Hi,

On 2022-02-25 09:56:47 -0800, Andres Freund wrote:
> On 2022-02-24 08:46:23 -0800, Andres Freund wrote:
> > I'm mildly inclined to only do 0001 and 0002 for now. We'd not loose msvc
> > coverage, because it already doesn't build the test. Once we've ironed that
> > stuff out, we could do 0003?
> 
> From what I can see in the buildfarm client, we'd not loose (nor gain) any
> buildfarm coverage either. It doesn't run the test today.

Attached are rebased patches. I polished 0001, the regress.pl -> 001_uri.pl
conversion some more (although some of perltidy's changes aren't clearly an
improvement).

I'd like to commit 0001 and 0002 soon, unless somebody sees a reason not to?

Greetings,

Andres Freund
>From 87017e4b0a78c486eca24aab96f32e1168c82b93 Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Wed, 23 Feb 2022 12:22:56 -0800
Subject: [PATCH v3 1/3] Convert src/interfaces/libpq/test to a tap test.

The old form of the test needed a bunch of custom infrastructure. These days
tap tests provide the necessary infrastructure to do better.

We discussed whether to move this test to src/test/modules, alongside
libpq_pipeline, but concluded that the opposite direction would be
better. libpq_pipeline will be moved at a later date, once the buildfarm and
msvc build infrastructure is ready for it.

The invocation of the tap test will be added in the next commit. It involves
just enough buildsystem changes to be worth commiting separately. Can't happen
the other way round because prove errors out when invoked without tests.

Discussion: https://postgr.es/m/20220223203031.ezrd73ohvjgfk...@alap3.anarazel.de
---
 src/interfaces/libpq/t/001_uri.pl      | 244 +++++++++++++++++++++++++
 src/interfaces/libpq/test/.gitignore   |   2 -
 src/interfaces/libpq/test/Makefile     |   7 +-
 src/interfaces/libpq/test/README       |   7 -
 src/interfaces/libpq/test/expected.out | 171 -----------------
 src/interfaces/libpq/test/regress.in   |  57 ------
 src/interfaces/libpq/test/regress.pl   |  65 -------
 7 files changed, 246 insertions(+), 307 deletions(-)
 create mode 100644 src/interfaces/libpq/t/001_uri.pl
 delete mode 100644 src/interfaces/libpq/test/README
 delete mode 100644 src/interfaces/libpq/test/expected.out
 delete mode 100644 src/interfaces/libpq/test/regress.in
 delete mode 100644 src/interfaces/libpq/test/regress.pl

diff --git a/src/interfaces/libpq/t/001_uri.pl b/src/interfaces/libpq/t/001_uri.pl
new file mode 100644
index 00000000000..90f370f8fd6
--- /dev/null
+++ b/src/interfaces/libpq/t/001_uri.pl
@@ -0,0 +1,244 @@
+# Copyright (c) 2021-2022, PostgreSQL Global Development Group
+use strict;
+use warnings;
+
+use PostgreSQL::Test::Utils;
+use Test::More;
+use IPC::Run;
+
+
+# List of URIs tests. For each test the first element is the input string, the
+# second the expected stdout and the third the expected stderr.
+my @tests = (
+	[
+		q{postgresql://uri-user:secret@host:12345/db},
+		q{user='uri-user' password='secret' dbname='db' host='host' port='12345' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://uri-user@host:12345/db},
+		q{user='uri-user' dbname='db' host='host' port='12345' (inet)}, q{},
+	],
+	[
+		q{postgresql://uri-user@host/db},
+		q{user='uri-user' dbname='db' host='host' (inet)}, q{},
+	],
+	[
+		q{postgresql://host:12345/db},
+		q{dbname='db' host='host' port='12345' (inet)}, q{},
+	],
+	[ q{postgresql://host/db}, q{dbname='db' host='host' (inet)}, q{}, ],
+	[
+		q{postgresql://uri-user@host:12345/},
+		q{user='uri-user' host='host' port='12345' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://uri-user@host/},
+		q{user='uri-user' host='host' (inet)},
+		q{},
+	],
+	[ q{postgresql://uri-user@},   q{user='uri-user' (local)},         q{}, ],
+	[ q{postgresql://host:12345/}, q{host='host' port='12345' (inet)}, q{}, ],
+	[ q{postgresql://host:12345},  q{host='host' port='12345' (inet)}, q{}, ],
+	[ q{postgresql://host/db},     q{dbname='db' host='host' (inet)},  q{}, ],
+	[ q{postgresql://host/},       q{host='host' (inet)},              q{}, ],
+	[ q{postgresql://host},        q{host='host' (inet)},              q{}, ],
+	[ q{postgresql://},            q{(local)},                         q{}, ],
+	[
+		q{postgresql://?hostaddr=127.0.0.1}, q{hostaddr='127.0.0.1' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://example.com?hostaddr=63.1.2.4},
+		q{host='example.com' hostaddr='63.1.2.4' (inet)},
+		q{},
+	],
+	[ q{postgresql://%68ost/}, q{host='host' (inet)}, q{}, ],
+	[
+		q{postgresql://host/db?user=uri-user},
+		q{user='uri-user' dbname='db' host='host' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://host/db?user=uri-user&port=12345},
+		q{user='uri-user' dbname='db' host='host' port='12345' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://host/db?u%73er=someotheruser&port=12345},
+		q{user='someotheruser' dbname='db' host='host' port='12345' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://host/db?u%7aer=someotheruser&port=12345}, q{},
+		q{uri-regress: invalid URI query parameter: "uzer"},
+	],
+	[
+		q{postgresql://host:12345?user=uri-user},
+		q{user='uri-user' host='host' port='12345' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://host?user=uri-user},
+		q{user='uri-user' host='host' (inet)},
+		q{},
+	],
+	[ q{postgresql://host?}, q{host='host' (inet)}, q{}, ],
+	[
+		q{postgresql://[::1]:12345/db},
+		q{dbname='db' host='::1' port='12345' (inet)},
+		q{},
+	],
+	[ q{postgresql://[::1]/db}, q{dbname='db' host='::1' (inet)}, q{}, ],
+	[
+		q{postgresql://[2001:db8::1234]/}, q{host='2001:db8::1234' (inet)},
+		q{},
+	],
+	[
+		q{postgresql://[200z:db8::1234]/}, q{host='200z:db8::1234' (inet)},
+		q{},
+	],
+	[ q{postgresql://[::1]}, q{host='::1' (inet)},   q{}, ],
+	[ q{postgres://},        q{(local)},             q{}, ],
+	[ q{postgres:///},       q{(local)},             q{}, ],
+	[ q{postgres:///db},     q{dbname='db' (local)}, q{}, ],
+	[
+		q{postgres://uri-user@/db}, q{user='uri-user' dbname='db' (local)},
+		q{},
+	],
+	[
+		q{postgres://?host=/path/to/socket/dir},
+		q{host='/path/to/socket/dir' (local)},
+		q{},
+	],
+	[
+		q{postgresql://host?uzer=}, q{},
+		q{uri-regress: invalid URI query parameter: "uzer"},
+	],
+	[
+		q{postgre://},
+		q{},
+		q{uri-regress: missing "=" after "postgre://" in connection info string},
+	],
+	[
+		q{postgres://[::1},
+		q{},
+		q{uri-regress: end of string reached when looking for matching "]" in IPv6 host address in URI: "postgres://[::1"},
+	],
+	[
+		q{postgres://[]},
+		q{},
+		q{uri-regress: IPv6 host address may not be empty in URI: "postgres://[]"},
+	],
+	[
+		q{postgres://[::1]z},
+		q{},
+		q{uri-regress: unexpected character "z" at position 17 in URI (expected ":" or "/"): "postgres://[::1]z"},
+	],
+	[
+		q{postgresql://host?zzz},
+		q{},
+		q{uri-regress: missing key/value separator "=" in URI query parameter: "zzz"},
+	],
+	[
+		q{postgresql://host?value1&value2},
+		q{},
+		q{uri-regress: missing key/value separator "=" in URI query parameter: "value1"},
+	],
+	[
+		q{postgresql://host?key=key=value},
+		q{},
+		q{uri-regress: extra key/value separator "=" in URI query parameter: "key"},
+	],
+	[
+		q{postgres://host?dbname=%XXfoo}, q{},
+		q{uri-regress: invalid percent-encoded token: "%XXfoo"},
+	],
+	[
+		q{postgresql://a%00b},
+		q{},
+		q{uri-regress: forbidden value %00 in percent-encoded value: "a%00b"},
+	],
+	[
+		q{postgresql://%zz}, q{},
+		q{uri-regress: invalid percent-encoded token: "%zz"},
+	],
+	[
+		q{postgresql://%1}, q{},
+		q{uri-regress: invalid percent-encoded token: "%1"},
+	],
+	[
+		q{postgresql://%}, q{},
+		q{uri-regress: invalid percent-encoded token: "%"},
+	],
+	[ q{postgres://@host},   q{host='host' (inet)},   q{}, ],
+	[ q{postgres://host:/},  q{host='host' (inet)},   q{}, ],
+	[ q{postgres://:12345/}, q{port='12345' (local)}, q{}, ],
+	[
+		q{postgres://otheruser@?host=/no/such/directory},
+		q{user='otheruser' host='/no/such/directory' (local)},
+		q{},
+	],
+	[
+		q{postgres://otheruser@/?host=/no/such/directory},
+		q{user='otheruser' host='/no/such/directory' (local)},
+		q{},
+	],
+	[
+		q{postgres://otheruser@:12345?host=/no/such/socket/path},
+		q{user='otheruser' host='/no/such/socket/path' port='12345' (local)},
+		q{},
+	],
+	[
+		q{postgres://otheruser@:12345/db?host=/path/to/socket},
+		q{user='otheruser' dbname='db' host='/path/to/socket' port='12345' (local)},
+		q{},
+	],
+	[
+		q{postgres://:12345/db?host=/path/to/socket},
+		q{dbname='db' host='/path/to/socket' port='12345' (local)},
+		q{},
+	],
+	[
+		q{postgres://:12345?host=/path/to/socket},
+		q{host='/path/to/socket' port='12345' (local)},
+		q{},
+	],
+	[
+		q{postgres://%2Fvar%2Flib%2Fpostgresql/dbname},
+		q{dbname='dbname' host='/var/lib/postgresql' (local)},
+		q{},
+	]);
+
+# test to run for each of the above test definitions
+sub test_uri
+{
+	local $Test::Builder::Level = $Test::Builder::Level + 1;
+
+	my $uri;
+	my %expect;
+	my %result;
+
+	($uri, $expect{stdout}, $expect{stderr}) = @$_;
+
+	$expect{'exit'} = $expect{stderr} eq '';
+
+	my $cmd = [ 'uri-regress', $uri ];
+	$result{exit} = IPC::Run::run $cmd, '>', \$result{stdout}, '2>',
+	  \$result{stderr};
+
+	chomp($result{stdout});
+	chomp($result{stderr});
+
+	# use is_deeply so there's one test result for each test above, without
+	# loosing the information whether stdout/stderr mismatched.
+	is_deeply(\%result, \%expect, $uri);
+}
+
+foreach (@tests)
+{
+	test_uri($_);
+}
+
+done_testing();
diff --git a/src/interfaces/libpq/test/.gitignore b/src/interfaces/libpq/test/.gitignore
index 5387b3b6d94..5e803d8816a 100644
--- a/src/interfaces/libpq/test/.gitignore
+++ b/src/interfaces/libpq/test/.gitignore
@@ -1,3 +1 @@
 /uri-regress
-/regress.diff
-/regress.out
diff --git a/src/interfaces/libpq/test/Makefile b/src/interfaces/libpq/test/Makefile
index 4832fab9d23..54212159065 100644
--- a/src/interfaces/libpq/test/Makefile
+++ b/src/interfaces/libpq/test/Makefile
@@ -1,3 +1,5 @@
+# src/interfaces/libpq/test/Makefile
+
 subdir = src/interfaces/libpq/test
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
@@ -13,10 +15,5 @@ PROGS = uri-regress
 
 all: $(PROGS)
 
-installcheck: all
-	SRCDIR='$(top_srcdir)' SUBDIR='$(subdir)' \
-		   $(PERL) $(top_srcdir)/$(subdir)/regress.pl
-
 clean distclean maintainer-clean:
 	rm -f $(PROGS) *.o
-	rm -f regress.out regress.diff
diff --git a/src/interfaces/libpq/test/README b/src/interfaces/libpq/test/README
deleted file mode 100644
index a05eb6bb3bc..00000000000
--- a/src/interfaces/libpq/test/README
+++ /dev/null
@@ -1,7 +0,0 @@
-This is a testsuite for testing libpq URI connection string syntax.
-
-To run the suite, use 'make installcheck' command.  It works by
-running 'regress.pl' from this directory with appropriate environment
-set up, which in turn feeds up lines from 'regress.in' to
-'uri-regress' test program and compares the output against the correct
-one in 'expected.out' file.
diff --git a/src/interfaces/libpq/test/expected.out b/src/interfaces/libpq/test/expected.out
deleted file mode 100644
index d375e82b4ac..00000000000
--- a/src/interfaces/libpq/test/expected.out
+++ /dev/null
@@ -1,171 +0,0 @@
-trying postgresql://uri-user:secret@host:12345/db
-user='uri-user' password='secret' dbname='db' host='host' port='12345' (inet)
-
-trying postgresql://uri-user@host:12345/db
-user='uri-user' dbname='db' host='host' port='12345' (inet)
-
-trying postgresql://uri-user@host/db
-user='uri-user' dbname='db' host='host' (inet)
-
-trying postgresql://host:12345/db
-dbname='db' host='host' port='12345' (inet)
-
-trying postgresql://host/db
-dbname='db' host='host' (inet)
-
-trying postgresql://uri-user@host:12345/
-user='uri-user' host='host' port='12345' (inet)
-
-trying postgresql://uri-user@host/
-user='uri-user' host='host' (inet)
-
-trying postgresql://uri-user@
-user='uri-user' (local)
-
-trying postgresql://host:12345/
-host='host' port='12345' (inet)
-
-trying postgresql://host:12345
-host='host' port='12345' (inet)
-
-trying postgresql://host/db
-dbname='db' host='host' (inet)
-
-trying postgresql://host/
-host='host' (inet)
-
-trying postgresql://host
-host='host' (inet)
-
-trying postgresql://
-(local)
-
-trying postgresql://?hostaddr=127.0.0.1
-hostaddr='127.0.0.1' (inet)
-
-trying postgresql://example.com?hostaddr=63.1.2.4
-host='example.com' hostaddr='63.1.2.4' (inet)
-
-trying postgresql://%68ost/
-host='host' (inet)
-
-trying postgresql://host/db?user=uri-user
-user='uri-user' dbname='db' host='host' (inet)
-
-trying postgresql://host/db?user=uri-user&port=12345
-user='uri-user' dbname='db' host='host' port='12345' (inet)
-
-trying postgresql://host/db?u%73er=someotheruser&port=12345
-user='someotheruser' dbname='db' host='host' port='12345' (inet)
-
-trying postgresql://host/db?u%7aer=someotheruser&port=12345
-uri-regress: invalid URI query parameter: "uzer"
-
-trying postgresql://host:12345?user=uri-user
-user='uri-user' host='host' port='12345' (inet)
-
-trying postgresql://host?user=uri-user
-user='uri-user' host='host' (inet)
-
-trying postgresql://host?
-host='host' (inet)
-
-trying postgresql://[::1]:12345/db
-dbname='db' host='::1' port='12345' (inet)
-
-trying postgresql://[::1]/db
-dbname='db' host='::1' (inet)
-
-trying postgresql://[2001:db8::1234]/
-host='2001:db8::1234' (inet)
-
-trying postgresql://[200z:db8::1234]/
-host='200z:db8::1234' (inet)
-
-trying postgresql://[::1]
-host='::1' (inet)
-
-trying postgres://
-(local)
-
-trying postgres:///
-(local)
-
-trying postgres:///db
-dbname='db' (local)
-
-trying postgres://uri-user@/db
-user='uri-user' dbname='db' (local)
-
-trying postgres://?host=/path/to/socket/dir
-host='/path/to/socket/dir' (local)
-
-trying postgresql://host?uzer=
-uri-regress: invalid URI query parameter: "uzer"
-
-trying postgre://
-uri-regress: missing "=" after "postgre://" in connection info string
-
-trying postgres://[::1
-uri-regress: end of string reached when looking for matching "]" in IPv6 host address in URI: "postgres://[::1"
-
-trying postgres://[]
-uri-regress: IPv6 host address may not be empty in URI: "postgres://[]"
-
-trying postgres://[::1]z
-uri-regress: unexpected character "z" at position 17 in URI (expected ":" or "/"): "postgres://[::1]z"
-
-trying postgresql://host?zzz
-uri-regress: missing key/value separator "=" in URI query parameter: "zzz"
-
-trying postgresql://host?value1&value2
-uri-regress: missing key/value separator "=" in URI query parameter: "value1"
-
-trying postgresql://host?key=key=value
-uri-regress: extra key/value separator "=" in URI query parameter: "key"
-
-trying postgres://host?dbname=%XXfoo
-uri-regress: invalid percent-encoded token: "%XXfoo"
-
-trying postgresql://a%00b
-uri-regress: forbidden value %00 in percent-encoded value: "a%00b"
-
-trying postgresql://%zz
-uri-regress: invalid percent-encoded token: "%zz"
-
-trying postgresql://%1
-uri-regress: invalid percent-encoded token: "%1"
-
-trying postgresql://%
-uri-regress: invalid percent-encoded token: "%"
-
-trying postgres://@host
-host='host' (inet)
-
-trying postgres://host:/
-host='host' (inet)
-
-trying postgres://:12345/
-port='12345' (local)
-
-trying postgres://otheruser@?host=/no/such/directory
-user='otheruser' host='/no/such/directory' (local)
-
-trying postgres://otheruser@/?host=/no/such/directory
-user='otheruser' host='/no/such/directory' (local)
-
-trying postgres://otheruser@:12345?host=/no/such/socket/path
-user='otheruser' host='/no/such/socket/path' port='12345' (local)
-
-trying postgres://otheruser@:12345/db?host=/path/to/socket
-user='otheruser' dbname='db' host='/path/to/socket' port='12345' (local)
-
-trying postgres://:12345/db?host=/path/to/socket
-dbname='db' host='/path/to/socket' port='12345' (local)
-
-trying postgres://:12345?host=/path/to/socket
-host='/path/to/socket' port='12345' (local)
-
-trying postgres://%2Fvar%2Flib%2Fpostgresql/dbname
-dbname='dbname' host='/var/lib/postgresql' (local)
-
diff --git a/src/interfaces/libpq/test/regress.in b/src/interfaces/libpq/test/regress.in
deleted file mode 100644
index de034f39141..00000000000
--- a/src/interfaces/libpq/test/regress.in
+++ /dev/null
@@ -1,57 +0,0 @@
-postgresql://uri-user:secret@host:12345/db
-postgresql://uri-user@host:12345/db
-postgresql://uri-user@host/db
-postgresql://host:12345/db
-postgresql://host/db
-postgresql://uri-user@host:12345/
-postgresql://uri-user@host/
-postgresql://uri-user@
-postgresql://host:12345/
-postgresql://host:12345
-postgresql://host/db
-postgresql://host/
-postgresql://host
-postgresql://
-postgresql://?hostaddr=127.0.0.1
-postgresql://example.com?hostaddr=63.1.2.4
-postgresql://%68ost/
-postgresql://host/db?user=uri-user
-postgresql://host/db?user=uri-user&port=12345
-postgresql://host/db?u%73er=someotheruser&port=12345
-postgresql://host/db?u%7aer=someotheruser&port=12345
-postgresql://host:12345?user=uri-user
-postgresql://host?user=uri-user
-postgresql://host?
-postgresql://[::1]:12345/db
-postgresql://[::1]/db
-postgresql://[2001:db8::1234]/
-postgresql://[200z:db8::1234]/
-postgresql://[::1]
-postgres://
-postgres:///
-postgres:///db
-postgres://uri-user@/db
-postgres://?host=/path/to/socket/dir
-postgresql://host?uzer=
-postgre://
-postgres://[::1
-postgres://[]
-postgres://[::1]z
-postgresql://host?zzz
-postgresql://host?value1&value2
-postgresql://host?key=key=value
-postgres://host?dbname=%XXfoo
-postgresql://a%00b
-postgresql://%zz
-postgresql://%1
-postgresql://%
-postgres://@host
-postgres://host:/
-postgres://:12345/
-postgres://otheruser@?host=/no/such/directory
-postgres://otheruser@/?host=/no/such/directory
-postgres://otheruser@:12345?host=/no/such/socket/path
-postgres://otheruser@:12345/db?host=/path/to/socket
-postgres://:12345/db?host=/path/to/socket
-postgres://:12345?host=/path/to/socket
-postgres://%2Fvar%2Flib%2Fpostgresql/dbname
diff --git a/src/interfaces/libpq/test/regress.pl b/src/interfaces/libpq/test/regress.pl
deleted file mode 100644
index 70691dabe68..00000000000
--- a/src/interfaces/libpq/test/regress.pl
+++ /dev/null
@@ -1,65 +0,0 @@
-#!/usr/bin/perl
-
-# Copyright (c) 2021-2022, PostgreSQL Global Development Group
-
-use strict;
-use warnings;
-
-# use of SRCDIR/SUBDIR is required for supporting VPath builds
-my $srcdir = $ENV{'SRCDIR'} or die 'SRCDIR environment variable is not set';
-my $subdir = $ENV{'SUBDIR'} or die 'SUBDIR environment variable is not set';
-
-my $regress_in   = "$srcdir/$subdir/regress.in";
-my $expected_out = "$srcdir/$subdir/expected.out";
-
-# the output file should land in the build_dir of VPath, or just in
-# the current dir, if VPath isn't used
-my $regress_out = "regress.out";
-
-# open input file first, so possible error isn't sent to redirected STDERR
-open(my $regress_in_fh, "<", $regress_in)
-  or die "can't open $regress_in for reading: $!";
-
-# save STDOUT/ERR and redirect both to regress.out
-open(my $oldout_fh, ">&", \*STDOUT) or die "can't dup STDOUT: $!";
-open(my $olderr_fh, ">&", \*STDERR) or die "can't dup STDERR: $!";
-
-open(STDOUT, ">", $regress_out)
-  or die "can't open $regress_out for writing: $!";
-open(STDERR, ">&", \*STDOUT) or die "can't dup STDOUT: $!";
-
-# read lines from regress.in and run uri-regress on them
-while (<$regress_in_fh>)
-{
-	chomp;
-	print "trying $_\n";
-	system("./uri-regress \"$_\"");
-	print "\n";
-}
-
-# restore STDOUT/ERR so we can print the outcome to the user
-open(STDERR, ">&", $olderr_fh)
-  or die;    # can't complain as STDERR is still duped
-open(STDOUT, ">&", $oldout_fh) or die "can't restore STDOUT: $!";
-
-# just in case
-close $regress_in_fh;
-
-my $diff_status = system(
-	"diff -c \"$srcdir/$subdir/expected.out\" regress.out >regress.diff");
-
-print "=" x 70, "\n";
-if ($diff_status == 0)
-{
-	print "All tests passed\n";
-	exit 0;
-}
-else
-{
-	print <<EOF;
-FAILED: the test result differs from the expected output
-
-Review the difference in "$subdir/regress.diff"
-EOF
-	exit 1;
-}
-- 
2.34.0

>From a62ec39bbe9dd8179c03cee311dc3c8e3f5a072d Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Thu, 24 Feb 2022 08:20:06 -0800
Subject: [PATCH v3 2/3] Run tap tests in src/interfaces/libpq.

To be able to run binaries in the test/ directory, prove_[install]check need
to be executable in a single shell invocation, so that test/ can be added to
PATH.

Discussion: https://postgr.es/m/20220223203031.ezrd73ohvjgfk...@alap3.anarazel.de
---
 src/interfaces/libpq/.gitignore |  1 +
 src/interfaces/libpq/Makefile   | 13 ++++++++++---
 src/Makefile.global.in          | 12 ++++++------
 3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/interfaces/libpq/.gitignore b/src/interfaces/libpq/.gitignore
index 7478dc344ac..829d683ed27 100644
--- a/src/interfaces/libpq/.gitignore
+++ b/src/interfaces/libpq/.gitignore
@@ -1,2 +1,3 @@
 /exports.list
 /libpq-refs-stamp
+/tmp_check/
diff --git a/src/interfaces/libpq/Makefile b/src/interfaces/libpq/Makefile
index 844c95d47de..1061547980f 100644
--- a/src/interfaces/libpq/Makefile
+++ b/src/interfaces/libpq/Makefile
@@ -137,8 +137,14 @@ install: all installdirs install-lib
 	$(INSTALL_DATA) $(srcdir)/pqexpbuffer.h '$(DESTDIR)$(includedir_internal)'
 	$(INSTALL_DATA) $(srcdir)/pg_service.conf.sample '$(DESTDIR)$(datadir)/pg_service.conf.sample'
 
-installcheck:
-	$(MAKE) -C test $@
+test-build:
+	$(MAKE) -C test all
+
+check: test-build all
+	PATH="$(CURDIR)/test:$$PATH" && $(prove_check)
+
+installcheck: test-build all
+	PATH="$(CURDIR)/test:$$PATH" && $(prove_installcheck)
 
 installdirs: installdirs-lib
 	$(MKDIR_P) '$(DESTDIR)$(includedir)' '$(DESTDIR)$(includedir_internal)' '$(DESTDIR)$(datadir)'
@@ -151,8 +157,9 @@ uninstall: uninstall-lib
 	rm -f '$(DESTDIR)$(includedir_internal)/pqexpbuffer.h'
 	rm -f '$(DESTDIR)$(datadir)/pg_service.conf.sample'
 
-clean distclean: clean-lib
+clean distclean: clean-lib test-clean
 	$(MAKE) -C test $@
+	rm -rf tmp_check
 	rm -f $(OBJS) pthread.h libpq-refs-stamp
 # Might be left over from a Win32 client-only build
 	rm -f pg_config_paths.h
diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index c980444233f..bbdc1c4bda6 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -448,8 +448,8 @@ ifeq ($(enable_tap_tests),yes)
 
 ifndef PGXS
 define prove_installcheck
-rm -rf '$(CURDIR)'/tmp_check
-$(MKDIR_P) '$(CURDIR)'/tmp_check
+rm -rf '$(CURDIR)'/tmp_check && \
+$(MKDIR_P) '$(CURDIR)'/tmp_check && \
 cd $(srcdir) && \
    TESTDIR='$(CURDIR)' PATH="$(bindir):$(CURDIR):$$PATH" \
    PGPORT='6$(DEF_PGPORT)' top_builddir='$(CURDIR)/$(top_builddir)' \
@@ -458,8 +458,8 @@ cd $(srcdir) && \
 endef
 else # PGXS case
 define prove_installcheck
-rm -rf '$(CURDIR)'/tmp_check
-$(MKDIR_P) '$(CURDIR)'/tmp_check
+rm -rf '$(CURDIR)'/tmp_check && \
+$(MKDIR_P) '$(CURDIR)'/tmp_check && \
 cd $(srcdir) && \
    TESTDIR='$(CURDIR)' PATH="$(bindir):$(CURDIR):$$PATH" \
    PGPORT='6$(DEF_PGPORT)' top_builddir='$(top_builddir)' \
@@ -469,8 +469,8 @@ endef
 endif # PGXS
 
 define prove_check
-rm -rf '$(CURDIR)'/tmp_check
-$(MKDIR_P) '$(CURDIR)'/tmp_check
+rm -rf '$(CURDIR)'/tmp_check && \
+$(MKDIR_P) '$(CURDIR)'/tmp_check && \
 cd $(srcdir) && \
    TESTDIR='$(CURDIR)' $(with_temp_install) PGPORT='6$(DEF_PGPORT)' \
    PG_REGRESS='$(CURDIR)/$(top_builddir)/src/test/regress/pg_regress' \
-- 
2.34.0

>From c603f34456d9feefd8d6ce52855d09744754fd2f Mon Sep 17 00:00:00 2001
From: Andres Freund <and...@anarazel.de>
Date: Thu, 24 Feb 2022 08:27:41 -0800
Subject: [PATCH v3 3/3] Move libpq_pipeline test into src/interfaces/libpq.

---
 .../libpq/t/002_pipeline.pl}                  |  2 +-
 src/interfaces/libpq/test/.gitignore          |  1 +
 src/interfaces/libpq/test/Makefile            |  2 +-
 .../libpq/test}/libpq_pipeline.c              |  0
 .../test}/traces/disallowed_in_pipeline.trace |  0
 .../libpq/test}/traces/multi_pipelines.trace  |  0
 .../libpq/test}/traces/nosync.trace           |  0
 .../libpq/test}/traces/pipeline_abort.trace   |  0
 .../libpq/test}/traces/prepared.trace         |  0
 .../libpq/test}/traces/simple_pipeline.trace  |  0
 .../libpq/test}/traces/singlerow.trace        |  0
 .../libpq/test}/traces/transaction.trace      |  0
 src/test/modules/libpq_pipeline/.gitignore    |  5 ----
 src/test/modules/libpq_pipeline/Makefile      | 25 -------------------
 src/test/modules/libpq_pipeline/README        |  1 -
 15 files changed, 3 insertions(+), 33 deletions(-)
 rename src/{test/modules/libpq_pipeline/t/001_libpq_pipeline.pl => interfaces/libpq/t/002_pipeline.pl} (96%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/libpq_pipeline.c (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/disallowed_in_pipeline.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/multi_pipelines.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/nosync.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/pipeline_abort.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/prepared.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/simple_pipeline.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/singlerow.trace (100%)
 rename src/{test/modules/libpq_pipeline => interfaces/libpq/test}/traces/transaction.trace (100%)
 delete mode 100644 src/test/modules/libpq_pipeline/.gitignore
 delete mode 100644 src/test/modules/libpq_pipeline/Makefile
 delete mode 100644 src/test/modules/libpq_pipeline/README

diff --git a/src/test/modules/libpq_pipeline/t/001_libpq_pipeline.pl b/src/interfaces/libpq/t/002_pipeline.pl
similarity index 96%
rename from src/test/modules/libpq_pipeline/t/001_libpq_pipeline.pl
rename to src/interfaces/libpq/t/002_pipeline.pl
index 0c164dcaba5..2e288d8ba7c 100644
--- a/src/test/modules/libpq_pipeline/t/001_libpq_pipeline.pl
+++ b/src/interfaces/libpq/t/002_pipeline.pl
@@ -49,7 +49,7 @@ for my $testname (@tests)
 		my $expected;
 		my $result;
 
-		$expected = slurp_file_eval("traces/$testname.trace");
+		$expected = slurp_file_eval("test/traces/$testname.trace");
 		next unless $expected ne "";
 		$result = slurp_file_eval($traceout);
 		next unless $result ne "";
diff --git a/src/interfaces/libpq/test/.gitignore b/src/interfaces/libpq/test/.gitignore
index 5e803d8816a..e24d7f64dc3 100644
--- a/src/interfaces/libpq/test/.gitignore
+++ b/src/interfaces/libpq/test/.gitignore
@@ -1 +1,2 @@
 /uri-regress
+/libpq_pipeline
diff --git a/src/interfaces/libpq/test/Makefile b/src/interfaces/libpq/test/Makefile
index 54212159065..9f99309653f 100644
--- a/src/interfaces/libpq/test/Makefile
+++ b/src/interfaces/libpq/test/Makefile
@@ -11,7 +11,7 @@ endif
 override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS)
 LDFLAGS_INTERNAL += $(libpq_pgport)
 
-PROGS = uri-regress
+PROGS = uri-regress libpq_pipeline
 
 all: $(PROGS)
 
diff --git a/src/test/modules/libpq_pipeline/libpq_pipeline.c b/src/interfaces/libpq/test/libpq_pipeline.c
similarity index 100%
rename from src/test/modules/libpq_pipeline/libpq_pipeline.c
rename to src/interfaces/libpq/test/libpq_pipeline.c
diff --git a/src/test/modules/libpq_pipeline/traces/disallowed_in_pipeline.trace b/src/interfaces/libpq/test/traces/disallowed_in_pipeline.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/disallowed_in_pipeline.trace
rename to src/interfaces/libpq/test/traces/disallowed_in_pipeline.trace
diff --git a/src/test/modules/libpq_pipeline/traces/multi_pipelines.trace b/src/interfaces/libpq/test/traces/multi_pipelines.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/multi_pipelines.trace
rename to src/interfaces/libpq/test/traces/multi_pipelines.trace
diff --git a/src/test/modules/libpq_pipeline/traces/nosync.trace b/src/interfaces/libpq/test/traces/nosync.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/nosync.trace
rename to src/interfaces/libpq/test/traces/nosync.trace
diff --git a/src/test/modules/libpq_pipeline/traces/pipeline_abort.trace b/src/interfaces/libpq/test/traces/pipeline_abort.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/pipeline_abort.trace
rename to src/interfaces/libpq/test/traces/pipeline_abort.trace
diff --git a/src/test/modules/libpq_pipeline/traces/prepared.trace b/src/interfaces/libpq/test/traces/prepared.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/prepared.trace
rename to src/interfaces/libpq/test/traces/prepared.trace
diff --git a/src/test/modules/libpq_pipeline/traces/simple_pipeline.trace b/src/interfaces/libpq/test/traces/simple_pipeline.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/simple_pipeline.trace
rename to src/interfaces/libpq/test/traces/simple_pipeline.trace
diff --git a/src/test/modules/libpq_pipeline/traces/singlerow.trace b/src/interfaces/libpq/test/traces/singlerow.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/singlerow.trace
rename to src/interfaces/libpq/test/traces/singlerow.trace
diff --git a/src/test/modules/libpq_pipeline/traces/transaction.trace b/src/interfaces/libpq/test/traces/transaction.trace
similarity index 100%
rename from src/test/modules/libpq_pipeline/traces/transaction.trace
rename to src/interfaces/libpq/test/traces/transaction.trace
diff --git a/src/test/modules/libpq_pipeline/.gitignore b/src/test/modules/libpq_pipeline/.gitignore
deleted file mode 100644
index 3a11e786b83..00000000000
--- a/src/test/modules/libpq_pipeline/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-# Generated subdirectories
-/log/
-/results/
-/tmp_check/
-/libpq_pipeline
diff --git a/src/test/modules/libpq_pipeline/Makefile b/src/test/modules/libpq_pipeline/Makefile
deleted file mode 100644
index 65acc3e997e..00000000000
--- a/src/test/modules/libpq_pipeline/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-# src/test/modules/libpq_pipeline/Makefile
-
-PGFILEDESC = "libpq_pipeline - test program for pipeline execution"
-PGAPPICON = win32
-
-PROGRAM = libpq_pipeline
-OBJS = $(WIN32RES) libpq_pipeline.o
-
-NO_INSTALL = 1
-
-PG_CPPFLAGS = -I$(libpq_srcdir)
-PG_LIBS_INTERNAL += $(libpq_pgport)
-
-TAP_TESTS = 1
-
-ifdef USE_PGXS
-PG_CONFIG = pg_config
-PGXS := $(shell $(PG_CONFIG) --pgxs)
-include $(PGXS)
-else
-subdir = src/test/modules/libpq_pipeline
-top_builddir = ../../../..
-include $(top_builddir)/src/Makefile.global
-include $(top_srcdir)/contrib/contrib-global.mk
-endif
diff --git a/src/test/modules/libpq_pipeline/README b/src/test/modules/libpq_pipeline/README
deleted file mode 100644
index d8174dd579a..00000000000
--- a/src/test/modules/libpq_pipeline/README
+++ /dev/null
@@ -1 +0,0 @@
-Test programs and libraries for libpq
-- 
2.34.0

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