From ec91fe1e0b67e0e01308ad40a71a8d3d37f1144c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philip=20Dub=C3=A9?= <philip@peerdb.io>
Date: Wed, 8 May 2024 01:58:10 +0000
Subject: [PATCH] e2e

---
 flow/e2e/postgres/qrep_flow_pg_test.go | 54 ++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/flow/e2e/postgres/qrep_flow_pg_test.go b/flow/e2e/postgres/qrep_flow_pg_test.go
index 63a226ae13..8601bffdad 100644
--- a/flow/e2e/postgres/qrep_flow_pg_test.go
+++ b/flow/e2e/postgres/qrep_flow_pg_test.go
@@ -406,3 +406,57 @@ func (s PeerFlowE2ETestSuitePG) Test_Pause() {
 	env.Cancel()
 	e2e.RequireEnvCanceled(s.t, env)
 }
+
+func (s PeerFlowE2ETestSuitePG) TestTransform() {
+	numRows := 10
+
+	srcTable := "test_transform"
+	s.setupSourceTable(srcTable, numRows)
+
+	dstTable := "test_transformdst"
+
+	srcSchemaQualified := fmt.Sprintf("%s_%s.%s", "e2e_test", s.suffix, srcTable)
+	dstSchemaQualified := fmt.Sprintf("%s_%s.%s", "e2e_test", s.suffix, dstTable)
+
+	query := fmt.Sprintf("SELECT * FROM e2e_test_%s.%s WHERE updated_at BETWEEN {{.start}} AND {{.end}}",
+		s.suffix, srcTable)
+
+	postgresPeer := e2e.GeneratePostgresPeer()
+
+	_, err := s.Conn().Exec(context.Background(), `insert into public.scripts (name, lang, source) values
+	('pgtransform', 'lua', 'function transformRow(row) row.myreal = 1729 end') on conflict do nothing`)
+	require.NoError(s.t, err)
+
+	qrepConfig, err := e2e.CreateQRepWorkflowConfig(
+		"test_transform",
+		srcSchemaQualified,
+		dstSchemaQualified,
+		query,
+		postgresPeer,
+		"",
+		true,
+		"_PEERDB_SYNCED_AT",
+		"",
+	)
+	require.NoError(s.t, err)
+	qrepConfig.WriteMode = &protos.QRepWriteMode{
+		WriteType: protos.QRepWriteType_QREP_WRITE_MODE_OVERWRITE,
+	}
+	qrepConfig.InitialCopyOnly = false
+	qrepConfig.Script = "pgtransform"
+
+	tc := e2e.NewTemporalClient(s.t)
+	env := e2e.RunQRepFlowWorkflow(tc, qrepConfig)
+	e2e.EnvWaitFor(s.t, env, 3*time.Minute, "waiting for first sync to complete", func() bool {
+		err = s.compareCounts(dstSchemaQualified, int64(numRows))
+		return err == nil
+	})
+	require.NoError(s.t, env.Error())
+
+	var exists bool
+	err = s.Conn().QueryRow(context.Background(),
+		fmt.Sprintf("select exists(select * from e2e_test_%s.%s where myreal <> 1729)",
+			s.suffix, srcTable)).Scan(&exists)
+	require.NoError(s.t, err)
+	require.False(s.t, exists)
+}