How to use token_generator method in localstack

Best Python code snippet using localstack_python

parser.py

Source:parser.py Github

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1from io_lib import err, out_var, out_proc, debug2import table3__author__ = 'ay27'4'''5文法 字母表示 消除左递归等6<程序>→<分程序> S->T 删去7<分程序>→begin <说明语句表>；<执行语句表> end T->begin H;E end S-> begin H;E end8<说明语句表>→<说明语句>│<说明语句表> ；<说明语句> H->A|H;A H->AH' H'->;AH'|e9<说明语句>→<变量说明>│<函数说明> A->V|F A->integer D | integer function D(D);S10<变量说明>→integer <变量> V->integer C V->integer D11<变量>→<标识符> C->D 删去12<标识符>→<字母>│<标识符><字母>│ <标识符><数字> D->G|DG|DN D->GD' D'->GD'|ND'|e13<字母>→a│b│c│d│e│f│g│h│i│j│k│l│m│n│o │p│q │r│s│t│u│v│w│x│y│z G->a|b|c....14<数字>→0│1│2│3│4│5│6│7│8│9 N->0|1|2...15<函数说明>→integer function <标识符>（<参数>）；<函数体> F->integer function D(M);S16<参数>→<变量> M->C17<函数体>→begin <说明语句表>；<执行语句表> end S->begin H;E end18<执行语句表>→<执行语句>│<执行语句表>；<执行语句> E->B|E;B E->BE' E'->;BE'|e19<执行语句>→<读语句>│<写语句>│<赋值语句>│<条件语句> B->R|W|Z|I20<读语句>→read(<变量>) R->read(C) R->read(D)21<写语句>→write(<变量>) W->write(C) W->write(D)22<赋值语句>→<变量>:=<算术表达式> Z->C:=K Z->D:=K23<算术表达式>→<算术表达式>-<项>│<项> K->K-L|L K->LK' K'=-LK'|e24<项>→<项>*<因子>│<因子> L->L*Y|Y L->YL' L'->*YL'|e25<因子>→<变量>│<常数>│<函数调用> Y->C|O|P Y->D|Q|P26<常数>→<无符号整数> O->Q 删去27<无符号整数>→<数字>│<无符号整数><数字> Q->N|QN Q->NQ' Q'->NQ'|e28<函数调用>→<标识符>（<参数>） P->D(M)29<条件语句>→if<条件表达式>then<执行语句>else <执行语句> I->if U then B else B30<条件表达式>→<算术表达式><关系运算符><算术表达式> U->KVK31<关系运算符> →<│<=│>│>=│=│<> V-><|<=|...32完整的文法如下：331. S->begin HE end 更改：去掉分号342. H->integer V;H' 更改：添上分号353. H'->integer V;H'|e 更改：天上那个分号36# 4. A->integer V374. V->D|function D(M);S385. D->GD'396. D'->GD'|ND'|e407. G->a|b|c....418. N->0|1|2...429. M->D4310. E->BE'4411. E'->;BE'|e4512. B->read(D)|write(D)|if U then B else B|Z4613. Z->D:=K4714. K->LK'4815. K'=-LK'|e4916. L->YL'5017. L'->*YL'|e5118. Y->D|Q|P 更改为：Y->GD'|NQ'|D(M)5219. Q->NQ'5320. Q'->NQ'|e5421. P->D(M) 更改：删去5522. U->KOK5623. O-><|<=|=...57'''58class Variable(object):59 """60 变量名vname: char(16)61 所属过程vproc:char(16)62 分类vkind: 0..1(0—变量、1—形参)63 变量类型vtype: types64 变量层次vlev: int65 变量在变量表中的位置vadr: int(相对第一个变量而言)66 types=(ints)67 """68 def __init__(self, vname, vproc, vkind, vtype, vlen, vadr):69 self.vname = vname70 self.vproc = vproc71 self.vkind = vkind72 self.vtype = vtype73 self.vlen = vlen74 self.vadr = vadr75 def __repr__(self):76 return '%s %s %d %s %d %d' % (self.vname, self.vproc, self.vkind, self.vtype, self.vlen, self.vadr)77class Proc(object):78 """79 过程名pname: char(16)80 过程类型ptype: types81 过程层次plev: int82 第一个变量在变量表中的位置fadr: int83 最后一个变量在变量表中的位置ladr: int84 """85 def __init__(self, pname, ptype, plev):86 self.pname = pname87 self.ptype = ptype88 self.plev = plev89 self.fadr = -190 self.ladr = -191 self.adr = len(proc_table)92 def __repr__(self):93 return '%s %s %d %d %d' % (self.pname, self.ptype, self.plev, self.fadr, self.ladr)94var_table = []95proc_table = []96plevel = 097current_proc = None98current_token = None99current_const = None100line_no = 1101def is_var_exist(token, proc, kind, expected=False):102 """103 在以下场合需要验证变量是否存在：104 1. 引入变量时需要检查是否已定义105 2. 赋值语句的左半部分 Z106 3. 因子表达式 Y107 :param token:108 :param expected: 期望值109 :return:110 """111 for t in var_table:112 if t.vname == token and t.vproc == proc and t.vkind == kind:113 if not expected:114 return False115 # err('CheckVarExist : expected=False, but now is True %s' % token)116 else:117 return True118 if expected:119 return False120 # err('CheckVarExist : expected=True, but now is False %s' % token)121 return False122def add_var(token, proc, kind, type, vlev):123 """124 只有两个地方会引入新变量：125 1. 变量定义和函数定义 V126 2. read B127 :param token:128 :param proc:129 :param kind: 分类vkind: 0..1(0—变量、1—形参)130 :param type:131 :param vlev:132 :return:133 """134 if is_var_exist(token, proc=proc, kind=kind, expected=False):135 err('In line %d AddVar : can not define a variable in twice' % line_no)136 var_table.append(Variable(token, proc, kind, type, vlev, len(var_table)))137 for i in range(0, proc.plev):138 if proc_table[i].plev < vlev or (proc_table[i].plev == vlev and proc_table[i].adr == proc.adr):139 proc_table[i].ladr += 1140def next_token(dyd_file):141 rep = None142 global line_no143 for line in dyd_file:144 debug(line)145 if line is not None and len(line) > 0:146 tmp = line.split()147 if tmp == table.EOF:148 return149 elif tmp is not None and tmp[0] == table.EOLN:150 line_no += 1151 continue152 elif len(tmp) == 2 and tmp[0]:153 while rep is not None and rep:154 rep = yield tmp[0], tmp[1]155 else:156 rep = yield tmp[0], tmp[1]157def match(token, token_id, keyword):158 if token is None:159 return False160 # 标识符161 if keyword == table.SYMBOL and token[0].isalpha() and token.isalnum():162 return True163 # 数字164 if keyword == table.CONST and token.isnumeric():165 return True166 # 关键词167 if keyword == token:168 return True169 # 关系运算符类170 if keyword is None and (token == table.EQUAL or token == table.NOT_EQUAL or token == table.LE or171 token == table.LITTLE or token == table.GE or token == table.GREATER):172 return True173 return False174def parse(dyd_file):175 S(next_token(dyd_file), 'main', 'void')176 for var in var_table:177 out_var(var.vname, var.vproc, var.vkind, var.vtype, var.vlen, var.vadr)178 # 计算每个proc的fadr和ladr，然后输出179 for proc in proc_table:180 for i in range(0, len(var_table) - 1):181 if var_table[i].vproc.adr == proc.adr:182 proc.fadr = i183 break184 for i in range(len(var_table) - 1, 0, -1):185 if var_table[i].vproc.adr == proc.adr:186 proc.ladr = i187 break188 out_proc(proc.pname, proc.ptype, proc.plev, proc.fadr, proc.ladr)189# 1. S->begin HE end190def S(token_generator, pname, ptype):191 global plevel, current_proc192 plevel += 1193 # 注意到函数有且仅有一个参数，而刚进入函数体时，变量表中的最后一个必为此参数194 if len(var_table) == 0:195 current_proc = Proc(pname, ptype, plevel)196 else:197 current_proc = Proc(pname, ptype, plevel)198 var_table[len(var_table) - 1].vproc = current_proc199 proc_table.append(current_proc)200 # 同时，由于在函数内可以直接把自身函数名当成一个变量来使用，所以需要把函数名加入到变量表201 add_var(pname, current_proc, 0, 'integer', plevel)202 token, token_id = next(token_generator)203 if not match(token, token_id, table.BEGIN):204 err('In line %d S : Not start with begin' % line_no)205 H(token_generator)206 # token, token_id = next(token_generator)207 # if not match(token, token_id, table.SEMICOLON):208 # err('S : A ; must follow H')209 E(token_generator)210 token, token_id = next(token_generator)211 if not match(token, token_id, table.END):212 err('In Line %d S : there must be an \'end\'' % line_no)213 plevel -= 1214 current_proc = proc_table[plevel - 1]215 return216# 2. H->integer V;H'217def H(token_generator):218 token, token_id = next(token_generator)219 if not match(token, token_id, table.INTEGER):220 err('In Line %d H : can not match integer' % line_no)221 V(token_generator)222 token, token_id = next(token_generator)223 if not match(token, token_id, table.SEMICOLON):224 err('In Line %d H : can not match ;' % line_no)225 _H(token_generator)226 return227# 3. H'->integer V;H'|e228def _H(token_generator):229 token, token_id = token_generator.send(True)230 # 没有匹配成功，可能是e，需要回退一步231 if not match(token, token_id, table.INTEGER):232 return233 # 匹配integer成功，需要把重复的这个yield冲刷掉234 next(token_generator)235 V(token_generator)236 token, token_id = next(token_generator)237 if not match(token, token_id, table.SEMICOLON):238 err('In Line %d H : can not match ;' % line_no)239 _H(token_generator)240# # 4. A->integer V241# def A(token_generator):242# token, token_id = next(token_generator)243# if not match(token, token_id, table.INTEGER):244# err('A : can not match integer')245# V(token_generator)246# 5. V->D|function D(M);S247def V(token_generator):248 token, token_id = token_generator.send(True)249 if not match(token, token_id, table.FUNCTION):250 D(token_generator)251 add_var(current_token, current_proc, 0, 'integer', plevel)252 return253 # 冲刷掉当前token254 next(token_generator)255 D(token_generator)256 func_name = current_token257 token, token_id = next(token_generator)258 if not match(token, token_id, table.LEFT_BRACKET):259 err('In line %d V : can not match (' % line_no)260 M(token_generator)261 # 由于current_proc尚未生成，先赋值为当前proc，在进入函数时需要重新设置262 add_var(current_token, current_proc, 1, 'integer', plevel + 1)263 token, token_id = next(token_generator)264 if not match(token, token_id, table.RIGHT_BRACKET):265 err('In Line %d V : can not match )' % line_no)266 token, token_id = next(token_generator)267 if not match(token, token_id, table.SEMICOLON):268 err('In Line %d V : can not match ;' % line_no)269 S(token_generator, func_name, 'integer')270# 6. D->GD'271def D(token_generator):272 if not G(token_generator):273 err('In Line %d D : match %s error' % (line_no, current_token))274 _D(token_generator)275 return276# 7. D'->GD'|ND'|e277def _D(token_generator):278 if G(token_generator):279 _D(token_generator)280 elif N(token_generator):281 _D(token_generator)282 else:283 return284# 8. G->a|b|c....285def G(token_generator):286 token, token_id = token_generator.send(True)287 if match(token, token_id, table.SYMBOL):288 next(token_generator)289 global current_token290 current_token = token291 return True292 return False293# 9. N->0|1|2...294def N(token_generator):295 token, token_id = token_generator.send(True)296 if match(token, token_id, table.CONST):297 next(token_generator)298 global current_const299 current_const = token300 return True301 return False302# 10. M->D303def M(token_generator):304 D(token_generator)305# 11. E->BE'306def E(token_generator):307 B(token_generator)308 _E(token_generator)309 return310# 12. E'->;BE'|e311def _E(token_generator):312 token, token_id = token_generator.send(True)313 if not match(token, token_id, table.SEMICOLON):314 return315 next(token_generator)316 B(token_generator)317 _E(token_generator)318# 13. B->read(D)|write(D)|if U then B else B|Z319def B(token_generator):320 token, token_id = token_generator.send(True)321 # func_is_read = match(token, token_id, table.READ)322 if match(token, token_id, table.READ) or match(token, token_id, table.WRITE):323 # 成功，冲刷324 next(token_generator)325 token, token_id = next(token_generator)326 if not match(token, token_id, table.LEFT_BRACKET):327 err('In Line %d B : can not match (' % line_no)328 D(token_generator)329 if not is_var_exist(current_token, current_proc, 0, True):330 err('In Line %d B : can not find token %s' % (line_no, current_token))331 # if func_is_read:332 # add_var(current_token, current_proc, 0, 'integer', plevel)333 token, token_id = next(token_generator)334 if not match(token, token_id, table.RIGHT_BRACKET):335 err('In Line %d B : can not match )' % line_no)336 elif match(token, token_id, table.IF):337 # 成功，冲刷338 next(token_generator)339 U(token_generator)340 token, token_id = next(token_generator)341 if not match(token, token_id, table.THEN):342 err('In Line %d B : can not match then' % line_no)343 B(token_generator)344 token, token_id = next(token_generator)345 if not match(token, token_id, table.ELSE):346 err('In Line %d B : can not match else' % line_no)347 B(token_generator)348 else:349 Z(token_generator)350# 14. Z->D:=K351def Z(token_generator):352 D(token_generator)353 if not is_var_exist(current_token, current_proc, 0, True):354 err('In Line %d Z : token %s not defined' % (line_no, current_token))355 token, token_id = next(token_generator)356 if not match(token, token_id, table.ASSIGN):357 err('In Line %d Z : can not match := %s' % (line_no, token))358 K(token_generator)359# 15. K->LK'360def K(token_generator):361 L(token_generator)362 _K(token_generator)363# 16. K'=-LK'|e364def _K(token_generator):365 token, token_id = token_generator.send(True)366 if not match(token, token_id, table.SUB):367 return368 # 冲刷369 next(token_generator)370 L(token_generator)371 _K(token_generator)372# 17. L->YL'373def L(token_generator):374 Y(token_generator)375 _L(token_generator)376# 18. L'->*YL'|e377def _L(token_generator):378 token, token_id = token_generator.send(True)379 if not match(token, token_id, table.MUL):380 return381 # 冲刷382 next(token_generator)383 Y(token_generator)384 _L(token_generator)385# 19. Y->NQ'|GD'|D(M)386# 其中，D == GD'387def Y(token_generator):388 # 先检查是否是数字389 if N(token_generator):390 _Q(token_generator)391 return392 # 然后检查是否是函数调用393 D(token_generator)394 func_name = current_token395 token, token_id = token_generator.send(True)396 if not match(token, token_id, table.LEFT_BRACKET):397 # 不是函数调用398 if not is_var_exist(current_token, current_proc, 0, True):399 err('In Line %d Y : %s is not defined' % (line_no, current_token))400 _D(token_generator)401 return402 # 确实是函数403 # 检查函数是否已定义404 flag = False405 for proc in proc_table:406 if proc.pname == func_name:407 flag = True408 break409 if not flag:410 err('In Line %d P : function not defined' % line_no)411 # 冲刷412 next(token_generator)413 K(token_generator)414 token, token_id = next(token_generator)415 if not match(token, token_id, table.RIGHT_BRACKET):416 err('In Line %d P : can not match )' % line_no)417# 20. Q->NQ'418def Q(token_generator):419 if not N(token_generator):420 err('In Line %d Q : match number error %s' % (line_no, current_token))421 _Q(token_generator)422# 21. Q'->NQ'|e423def _Q(token_generator):424 if N(token_generator):425 _Q(token_generator)426 else:427 return428# 23. U->KOK429def U(token_generator):430 K(token_generator)431 O(token_generator)432 K(token_generator)433# 24. O-><|<=|=...434def O(token_generator):435 token, token_id = next(token_generator)436 if not match(token, token_id, None):...

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test_utils.py

Source:test_utils.py Github

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1# -*- coding: utf-8 -*-2from django.test import TestCase, tag3from django.utils import six4from django.utils.crypto import salted_hmac5from django.utils.http import int_to_base366import factories7from workflow.models import Dashboard8from .. import utils9@tag('pkg')10class TokenGeneratorTest(TestCase):11 def setUp(self):12 self.token_generator = utils.TokenGenerator()13 def test_get_attr_by_suffix_exist(self):14 tola_user = factories.TolaUser()15 attr = self.token_generator._get_attr_by_suffix(tola_user, 'name')16 self.assertEqual(attr, tola_user.name)17 def test_get_attr_by_suffix_not_exist(self):18 tola_user = factories.TolaUser()19 attr = self.token_generator._get_attr_by_suffix(tola_user, 'test')20 self.assertIsNone(attr)21 def test_make_hash_value_with_uuid_and_no_flag(self):22 tola_user = factories.TolaUser()23 timestamp = self.token_generator._num_days(24 self.token_generator._today())25 expected_hash = (26 six.text_type(tola_user.pk) + tola_user.tola_user_uuid.__str__()27 + six.text_type(timestamp)28 )29 generated_hash = self.token_generator._make_hash_value(30 tola_user, timestamp)31 self.assertEqual(generated_hash, expected_hash)32 def test_make_hash_value_with_uuid_and_flag(self):33 tola_user = factories.TolaUser()34 timestamp = self.token_generator._num_days(35 self.token_generator._today())36 expected_hash = (37 six.text_type(True) + tola_user.tola_user_uuid.__str__()38 + six.text_type(timestamp)39 )40 generated_hash = self.token_generator._make_hash_value(41 tola_user, timestamp, flag=True)42 self.assertEqual(generated_hash, expected_hash)43 def test_make_token_with_timestamp(self):44 tola_user = factories.TolaUser()45 timestamp = self.token_generator._num_days(46 self.token_generator._today())47 test_hash = (48 six.text_type(True) + tola_user.tola_user_uuid.__str__()49 + six.text_type(timestamp)50 )51 ts_b36 = int_to_base36(timestamp)52 hash = salted_hmac(self.token_generator.key_salt,53 test_hash).hexdigest()[::2]54 generated_hash = self.token_generator._make_token_with_timestamp(55 tola_user, timestamp, flag=True)56 self.assertEqual(generated_hash, '{}-{}'.format(ts_b36, hash))57 def test_check_token_no_public_attribute(self):58 tola_user = factories.TolaUser()59 with self.assertRaises(AttributeError) as context:60 self.token_generator.check_token(tola_user, 'TokenTest')61 self.assertTrue('\'dict\' object has no attribute \'test\''62 in context.exception)63 def test_check_token_token_is_none(self):64 tola_user = factories.TolaUser()65 is_valid = self.token_generator.check_token(tola_user, None)66 self.assertFalse(is_valid)67 def test_check_token_instance_is_none(self):68 is_valid = self.token_generator.check_token(None, 'TokenTest')69 self.assertFalse(is_valid)70 def test_check_token_token_wrong_format(self):71 dashboard = factories.Dashboard\72 (public={'all': False, 'org': False, 'url': True})73 timestamp = self.token_generator._num_days(74 self.token_generator._today())75 test_hash = (76 six.text_type(dashboard.public) +77 dashboard.dashboard_uuid.__str__() +78 six.text_type(timestamp)79 )80 ts_b36 = int_to_base36(timestamp)81 hash = salted_hmac(self.token_generator.key_salt,82 test_hash).hexdigest()[::2]83 final_hash = '{}{}'.format(ts_b36, hash)84 is_valid = self.token_generator.check_token(dashboard, final_hash,85 dashboard.public)86 self.assertFalse(is_valid)87 def test_check_token_invalid_timestamp_token(self):88 dashboard = factories.Dashboard(89 public={'all': False, 'org': False, 'url': True})90 timestamp = self.token_generator._num_days(91 self.token_generator._today())92 test_hash = (93 six.text_type(dashboard.public) +94 dashboard.dashboard_uuid.__str__() +95 six.text_type(timestamp)96 )97 hash = salted_hmac(self.token_generator.key_salt,98 test_hash).hexdigest()[::2]99 final_hash = '{}-{}'.format(timestamp, hash)100 is_valid = self.token_generator.check_token(dashboard, final_hash,101 dashboard.public)102 self.assertFalse(is_valid)103 def test_check_token_no_public(self):104 dashboard = factories.Dashboard()105 timestamp = self.token_generator._num_days(106 self.token_generator._today())107 test_hash = (108 six.text_type(dashboard.pk) +109 dashboard.dashboard_uuid.__str__() +110 six.text_type(timestamp)111 )112 hash = salted_hmac(self.token_generator.key_salt,113 test_hash).hexdigest()[::2]114 final_hash = '{}-{}'.format(timestamp, hash)115 is_valid = self.token_generator.check_token(dashboard, final_hash)116 self.assertFalse(is_valid)117 def test_check_token_invalid_token(self):118 dashboard = factories.Dashboard(119 public={'all': False, 'org': False, 'url': True})120 timestamp = self.token_generator._num_days(121 self.token_generator._today())122 test_hash = (123 six.text_type(True) + dashboard.dashboard_uuid.__str__() +124 six.text_type(timestamp)125 )126 hash = salted_hmac(self.token_generator.key_salt,127 test_hash).hexdigest()[::2]128 final_hash = '{}-{}'.format(timestamp, hash)129 is_valid = self.token_generator.check_token(dashboard, final_hash)130 self.assertFalse(is_valid)131 def test_check_token_success_with_flag(self):132 dashboard = factories.Dashboard(133 public={'all': False, 'org': False, 'url': True})134 timestamp = self.token_generator._num_days(135 self.token_generator._today())136 test_hash = (137 six.text_type(dashboard.public['url']) +138 dashboard.dashboard_uuid.__str__() +139 six.text_type(timestamp)140 )141 ts_b36 = int_to_base36(timestamp)142 hash = salted_hmac(self.token_generator.key_salt,143 test_hash).hexdigest()[::2]144 final_hash = '{}-{}'.format(ts_b36, hash)145 is_valid = self.token_generator.check_token(146 dashboard, final_hash, dashboard.public['url'])147 self.assertTrue(is_valid)148 def test_check_token_success_without_flag(self):149 dashboard = factories.Dashboard(150 public={'all': False, 'org': False, 'url': True})151 timestamp = self.token_generator._num_days(152 self.token_generator._today())153 test_hash = (154 six.text_type(dashboard.pk) +155 dashboard.dashboard_uuid.__str__() +156 six.text_type(timestamp)157 )158 ts_b36 = int_to_base36(timestamp)159 hash = salted_hmac(self.token_generator.key_salt,160 test_hash).hexdigest()[::2]161 final_hash = '{}-{}'.format(ts_b36, hash)162 is_valid = self.token_generator.check_token(dashboard, final_hash)...

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test_tokens.py

Source:test_tokens.py Github

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1from unittest.mock import Mock, patch2from django.test import SimpleTestCase3from django.utils.crypto import salted_hmac4from django.utils.http import int_to_base365from projects.tokens import token_generator6class ApiTokenGeneratorTest(SimpleTestCase):7 """ """8 def setUp(self):9 self.project = Mock(pk=1, group_id=1, author_id=2)10 self.project2 = Mock(pk=2, group_id=1, author_id=2)11 def test_make_token(self):12 token = token_generator.make_token(self.project)13 id_b36 = int_to_base36(self.project.pk)14 expected = salted_hmac(15 token_generator.key_salt,16 token_generator._make_hash_value(self.project),17 secret=token_generator.secret,18 ).hexdigest()19 self.assertEqual(token, '-'.join([id_b36, expected]))20 @patch.object(token_generator, 'get_project')21 def test_check_token(self, mget_project):22 mget_project.return_value = self.project23 token = token_generator.make_token(self.project)24 token2 = token_generator.make_token(self.project2)25 self.assertTrue(token_generator.check_token(token))26 self.assertFalse(token_generator.check_token(token2))27 def test_check_token_with_empty_args(self):28 self.assertFalse(token_generator.check_token(None))29 def test_make_hash_value(self):30 hashv = token_generator._make_hash_value(self.project)31 self.assertEqual(hashv, "121")32 @patch.object(token_generator, 'get_project_id', return_value=None)33 def test_get_object_invalid_valid(self, mproject_id):34 self.assertIsNone(token_generator.get_project('invalid'))35 mproject_id.assert_called_with('invalid')36 @patch('projects.tokens.apps.get_model', return_value=Mock())37 @patch.object(token_generator, 'get_project_id', return_value=1)38 def test_get_object_valid_token(self, mproject_id, model):39 self.assertIsNotNone(token_generator.get_project('valid'))40 model().objects.filter.assert_called_with(pk=1)41 model().objects.filter().first.assert_called_with()42 def test_get_object_id_invalid_token(self):43 self.assertIsNone(token_generator.get_project_id('invalid'))44 def test_get_object_id_valid_token(self):...

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