test: add E2E test infrastructure and helpers

.config/nextest.toml

@@ -0,0 +1,21 @@
+[profile.default]
+slow-timeout = { period = "30s", terminate-after = 4 }
+
+# E2E integration tests spawn full nodes — give them more time
+[[profile.default.overrides]]
+filter = "package(morph-node) & binary(it)"
+slow-timeout = { period = "120s", terminate-after = 3 }
+
+[profile.ci]
+test-threads = "num-cpus"
+retries = { backoff = "exponential", count = 2, delay = "2s", jitter = true }
+fail-fast = false
+slow-timeout = { period = "30s", terminate-after = 4 }
+
+# E2E integration tests spawn full nodes — each needs exclusive MDBX resources.
+# threads-required = 2 means nextest counts each as needing 2 of the test-threads
+# slots, so only 1 runs at a time on CI (2 slots / 2 required = 1 concurrent).
+[[profile.ci.overrides]]
+filter = "package(morph-node) & binary(it)"
+threads-required = 2
+slow-timeout = { period = "120s", terminate-after = 3 }

.github/workflows/build.yml

@@ -9,6 +9,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -D warnings

.github/workflows/lint.yml

@@ -9,6 +9,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
 
@@ -48,3 +52,5 @@ jobs:
       - name: Run Clippy
         run: cargo clippy --all --all-targets -- -D warnings
 
+      - name: Run Clippy for feature-gated integration tests
+        run: cargo clippy -p morph-node --test it --features test-utils -- -D warnings

.github/workflows/test.yml

@@ -9,8 +9,13 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
+  RUST_MIN_STACK: 8388608
 
 jobs:
   test:
@@ -28,8 +33,13 @@ jobs:
         with:
           cache-on-failure: true
 
+      - name: Install nextest
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-nextest
+
       - name: Run tests
-        run: cargo test --all --verbose
+        run: cargo nextest run --profile ci --workspace
 
   doc-test:
     name: Doc Tests
@@ -49,3 +59,26 @@ jobs:
       - name: Run doc tests
         run: cargo test --doc --all --verbose
 
+  e2e:
+    name: E2E Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust build artifacts
+        uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+
+      - name: Install nextest
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-nextest
+
+      - name: Run E2E tests
+        run: cargo nextest run --profile ci -p morph-node --test it --features test-utils

.gitignore

@@ -4,3 +4,4 @@
 
 CLAUDE.md
 
+.worktrees/

Cargo.toml

@@ -185,3 +185,5 @@ pyroscope_pprofrs = "0.2.10"
 [patch.crates-io]
 vergen = { git = "https://github.com/rustyhorde/vergen", rev = "a43c276d2b68d05832a429cc4540755541ca4950" }
 vergen-lib = { git = "https://github.com/rustyhorde/vergen", rev = "a43c276d2b68d05832a429cc4540755541ca4950" }
+
+