ".such_that(Predicate)"81def test_contains_equality():...

validation_classes.py

Source:validation_classes.py

1import hashlib2class Md5sumValidator:3    def __init__(self, test_name, input_file, expected_md5sum, comment=None):4        self.test_name = test_name5        self.input_file = input_file6        self.expected_md5sum = expected_md5sum7        self.test_type = "md5sum"8        self.comment = comment9    def is_valid(self):10        return get_md5sum(self.input_file, self.comment) == self.expected_md5sum11    def __eq__(self, other):12        return (13            self.test_name == other.test_name14            and self.input_file == other.input_file15            and self.expected_md5sum == other.expected_md5sum16            and self.comment == other.comment17        )18def get_md5sum(filepath, comment=None):19    """20    Compute the md5 sum for a file.21    If `comment` is specified, ignore all lines of the file that start with22    this comment-character.23    :param filepath: a path to a file, a string.24    :param comment: the comment character for the file; all lines that start25    with this character will be disregarded.26    :return: the md5sum for the file, as a string27    """28    my_predicate = lambda x: True29    if comment is not None:30        my_predicate = lambda x: not x.startswith(comment)31    try:32        # We assume the file isn't binary33        my_hash = hashlib.md5()34        with open(filepath, "r") as f:35            for line in filter(my_predicate, f):36                my_hash.update(line.encode("utf-8"))37    except UnicodeDecodeError:38        # If there are any encoding errors, we try treating the file as if it's39        # binary40        my_hash = hashlib.md5()41        with open(filepath, "rb") as f:42            for chunk in iter(lambda: f.read(4096), b""):43                my_hash.update(chunk)44    except:45        raise...

decorator1.py

Source:decorator1.py

1#!/usr/bin/python2#https://www.jeffknupp.com/blog/2013/11/29/improve-your-python-decorators-explained/3def is_even(value):4    """Return True if *value* is even."""5    return (value % 2) == 06def count_occurrences(target_list, predicate):7    """Return the number of times applying the callable *predicate* to a8    list element returns True."""9    return sum([1 for e in target_list if predicate(e)])10my_predicate = is_even11my_list = [1, 2, 4, 6, 7, 8, 9, 11, 12]12result = count_occurrences(my_list, my_predicate)...

Playwright tutorial

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