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diff --git a/src/bin/pg_amcheck/t/002_nonesuch.pl b/src/bin/pg_amcheck/t/002_nonesuch.pl
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+
+# Copyright (c) 2021-2022, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+
+use PostgreSQL::Test::Cluster;
+use PostgreSQL::Test::Utils;
+use Test::More;
+
+# Test set-up
+my ($node, $port);
+$node = PostgreSQL::Test::Cluster->new('test');
+$node->init;
+$node->start;
+$port = $node->port;
+
+# Load the amcheck extension, upon which pg_amcheck depends
+$node->safe_psql('postgres', q(CREATE EXTENSION amcheck));
+
+#########################################
+# Test non-existent databases
+
+# Failing to connect to the initial database is an error.
+$node->command_checks_all(
+ [ 'pg_amcheck', 'qqq' ],
+ 1, [qr/^$/],
+ [qr/FATAL: database "qqq" does not exist/],
+ 'checking a non-existent database');
+
+# Failing to resolve a database pattern is an error by default.
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'qqq', '-d', 'postgres' ],
+ 1,
+ [qr/^$/],
+ [qr/pg_amcheck: error: no connectable databases to check matching "qqq"/],
+ 'checking an unresolvable database pattern');
+
+# But only a warning under --no-strict-names
+$node->command_checks_all(
+ [ 'pg_amcheck', '--no-strict-names', '-d', 'qqq', '-d', 'postgres' ],
+ 0,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: no connectable databases to check matching "qqq"/
+ ],
+ 'checking an unresolvable database pattern under --no-strict-names');
+
+# Check that a substring of an existent database name does not get interpreted
+# as a matching pattern.
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'post', '-d', 'postgres' ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "post"/
+ ],
+ 'checking an unresolvable database pattern (substring of existent database)'
+);
+
+# Check that a superstring of an existent database name does not get interpreted
+# as a matching pattern.
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'postgresql', '-d', 'postgres' ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "postgresql"/
+ ],
+ 'checking an unresolvable database pattern (superstring of existent database)'
+);
+
+#########################################
+# Test connecting with a non-existent user
+
+# Failing to connect to the initial database due to bad username is an error.
+$node->command_checks_all([ 'pg_amcheck', '-U', 'no_such_user', 'postgres' ],
+ 1, [qr/^$/], [], 'checking with a non-existent user');
+
+#########################################
+# Test checking databases without amcheck installed
+
+# Attempting to check a database by name where amcheck is not installed should
+# raise a warning. If all databases are skipped, having no relations to check
+# raises an error.
+$node->command_checks_all(
+ [ 'pg_amcheck', 'template1' ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/,
+ qr/pg_amcheck: error: no relations to check/
+ ],
+ 'checking a database by name without amcheck installed, no other databases'
+);
+
+# Again, but this time with another database to check, so no error is raised.
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'template1', '-d', 'postgres' ],
+ 0,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/
+ ],
+ 'checking a database by name without amcheck installed, with other databases'
+);
+
+# Again, but by way of checking all databases
+$node->command_checks_all(
+ [ 'pg_amcheck', '--all' ],
+ 0,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/
+ ],
+ 'checking a database by pattern without amcheck installed, with other databases'
+);
+
+#########################################
+# Test unreasonable patterns
+
+# Check three-part unreasonable pattern that has zero-length names
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'postgres', '-t', '..' ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "\.\."/
+ ],
+ 'checking table pattern ".."');
+
+# Again, but with non-trivial schema and relation parts
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'postgres', '-t', '.foo.bar' ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "\.foo\.bar"/
+ ],
+ 'checking table pattern ".foo.bar"');
+
+# Check two-part unreasonable pattern that has zero-length names
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'postgres', '-t', '.' ],
+ 1,
+ [qr/^$/],
+ [qr/pg_amcheck: error: no heap tables to check matching "\."/],
+ 'checking table pattern "."');
+
+# Check that a multipart database name is rejected
+$node->command_checks_all(
+ [ 'pg_amcheck', '-d', 'localhost.postgres' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): localhost\.postgres/
+ ],
+ 'multipart database patterns are rejected');
+
+# Check that a three-part schema name is rejected
+$node->command_checks_all(
+ [ 'pg_amcheck', '-s', 'localhost.postgres.pg_catalog' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): localhost\.postgres\.pg_catalog/
+ ],
+ 'three part schema patterns are rejected');
+
+# Check that a four-part table name is rejected
+$node->command_checks_all(
+ [ 'pg_amcheck', '-t', 'localhost.postgres.pg_catalog.pg_class' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper relation name \(too many dotted names\): localhost\.postgres\.pg_catalog\.pg_class/
+ ],
+ 'four part table patterns are rejected');
+
+# Check that too many dotted names still draws an error under --no-strict-names
+# That flag means that it is ok for the object to be missing, not that it is ok
+# for the object name to be ungrammatical
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--no-strict-names',
+ '-t', 'this.is.a.really.long.dotted.string'
+ ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper relation name \(too many dotted names\): this\.is\.a\.really\.long\.dotted\.string/
+ ],
+ 'ungrammatical table names still draw errors under --no-strict-names');
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--no-strict-names', '-s',
+ 'postgres.long.dotted.string'
+ ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): postgres\.long\.dotted\.string/
+ ],
+ 'ungrammatical schema names still draw errors under --no-strict-names');
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--no-strict-names', '-d',
+ 'postgres.long.dotted.string'
+ ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): postgres\.long\.dotted\.string/
+ ],
+ 'ungrammatical database names still draw errors under --no-strict-names');
+
+# Likewise for exclusion patterns
+$node->command_checks_all(
+ [ 'pg_amcheck', '--no-strict-names', '-T', 'a.b.c.d' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper relation name \(too many dotted names\): a\.b\.c\.d/
+ ],
+ 'ungrammatical table exclusions still draw errors under --no-strict-names'
+);
+$node->command_checks_all(
+ [ 'pg_amcheck', '--no-strict-names', '-S', 'a.b.c' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): a\.b\.c/
+ ],
+ 'ungrammatical schema exclusions still draw errors under --no-strict-names'
+);
+$node->command_checks_all(
+ [ 'pg_amcheck', '--no-strict-names', '-D', 'a.b' ],
+ 2,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: improper qualified name \(too many dotted names\): a\.b/
+ ],
+ 'ungrammatical database exclusions still draw errors under --no-strict-names'
+);
+
+
+#########################################
+# Test checking non-existent databases, schemas, tables, and indexes
+
+# Use --no-strict-names and a single existent table so we only get warnings
+# about the failed pattern matches
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--no-strict-names',
+ '-t', 'no_such_table',
+ '-t', 'no*such*table',
+ '-i', 'no_such_index',
+ '-i', 'no*such*index',
+ '-r', 'no_such_relation',
+ '-r', 'no*such*relation',
+ '-d', 'no_such_database',
+ '-d', 'no*such*database',
+ '-r', 'none.none',
+ '-r', 'none.none.none',
+ '-r', 'postgres.none.none',
+ '-r', 'postgres.pg_catalog.none',
+ '-r', 'postgres.none.pg_class',
+ '-t', 'postgres.pg_catalog.pg_class', # This exists
+ ],
+ 0,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: no heap tables to check matching "no_such_table"/,
+ qr/pg_amcheck: warning: no heap tables to check matching "no\*such\*table"/,
+ qr/pg_amcheck: warning: no btree indexes to check matching "no_such_index"/,
+ qr/pg_amcheck: warning: no btree indexes to check matching "no\*such\*index"/,
+ qr/pg_amcheck: warning: no relations to check matching "no_such_relation"/,
+ qr/pg_amcheck: warning: no relations to check matching "no\*such\*relation"/,
+ qr/pg_amcheck: warning: no heap tables to check matching "no\*such\*table"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no_such_database"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no\*such\*database"/,
+ qr/pg_amcheck: warning: no relations to check matching "none\.none"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "none\.none\.none"/,
+ qr/pg_amcheck: warning: no relations to check matching "postgres\.none\.none"/,
+ qr/pg_amcheck: warning: no relations to check matching "postgres\.pg_catalog\.none"/,
+ qr/pg_amcheck: warning: no relations to check matching "postgres\.none\.pg_class"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no_such_database"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no\*such\*database"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "none\.none\.none"/,
+ ],
+ 'many unmatched patterns and one matched pattern under --no-strict-names'
+);
+
+
+#########################################
+# Test that an invalid / partially dropped database won't be targeted
+
+$node->safe_psql(
+ 'postgres', q(
+ CREATE DATABASE regression_invalid;
+ UPDATE pg_database SET datconnlimit = -2 WHERE datname = 'regression_invalid';
+));
+
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '-d', 'regression_invalid'
+ ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "regression_invalid"/,
+ ],
+ 'checking handling of invalid database');
+
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '-d', 'postgres',
+ '-t', 'regression_invalid.public.foo',
+ ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: error: no connectable databases to check matching "regression_invalid.public.foo"/,
+ ],
+ 'checking handling of object in invalid database');
+
+
+#########################################
+# Test checking otherwise existent objects but in databases where they do not exist
+
+$node->safe_psql(
+ 'postgres', q(
+ CREATE TABLE public.foo (f integer);
+ CREATE INDEX foo_idx ON foo(f);
+));
+$node->safe_psql('postgres', q(CREATE DATABASE another_db));
+
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '-d',
+ 'postgres', '--no-strict-names',
+ '-t', 'template1.public.foo',
+ '-t', 'another_db.public.foo',
+ '-t', 'no_such_database.public.foo',
+ '-i', 'template1.public.foo_idx',
+ '-i', 'another_db.public.foo_idx',
+ '-i', 'no_such_database.public.foo_idx',
+ ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/,
+ qr/pg_amcheck: warning: no heap tables to check matching "template1\.public\.foo"/,
+ qr/pg_amcheck: warning: no heap tables to check matching "another_db\.public\.foo"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no_such_database\.public\.foo"/,
+ qr/pg_amcheck: warning: no btree indexes to check matching "template1\.public\.foo_idx"/,
+ qr/pg_amcheck: warning: no btree indexes to check matching "another_db\.public\.foo_idx"/,
+ qr/pg_amcheck: warning: no connectable databases to check matching "no_such_database\.public\.foo_idx"/,
+ qr/pg_amcheck: error: no relations to check/,
+ ],
+ 'checking otherwise existent objets in the wrong databases');
+
+
+#########################################
+# Test schema exclusion patterns
+
+# Check with only schema exclusion patterns
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--all', '--no-strict-names', '-S',
+ 'public', '-S', 'pg_catalog', '-S',
+ 'pg_toast', '-S', 'information_schema',
+ ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/,
+ qr/pg_amcheck: error: no relations to check/
+ ],
+ 'schema exclusion patterns exclude all relations');
+
+# Check with schema exclusion patterns overriding relation and schema inclusion patterns
+$node->command_checks_all(
+ [
+ 'pg_amcheck', '--all', '--no-strict-names', '-s',
+ 'public', '-s', 'pg_catalog', '-s',
+ 'pg_toast', '-s', 'information_schema', '-t',
+ 'pg_catalog.pg_class', '-S*'
+ ],
+ 1,
+ [qr/^$/],
+ [
+ qr/pg_amcheck: warning: skipping database "template1": amcheck is not installed/,
+ qr/pg_amcheck: error: no relations to check/
+ ],
+ 'schema exclusion pattern overrides all inclusion patterns');
+
+done_testing();
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 18:11:49 +0000