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How to use test_set_header method in tox

Best Python code snippet using tox_python

tst_reader.py

Source:tst_reader.py

1# -*- coding: utf-8 -*-2#3# Copyright 2012-2022 BigML4#5# Licensed under the Apache License, Version 2.0 (the "License"); you may6# not use this file except in compliance with the License. You may obtain7# a copy of the License at8#9#     http://www.apache.org/licenses/LICENSE-2.010#11# Unless required by applicable law or agreed to in writing, software12# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT13# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the14# License for the specific language governing permissions and limitations15# under the License.16"""TestReader class17   Manages the test input data, its headers and checks them against the18   model fields data to build the dict input_data.19"""20import sys21import os22from bigml.util import get_csv_delimiter, is_image23from bigml.io import UnicodeReader24from bigmler.utils import BIGML_SYS_ENCODING25from bigmler.checkpoint import file_number_of_lines26from bigmler.utf8recoder import UTF8Recoder27from bigmler.folderreader import FolderReader28def is_folder(folder):29    """Checking if the test_set is a folder """30    if isinstance(folder, str) and os.path.isdir(folder) and \31            os.path.exists(folder):32        return True33    return False34def contains_csv(folder):35    """Checking whether a folder contains a CSV file"""36    files = os.listdir(folder)37    return any(os.path.splitext(filename)[1].replace(".", "").lower() == "csv"38               for filename in files)39class TstReader():40    """Retrieves csv info and builds a input data dict41    """42    def __init__(self, test_set, test_set_header, fields, objective_field,43                 test_separator=None):44        """Builds a generator from a csv file and the fields' model structure45           `test_set`: path to the test data file46           `test_set_header`: boolean, True means that headers are first row47                              in the file48           `fields`: Fields object with the expected fields structure.49           `objective_field`: field_id of the objective field50        """51        self.test_set = test_set52        if isinstance(self.test_set, str) and os.path.isdir(self.test_set) \53                and os.path.exists(self.test_set) and \54                not self.test_set.endswith(os.sep):55            self.test_set += os.sep56        self.directory = None57        if test_set.__class__.__name__ == "StringIO":58            self.test_set = UTF8Recoder(test_set, BIGML_SYS_ENCODING)59        else:60            self.directory = os.path.dirname(self.test_set)61        self.test_set_header = test_set_header62        self.fields = fields63        if (objective_field is not None and64                not objective_field in fields.fields):65            try:66                objective_field = fields.field_id(objective_field)67            except ValueError as exc:68                sys.exit(exc)69        self.objective_field = objective_field70        self.image_fields = []71        try:72            self.image_fields = [column for column in73                                 sorted(fields.fields_by_column_number.keys())74                                 if fields.fields[fields.field_id(column)].get(75                                    "optype") == "image"]76        except ValueError as exc:77            sys.exit(exc)78        self.test_separator = (test_separator79                               if test_separator is not None80                               else get_csv_delimiter())81        if is_folder(self.test_set) and \82                self.image_fields and len(self.image_fields) == 1 \83                and not contains_csv(self.test_set):84            # The test_set points to a directory where images are stored.85            # Only images are read.86            image_field_name = fields.fields[87                fields.field_id(self.image_fields[0])].get(88                "name") if test_set_header else None89            self.test_reader = FolderReader(90                self.test_set,91                filter_fn=is_image,92                header=image_field_name).open_reader()93        else:94            if len(self.test_separator) > 1:95                sys.exit("Only one character can be used as test data "96                         "separator.")97            try:98                self.test_reader = UnicodeReader(99                    self.test_set, delimiter=self.test_separator,100                    lineterminator="\n").open_reader()101            except IOError:102                sys.exit("Error: cannot read test %s" % test_set)103        self.headers = None104        self.raw_headers = None105        self.exclude = []106        if test_set_header:107            self.headers = next(self.test_reader)108            # validate headers against model fields excluding objective_field,109            # that may be present or not110            if objective_field is not None:111                objective_field = fields.field_column_number(objective_field)112            try:113                fields_names = [fields.fields[fields.field_id(i)]114                                ['name'] for i in115                                sorted(fields.fields_by_column_number.keys())116                                if objective_field is None or117                                i != objective_field]118            except ValueError as exc:119                sys.exit(exc)120            self.raw_headers = self.headers[:]121            self.exclude = [i for i in range(len(self.headers))122                            if not self.headers[i] in fields_names]123            self.exclude.reverse()124            if self.exclude:125                if len(self.headers) > len(self.exclude):126                    for index in self.exclude:127                        del self.headers[index]128                else:129                    raise Exception(("No test field matches the model fields."130                                     "\nThe expected fields are:\n\n%s\n\n"131                                     "while "132                                     "the headers found in the test file are:"133                                     "\n\n%s\n\n"134                                     "Use --no-test-header flag if first li"135                                     "ne should not be interpreted as"136                                     " headers." %137                                     (",".join(fields_names),138                                      ",".join(self.headers))).encode("utf-8"))139        else:140            columns = fields.fields_columns[:]141            if objective_field is not None:142                if fields.field_column_number(objective_field) in columns:143                    columns.remove(fields.field_column_number(objective_field))144            self.headers = [fields.fields_by_column_number[column] for145                            column in columns]146            self.raw_headers = self.headers147    def __iter__(self):148        """Iterator method149        """150        return self151    def __next__(self):152        """Returns the next row153        """154        row = next(self.test_reader)155        if self.directory and self.image_fields:156            for index, row_item in enumerate(row):157                if index in self.image_fields:158                    row[index] = os.path.join(self.directory, row_item)159        return row160    def dict(self, row, filtering=True):161        """Returns the row in a dict format according to the given headers162        """163        new_row = row[:]164        if not filtering:165            if self.test_set_header:166                headers = self.raw_headers167            else:168                headers = [self.fields.fields_by_column_number[column] for169                           column in self.fields.fields_columns]170            return dict(list(zip(headers, new_row)))171        for index in self.exclude:172            del new_row[index]173        return self.fields.pair(new_row, self.headers, self.objective_field)174    def number_of_tests(self):175        """Returns the number of tests in the test file176        """177        tests = file_number_of_lines(self.test_set)178        if self.test_set_header:179            tests -= 1180        return tests181    def has_headers(self):182        """Returns whether the test set file has a headers row183        """184        return self.test_set_header185    def close(self):186        """Closing file handler187        """188        try:189            self.test_reader.close_reader()190        except AttributeError:...

test_header_setter.py

Source:test_header_setter.py

...8    9    def tearDown(self):10        super(ContentHeaderSetterTest, self).tearDown()11    12    def test_set_header(self):13        result = self.simulate_get('/test')14        print(result._headers)...

test_sets.py

Source:test_sets.py

1from wye.utils.sets import set_header2def test_set_header():...

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