chore(ci): clean up databases after test finishes in CI (#12702)

coderd/database/dbtestutil/postgres_test.go

@@ -0,0 +1,39 @@
+//go:build linux
+
+package dbtestutil_test
+
+import (
+	"database/sql"
+	"testing"
+
+	_ "github.com/lib/pq"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"
+
+	"github.com/coder/coder/v2/coderd/database/dbtestutil"
+)
+
+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
+
+// nolint:paralleltest
+func TestPostgres(t *testing.T) {
+	// postgres.Open() seems to be creating race conditions when run in parallel.
+	// t.Parallel()
+
+	if testing.Short() {
+		t.SkipNow()
+		return
+	}
+
+	connect, closePg, err := dbtestutil.Open()
+	require.NoError(t, err)
+	defer closePg()
+	db, err := sql.Open("postgres", connect)
+	require.NoError(t, err)
+	err = db.Ping()
+	require.NoError(t, err)
+	err = db.Close()
+	require.NoError(t, err)
+}