ci: break out integration tests from unit (#2369)

<!--
Please read and fill out this form before submitting your PR.

Please make sure you have reviewed our contributors guide before
submitting your
first PR.

NOTE: PR titles should follow semantic commits:
https://www.conventionalcommits.org/en/v1.0.0/
-->

## Overview

This pr splits the unit tests from integration in node. this allows the
integration tests to have a custom job for integration test as the
integration tests were flaky


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Added new commands to run integration tests and generate integration
test coverage reports.

- **Refactor**
- Updated test and coverage commands for improved integration test
handling and coverage reporting.
- Adjusted test job workflow to separate unit and integration test
coverage, with combined reporting.

- **Chores**
- Introduced build tags and linter directives to better organize test
files and suppress unused code warnings.
- Improved test isolation by using separate in-memory datastores during
service restarts.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: tac0turtle <you@example.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: 3 people

.github/workflows/test.yml

@@ -76,14 +76,34 @@ jobs:
           go-version-file: ./go.mod
       - name: Run unit test
         run: make test-cover
-      - name: upload coverage report
-        uses: codecov/codecov-action@v5.4.3
+      - name: Upload unit test coverage report
+        uses: actions/upload-artifact@v4
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          file: ./coverage.txt
+          name: unit-test-coverage-report-${{ github.sha }}
+          path: ./coverage.txt
+
+  integration_test:
+    name: Run Integration Tests
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+      - name: set up go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: ./go.mod
+      - name: Run integration test
+        run: make test-integration-cover
+      - name: Upload integration test coverage report
+        uses: actions/upload-artifact@v4
+        with:
+          name: integration-test-coverage-report-${{ github.sha }}
+          path: ./node/coverage.txt
 
   e2e-tests:
     name: Run E2E System Tests
+    needs: build_all-apps
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -96,6 +116,7 @@ jobs:
 
   evm-tests:
     name: Run EVM Execution Tests
+    needs: build_all-apps
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -105,3 +126,29 @@ jobs:
           go-version-file: ./go.mod
       - name: EVM Tests
         run: make test-evm
+
+  combine_and_upload_coverage:
+    name: Combine and Upload Coverage
+    needs: [unit_test, integration_test]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: read
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download unit test coverage report
+        uses: actions/download-artifact@v4
+        with:
+          name: unit-test-coverage-report-${{ github.sha }}
+          path: ./unit-coverage
+      - name: Download integration test coverage report
+        uses: actions/download-artifact@v4
+        with:
+          name: integration-test-coverage-report-${{ github.sha }}
+          path: ./integration-coverage
+      - name: Upload combined coverage report
+        uses: codecov/codecov-action@v5.4.3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./unit-coverage/coverage.txt,./integration-coverage/coverage.txt
+          flags: combined

node/execution_test.go

@@ -1,3 +1,5 @@
+//go:build !integration
+
 package node
 
 import (

node/full_node_integration_test.go

@@ -1,3 +1,5 @@
+//go:build integration
+
 package node
 
 import (

node/full_node_test.go

@@ -1,3 +1,5 @@
+//go:build !integration
+
 package node
 
 import (

node/helpers.go

@@ -1,3 +1,4 @@
+//nolint:unused
 package node
 
 import (

node/helpers_test.go

@@ -1,3 +1,4 @@
+//nolint:unused
 package node
 
 import (

node/single_sequencer_integration_test.go

@@ -1,3 +1,5 @@
+//go:build integration
+
 package node
 
 import (

node/single_sequencer_test.go

@@ -1,3 +1,5 @@
+//go:build !integration
+
 package node
 
 import (

scripts/test.mk

@@ -7,21 +7,26 @@ clean-testcache:
 ## test: Running unit tests for all go.mods
 test:
 	@echo "--> Running unit tests"
-	@go run -tags=run scripts/test.go
+	@go run -tags='run integration' scripts/test.go
 .PHONY: test
 
+## test-e2e: Running e2e tests
+test-integration: 
+	@echo "--> Running e2e tests"
+	@cd node && go test -mod=readonly -failfast -timeout=15m -tags='integration' ./... 
+.PHONY: test-integration
+
 ## test-e2e: Running e2e tests
 test-e2e: build build-da build-evm-single
 	@echo "--> Running e2e tests"
 	@cd test/e2e && go test -mod=readonly -failfast -timeout=15m -tags='e2e evm' ./... --binary=$(CURDIR)/build/testapp --evm-binary=$(CURDIR)/build/evm-single
 .PHONY: test-e2e
 
-## cover: generate to code coverage report.
-cover:
-	@echo "--> Generating Code Coverage"
-	@go install github.com/ory/go-acc@latest
-	@go-acc -o coverage.txt ./...
-.PHONY: cover
+## test-integration-cover: generate code coverage report for integration tests.
+test-integration-cover:
+	@echo "--> Running integration tests with coverage"
+	@cd node && go test -mod=readonly -failfast -timeout=15m -tags='integration' -coverprofile=coverage.txt -covermode=atomic ./...
+.PHONY: test-integration-cover
 
 ## test-cover: generate code coverage report.
 test-cover: