DA Client remove interface: Part 2.5, create e2e test to validate that a blob is posted in DA layer. (#2920)

Create e2e test to validate that a blob is posted into DA.

This will verify that once the final refactor is done it still continue
working with the new client implementation.

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## Overview

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---------

Co-authored-by: tac0turtle <marko@baricevic.me>

Author: randygrok

.github/workflows/test.yml

@@ -76,6 +76,17 @@ jobs:
         uses: actions/setup-go@v6
         with:
           go-version-file: ./go.mod
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build evstack:local-dev (cached)
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: apps/testapp/Dockerfile
+          load: true
+          tags: evstack:local-dev
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
       - name: E2E Tests
         run: make test-e2e
 

scripts/build.mk

@@ -60,7 +60,7 @@ build-da:
 ## docker-build: Build Docker image for local testing
 docker-build:
 	@echo "--> Building Docker image for local testing"
-	@docker build -t evstack:local-dev .
+	@docker build -t evstack:local-dev -f apps/testapp/Dockerfile .
 	@echo "--> Docker image built: evstack:local-dev"
 	@echo "--> Checking if image exists locally..."
 	@docker images evstack:local-dev

scripts/test.mk

@@ -22,7 +22,7 @@ test-integration:
 .PHONY: test-integration
 
 ## test-e2e: Running e2e tests
-test-e2e: build build-da build-evm
+test-e2e: build build-da build-evm docker-build-if-local
 	@echo "--> Running e2e tests"
 	@cd test/e2e && go test -mod=readonly -failfast -timeout=15m -tags='e2e evm' ./... --binary=../../build/testapp --evm-binary=../../build/evm
 .PHONY: test-e2e
@@ -69,8 +69,12 @@ test-docker-upgrade-e2e:
 ## docker-build-if-local: Build Docker image if using local repository
 docker-build-if-local:
 	@if [ -z "$(EV_NODE_IMAGE_REPO)" ] || [ "$(EV_NODE_IMAGE_REPO)" = "evstack" ]; then \
-		echo "--> Local repository detected, building Docker image..."; \
-		$(MAKE) docker-build; \
+		if docker image inspect evstack:local-dev >/dev/null 2>&1; then \
+			echo "--> Found local Docker image: evstack:local-dev (skipping build)"; \
+		else \
+			echo "--> Local repository detected, building Docker image..."; \
+			$(MAKE) docker-build; \
+		fi; \
 	else \
 		echo "--> Using remote repository: $(EV_NODE_IMAGE_REPO)"; \
 	fi

test/e2e/da_client_integration_test.go

@@ -1,3 +1,5 @@
+//go:build e2e
+
 package e2e
 
 import (