add: test of parser function

Author: ZLOI27

gendiff/cli.py

@@ -1,7 +1,7 @@
 import argparse
 
 
-def parse_args():
+def parse_args(args=None):
     parser = argparse.ArgumentParser(
         prog='gendiff',
         description='Compares two configuration files and shows a difference.',
@@ -12,4 +12,4 @@ def parse_args():
     parser.add_argument('first_file')
     parser.add_argument('second_file')
 
-    return parser.parse_args()
+    return parser.parse_args(args)

tests/test_gendiff.py

@@ -4,6 +4,7 @@
 import pytest
 
 from gendiff.gendiff import generate_diff, read_file_json, sort_list
+from gendiff.cli import parse_args
 
 
 @pytest.fixture
@@ -75,4 +76,14 @@ def test_generate_diff(temp_dir_with_files):
     "}")
     file1_path = os.path.join(temp_dir_with_files, 'file1.json')
     file2_path = os.path.join(temp_dir_with_files, 'file2.json')
-    assert generate_diff(file1_path, file2_path) == right_str
+    assert generate_diff(file1_path, file2_path) == right_str
+
+
+def test_parse_args_with_args():
+    test_args = ['--format', 'test_format', 'file1.json', 'file2.json']
+
+    args = parse_args(test_args)
+
+    assert args.format == 'test_format'
+    assert args.first_file == 'file1.json'
+    assert args.second_file == 'file2.json'