ci: add rust_ci.yaml github workflow

.github/workflows/rust_ci.yaml

@@ -0,0 +1,132 @@
+name: Rust CI
+
+on:
+  push:
+    branches: [master]
+  merge_group:
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  cargo-tests:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    name: test
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: taiki-e/install-action@just
+      - name: Install Rust stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+      - uses: taiki-e/install-action@nextest
+      - name: cargo test
+        run: just test
+  cargo-lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    strategy:
+      matrix:
+        # TODO: add back cannon and asterisc once we are using them
+        # See https://github.com/Layr-Labs/kona/blob/main/.github/workflows/rust_ci.yaml
+        target: ["native"]
+    name: lint-${{ matrix.target }}
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: taiki-e/install-action@just
+      - name: Install Rust nightly toolchain
+        uses: dtolnay/rust-toolchain@nightly
+        with:
+          components: rustfmt, clippy
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+          prefix-key: ${{ matrix.target }}
+      - name: Log into ghcr
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: fmt + lint
+        run: just lint-${{ matrix.target }}
+      - name: chown target
+        run: |
+          sudo chown -R $(id -u):$(id -g) ./target
+  cargo-build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    strategy:
+      matrix:
+        # TODO: add back cannon and asterisc once we are using them
+        # See https://github.com/Layr-Labs/kona/blob/main/.github/workflows/rust_ci.yaml
+        target: ["native"]
+    name: build-${{ matrix.target }}
+    continue-on-error: true
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: taiki-e/install-action@just
+      - name: Install Rust stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+          prefix-key: ${{ matrix.target }}
+      - name: Log into ghcr
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: build
+        run: just build-${{ matrix.target }}
+      - name: chown target
+        run: |
+          sudo chown -R $(id -u):$(id -g) ./target
+  cargo-doc:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: taiki-e/install-action@just
+      - name: Install Rust stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+      - name: doclint
+        run: just lint-docs
+      - name: doctest
+        run: just test-docs
+  cargo-hack:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: taiki-e/install-action@just
+      - name: Install Rust stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - uses: taiki-e/install-action@cargo-hack
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+      - name: cargo hack
+        run: just hack

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "2"
-members = ["bin/*"]
+members = ["bin/*", "crates/*"]
 
 [workspace.dependencies]
 # Workspace

crates/eigenda/src/eigenda_data.rs

@@ -17,3 +17,35 @@ impl EigenDABlobData {
         Ok(self.blob.clone())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use alloc::vec;
+    use alloy_primitives::Bytes;
+
+    #[test]
+    fn test_decode_success() {
+        let data = EigenDABlobData {
+            blob: Bytes::from(vec![1, 2, 3, 4]),
+        };
+        let result = data.decode();
+        assert!(result.is_ok());
+        assert_eq!(result.unwrap(), Bytes::from(vec![1, 2, 3, 4]));
+    }
+
+    #[test]
+    fn test_decode_empty_blob() {
+        let data = EigenDABlobData {
+            blob: Bytes::from(vec![]),
+        };
+        let result = data.decode();
+        assert!(result.is_ok());
+        assert_eq!(result.unwrap(), Bytes::from(vec![]));
+    }
+
+    #[test]
+    fn test_decode_invalid_blob() {
+        // TODO: implement this once decode actually does something
+    }
+}