Add New CI Test Script for Mercury LOOPP (#11987)

* Add New Test File for Mercury LOOPP

This commit adds a new test file for mercury specific integration tests and are configured to
only run when the `integration` build flag is provided.

* remove parallel tests for plugin

.github/workflows/ci-core.yml

@@ -82,6 +82,7 @@ jobs:
           pushd $(go list -m -f "{{.Dir}}" github.com/smartcontractkit/chainlink-starknet/relayer)
           go install ./pkg/chainlink/cmd/chainlink-starknet
           popd
+          make install-mercury-loop
       - name: Increase Race Timeout
         if: github.event.schedule != ''
         run: |

core/services/ocr2/plugins/mercury/integration_plugin_test.go

@@ -0,0 +1,27 @@
+//go:build integration
+
+package mercury_test
+
+import (
+	"testing"
+
+	"github.com/smartcontractkit/chainlink/v2/core/config/env"
+)
+
+func TestIntegration_MercuryV1_Plugin(t *testing.T) {
+	t.Setenv(string(env.MercuryPlugin.Cmd), "chainlink-mercury")
+
+	integration_MercuryV1(t)
+}
+
+func TestIntegration_MercuryV2_Plugin(t *testing.T) {
+	t.Setenv(string(env.MercuryPlugin.Cmd), "chainlink-mercury")
+
+	integration_MercuryV2(t)
+}
+
+func TestIntegration_MercuryV3_Plugin(t *testing.T) {
+	t.Setenv(string(env.MercuryPlugin.Cmd), "chainlink-mercury")
+
+	integration_MercuryV3(t)
+}

core/services/ocr2/plugins/mercury/integration_test.go

@@ -128,6 +128,10 @@ func setupBlockchain(t *testing.T) (*bind.TransactOpts, *backends.SimulatedBacke
 func TestIntegration_MercuryV1(t *testing.T) {
 	t.Parallel()
 
+	integration_MercuryV1(t)
+}
+
+func integration_MercuryV1(t *testing.T) {
 	var logObservers []*observer.ObservedLogs
 	t.Cleanup(func() {
 		detectPanicLogs(t, logObservers)
@@ -466,6 +470,10 @@ func TestIntegration_MercuryV1(t *testing.T) {
 func TestIntegration_MercuryV2(t *testing.T) {
 	t.Parallel()
 
+	integration_MercuryV2(t)
+}
+
+func integration_MercuryV2(t *testing.T) {
 	var logObservers []*observer.ObservedLogs
 	t.Cleanup(func() {
 		detectPanicLogs(t, logObservers)
@@ -736,6 +744,10 @@ func TestIntegration_MercuryV2(t *testing.T) {
 func TestIntegration_MercuryV3(t *testing.T) {
 	t.Parallel()
 
+	integration_MercuryV3(t)
+}
+
+func integration_MercuryV3(t *testing.T) {
 	var logObservers []*observer.ObservedLogs
 	t.Cleanup(func() {
 		detectPanicLogs(t, logObservers)