meson: Prevent installation of test files during main install

Previously, meson installed modules under src/test/modules/ as part of
a normal installation, even though these files are only meant for use
by tests.  This is because there is no way to set up up the build
system to install extra things only when told.

This patch fixes that with a workaround: We don't install these
modules as part of meson install, but we create a new "test" that runs
before the real tests whose action it is to install these files.  The
installation is done by manual copies using a small helper script.

Author: Nazir Bilal Yavuz <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/2a039e8e-f31f-31e8-afe7-bab3130ad2de%40enterprisedb.com

29 files changed, 139 insertions, 151 deletions

diff --git a/meson.build b/meson.build
index 26be83afb6..87cb974ad7 100644
--- a/meson.build
+++ b/meson.build
@@ -2801,6 +2801,10 @@ backend_code = declare_dependency(
   dependencies: os_deps + backend_both_deps + backend_deps,
 )
 
+# install these files only during test, not main install
+test_install_data = []
+test_install_libs = []
+
 # src/backend/meson.build defines backend_mod_code used for extension
 # libraries.
 
@@ -2821,6 +2825,10 @@ subdir('doc/src/sgml')
 
 generated_sources_ac += {'': ['GNUmakefile']}
 
+# After processing src/test, add test_install_libs to the testprep_targets
+# to build them
+testprep_targets += test_install_libs
+
 
 # If there are any files in the source directory that we also generate in the
 # build directory, they might get preferred over the newly generated files,
@@ -2903,14 +2911,36 @@ meson_install_args = meson_args + ['install'] + {
     'muon': []
 }[meson_impl]
 
+# setup tests should  be run first,
+# so define priority for these
+setup_tests_priority = 100
 test('tmp_install',
     meson_bin, args: meson_install_args ,
     env: {'DESTDIR':test_install_destdir},
-    priority: 100,
+    priority: setup_tests_priority,
     timeout: 300,
     is_parallel: false,
     suite: ['setup'])
 
+# get full paths of test_install_libs to copy them
+test_install_libs_fp = []
+foreach lib: test_install_libs
+  test_install_libs_fp += lib.full_path()
+endforeach
+
+install_test_files = files('src/tools/install_test_files')
+test('install_test_files',
+    python, args: [
+      install_test_files,
+      '--datadir', test_install_location / contrib_data_args['install_dir'],
+      '--libdir', test_install_location / dir_lib_pkg,
+      '--install-data', test_install_data,
+      '--install-libs', test_install_libs_fp,
+    ],
+    priority: setup_tests_priority,
+    is_parallel: false,
+    suite: ['setup'])
+
 test_result_dir = meson.build_root() / 'testrun'
 
 
diff --git a/src/backend/meson.build b/src/backend/meson.build
index 4fdd209b82..ccfc382fcf 100644
--- a/src/backend/meson.build
+++ b/src/backend/meson.build
@@ -180,12 +180,19 @@ backend_mod_code = declare_dependency(
   dependencies: backend_mod_deps,
 )
 
+# normal extension modules
 pg_mod_args = default_mod_args + {
   'dependencies': [backend_mod_code],
   'cpp_args': pg_mod_cpp_args,
   'link_depends': pg_mod_link_depend,
 }
 
+# extension modules that shouldn't be installed by default, as they're only
+# for testing
+pg_test_mod_args = pg_mod_args + {
+  'install': false
+}
+
 
 
 # Shared modules that, on some system, link against the server binary. Only
diff --git a/src/test/modules/delay_execution/meson.build b/src/test/modules/delay_execution/meson.build
index a7165d7506..9f33b19cb7 100644
--- a/src/test/modules/delay_execution/meson.build
+++ b/src/test/modules/delay_execution/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 delay_execution_sources = files(
   'delay_execution.c',
 )
@@ -14,9 +12,9 @@ endif
 
 delay_execution = shared_module('delay_execution',
   delay_execution_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += delay_execution
+test_install_libs += delay_execution
 
 tests += {
   'name': 'delay_execution',
diff --git a/src/test/modules/dummy_index_am/meson.build b/src/test/modules/dummy_index_am/meson.build
index 4e02a34f18..86bbc641bc 100644
--- a/src/test/modules/dummy_index_am/meson.build
+++ b/src/test/modules/dummy_index_am/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 dummy_index_am_sources = files(
   'dummy_index_am.c',
 )
@@ -14,14 +12,13 @@ endif
 
 dummy_index_am = shared_module('dummy_index_am',
   dummy_index_am_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += dummy_index_am
+test_install_libs += dummy_index_am
 
-install_data(
+test_install_data += files(
   'dummy_index_am.control',
   'dummy_index_am--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/dummy_seclabel/meson.build b/src/test/modules/dummy_seclabel/meson.build
index 2a6a114b91..a804caf569 100644
--- a/src/test/modules/dummy_seclabel/meson.build
+++ b/src/test/modules/dummy_seclabel/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 dummy_seclabel_sources = files(
   'dummy_seclabel.c',
 )
@@ -14,14 +12,13 @@ endif
 
 dummy_seclabel = shared_module('dummy_seclabel',
   dummy_seclabel_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += dummy_seclabel
+test_install_libs += dummy_seclabel
 
-install_data(
+test_install_data += files(
   'dummy_seclabel.control',
   'dummy_seclabel--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/plsample/meson.build b/src/test/modules/plsample/meson.build
index 99acf8f658..44fa107595 100644
--- a/src/test/modules/plsample/meson.build
+++ b/src/test/modules/plsample/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 plsample_sources = files(
   'plsample.c',
 )
@@ -14,16 +12,14 @@ endif
 
 plsample = shared_module('plsample',
   plsample_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += plsample
+test_install_libs += plsample
 
-install_data(
+test_install_data += files(
   'plsample.control',
   'plsample--1.0.sql',
-  kwargs: contrib_data_args,
 )
-
 tests += {
   'name': 'plsample',
   'sd': meson.current_source_dir(),
diff --git a/src/test/modules/spgist_name_ops/meson.build b/src/test/modules/spgist_name_ops/meson.build
index 76405055c4..c8b7a6efb4 100644
--- a/src/test/modules/spgist_name_ops/meson.build
+++ b/src/test/modules/spgist_name_ops/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 spgist_name_ops_sources = files(
   'spgist_name_ops.c',
 )
@@ -14,16 +12,14 @@ endif
 
 spgist_name_ops = shared_module('spgist_name_ops',
   spgist_name_ops_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += spgist_name_ops
+test_install_libs += spgist_name_ops
 
-install_data(
+test_install_data += files(
   'spgist_name_ops.control',
   'spgist_name_ops--1.0.sql',
-  kwargs: contrib_data_args,
 )
-
 tests += {
   'name': 'spgist_name_ops',
   'sd': meson.current_source_dir(),
diff --git a/src/test/modules/ssl_passphrase_callback/meson.build b/src/test/modules/ssl_passphrase_callback/meson.build
index de016b0280..c2a022b4f1 100644
--- a/src/test/modules/ssl_passphrase_callback/meson.build
+++ b/src/test/modules/ssl_passphrase_callback/meson.build
@@ -4,8 +4,6 @@ if not ssl.found()
   subdir_done()
 endif
 
-# FIXME: prevent install during main install, but not during test :/
-
 ssl_passphrase_callback_sources = files(
   'ssl_passphrase_func.c',
 )
@@ -18,11 +16,11 @@ endif
 
 ssl_passphrase_callback = shared_module('ssl_passphrase_func',
   ssl_passphrase_callback_sources,
-  kwargs: pg_mod_args + {
+  kwargs: pg_test_mod_args + {
     'dependencies': [ssl, pg_mod_args['dependencies']],
   },
 )
-testprep_targets += ssl_passphrase_callback
+test_install_libs += ssl_passphrase_callback
 
 # Targets to generate or remove the ssl certificate and key. Need to be copied
 # to the source afterwards. Normally not needed.
diff --git a/src/test/modules/test_bloomfilter/meson.build b/src/test/modules/test_bloomfilter/meson.build
index 924966bb1e..5353958eeb 100644
--- a/src/test/modules/test_bloomfilter/meson.build
+++ b/src/test/modules/test_bloomfilter/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_bloomfilter_sources = files(
   'test_bloomfilter.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_bloomfilter = shared_module('test_bloomfilter',
   test_bloomfilter_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_bloomfilter
+test_install_libs += test_bloomfilter
 
-install_data(
+test_install_data += files(
   'test_bloomfilter.control',
   'test_bloomfilter--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_copy_callbacks/meson.build b/src/test/modules/test_copy_callbacks/meson.build
index 20b052ec86..849b58e7c4 100644
--- a/src/test/modules/test_copy_callbacks/meson.build
+++ b/src/test/modules/test_copy_callbacks/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_copy_callbacks_sources = files(
   'test_copy_callbacks.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_copy_callbacks = shared_module('test_copy_callbacks',
   test_copy_callbacks_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_copy_callbacks
+test_install_libs += test_copy_callbacks
 
-install_data(
+test_install_data += files(
   'test_copy_callbacks.control',
   'test_copy_callbacks--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_custom_rmgrs/meson.build b/src/test/modules/test_custom_rmgrs/meson.build
index 3e887af4bc..a826efe1af 100644
--- a/src/test/modules/test_custom_rmgrs/meson.build
+++ b/src/test/modules/test_custom_rmgrs/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_custom_rmgrs_sources = files(
   'test_custom_rmgrs.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_custom_rmgrs = shared_module('test_custom_rmgrs',
   test_custom_rmgrs_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_custom_rmgrs
+test_install_libs += test_custom_rmgrs
 
-install_data(
+test_install_data += files(
   'test_custom_rmgrs.control',
   'test_custom_rmgrs--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_ddl_deparse/meson.build b/src/test/modules/test_ddl_deparse/meson.build
index f23e246aca..dfd31df124 100644
--- a/src/test/modules/test_ddl_deparse/meson.build
+++ b/src/test/modules/test_ddl_deparse/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_ddl_deparse_sources = files(
   'test_ddl_deparse.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_ddl_deparse = shared_module('test_ddl_deparse',
   test_ddl_deparse_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_ddl_deparse
+test_install_libs += test_ddl_deparse
 
-install_data(
+test_install_data += files(
   'test_ddl_deparse.control',
   'test_ddl_deparse--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_extensions/meson.build b/src/test/modules/test_extensions/meson.build
index 45597ddc23..c3af3e1721 100644
--- a/src/test/modules/test_extensions/meson.build
+++ b/src/test/modules/test_extensions/meson.build
@@ -1,7 +1,6 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-install_data(
+test_install_data += files(
   'test_ext1--1.0.sql',
   'test_ext1.control',
   'test_ext2--1.0.sql',
@@ -31,7 +30,6 @@ install_data(
   'test_ext_evttrig--1.0--2.0.sql',
   'test_ext_evttrig--1.0.sql',
   'test_ext_evttrig.control',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_ginpostinglist/meson.build b/src/test/modules/test_ginpostinglist/meson.build
index 3afb7b1b7e..338296267c 100644
--- a/src/test/modules/test_ginpostinglist/meson.build
+++ b/src/test/modules/test_ginpostinglist/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_ginpostinglist_sources = files(
   'test_ginpostinglist.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_ginpostinglist = shared_module('test_ginpostinglist',
   test_ginpostinglist_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_ginpostinglist
+test_install_libs += test_ginpostinglist
 
-install_data(
+test_install_data += files(
   'test_ginpostinglist.control',
   'test_ginpostinglist--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_integerset/meson.build b/src/test/modules/test_integerset/meson.build
index 7223435a27..7aa7bf8001 100644
--- a/src/test/modules/test_integerset/meson.build
+++ b/src/test/modules/test_integerset/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_integerset_sources = files(
   'test_integerset.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_integerset = shared_module('test_integerset',
   test_integerset_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_integerset
+test_install_libs += test_integerset
 
-install_data(
+test_install_data += files(
   'test_integerset.control',
   'test_integerset--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_lfind/meson.build b/src/test/modules/test_lfind/meson.build
index 7992535975..646ab4ab00 100644
--- a/src/test/modules/test_lfind/meson.build
+++ b/src/test/modules/test_lfind/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_lfind_sources = files(
   'test_lfind.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_lfind = shared_module('test_lfind',
   test_lfind_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_lfind
+test_install_libs += test_lfind
 
-install_data(
+test_install_data += files(
   'test_lfind.control',
   'test_lfind--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_oat_hooks/meson.build b/src/test/modules/test_oat_hooks/meson.build
index 054dda3646..9c69a1eaf9 100644
--- a/src/test/modules/test_oat_hooks/meson.build
+++ b/src/test/modules/test_oat_hooks/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_oat_hooks_sources = files(
   'test_oat_hooks.c',
 )
@@ -14,9 +12,9 @@ endif
 
 test_oat_hooks = shared_module('test_oat_hooks',
   test_oat_hooks_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_oat_hooks
+test_install_libs += test_oat_hooks
 
 tests += {
   'name': 'test_oat_hooks',
diff --git a/src/test/modules/test_parser/meson.build b/src/test/modules/test_parser/meson.build
index 9cd664e81c..0dcbd788c1 100644
--- a/src/test/modules/test_parser/meson.build
+++ b/src/test/modules/test_parser/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_parser_sources = files(
   'test_parser.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_parser = shared_module('test_parser',
   test_parser_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_parser
+test_install_libs += test_parser
 
-install_data(
+test_install_data += files(
   'test_parser.control',
   'test_parser--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_pg_db_role_setting/meson.build b/src/test/modules/test_pg_db_role_setting/meson.build
index fa0e691d79..8b5881735c 100644
--- a/src/test/modules/test_pg_db_role_setting/meson.build
+++ b/src/test/modules/test_pg_db_role_setting/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_pg_db_role_setting_sources = files(
   'test_pg_db_role_setting.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_pg_db_role_setting = shared_module('test_pg_db_role_setting',
   test_pg_db_role_setting_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_pg_db_role_setting
+test_install_libs += test_pg_db_role_setting
 
-install_data(
+test_install_data += files(
   'test_pg_db_role_setting.control',
   'test_pg_db_role_setting--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_pg_dump/meson.build b/src/test/modules/test_pg_dump/meson.build
index b90046b79b..8f61050c29 100644
--- a/src/test/modules/test_pg_dump/meson.build
+++ b/src/test/modules/test_pg_dump/meson.build
@@ -1,10 +1,8 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-install_data(
+test_install_data += files(
   'test_pg_dump.control',
   'test_pg_dump--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_predtest/meson.build b/src/test/modules/test_predtest/meson.build
index 7f5e523449..5ec87269b2 100644
--- a/src/test/modules/test_predtest/meson.build
+++ b/src/test/modules/test_predtest/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_predtest_sources = files(
   'test_predtest.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_predtest = shared_module('test_predtest',
   test_predtest_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_predtest
+test_install_libs += test_predtest
 
-install_data(
+test_install_data += files(
   'test_predtest.control',
   'test_predtest--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_rbtree/meson.build b/src/test/modules/test_rbtree/meson.build
index 3e42e4caad..47a921da90 100644
--- a/src/test/modules/test_rbtree/meson.build
+++ b/src/test/modules/test_rbtree/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_rbtree_sources = files(
   'test_rbtree.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_rbtree = shared_module('test_rbtree',
   test_rbtree_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_rbtree
+test_install_libs += test_rbtree
 
-install_data(
+test_install_data += files(
   'test_rbtree.control',
   'test_rbtree--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_regex/meson.build b/src/test/modules/test_regex/meson.build
index 486d586dc8..bb0557078b 100644
--- a/src/test/modules/test_regex/meson.build
+++ b/src/test/modules/test_regex/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_regex_sources = files(
   'test_regex.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_regex = shared_module('test_regex',
   test_regex_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_regex
+test_install_libs += test_regex
 
-install_data(
+test_install_data += files(
   'test_regex.control',
   'test_regex--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_rls_hooks/meson.build b/src/test/modules/test_rls_hooks/meson.build
index 7adf23ed77..382e9933e6 100644
--- a/src/test/modules/test_rls_hooks/meson.build
+++ b/src/test/modules/test_rls_hooks/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_rls_hooks_sources = files(
   'test_rls_hooks.c',
 )
@@ -14,9 +12,9 @@ endif
 
 test_rls_hooks = shared_module('test_rls_hooks',
   test_rls_hooks_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_rls_hooks
+test_install_libs += test_rls_hooks
 
 tests += {
   'name': 'test_rls_hooks',
diff --git a/src/test/modules/test_shm_mq/meson.build b/src/test/modules/test_shm_mq/meson.build
index 52b3c5b58c..f24a2ba7f7 100644
--- a/src/test/modules/test_shm_mq/meson.build
+++ b/src/test/modules/test_shm_mq/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_shm_mq_sources = files(
   'setup.c',
   'test.c',
@@ -16,14 +14,13 @@ endif
 
 test_shm_mq = shared_module('test_shm_mq',
   test_shm_mq_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_shm_mq
+test_install_libs += test_shm_mq
 
-install_data(
+test_install_data += files(
   'test_shm_mq.control',
   'test_shm_mq--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/test_slru/meson.build b/src/test/modules/test_slru/meson.build
index 707897e6b0..ecf64ed4a9 100644
--- a/src/test/modules/test_slru/meson.build
+++ b/src/test/modules/test_slru/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_slru_sources = files(
   'test_slru.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_slru = shared_module('test_slru',
   test_slru_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_slru
+test_install_libs += test_slru
 
-install_data(
+test_install_data += files(
   'test_slru.control',
   'test_slru--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/modules/worker_spi/meson.build b/src/test/modules/worker_spi/meson.build
index f6ffe947eb..a8cdfdeb36 100644
--- a/src/test/modules/worker_spi/meson.build
+++ b/src/test/modules/worker_spi/meson.build
@@ -1,7 +1,5 @@
 # Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
-# FIXME: prevent install during main install, but not during test :/
-
 test_worker_spi_sources = files(
   'worker_spi.c',
 )
@@ -14,14 +12,13 @@ endif
 
 test_worker_spi = shared_module('worker_spi',
   test_worker_spi_sources,
-  kwargs: pg_mod_args,
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += test_worker_spi
+test_install_libs += test_worker_spi
 
-install_data(
+test_install_data += files(
   'worker_spi.control',
   'worker_spi--1.0.sql',
-  kwargs: contrib_data_args,
 )
 
 tests += {
diff --git a/src/test/regress/meson.build b/src/test/regress/meson.build
index 6a0584d415..a045c00c1f 100644
--- a/src/test/regress/meson.build
+++ b/src/test/regress/meson.build
@@ -39,11 +39,9 @@ bin_targets += pg_regress
 
 regress_module = shared_module('regress',
   ['regress.c'],
-  kwargs: pg_mod_args + {
-    'install': false,
-  },
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += regress_module
+test_install_libs += regress_module
 
 # Get some extra C modules from contrib/spi but mark them as not to be
 # installed.
@@ -51,20 +49,16 @@ testprep_targets += regress_module
 
 autoinc_regress = shared_module('autoinc',
   ['../../../contrib/spi/autoinc.c'],
-  kwargs: pg_mod_args + {
-    'install': false,
-  },
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += autoinc_regress
+test_install_libs += autoinc_regress
 
 refint_regress = shared_module('refint',
   ['../../../contrib/spi/refint.c'],
   c_args: refint_cflags,
-  kwargs: pg_mod_args + {
-    'install': false,
-  },
+  kwargs: pg_test_mod_args,
 )
-testprep_targets += refint_regress
+test_install_libs += refint_regress
 
 
 tests += {
diff --git a/src/tools/install_test_files b/src/tools/install_test_files
new file mode 100644
index 0000000000..e6ecdae10f
--- /dev/null
+++ b/src/tools/install_test_files
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+# Helper to install additional files into the temporary installation
+# for tests, beyond those that are installed by meson/ninja install.
+
+import argparse
+import shutil
+import os
+
+parser = argparse.ArgumentParser()
+
+parser.add_argument('--datadir', type=str)
+parser.add_argument('--libdir', type=str)
+parser.add_argument('--install-data', type=str, nargs='*')
+parser.add_argument('--install-libs', type=str, nargs='*')
+
+args = parser.parse_args()
+
+
+def copy_files(src_list: list, dest: str):
+    os.makedirs(dest, exist_ok=True)
+
+    for src in src_list:
+        shutil.copy2(src, dest)
+
+
+copy_files(args.install_data, args.datadir)
+copy_files(args.install_libs, args.libdir)