test: added UT

Signed-off-by: Logan Nguyen <logan.nguyen@swirldslabs.com>
hashgraph · May 14, 2024 · beea682 · beea682
1 parent 5e8858d
commit beea682
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/packages/relay/src/formatters.ts b/packages/relay/src/formatters.ts
@@ -147,7 +147,7 @@ const formatContractResult = (cr: any) => {
   const commonFields = {
     blockHash: toHash32(cr.block_hash),
     blockNumber: nullableNumberTo0x(cr.block_number),
-    chainId: cr.chain_id === '0x' ? undefined : cr.chain_id,
+    chainId: cr.chain_id === EMPTY_HEX ? undefined : cr.chain_id,
     from: cr.from.substring(0, 42),
     gas: nanOrNumberTo0x(cr.gas_used),
     gasPrice: toNullIfEmptyHex(cr.gas_price),

diff --git a/packages/relay/tests/lib/formatters.spec.ts b/packages/relay/tests/lib/formatters.spec.ts
@@ -252,6 +252,11 @@ describe('Formatters', () => {
       expect(formattedResult.yParity).to.equal('0x0');
       expect(formattedResult.value).to.equal('0x0');
     });
+
+    it('Should not include chainId field for legacy EIP155 transaction (tx.chainId=0x0)', () => {
+      const formattedResult: any = formatContractResult({ ...contractResult, chain_id: '0x' });
+      expect(formattedResult.chainId).to.be.undefined;
+    });
   });
 
   describe('prepend0x', () => {