Converted lint-tests.sh to python

Use raw string

Use re.search instead of grep in check_matching_test_names

Replaced bash commands in check_unique_test_names with python commands

Use set and sort output

Use set comprehension

Use .splitlines()

Call grep_boost_fixture_test_suite once

splitlines() once

Fixed copyright date

Use check_output() instead of run()

add encoding='utf8'

Use clearer code for getting duplicates

Author: KevinMusgrave

test/lint/lint-tests.py

@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+#
+# Copyright (c) 2018-2022 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+"""
+Check the test suite naming conventions
+"""
+
+import re
+import subprocess
+import sys
+
+
+def grep_boost_fixture_test_suite():
+    command = [
+        "git",
+        "grep",
+        "-E",
+        r"^BOOST_FIXTURE_TEST_SUITE\(",
+        "--",
+        "src/test/**.cpp",
+        "src/wallet/test/**.cpp",
+    ]
+    return subprocess.check_output(command, universal_newlines=True, encoding="utf8")
+
+
+def check_matching_test_names(test_suite_list):
+    not_matching = [
+        x
+        for x in test_suite_list
+        if re.search(r"/(.*?)\.cpp:BOOST_FIXTURE_TEST_SUITE\(\1, .*\)", x) is None
+    ]
+    if len(not_matching) > 0:
+        not_matching = "\n".join(not_matching)
+        error_msg = (
+            "The test suite in file src/test/foo_tests.cpp should be named\n"
+            '"foo_tests". Please make sure the following test suites follow\n'
+            "that convention:\n\n"
+            f"{not_matching}\n"
+        )
+        print(error_msg)
+        return 1
+    return 0
+
+
+def get_duplicates(input_list):
+    """
+    From https://stackoverflow.com/a/9835819
+    """
+    seen = set()
+    dupes = set()
+    for x in input_list:
+        if x in seen:
+            dupes.add(x)
+        else:
+            seen.add(x)
+    return dupes
+
+
+def check_unique_test_names(test_suite_list):
+    output = [re.search(r"\((.*?),", x) for x in test_suite_list]
+    output = [x.group(1) for x in output if x is not None]
+    output = get_duplicates(output)
+    output = sorted(list(output))
+
+    if len(output) > 0:
+        output = "\n".join(output)
+        error_msg = (
+            "Test suite names must be unique. The following test suite names\n"
+            f"appear to be used more than once:\n\n{output}"
+        )
+        print(error_msg)
+        return 1
+    return 0
+
+
+def main():
+    test_suite_list = grep_boost_fixture_test_suite().splitlines()
+    exit_code = check_matching_test_names(test_suite_list)
+    exit_code |= check_unique_test_names(test_suite_list)
+    sys.exit(exit_code)
+
+
+if __name__ == "__main__":
+    main()