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Add a simple test for contrib/auto_explain.

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This module formerly had zero test coverage.

Discussion: https://postgr.es/m/1445881.1611441692@sss.pgh.pa.us
This commit is contained in:
Tom Lane 2021-01-24 14:59:33 -05:00
parent 8a337b0ed2
commit 0c1e8845f2
3 changed files with 58 additions and 0 deletions
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4
contrib/auto_explain/.gitignore vendored Normal file
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@ -0,0 +1,4 @@
# Generated subdirectories
/log/
/results/
/tmp_check/

2
contrib/auto_explain/Makefile
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@ -6,6 +6,8 @@ OBJS = \
auto_explain.o auto_explain.o
PGFILEDESC = "auto_explain - logging facility for execution plans" PGFILEDESC = "auto_explain - logging facility for execution plans"
TAP_TESTS = 1
ifdef USE_PGXS ifdef USE_PGXS
PG_CONFIG = pg_config PG_CONFIG = pg_config
PGXS := $(shell $(PG_CONFIG) --pgxs) PGXS := $(shell $(PG_CONFIG) --pgxs)

52
contrib/auto_explain/t/001_auto_explain.pl Normal file
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@ -0,0 +1,52 @@
use strict;
use warnings;
use PostgresNode;
use TestLib;
use Test::More tests => 4;
my $node = get_new_node('main');
$node->init;
$node->append_conf('postgresql.conf',
"shared_preload_libraries = 'auto_explain'");
$node->append_conf('postgresql.conf', "auto_explain.log_min_duration = 0");
$node->append_conf('postgresql.conf', "auto_explain.log_analyze = on");
$node->start;
# run a couple of queries
$node->safe_psql("postgres", "SELECT * FROM pg_class;");
$node->safe_psql("postgres",
"SELECT * FROM pg_proc WHERE proname = 'int4pl';");
# emit some json too
$node->append_conf('postgresql.conf', "auto_explain.log_format = json");
$node->reload;
$node->safe_psql("postgres", "SELECT * FROM pg_proc;");
$node->safe_psql("postgres",
"SELECT * FROM pg_class WHERE relname = 'pg_class';");
$node->stop('fast');
my $log = $node->logfile();
my $log_contents = slurp_file($log);
like(
$log_contents,
qr/Seq Scan on pg_class/,
"sequential scan logged, text mode");
like(
$log_contents,
qr/Index Scan using pg_proc_proname_args_nsp_index on pg_proc/,
"index scan logged, text mode");
like(
$log_contents,
qr/"Node Type": "Seq Scan"[^}]*"Relation Name": "pg_proc"/s,
"sequential scan logged, json mode");
like(
$log_contents,
qr/"Node Type": "Index Scan"[^}]*"Index Name": "pg_class_relname_nsp_index"/s,
"index scan logged, json mode");