mirror of
https://github.com/SerenityOS/serenity.git
synced 2026-11-07 12:38:38 -10:00
Gwen W
5abb6384a0
Adds command line flags to `sed` to require strict POSIX behavior. Extended regexes are still used by default but an ignored -E flag is added for compatibility with other sed versions.
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/*
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* Copyright (c) 2023, Rodrigo Tobar <[email protected]>.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ScopeGuard.h>
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#include <AK/StringView.h>
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#include <LibCore/Command.h>
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#include <LibCore/File.h>
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#include <LibTest/Macros.h>
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#include <LibTest/TestCase.h>
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static void run_sed(Vector<char const*>&& arguments, StringView standard_input, StringView expected_stdout)
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{
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MUST(arguments.try_insert(0, "sed"));
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MUST(arguments.try_append(nullptr));
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auto sed = MUST(Core::Command::create("sed"sv, arguments.data()));
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MUST(sed->write(standard_input));
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auto [stdout, stderr] = MUST(sed->read_all());
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auto status = MUST(sed->status());
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if (status != Core::Command::ProcessResult::DoneWithZeroExitCode) {
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FAIL(ByteString::formatted("sed didn't exit cleanly: status: {}, stdout:{}, stderr: {}", static_cast<int>(status), StringView { stdout.bytes() }, StringView { stderr.bytes() }));
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}
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EXPECT_EQ(StringView { expected_stdout.bytes() }, StringView { stdout.bytes() });
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}
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TEST_CASE(transform_command)
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{
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run_sed({ "y/fb/FB/" }, "foobar\n"sv, "FooBar\n"sv);
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run_sed({ "y;fb;FB;" }, "foobar\n"sv, "FooBar\n"sv);
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run_sed({ "y///" }, "foobar\n"sv, "foobar\n"sv);
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run_sed({ "y/abcdefghijklmnopqrstuvwxyz/defghijklmnopqrstuvwxyzabc/" }, "attack at dawn\n"sv, "dwwdfn dw gdzq\n"sv);
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}
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TEST_CASE(comments)
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{
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run_sed({ "# This is a comment! " }, "foo\nbar\nbaz\n"sv, "foo\nbar\nbaz\n"sv);
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run_sed({ "# This is a comment!\np" }, "foo\nbar\nbaz\n"sv, "foo\nfoo\nbar\nbar\nbaz\nbaz\n"sv);
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}
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TEST_CASE(quit_after_single_line)
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{
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run_sed({ "q" }, "foo\n"sv, "foo\n"sv);
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run_sed({ "1q" }, "foo\n"sv, "foo\n"sv);
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}
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TEST_CASE(delete_single_line)
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{
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run_sed({ "1d" }, "1\n2\n"sv, "2\n"sv);
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}
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TEST_CASE(print_lineno)
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{
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run_sed({ "=", "-n" }, "hi"sv, "1\n"sv);
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run_sed({ "=", "-n" }, "hi\n"sv, "1\n"sv);
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run_sed({ "=", "-n" }, "hi\nho"sv, "1\n2\n"sv);
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run_sed({ "=", "-n" }, "hi\nho\n"sv, "1\n2\n"sv);
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}
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TEST_CASE(s)
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{
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run_sed({ "s/a/b/g" }, "aa\n"sv, "bb\n"sv);
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run_sed({ "s/././g" }, "aa\n"sv, "..\n"sv);
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run_sed({ "s/a/b/p" }, "a\n"sv, "b\nb\n"sv);
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run_sed({ "s/a/b/p", "-n" }, "a\n"sv, "b\n"sv);
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run_sed({ "1s/a/b/" }, "a\na"sv, "b\na\n"sv);
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run_sed({ "1s/a/b/p", "-n" }, "a\na"sv, "b\n"sv);
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}
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TEST_CASE(hold_space)
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{
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run_sed({ "1h; 2x; 2p", "-n" }, "hi\nbye"sv, "hi\n"sv);
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}
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TEST_CASE(complex)
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{
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run_sed({ "h; x; s/./*/gp; x; h; p; x; s/./*/gp", "-n" }, "hello serenity"sv, "**************\nhello serenity\n**************\n"sv);
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}
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TEST_CASE(strict_posix)
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{
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run_sed({ "--posix", "s/(.)/b/" }, "foo\n"sv, "foo\n"sv);
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run_sed({ "--posix", "s/\\(.\\)/b/" }, "foo\n"sv, "boo\n"sv);
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run_sed({ "--posix", "s/\\(.\\)\\(.*\\)/\\1\\2\\1/" }, "foo\n"sv, "foof\n"sv);
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}
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