fix broken test after fixing db teardown to close conn

internal/db/bundb/admin_test.go

@@ -74,6 +74,7 @@ func (suite *AdminTestSuite) TestCreateInstanceAccount() {
 	// we need to take an empty db for this...
 	testrig.StandardDBTeardown(suite.db)
 	// ...with tables created but no data
+	suite.db = testrig.NewTestDB(&suite.state)
 	testrig.CreateTestTables(suite.db)
 
 	// make sure there's no instance account in the db yet

testrig/config.go

@@ -57,11 +57,11 @@ func testDefaults() config.Configuration {
 		TrustedProxies:           []string{"127.0.0.1/32", "::1"},
 		DbType:                   envStr("GTS_DB_TYPE", "sqlite"),
 		DbAddress:                envStr("GTS_DB_ADDRESS", ":memory:"),
-		DbPort:                   envInt("GTS_DB_PORT", 5432),
-		DbUser:                   envStr("GTS_DB_USER", "postgres"),
-		DbPassword:               envStr("GTS_DB_PASSWORD", "postgres"),
-		DbDatabase:               envStr("GTS_DB_DATABASE", "postgres"),
-		DbTLSMode:                envStr("GTS_DB_TLS_MODE", "disable"),
+		DbPort:                   envInt("GTS_DB_PORT", 0),
+		DbUser:                   envStr("GTS_DB_USER", ""),
+		DbPassword:               envStr("GTS_DB_PASSWORD", ""),
+		DbDatabase:               envStr("GTS_DB_DATABASE", ""),
+		DbTLSMode:                envStr("GTS_DB_TLS_MODE", ""),
 		DbTLSCACert:              envStr("GTS_DB_TLS_CA_CERT", ""),
 		DbMaxOpenConnsMultiplier: 8,
 		DbSqliteJournalMode:      "WAL",