Extend ``unspecified-encoding`` checker

The ``unspecified-encoding`` checker now also checks calls to ``pathlib.Path().read_text()``
and ``pathlib.Path().write_text()``
This closes #4945

2 files changed, 40 insertions, 15 deletions

diff --git a/tests/functional/u/unspecified_encoding_py38.py b/tests/functional/u/unspecified_encoding_py38.py
index 20d2d7be1..1b3ae3795 100644
--- a/tests/functional/u/unspecified_encoding_py38.py
+++ b/tests/functional/u/unspecified_encoding_py38.py
@@ -2,6 +2,7 @@
 # pylint: disable=consider-using-with
 import io
 import locale
+from pathlib import Path
 
 FILENAME = "foo.bar"
 open(FILENAME, "w", encoding="utf-8")
@@ -53,3 +54,21 @@ with io.open(FILENAME, encoding=None) as f:  # [unspecified-encoding]
 LOCALE_ENCODING = None
 with io.open(FILENAME, encoding=LOCALE_ENCODING) as f:  # [unspecified-encoding]
     pass
+
+LOCALE_ENCODING = locale.getlocale()[1]
+Path(FILENAME).read_text(encoding=LOCALE_ENCODING)
+Path(FILENAME).read_text(encoding="utf8")
+
+LOCALE_ENCODING = None
+Path(FILENAME).read_text()  # [unspecified-encoding]
+Path(FILENAME).read_text(encoding=None)  # [unspecified-encoding]
+Path(FILENAME).read_text(encoding=LOCALE_ENCODING)  # [unspecified-encoding]
+
+LOCALE_ENCODING = locale.getlocale()[1]
+Path(FILENAME).write_text("string", encoding=LOCALE_ENCODING)
+Path(FILENAME).write_text("string", encoding="utf8")
+
+LOCALE_ENCODING = None
+Path(FILENAME).write_text("string")  # [unspecified-encoding]
+Path(FILENAME).write_text("string", encoding=None)  # [unspecified-encoding]
+Path(FILENAME).write_text("string", encoding=LOCALE_ENCODING)  # [unspecified-encoding]
diff --git a/tests/functional/u/unspecified_encoding_py38.txt b/tests/functional/u/unspecified_encoding_py38.txt
index cde7f2238..45bf15f5a 100644
--- a/tests/functional/u/unspecified_encoding_py38.txt
+++ b/tests/functional/u/unspecified_encoding_py38.txt
@@ -1,15 +1,21 @@
-unspecified-encoding:10:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:11:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:12:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:13:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:14:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:23:5::"Using open without explicitly specifying an encoding"
-unspecified-encoding:26:5::"Using open without explicitly specifying an encoding"
-unspecified-encoding:30:5::"Using open without explicitly specifying an encoding"
-unspecified-encoding:35:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:36:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:37:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:38:0::"Using open without explicitly specifying an encoding"
-unspecified-encoding:47:5::"Using open without explicitly specifying an encoding"
-unspecified-encoding:50:5::"Using open without explicitly specifying an encoding"
-unspecified-encoding:54:5::"Using open without explicitly specifying an encoding"
+unspecified-encoding:11:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:12:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:13:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:14:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:15:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:24:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:27:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:31:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:36:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:37:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:38:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:39:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:48:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:51:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:55:5::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:63:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:64:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:65:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:72:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:73:0::Using open without explicitly specifying an encoding:HIGH
+unspecified-encoding:74:0::Using open without explicitly specifying an encoding:HIGH