From 21c8c341956bb3c9cac427ab5b951976d70f4245 Mon Sep 17 00:00:00 2001 From: Frederick Muriuki Muriithi Date: Mon, 1 Nov 2021 07:09:26 +0300 Subject: Parse single line from CSV file Issue: https://github.com/genenetwork/gn-gemtext-threads/blob/main/topics/gn1-migration-to-gn2/partial-correlations.gmi * gn3/data_helpers.py: New function (parse_csv_line) * tests/unit/test_data_helpers.py: Add tests for new function (parse_csv_line) Add a function to parse a single line from a CSV file. --- tests/unit/test_data_helpers.py | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'tests') diff --git a/tests/unit/test_data_helpers.py b/tests/unit/test_data_helpers.py index 1eec3cc..39aea45 100644 --- a/tests/unit/test_data_helpers.py +++ b/tests/unit/test_data_helpers.py @@ -4,7 +4,7 @@ Test functions in gn3.data_helpers from unittest import TestCase -from gn3.data_helpers import partition_all +from gn3.data_helpers import partition_all, parse_csv_line class TestDataHelpers(TestCase): """ @@ -35,3 +35,27 @@ class TestDataHelpers(TestCase): ((0, 1, 2, 3, 4, 5, 6, 7, 8, 9), ))): with self.subTest(n=count, items=items): self.assertEqual(partition_all(count, items), expected) + + def test_parse_csv_line(self): + """ + Test parsing a single line from a CSV file + + Given: + - `line`: a line read from a csv file + - `delimiter`: the expected delimiter in the csv file + - `quoting`: the quoting enclosing each column in the csv file + When: + - `line` is parsed with the `parse_csv_file` with the given + parameters + Then: + - return a tuple of the columns in the CSV file, without the + delimiter and quoting + """ + for line, delimiter, quoting, expected in ( + ('"this","is","a","test"', ",", '"', ("this", "is", "a", "test")), + ('"this","is","a","test"', ",", None, ('"this"', '"is"', '"a"', '"test"'))): + with self.subTest(line=line, delimiter=delimiter, quoting=quoting): + self.assertEqual( + parse_csv_line( + line=line, delimiter=delimiter, quoting=quoting), + expected) -- cgit v1.2.3