commit 209b41aad5fa2c49ea437ec1528028b741eea487
Author: Nitin Motiani <nitinmotiani@google.com>
Date:   Sat Feb 15 04:29:17 2025 +0000

    Add basic tests for pipe-command
    
    * This currently only adds a few basic tests for pg_dump with --pipe-command.
    * These tests include the invalid usages of --pipe-command with other flags.
    * We are still working on adding other tests in pg_dump.pl. But
      we ran into some issues which might be related to setup.

diff --git a/src/bin/pg_dump/t/001_basic.pl b/src/bin/pg_dump/t/001_basic.pl
index 84ca25e17d6..3badd335f8c 100644
--- a/src/bin/pg_dump/t/001_basic.pl
+++ b/src/bin/pg_dump/t/001_basic.pl
@@ -74,6 +74,42 @@ command_fails_like(
 	'pg_dump: options --statistics-only and --no-statistics cannot be used together'
 );
 
+command_fails_like(
+	[ 'pg_dump', '-Fd', '--pipe-command="cat"', '-f', 'testdir', 'test'],
+	qr/\Qpg_dump: hint: Only one of [--file, --pipe-command] allowed\E/,
+	'pg_dump: hint: Only one of [--file, --pipe-command] allowed'
+);
+
+command_fails_like(
+	[ 'pg_dump', '-Fd', '--pipe-command="cat"', '-Z', 'gzip', 'test'],
+	qr/\Qpg_dump: hint: Option --pipe-command is not supported with any compression type\E/,
+	'pg_dump: hint: Option --pipe-command is not supported with any compression type'
+);
+
+command_fails_like(
+	[ 'pg_dump', '-Fd', '--pipe-command="cat"', '--compress=lz4', 'test'],
+	qr/\Qpg_dump: hint: Option --pipe-command is not supported with any compression type\E/,
+	'pg_dump: hint: Option --pipe-command is not supported with any compression type'
+);
+
+command_fails_like(
+	[ 'pg_dump', '-Fd', '--pipe-command="cat"', '-Z', '1', 'test'],
+	qr/\Qpg_dump: hint: Option --pipe-command is not supported with any compression type\E/,
+	'pg_dump: hint: Option --pipe-command is not supported with any compression type'
+);
+
+command_fails_like(
+	[ 'pg_dump', '-Fc', '--pipe-command="cat"', 'test'],
+	qr/\Qpg_dump: hint: Option --pipe-command is only supported with directory format.\E/,
+	'pg_dump: hint: Option --pipe-command is only supported with directory format.'
+);
+
+command_fails_like(
+	[ 'pg_dump', '--format=tar', '--pipe-command="cat"', 'test'],
+	qr/\Qpg_dump: hint: Option --pipe-command is only supported with directory format.\E/,
+	'pg_dump: hint: Option --pipe-command is only supported with directory format.'
+);
+
 command_fails_like(
 	[ 'pg_dump', '-j2', '--include-foreign-data=xxx' ],
 	qr/\Qpg_dump: error: option --include-foreign-data is not supported with parallel backup\E/,