postgresql/src/bin/psql/t/010_tab_completion.pl

449 lines
12 KiB
Perl

# Copyright (c) 2021-2023, PostgreSQL Global Development Group
use strict;
use warnings;
use PostgreSQL::Test::Cluster;
use PostgreSQL::Test::Utils;
use Test::More;
use Data::Dumper;
# Do nothing unless Makefile has told us that the build is --with-readline.
if (!defined($ENV{with_readline}) || $ENV{with_readline} ne 'yes')
{
plan skip_all => 'readline is not supported by this build';
}
# Also, skip if user has set environment variable to command that.
# This is mainly intended to allow working around some of the more broken
# versions of libedit --- some users might find them acceptable even if
# they won't pass these tests.
if (defined($ENV{SKIP_READLINE_TESTS}))
{
plan skip_all => 'SKIP_READLINE_TESTS is set';
}
# If we don't have IO::Pty, forget it, because IPC::Run depends on that
# to support pty connections
eval { require IO::Pty; };
if ($@)
{
plan skip_all => 'IO::Pty is needed to run this test';
}
# start a new server
my $node = PostgreSQL::Test::Cluster->new('main');
$node->init;
$node->start;
# set up a few database objects
$node->safe_psql('postgres',
"CREATE TABLE tab1 (c1 int primary key, c2 text);\n"
. "CREATE TABLE mytab123 (f1 int, f2 text);\n"
. "CREATE TABLE mytab246 (f1 int, f2 text);\n"
. "CREATE TABLE \"mixedName\" (f1 int, f2 text);\n"
. "CREATE TYPE enum1 AS ENUM ('foo', 'bar', 'baz', 'BLACK');\n"
. "CREATE PUBLICATION some_publication;\n");
# Developers would not appreciate this test adding a bunch of junk to
# their ~/.psql_history, so be sure to redirect history into a temp file.
# We might as well put it in the test log directory, so that buildfarm runs
# capture the result for possible debugging purposes.
my $historyfile = "${PostgreSQL::Test::Utils::log_path}/010_psql_history.txt";
$ENV{PSQL_HISTORY} = $historyfile;
# Another pitfall for developers is that they might have a ~/.inputrc
# file that changes readline's behavior enough to affect this test.
# So ignore any such file.
$ENV{INPUTRC} = '/dev/null';
# Unset $TERM so that readline/libedit won't use any terminal-dependent
# escape sequences; that leads to way too many cross-version variations
# in the output.
delete $ENV{TERM};
# Some versions of readline inspect LS_COLORS, so for luck unset that too.
delete $ENV{LS_COLORS};
# In a VPATH build, we'll be started in the source directory, but we want
# to run in the build directory so that we can use relative paths to
# access the tab_comp_dir subdirectory; otherwise the output from filename
# completion tests is too variable.
if ($ENV{TESTDATADIR})
{
chdir $ENV{TESTDATADIR}
or die "could not chdir to \"$ENV{TESTDATADIR}\": $!";
}
# Create some junk files for filename completion testing.
mkdir "tab_comp_dir";
my $FH;
open $FH, ">", "tab_comp_dir/somefile"
or die("could not create file \"tab_comp_dir/somefile\": $!");
print $FH "some stuff\n";
close $FH;
open $FH, ">", "tab_comp_dir/afile123"
or die("could not create file \"tab_comp_dir/afile123\": $!");
print $FH "more stuff\n";
close $FH;
open $FH, ">", "tab_comp_dir/afile456"
or die("could not create file \"tab_comp_dir/afile456\": $!");
print $FH "other stuff\n";
close $FH;
# fire up an interactive psql session
my $h = $node->interactive_psql('postgres');
# Simple test case: type something and see if psql responds as expected
sub check_completion
{
my ($send, $pattern, $annotation) = @_;
# report test failures from caller location
local $Test::Builder::Level = $Test::Builder::Level + 1;
# restart per-command timer
$h->{timeout}->start($PostgreSQL::Test::Utils::timeout_default);
# send the data to be sent and wait for its result
my $out = $h->query_until($pattern, $send);
my $okay = ($out =~ $pattern && !$h->{timeout}->is_expired);
ok($okay, $annotation);
# for debugging, log actual output if it didn't match
local $Data::Dumper::Terse = 1;
local $Data::Dumper::Useqq = 1;
diag 'Actual output was ' . Dumper($out) . "Did not match \"$pattern\"\n"
if !$okay;
return;
}
# Clear query buffer to start over
# (won't work if we are inside a string literal!)
sub clear_query
{
local $Test::Builder::Level = $Test::Builder::Level + 1;
check_completion("\\r\n", qr/Query buffer reset.*postgres=# /s,
"\\r works");
return;
}
# Clear current line to start over
# (this will work in an incomplete string literal, but it's less desirable
# than clear_query because we lose evidence in the history file)
sub clear_line
{
local $Test::Builder::Level = $Test::Builder::Level + 1;
check_completion("\025\n", qr/postgres=# /, "control-U works");
return;
}
# check basic command completion: SEL<tab> produces SELECT<space>
check_completion("SEL\t", qr/SELECT /, "complete SEL<tab> to SELECT");
clear_query();
# check case variation is honored
check_completion("sel\t", qr/select /, "complete sel<tab> to select");
# check basic table name completion
check_completion("* from t\t", qr/\* from tab1 /, "complete t<tab> to tab1");
clear_query();
# check table name completion with multiple alternatives
# note: readline might print a bell before the completion
check_completion(
"select * from my\t",
qr/select \* from my\a?tab/,
"complete my<tab> to mytab when there are multiple choices");
# some versions of readline/libedit require two tabs here, some only need one
check_completion(
"\t\t",
qr/mytab123 +mytab246/,
"offer multiple table choices");
check_completion("2\t", qr/246 /,
"finish completion of one of multiple table choices");
clear_query();
# check handling of quoted names
check_completion(
"select * from \"my\t",
qr/select \* from "my\a?tab/,
"complete \"my<tab> to \"mytab when there are multiple choices");
check_completion(
"\t\t",
qr/"mytab123" +"mytab246"/,
"offer multiple quoted table choices");
# note: broken versions of libedit want to backslash the closing quote;
# not much we can do about that
check_completion("2\t", qr/246\\?" /,
"finish completion of one of multiple quoted table choices");
# note: broken versions of libedit may leave us in a state where psql
# thinks there's an unclosed double quote, so that we have to use
# clear_line not clear_query here
clear_line();
# check handling of mixed-case names
# note: broken versions of libedit want to backslash the closing quote;
# not much we can do about that
check_completion(
"select * from \"mi\t",
qr/"mixedName\\?" /,
"complete a mixed-case name");
# as above, must use clear_line not clear_query here
clear_line();
# check case folding
check_completion("select * from TAB\t", qr/tab1 /, "automatically fold case");
clear_query();
# check case-sensitive keyword replacement
# note: various versions of readline/libedit handle backspacing
# differently, so just check that the replacement comes out correctly
check_completion("\\DRD\t", qr/drds /, "complete \\DRD<tab> to \\drds");
# broken versions of libedit require clear_line not clear_query here
clear_line();
# check completion of a schema-qualified name
check_completion("select * from pub\t",
qr/public\./, "complete schema when relevant");
check_completion("tab\t", qr/tab1 /, "complete schema-qualified name");
clear_query();
check_completion(
"select * from PUBLIC.t\t",
qr/public\.tab1 /,
"automatically fold case in schema-qualified name");
clear_query();
# check interpretation of referenced names
check_completion(
"alter table tab1 drop constraint \t",
qr/tab1_pkey /,
"complete index name for referenced table");
clear_query();
check_completion(
"alter table TAB1 drop constraint \t",
qr/tab1_pkey /,
"complete index name for referenced table, with downcasing");
clear_query();
check_completion(
"alter table public.\"tab1\" drop constraint \t",
qr/tab1_pkey /,
"complete index name for referenced table, with schema and quoting");
clear_query();
# check variant where we're completing a qualified name from a refname
# (this one also checks successful completion in a multiline command)
check_completion(
"comment on constraint tab1_pkey \n on public.\t",
qr/public\.tab1/,
"complete qualified name from object reference");
clear_query();
# check filename completion
check_completion(
"\\lo_import tab_comp_dir/some\t",
qr|tab_comp_dir/somefile |,
"filename completion with one possibility");
clear_query();
# note: readline might print a bell before the completion
check_completion(
"\\lo_import tab_comp_dir/af\t",
qr|tab_comp_dir/af\a?ile|,
"filename completion with multiple possibilities");
# broken versions of libedit require clear_line not clear_query here
clear_line();
# COPY requires quoting
# note: broken versions of libedit want to backslash the closing quote;
# not much we can do about that
check_completion(
"COPY foo FROM tab_comp_dir/some\t",
qr|'tab_comp_dir/somefile\\?' |,
"quoted filename completion with one possibility");
clear_line();
check_completion(
"COPY foo FROM tab_comp_dir/af\t",
qr|'tab_comp_dir/afile|,
"quoted filename completion with multiple possibilities");
# some versions of readline/libedit require two tabs here, some only need one
# also, some will offer the whole path name and some just the file name
# the quotes might appear, too
check_completion(
"\t\t",
qr|afile123'? +'?(tab_comp_dir/)?afile456|,
"offer multiple file choices");
clear_line();
# check enum label completion
# some versions of readline/libedit require two tabs here, some only need one
# also, some versions will offer quotes, some will not
check_completion(
"ALTER TYPE enum1 RENAME VALUE 'ba\t\t",
qr|'?bar'? +'?baz'?|,
"offer multiple enum choices");
clear_line();
# enum labels are case sensitive, so this should complete BLACK immediately
check_completion(
"ALTER TYPE enum1 RENAME VALUE 'B\t",
qr|BLACK|,
"enum labels are case sensitive");
clear_line();
# check timezone name completion
check_completion("SET timezone TO am\t",
qr|'America/|, "offer partial timezone name");
check_completion("new_\t", qr|New_York|, "complete partial timezone name");
clear_line();
# check completion of a keyword offered in addition to object names;
# such a keyword should obey COMP_KEYWORD_CASE
foreach (
[ 'lower', 'CO', 'column' ],
[ 'upper', 'co', 'COLUMN' ],
[ 'preserve-lower', 'co', 'column' ],
[ 'preserve-upper', 'CO', 'COLUMN' ],)
{
my ($case, $in, $out) = @$_;
check_completion(
"\\set COMP_KEYWORD_CASE $case\n",
qr/postgres=#/,
"set completion case to '$case'");
check_completion("alter table tab1 rename $in\t\t\t",
qr|$out|,
"offer keyword $out for input $in<TAB>, COMP_KEYWORD_CASE = $case");
clear_query();
}
# alternate path where keyword comes from SchemaQuery
check_completion(
"DROP TYPE big\t",
qr/DROP TYPE bigint /,
"offer keyword from SchemaQuery");
clear_query();
# check create_command_generator
check_completion(
"CREATE TY\t",
qr/CREATE TYPE /,
"check create_command_generator");
clear_query();
# check words_after_create infrastructure
check_completion(
"CREATE TABLE mytab\t\t",
qr/mytab123 +mytab246/,
"check words_after_create");
clear_query();
# check VersionedQuery infrastructure
check_completion(
"DROP PUBLIC\t \t\t",
qr/DROP PUBLICATION\s+some_publication /,
"check VersionedQuery");
clear_query();
# hits ends_with() and logic for completing in multi-line queries
check_completion("analyze (\n\t\t", qr/VERBOSE/,
"check ANALYZE (VERBOSE ...");
clear_query();
# check completions for GUCs
check_completion(
"set interval\t\t",
qr/intervalstyle TO/,
"complete a GUC name");
check_completion(" iso\t", qr/iso_8601 /, "complete a GUC enum value");
clear_query();
# same, for qualified GUC names
check_completion(
"DO \$\$begin end\$\$ LANGUAGE plpgsql;\n",
qr/postgres=# /,
"load plpgsql extension");
check_completion("set plpg\t", qr/plpg\a?sql\./,
"complete prefix of a GUC name");
check_completion(
"var\t\t",
qr/variable_conflict TO/,
"complete a qualified GUC name");
check_completion(" USE_C\t",
qr/use_column/, "complete a qualified GUC enum value");
clear_query();
# check completions for psql variables
check_completion("\\set VERB\t", qr/VERBOSITY /,
"complete a psql variable name");
check_completion("def\t", qr/default /, "complete a psql variable value");
clear_query();
check_completion(
"\\echo :VERB\t",
qr/:VERBOSITY /,
"complete an interpolated psql variable name");
clear_query();
# check no-completions code path
check_completion("blarg \t\t", qr//, "check completion failure path");
clear_query();
# check COPY FROM with DEFAULT option
check_completion(
"COPY foo FROM stdin WITH ( DEF\t)",
qr/DEFAULT /,
"COPY FROM with DEFAULT completion");
clear_line();
# send psql an explicit \q to shut it down, else pty won't close properly
$h->quit or die "psql returned $?";
# done
$node->stop;
done_testing();