Decode proposal from bytes

.github/workflows/ci.yml

@@ -49,11 +49,11 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
         features:
-          - evm,std
+          - evm,std,scale
           - substrate,std
           - evm
         test-features:
-          - evm,std
+          - evm,std,scale
           - substrate,std
     runs-on: ${{ matrix.os }}
     # Name should be the OS name only (e.g. Linux, macOS, Windows)

proposals/src/proposal/mod.rs

@@ -142,4 +142,41 @@ impl Proposal {
     pub fn is_unsigned(&self) -> bool {
         matches!(self, Proposal::Unsigned { .. })
     }
+
+    /// Returns a boolean indicating if proposal is AnchorUpdate kind.
+    pub fn is_anchor_update_proposal(&self) -> bool {
+        match self.kind() {
+            ProposalKind::AnchorUpdate => true,
+            _ => false,
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::{Proposal, ProposalKind};
+    use scale_codec::{Decode, Encode};
+
+    #[test]
+    pub fn test_decode_proposal_from_bytes() {
+        let anchor_update_proposa_bytes = hex_literal::hex!(
+            "000000000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa010000000004"
+            "cafebabe00000001000102030405060708090a0b0c0d"
+            "0e0f101112131415161718191a1b1c1d1e1f"
+            "000000000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa010000000001"
+        );
+        let proposal = Proposal::Unsigned {
+            kind: ProposalKind::AnchorUpdate,
+            data: anchor_update_proposa_bytes.to_vec(),
+        };
+
+        let proposal_bytes = proposal.encode();
+
+        let decoded_proposal =
+            Proposal::decode(&mut proposal_bytes.as_slice()).unwrap();
+        assert_eq!(decoded_proposal.kind(), proposal.kind());
+        assert_eq!(decoded_proposal.data(), proposal.data());
+        assert_eq!(decoded_proposal.is_unsigned(), true);
+        assert_eq!(decoded_proposal.is_anchor_update_proposal(), true);
+    }
 }