GH-128520: pathlib ABCs tests: use explicit text encoding (#133105)

Follow-up to fbffd70. Set `encoding='utf-8'` when reading and writing text
in the tests for the private pathlib ABCs, which allows the tests to run
with `-W error -X warn_default_encoding`

1 files changed, 5 insertions, 5 deletions

diff --git a/Lib/test/test_pathlib/test_read.py b/Lib/test/test_pathlib/test_read.py
index 9bb5535a6eb..482203c290a 100644
--- a/Lib/test/test_pathlib/test_read.py
+++ b/Lib/test/test_pathlib/test_read.py
@@ -32,7 +32,7 @@ class ReadTestBase:
 
     def test_open_r(self):
         p = self.root / 'fileA'
-        with magic_open(p, 'r') as f:
+        with magic_open(p, 'r', encoding='utf-8') as f:
             self.assertIsInstance(f, io.TextIOBase)
             self.assertEqual(f.read(), 'this is file A\n')
 
@@ -61,7 +61,7 @@ class ReadTestBase:
 
     def test_read_text(self):
         p = self.root / 'fileA'
-        self.assertEqual(p.read_text(), 'this is file A\n')
+        self.assertEqual(p.read_text(encoding='utf-8'), 'this is file A\n')
         q = self.root / 'abc'
         self.ground.create_file(q, b'\xe4bcdefg')
         self.assertEqual(q.read_text(encoding='latin-1'), 'äbcdefg')
@@ -81,11 +81,11 @@ class ReadTestBase:
         p = self.root / 'abc'
         self.ground.create_file(p, b'abcde\r\nfghlk\n\rmnopq')
         # Check that `\n` character change nothing
-        self.assertEqual(p.read_text(newline='\n'), 'abcde\r\nfghlk\n\rmnopq')
+        self.assertEqual(p.read_text(encoding='utf-8', newline='\n'), 'abcde\r\nfghlk\n\rmnopq')
         # Check that `\r` character replaces `\n`
-        self.assertEqual(p.read_text(newline='\r'), 'abcde\r\nfghlk\n\rmnopq')
+        self.assertEqual(p.read_text(encoding='utf-8', newline='\r'), 'abcde\r\nfghlk\n\rmnopq')
         # Check that `\r\n` character replaces `\n`
-        self.assertEqual(p.read_text(newline='\r\n'), 'abcde\r\nfghlk\n\rmnopq')
+        self.assertEqual(p.read_text(encoding='utf-8', newline='\r\n'), 'abcde\r\nfghlk\n\rmnopq')
 
     def test_iterdir(self):
         expected = ['dirA', 'dirB', 'dirC', 'fileA']