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|
// SPDX-License-Identifier: GPL-3.0-or-later
package postgres
import (
"bufio"
"bytes"
"database/sql/driver"
"errors"
"fmt"
"os"
"strings"
"testing"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/matcher"
"github.com/DATA-DOG/go-sqlmock"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
dataConfigJSON, _ = os.ReadFile("testdata/config.json")
dataConfigYAML, _ = os.ReadFile("testdata/config.yaml")
dataVer140004ServerVersionNum, _ = os.ReadFile("testdata/v14.4/server_version_num.txt")
dataVer140004IsSuperUserFalse, _ = os.ReadFile("testdata/v14.4/is_super_user-false.txt")
dataVer140004IsSuperUserTrue, _ = os.ReadFile("testdata/v14.4/is_super_user-true.txt")
dataVer140004PGIsInRecoveryTrue, _ = os.ReadFile("testdata/v14.4/pg_is_in_recovery-true.txt")
dataVer140004SettingsMaxConnections, _ = os.ReadFile("testdata/v14.4/settings_max_connections.txt")
dataVer140004SettingsMaxLocksHeld, _ = os.ReadFile("testdata/v14.4/settings_max_locks_held.txt")
dataVer140004ServerCurrentConnections, _ = os.ReadFile("testdata/v14.4/server_current_connections.txt")
dataVer140004ServerConnectionsState, _ = os.ReadFile("testdata/v14.4/server_connections_state.txt")
dataVer140004Checkpoints, _ = os.ReadFile("testdata/v14.4/checkpoints.txt")
dataVer140004ServerUptime, _ = os.ReadFile("testdata/v14.4/uptime.txt")
dataVer140004TXIDWraparound, _ = os.ReadFile("testdata/v14.4/txid_wraparound.txt")
dataVer140004WALWrites, _ = os.ReadFile("testdata/v14.4/wal_writes.txt")
dataVer140004WALFiles, _ = os.ReadFile("testdata/v14.4/wal_files.txt")
dataVer140004WALArchiveFiles, _ = os.ReadFile("testdata/v14.4/wal_archive_files.txt")
dataVer140004CatalogRelations, _ = os.ReadFile("testdata/v14.4/catalog_relations.txt")
dataVer140004AutovacuumWorkers, _ = os.ReadFile("testdata/v14.4/autovacuum_workers.txt")
dataVer140004XactQueryRunningTime, _ = os.ReadFile("testdata/v14.4/xact_query_running_time.txt")
dataVer140004ReplStandbyAppDelta, _ = os.ReadFile("testdata/v14.4/replication_standby_app_wal_delta.txt")
dataVer140004ReplStandbyAppLag, _ = os.ReadFile("testdata/v14.4/replication_standby_app_wal_lag.txt")
dataVer140004ReplSlotFiles, _ = os.ReadFile("testdata/v14.4/replication_slot_files.txt")
dataVer140004DatabaseStats, _ = os.ReadFile("testdata/v14.4/database_stats.txt")
dataVer140004DatabaseSize, _ = os.ReadFile("testdata/v14.4/database_size.txt")
dataVer140004DatabaseConflicts, _ = os.ReadFile("testdata/v14.4/database_conflicts.txt")
dataVer140004DatabaseLocks, _ = os.ReadFile("testdata/v14.4/database_locks.txt")
dataVer140004QueryableDatabaseList, _ = os.ReadFile("testdata/v14.4/queryable_database_list.txt")
dataVer140004StatUserTablesDBPostgres, _ = os.ReadFile("testdata/v14.4/stat_user_tables_db_postgres.txt")
dataVer140004StatIOUserTablesDBPostgres, _ = os.ReadFile("testdata/v14.4/statio_user_tables_db_postgres.txt")
dataVer140004StatUserIndexesDBPostgres, _ = os.ReadFile("testdata/v14.4/stat_user_indexes_db_postgres.txt")
dataVer140004Bloat, _ = os.ReadFile("testdata/v14.4/bloat_tables.txt")
dataVer140004ColumnsStats, _ = os.ReadFile("testdata/v14.4/table_columns_stats.txt")
)
func Test_testDataIsValid(t *testing.T) {
for name, data := range map[string][]byte{
"dataConfigJSON": dataConfigJSON,
"dataConfigYAML": dataConfigYAML,
"dataVer140004ServerVersionNum": dataVer140004ServerVersionNum,
"dataVer140004IsSuperUserFalse": dataVer140004IsSuperUserFalse,
"dataVer140004IsSuperUserTrue": dataVer140004IsSuperUserTrue,
"dataVer140004PGIsInRecoveryTrue": dataVer140004PGIsInRecoveryTrue,
"dataVer140004SettingsMaxConnections": dataVer140004SettingsMaxConnections,
"dataVer140004SettingsMaxLocksHeld": dataVer140004SettingsMaxLocksHeld,
"dataVer140004ServerCurrentConnections": dataVer140004ServerCurrentConnections,
"dataVer140004ServerConnectionsState": dataVer140004ServerConnectionsState,
"dataVer140004Checkpoints": dataVer140004Checkpoints,
"dataVer140004ServerUptime": dataVer140004ServerUptime,
"dataVer140004TXIDWraparound": dataVer140004TXIDWraparound,
"dataVer140004WALWrites": dataVer140004WALWrites,
"dataVer140004WALFiles": dataVer140004WALFiles,
"dataVer140004WALArchiveFiles": dataVer140004WALArchiveFiles,
"dataVer140004CatalogRelations": dataVer140004CatalogRelations,
"dataVer140004AutovacuumWorkers": dataVer140004AutovacuumWorkers,
"dataVer140004XactQueryRunningTime": dataVer140004XactQueryRunningTime,
"dataV14004ReplStandbyAppDelta": dataVer140004ReplStandbyAppDelta,
"dataV14004ReplStandbyAppLag": dataVer140004ReplStandbyAppLag,
"dataVer140004ReplSlotFiles": dataVer140004ReplSlotFiles,
"dataVer140004DatabaseStats": dataVer140004DatabaseStats,
"dataVer140004DatabaseSize": dataVer140004DatabaseSize,
"dataVer140004DatabaseConflicts": dataVer140004DatabaseConflicts,
"dataVer140004DatabaseLocks": dataVer140004DatabaseLocks,
"dataVer140004QueryableDatabaseList": dataVer140004QueryableDatabaseList,
"dataVer140004StatUserTablesDBPostgres": dataVer140004StatUserTablesDBPostgres,
"dataVer140004StatIOUserTablesDBPostgres": dataVer140004StatIOUserTablesDBPostgres,
"dataVer140004StatUserIndexesDBPostgres": dataVer140004StatUserIndexesDBPostgres,
"dataVer140004Bloat": dataVer140004Bloat,
"dataVer140004ColumnsStats": dataVer140004ColumnsStats,
} {
require.NotNil(t, data, name)
}
}
func TestPostgres_ConfigurationSerialize(t *testing.T) {
module.TestConfigurationSerialize(t, &Postgres{}, dataConfigJSON, dataConfigYAML)
}
func TestPostgres_Init(t *testing.T) {
tests := map[string]struct {
wantFail bool
config Config
}{
"Success with default": {
wantFail: false,
config: New().Config,
},
"Fail when DSN not set": {
wantFail: true,
config: Config{DSN: ""},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
pg := New()
pg.Config = test.config
if test.wantFail {
assert.Error(t, pg.Init())
} else {
assert.NoError(t, pg.Init())
}
})
}
}
func TestPostgres_Cleanup(t *testing.T) {
}
func TestPostgres_Charts(t *testing.T) {
assert.NotNil(t, New().Charts())
}
func TestPostgres_Check(t *testing.T) {
tests := map[string]struct {
prepareMock func(t *testing.T, pg *Postgres, mock sqlmock.Sqlmock)
wantFail bool
}{
"Success when all queries are successful (v14.4)": {
wantFail: false,
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
pg.dbSr = matcher.TRUE()
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpect(t, m, querySettingsMaxConnections(), dataVer140004SettingsMaxConnections)
mockExpect(t, m, querySettingsMaxLocksHeld(), dataVer140004SettingsMaxLocksHeld)
mockExpect(t, m, queryServerCurrentConnectionsUsed(), dataVer140004ServerCurrentConnections)
mockExpect(t, m, queryServerConnectionsState(), dataVer140004ServerConnectionsState)
mockExpect(t, m, queryCheckpoints(), dataVer140004Checkpoints)
mockExpect(t, m, queryServerUptime(), dataVer140004ServerUptime)
mockExpect(t, m, queryTXIDWraparound(), dataVer140004TXIDWraparound)
mockExpect(t, m, queryWALWrites(140004), dataVer140004WALWrites)
mockExpect(t, m, queryCatalogRelations(), dataVer140004CatalogRelations)
mockExpect(t, m, queryAutovacuumWorkers(), dataVer140004AutovacuumWorkers)
mockExpect(t, m, queryXactQueryRunningTime(), dataVer140004XactQueryRunningTime)
mockExpect(t, m, queryWALFiles(140004), dataVer140004WALFiles)
mockExpect(t, m, queryWALArchiveFiles(140004), dataVer140004WALArchiveFiles)
mockExpect(t, m, queryReplicationStandbyAppDelta(140004), dataVer140004ReplStandbyAppDelta)
mockExpect(t, m, queryReplicationStandbyAppLag(), dataVer140004ReplStandbyAppLag)
mockExpect(t, m, queryReplicationSlotFiles(140004), dataVer140004ReplSlotFiles)
mockExpect(t, m, queryDatabaseStats(), dataVer140004DatabaseStats)
mockExpect(t, m, queryDatabaseSize(140004), dataVer140004DatabaseSize)
mockExpect(t, m, queryDatabaseConflicts(), dataVer140004DatabaseConflicts)
mockExpect(t, m, queryDatabaseLocks(), dataVer140004DatabaseLocks)
mockExpect(t, m, queryQueryableDatabaseList(), dataVer140004QueryableDatabaseList)
mockExpect(t, m, queryStatUserTables(), dataVer140004StatUserTablesDBPostgres)
mockExpect(t, m, queryStatIOUserTables(), dataVer140004StatIOUserTablesDBPostgres)
mockExpect(t, m, queryStatUserIndexes(), dataVer140004StatUserIndexesDBPostgres)
mockExpect(t, m, queryBloat(), dataVer140004Bloat)
mockExpect(t, m, queryColumnsStats(), dataVer140004ColumnsStats)
},
},
"Fail when the second query unsuccessful (v14.4)": {
wantFail: true,
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpect(t, m, querySettingsMaxConnections(), dataVer140004ServerVersionNum)
mockExpect(t, m, querySettingsMaxLocksHeld(), dataVer140004SettingsMaxLocksHeld)
mockExpect(t, m, queryServerCurrentConnectionsUsed(), dataVer140004ServerCurrentConnections)
mockExpectErr(m, queryServerConnectionsState())
},
},
"Fail when querying the database version returns an error": {
wantFail: true,
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpectErr(m, queryServerVersion())
},
},
"Fail when querying settings max connection returns an error": {
wantFail: true,
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpectErr(m, querySettingsMaxConnections())
},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
db, mock, err := sqlmock.New(
sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual),
)
require.NoError(t, err)
pg := New()
pg.db = db
defer func() { _ = db.Close() }()
require.NoError(t, pg.Init())
test.prepareMock(t, pg, mock)
if test.wantFail {
assert.Error(t, pg.Check())
} else {
assert.NoError(t, pg.Check())
}
assert.NoError(t, mock.ExpectationsWereMet())
})
}
}
func TestPostgres_Collect(t *testing.T) {
type testCaseStep struct {
prepareMock func(t *testing.T, pg *Postgres, mock sqlmock.Sqlmock)
check func(t *testing.T, pg *Postgres)
}
tests := map[string][]testCaseStep{
"Success on all queries, collect all dbs (v14.4)": {
{
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
pg.dbSr = matcher.TRUE()
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpect(t, m, querySettingsMaxConnections(), dataVer140004SettingsMaxConnections)
mockExpect(t, m, querySettingsMaxLocksHeld(), dataVer140004SettingsMaxLocksHeld)
mockExpect(t, m, queryServerCurrentConnectionsUsed(), dataVer140004ServerCurrentConnections)
mockExpect(t, m, queryServerConnectionsState(), dataVer140004ServerConnectionsState)
mockExpect(t, m, queryCheckpoints(), dataVer140004Checkpoints)
mockExpect(t, m, queryServerUptime(), dataVer140004ServerUptime)
mockExpect(t, m, queryTXIDWraparound(), dataVer140004TXIDWraparound)
mockExpect(t, m, queryWALWrites(140004), dataVer140004WALWrites)
mockExpect(t, m, queryCatalogRelations(), dataVer140004CatalogRelations)
mockExpect(t, m, queryAutovacuumWorkers(), dataVer140004AutovacuumWorkers)
mockExpect(t, m, queryXactQueryRunningTime(), dataVer140004XactQueryRunningTime)
mockExpect(t, m, queryWALFiles(140004), dataVer140004WALFiles)
mockExpect(t, m, queryWALArchiveFiles(140004), dataVer140004WALArchiveFiles)
mockExpect(t, m, queryReplicationStandbyAppDelta(140004), dataVer140004ReplStandbyAppDelta)
mockExpect(t, m, queryReplicationStandbyAppLag(), dataVer140004ReplStandbyAppLag)
mockExpect(t, m, queryReplicationSlotFiles(140004), dataVer140004ReplSlotFiles)
mockExpect(t, m, queryDatabaseStats(), dataVer140004DatabaseStats)
mockExpect(t, m, queryDatabaseSize(140004), dataVer140004DatabaseSize)
mockExpect(t, m, queryDatabaseConflicts(), dataVer140004DatabaseConflicts)
mockExpect(t, m, queryDatabaseLocks(), dataVer140004DatabaseLocks)
mockExpect(t, m, queryQueryableDatabaseList(), dataVer140004QueryableDatabaseList)
mockExpect(t, m, queryStatUserTables(), dataVer140004StatUserTablesDBPostgres)
mockExpect(t, m, queryStatIOUserTables(), dataVer140004StatIOUserTablesDBPostgres)
mockExpect(t, m, queryStatUserIndexes(), dataVer140004StatUserIndexesDBPostgres)
mockExpect(t, m, queryBloat(), dataVer140004Bloat)
mockExpect(t, m, queryColumnsStats(), dataVer140004ColumnsStats)
},
check: func(t *testing.T, pg *Postgres) {
mx := pg.Collect()
expected := map[string]int64{
"autovacuum_analyze": 0,
"autovacuum_brin_summarize": 0,
"autovacuum_vacuum": 0,
"autovacuum_vacuum_analyze": 0,
"autovacuum_vacuum_freeze": 0,
"buffers_alloc": 27295744,
"buffers_backend": 0,
"buffers_backend_fsync": 0,
"buffers_checkpoint": 32768,
"buffers_clean": 0,
"catalog_relkind_I_count": 0,
"catalog_relkind_I_size": 0,
"catalog_relkind_S_count": 0,
"catalog_relkind_S_size": 0,
"catalog_relkind_c_count": 0,
"catalog_relkind_c_size": 0,
"catalog_relkind_f_count": 0,
"catalog_relkind_f_size": 0,
"catalog_relkind_i_count": 155,
"catalog_relkind_i_size": 3678208,
"catalog_relkind_m_count": 0,
"catalog_relkind_m_size": 0,
"catalog_relkind_p_count": 0,
"catalog_relkind_p_size": 0,
"catalog_relkind_r_count": 66,
"catalog_relkind_r_size": 3424256,
"catalog_relkind_t_count": 38,
"catalog_relkind_t_size": 548864,
"catalog_relkind_v_count": 137,
"catalog_relkind_v_size": 0,
"checkpoint_sync_time": 47,
"checkpoint_write_time": 167,
"checkpoints_req": 16,
"checkpoints_timed": 1814,
"databases_count": 2,
"db_postgres_blks_hit": 1221125,
"db_postgres_blks_read": 3252,
"db_postgres_blks_read_perc": 0,
"db_postgres_confl_bufferpin": 0,
"db_postgres_confl_deadlock": 0,
"db_postgres_confl_lock": 0,
"db_postgres_confl_snapshot": 0,
"db_postgres_confl_tablespace": 0,
"db_postgres_conflicts": 0,
"db_postgres_deadlocks": 0,
"db_postgres_lock_mode_AccessExclusiveLock_awaited": 0,
"db_postgres_lock_mode_AccessExclusiveLock_held": 0,
"db_postgres_lock_mode_AccessShareLock_awaited": 0,
"db_postgres_lock_mode_AccessShareLock_held": 99,
"db_postgres_lock_mode_ExclusiveLock_awaited": 0,
"db_postgres_lock_mode_ExclusiveLock_held": 0,
"db_postgres_lock_mode_RowExclusiveLock_awaited": 0,
"db_postgres_lock_mode_RowExclusiveLock_held": 99,
"db_postgres_lock_mode_RowShareLock_awaited": 0,
"db_postgres_lock_mode_RowShareLock_held": 99,
"db_postgres_lock_mode_ShareLock_awaited": 0,
"db_postgres_lock_mode_ShareLock_held": 0,
"db_postgres_lock_mode_ShareRowExclusiveLock_awaited": 0,
"db_postgres_lock_mode_ShareRowExclusiveLock_held": 0,
"db_postgres_lock_mode_ShareUpdateExclusiveLock_awaited": 0,
"db_postgres_lock_mode_ShareUpdateExclusiveLock_held": 0,
"db_postgres_numbackends": 3,
"db_postgres_numbackends_utilization": 10,
"db_postgres_size": 8758051,
"db_postgres_temp_bytes": 0,
"db_postgres_temp_files": 0,
"db_postgres_tup_deleted": 0,
"db_postgres_tup_fetched": 359833,
"db_postgres_tup_fetched_perc": 2,
"db_postgres_tup_inserted": 0,
"db_postgres_tup_returned": 13207245,
"db_postgres_tup_updated": 0,
"db_postgres_xact_commit": 1438660,
"db_postgres_xact_rollback": 70,
"db_production_blks_hit": 0,
"db_production_blks_read": 0,
"db_production_blks_read_perc": 0,
"db_production_confl_bufferpin": 0,
"db_production_confl_deadlock": 0,
"db_production_confl_lock": 0,
"db_production_confl_snapshot": 0,
"db_production_confl_tablespace": 0,
"db_production_conflicts": 0,
"db_production_deadlocks": 0,
"db_production_lock_mode_AccessExclusiveLock_awaited": 0,
"db_production_lock_mode_AccessExclusiveLock_held": 0,
"db_production_lock_mode_AccessShareLock_awaited": 0,
"db_production_lock_mode_AccessShareLock_held": 0,
"db_production_lock_mode_ExclusiveLock_awaited": 0,
"db_production_lock_mode_ExclusiveLock_held": 0,
"db_production_lock_mode_RowExclusiveLock_awaited": 0,
"db_production_lock_mode_RowExclusiveLock_held": 0,
"db_production_lock_mode_RowShareLock_awaited": 0,
"db_production_lock_mode_RowShareLock_held": 0,
"db_production_lock_mode_ShareLock_awaited": 99,
"db_production_lock_mode_ShareLock_held": 0,
"db_production_lock_mode_ShareRowExclusiveLock_awaited": 0,
"db_production_lock_mode_ShareRowExclusiveLock_held": 0,
"db_production_lock_mode_ShareUpdateExclusiveLock_awaited": 0,
"db_production_lock_mode_ShareUpdateExclusiveLock_held": 99,
"db_production_numbackends": 1,
"db_production_numbackends_utilization": 1,
"db_production_size": 8602115,
"db_production_temp_bytes": 0,
"db_production_temp_files": 0,
"db_production_tup_deleted": 0,
"db_production_tup_fetched": 0,
"db_production_tup_fetched_perc": 0,
"db_production_tup_inserted": 0,
"db_production_tup_returned": 0,
"db_production_tup_updated": 0,
"db_production_xact_commit": 0,
"db_production_xact_rollback": 0,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_myschema_size": 8192,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_myschema_usage_status_unused": 1,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_myschema_usage_status_used": 0,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_public_size": 8192,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_public_usage_status_unused": 1,
"index_myaccounts_email_key_table_myaccounts_db_postgres_schema_public_usage_status_used": 0,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_myschema_size": 8192,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_myschema_usage_status_unused": 1,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_myschema_usage_status_used": 0,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_public_size": 8192,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_public_usage_status_unused": 1,
"index_myaccounts_pkey_table_myaccounts_db_postgres_schema_public_usage_status_used": 0,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_myschema_size": 8192,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_myschema_usage_status_unused": 1,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_myschema_usage_status_used": 0,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_public_size": 8192,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_public_usage_status_unused": 1,
"index_myaccounts_username_key_table_myaccounts_db_postgres_schema_public_usage_status_used": 0,
"index_pgbench_accounts_pkey_table_pgbench_accounts_db_postgres_schema_public_bloat_size": 0,
"index_pgbench_accounts_pkey_table_pgbench_accounts_db_postgres_schema_public_bloat_size_perc": 0,
"index_pgbench_accounts_pkey_table_pgbench_accounts_db_postgres_schema_public_size": 112336896,
"index_pgbench_accounts_pkey_table_pgbench_accounts_db_postgres_schema_public_usage_status_unused": 0,
"index_pgbench_accounts_pkey_table_pgbench_accounts_db_postgres_schema_public_usage_status_used": 1,
"index_pgbench_branches_pkey_table_pgbench_branches_db_postgres_schema_public_size": 16384,
"index_pgbench_branches_pkey_table_pgbench_branches_db_postgres_schema_public_usage_status_unused": 1,
"index_pgbench_branches_pkey_table_pgbench_branches_db_postgres_schema_public_usage_status_used": 0,
"index_pgbench_tellers_pkey_table_pgbench_tellers_db_postgres_schema_public_size": 32768,
"index_pgbench_tellers_pkey_table_pgbench_tellers_db_postgres_schema_public_usage_status_unused": 1,
"index_pgbench_tellers_pkey_table_pgbench_tellers_db_postgres_schema_public_usage_status_used": 0,
"locks_utilization": 6,
"maxwritten_clean": 0,
"oldest_current_xid": 9,
"percent_towards_emergency_autovacuum": 0,
"percent_towards_wraparound": 0,
"query_running_time_hist_bucket_1": 1,
"query_running_time_hist_bucket_2": 0,
"query_running_time_hist_bucket_3": 0,
"query_running_time_hist_bucket_4": 0,
"query_running_time_hist_bucket_5": 0,
"query_running_time_hist_bucket_6": 0,
"query_running_time_hist_bucket_inf": 0,
"query_running_time_hist_count": 1,
"query_running_time_hist_sum": 0,
"repl_slot_ocean_replslot_files": 0,
"repl_slot_ocean_replslot_wal_keep": 0,
"repl_standby_app_phys-standby2_wal_flush_lag_size": 0,
"repl_standby_app_phys-standby2_wal_flush_lag_time": 0,
"repl_standby_app_phys-standby2_wal_replay_lag_size": 0,
"repl_standby_app_phys-standby2_wal_replay_lag_time": 0,
"repl_standby_app_phys-standby2_wal_sent_lag_size": 0,
"repl_standby_app_phys-standby2_wal_write_lag_size": 0,
"repl_standby_app_phys-standby2_wal_write_time": 0,
"repl_standby_app_walreceiver_wal_flush_lag_size": 2,
"repl_standby_app_walreceiver_wal_flush_lag_time": 2,
"repl_standby_app_walreceiver_wal_replay_lag_size": 2,
"repl_standby_app_walreceiver_wal_replay_lag_time": 2,
"repl_standby_app_walreceiver_wal_sent_lag_size": 2,
"repl_standby_app_walreceiver_wal_write_lag_size": 2,
"repl_standby_app_walreceiver_wal_write_time": 2,
"server_connections_available": 97,
"server_connections_state_active": 1,
"server_connections_state_disabled": 1,
"server_connections_state_fastpath_function_call": 1,
"server_connections_state_idle": 14,
"server_connections_state_idle_in_transaction": 7,
"server_connections_state_idle_in_transaction_aborted": 1,
"server_connections_used": 3,
"server_connections_utilization": 3,
"server_uptime": 499906,
"table_pgbench_accounts_db_postgres_schema_public_bloat_size": 9863168,
"table_pgbench_accounts_db_postgres_schema_public_bloat_size_perc": 1,
"table_pgbench_accounts_db_postgres_schema_public_heap_blks_hit": 224484753408,
"table_pgbench_accounts_db_postgres_schema_public_heap_blks_read": 1803882668032,
"table_pgbench_accounts_db_postgres_schema_public_heap_blks_read_perc": 88,
"table_pgbench_accounts_db_postgres_schema_public_idx_blks_hit": 7138635948032,
"table_pgbench_accounts_db_postgres_schema_public_idx_blks_read": 973310976000,
"table_pgbench_accounts_db_postgres_schema_public_idx_blks_read_perc": 11,
"table_pgbench_accounts_db_postgres_schema_public_idx_scan": 99955,
"table_pgbench_accounts_db_postgres_schema_public_idx_tup_fetch": 99955,
"table_pgbench_accounts_db_postgres_schema_public_last_analyze_ago": 377149,
"table_pgbench_accounts_db_postgres_schema_public_last_vacuum_ago": 377149,
"table_pgbench_accounts_db_postgres_schema_public_n_dead_tup": 1000048,
"table_pgbench_accounts_db_postgres_schema_public_n_dead_tup_perc": 16,
"table_pgbench_accounts_db_postgres_schema_public_n_live_tup": 5000048,
"table_pgbench_accounts_db_postgres_schema_public_n_tup_del": 0,
"table_pgbench_accounts_db_postgres_schema_public_n_tup_hot_upd": 0,
"table_pgbench_accounts_db_postgres_schema_public_n_tup_hot_upd_perc": 0,
"table_pgbench_accounts_db_postgres_schema_public_n_tup_ins": 5000000,
"table_pgbench_accounts_db_postgres_schema_public_n_tup_upd": 0,
"table_pgbench_accounts_db_postgres_schema_public_seq_scan": 2,
"table_pgbench_accounts_db_postgres_schema_public_seq_tup_read": 5000000,
"table_pgbench_accounts_db_postgres_schema_public_tidx_blks_hit": -1,
"table_pgbench_accounts_db_postgres_schema_public_tidx_blks_read": -1,
"table_pgbench_accounts_db_postgres_schema_public_tidx_blks_read_perc": 50,
"table_pgbench_accounts_db_postgres_schema_public_toast_blks_hit": -1,
"table_pgbench_accounts_db_postgres_schema_public_toast_blks_read": -1,
"table_pgbench_accounts_db_postgres_schema_public_toast_blks_read_perc": 50,
"table_pgbench_accounts_db_postgres_schema_public_total_size": 784031744,
"table_pgbench_branches_db_postgres_schema_public_heap_blks_hit": 304316416,
"table_pgbench_branches_db_postgres_schema_public_heap_blks_read": 507150336,
"table_pgbench_branches_db_postgres_schema_public_heap_blks_read_perc": 62,
"table_pgbench_branches_db_postgres_schema_public_idx_blks_hit": 101441536,
"table_pgbench_branches_db_postgres_schema_public_idx_blks_read": 101425152,
"table_pgbench_branches_db_postgres_schema_public_idx_blks_read_perc": 49,
"table_pgbench_branches_db_postgres_schema_public_idx_scan": 0,
"table_pgbench_branches_db_postgres_schema_public_idx_tup_fetch": 0,
"table_pgbench_branches_db_postgres_schema_public_last_analyze_ago": 377149,
"table_pgbench_branches_db_postgres_schema_public_last_vacuum_ago": 371719,
"table_pgbench_branches_db_postgres_schema_public_n_dead_tup": 0,
"table_pgbench_branches_db_postgres_schema_public_n_dead_tup_perc": 0,
"table_pgbench_branches_db_postgres_schema_public_n_live_tup": 50,
"table_pgbench_branches_db_postgres_schema_public_n_tup_del": 0,
"table_pgbench_branches_db_postgres_schema_public_n_tup_hot_upd": 0,
"table_pgbench_branches_db_postgres_schema_public_n_tup_hot_upd_perc": 0,
"table_pgbench_branches_db_postgres_schema_public_n_tup_ins": 50,
"table_pgbench_branches_db_postgres_schema_public_n_tup_upd": 0,
"table_pgbench_branches_db_postgres_schema_public_seq_scan": 6,
"table_pgbench_branches_db_postgres_schema_public_seq_tup_read": 300,
"table_pgbench_branches_db_postgres_schema_public_tidx_blks_hit": -1,
"table_pgbench_branches_db_postgres_schema_public_tidx_blks_read": -1,
"table_pgbench_branches_db_postgres_schema_public_tidx_blks_read_perc": 50,
"table_pgbench_branches_db_postgres_schema_public_toast_blks_hit": -1,
"table_pgbench_branches_db_postgres_schema_public_toast_blks_read": -1,
"table_pgbench_branches_db_postgres_schema_public_toast_blks_read_perc": 50,
"table_pgbench_branches_db_postgres_schema_public_total_size": 57344,
"table_pgbench_history_db_postgres_schema_public_heap_blks_hit": 0,
"table_pgbench_history_db_postgres_schema_public_heap_blks_read": 0,
"table_pgbench_history_db_postgres_schema_public_heap_blks_read_perc": 0,
"table_pgbench_history_db_postgres_schema_public_idx_blks_hit": -1,
"table_pgbench_history_db_postgres_schema_public_idx_blks_read": -1,
"table_pgbench_history_db_postgres_schema_public_idx_blks_read_perc": 50,
"table_pgbench_history_db_postgres_schema_public_idx_scan": 0,
"table_pgbench_history_db_postgres_schema_public_idx_tup_fetch": 0,
"table_pgbench_history_db_postgres_schema_public_last_analyze_ago": 377149,
"table_pgbench_history_db_postgres_schema_public_last_vacuum_ago": 377149,
"table_pgbench_history_db_postgres_schema_public_n_dead_tup": 0,
"table_pgbench_history_db_postgres_schema_public_n_dead_tup_perc": 0,
"table_pgbench_history_db_postgres_schema_public_n_live_tup": 0,
"table_pgbench_history_db_postgres_schema_public_n_tup_del": 0,
"table_pgbench_history_db_postgres_schema_public_n_tup_hot_upd": 0,
"table_pgbench_history_db_postgres_schema_public_n_tup_hot_upd_perc": 0,
"table_pgbench_history_db_postgres_schema_public_n_tup_ins": 0,
"table_pgbench_history_db_postgres_schema_public_n_tup_upd": 0,
"table_pgbench_history_db_postgres_schema_public_seq_scan": 0,
"table_pgbench_history_db_postgres_schema_public_seq_tup_read": 0,
"table_pgbench_history_db_postgres_schema_public_tidx_blks_hit": -1,
"table_pgbench_history_db_postgres_schema_public_tidx_blks_read": -1,
"table_pgbench_history_db_postgres_schema_public_tidx_blks_read_perc": 50,
"table_pgbench_history_db_postgres_schema_public_toast_blks_hit": -1,
"table_pgbench_history_db_postgres_schema_public_toast_blks_read": -1,
"table_pgbench_history_db_postgres_schema_public_toast_blks_read_perc": 50,
"table_pgbench_history_db_postgres_schema_public_total_size": 0,
"table_pgbench_tellers_db_postgres_schema_public_heap_blks_hit": 491937792,
"table_pgbench_tellers_db_postgres_schema_public_heap_blks_read": 623828992,
"table_pgbench_tellers_db_postgres_schema_public_heap_blks_read_perc": 55,
"table_pgbench_tellers_db_postgres_schema_public_idx_blks_hit": 0,
"table_pgbench_tellers_db_postgres_schema_public_idx_blks_read": 101433344,
"table_pgbench_tellers_db_postgres_schema_public_idx_blks_read_perc": 100,
"table_pgbench_tellers_db_postgres_schema_public_idx_scan": 0,
"table_pgbench_tellers_db_postgres_schema_public_idx_tup_fetch": 0,
"table_pgbench_tellers_db_postgres_schema_public_last_analyze_ago": 377149,
"table_pgbench_tellers_db_postgres_schema_public_last_vacuum_ago": 371719,
"table_pgbench_tellers_db_postgres_schema_public_n_dead_tup": 0,
"table_pgbench_tellers_db_postgres_schema_public_n_dead_tup_perc": 0,
"table_pgbench_tellers_db_postgres_schema_public_n_live_tup": 500,
"table_pgbench_tellers_db_postgres_schema_public_n_tup_del": 0,
"table_pgbench_tellers_db_postgres_schema_public_n_tup_hot_upd": 0,
"table_pgbench_tellers_db_postgres_schema_public_n_tup_hot_upd_perc": 0,
"table_pgbench_tellers_db_postgres_schema_public_n_tup_ins": 500,
"table_pgbench_tellers_db_postgres_schema_public_n_tup_upd": 0,
"table_pgbench_tellers_db_postgres_schema_public_null_columns": 1,
"table_pgbench_tellers_db_postgres_schema_public_seq_scan": 1,
"table_pgbench_tellers_db_postgres_schema_public_seq_tup_read": 500,
"table_pgbench_tellers_db_postgres_schema_public_tidx_blks_hit": -1,
"table_pgbench_tellers_db_postgres_schema_public_tidx_blks_read": -1,
"table_pgbench_tellers_db_postgres_schema_public_tidx_blks_read_perc": 50,
"table_pgbench_tellers_db_postgres_schema_public_toast_blks_hit": -1,
"table_pgbench_tellers_db_postgres_schema_public_toast_blks_read": -1,
"table_pgbench_tellers_db_postgres_schema_public_toast_blks_read_perc": 50,
"table_pgbench_tellers_db_postgres_schema_public_total_size": 90112,
"transaction_running_time_hist_bucket_1": 1,
"transaction_running_time_hist_bucket_2": 0,
"transaction_running_time_hist_bucket_3": 0,
"transaction_running_time_hist_bucket_4": 0,
"transaction_running_time_hist_bucket_5": 0,
"transaction_running_time_hist_bucket_6": 0,
"transaction_running_time_hist_bucket_inf": 7,
"transaction_running_time_hist_count": 8,
"transaction_running_time_hist_sum": 4022,
"wal_archive_files_done_count": 1,
"wal_archive_files_ready_count": 1,
"wal_recycled_files": 0,
"wal_writes": 24103144,
"wal_written_files": 1,
}
assert.Equal(t, expected, mx)
},
},
},
"Fail when querying the database version returns an error": {
{
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpectErr(m, queryServerVersion())
},
check: func(t *testing.T, pg *Postgres) {
mx := pg.Collect()
var expected map[string]int64
assert.Equal(t, expected, mx)
},
},
},
"Fail when querying settings max connections returns an error": {
{
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpectErr(m, querySettingsMaxConnections())
},
check: func(t *testing.T, pg *Postgres) {
mx := pg.Collect()
var expected map[string]int64
assert.Equal(t, expected, mx)
},
},
},
"Fail when querying the server connections returns an error": {
{
prepareMock: func(t *testing.T, pg *Postgres, m sqlmock.Sqlmock) {
mockExpect(t, m, queryServerVersion(), dataVer140004ServerVersionNum)
mockExpect(t, m, queryIsSuperUser(), dataVer140004IsSuperUserTrue)
mockExpect(t, m, queryPGIsInRecovery(), dataVer140004PGIsInRecoveryTrue)
mockExpect(t, m, querySettingsMaxConnections(), dataVer140004SettingsMaxConnections)
mockExpect(t, m, querySettingsMaxLocksHeld(), dataVer140004SettingsMaxLocksHeld)
mockExpectErr(m, queryServerCurrentConnectionsUsed())
},
check: func(t *testing.T, pg *Postgres) {
mx := pg.Collect()
var expected map[string]int64
assert.Equal(t, expected, mx)
},
},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
db, mock, err := sqlmock.New(
sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual),
)
require.NoError(t, err)
pg := New()
pg.db = db
defer func() { _ = db.Close() }()
require.NoError(t, pg.Init())
for i, step := range test {
t.Run(fmt.Sprintf("step[%d]", i), func(t *testing.T) {
step.prepareMock(t, pg, mock)
step.check(t, pg)
})
}
assert.NoError(t, mock.ExpectationsWereMet())
})
}
}
func mockExpect(t *testing.T, mock sqlmock.Sqlmock, query string, rows []byte) {
mock.ExpectQuery(query).WillReturnRows(mustMockRows(t, rows)).RowsWillBeClosed()
}
func mockExpectErr(mock sqlmock.Sqlmock, query string) {
mock.ExpectQuery(query).WillReturnError(errors.New("mock error"))
}
func mustMockRows(t *testing.T, data []byte) *sqlmock.Rows {
rows, err := prepareMockRows(data)
require.NoError(t, err)
return rows
}
func prepareMockRows(data []byte) (*sqlmock.Rows, error) {
r := bytes.NewReader(data)
sc := bufio.NewScanner(r)
var numColumns int
var rows *sqlmock.Rows
for sc.Scan() {
s := strings.TrimSpace(sc.Text())
if s == "" || strings.HasPrefix(s, "---") {
continue
}
parts := strings.Split(s, "|")
for i, v := range parts {
parts[i] = strings.TrimSpace(v)
}
if rows == nil {
numColumns = len(parts)
rows = sqlmock.NewRows(parts)
continue
}
if len(parts) != numColumns {
return nil, fmt.Errorf("prepareMockRows(): columns != values (%d/%d)", numColumns, len(parts))
}
values := make([]driver.Value, len(parts))
for i, v := range parts {
values[i] = v
}
rows.AddRow(values...)
}
if rows == nil {
return nil, errors.New("prepareMockRows(): nil rows result")
}
return rows, nil
}
|
