1 files changed, 24 insertions, 0 deletions
diff --git a/test/unit/tx-gas-util-test.js b/test/unit/tx-gas-util-test.js
index d9a12d1c3..15d412c72 100644
--- a/test/unit/tx-gas-util-test.js
+++ b/test/unit/tx-gas-util-test.js
@@ -29,4 +29,28 @@ describe('Tx Gas Util', function () {
     }
     assert.throws(() => { txGasUtil.validateRecipient(zeroRecipientTxParams) }, Error, 'Invalid recipient address')
   })
+
+  it('should error when from is not a hex string', function () {
+
+    // where from is undefined
+    const txParams = {}
+    assert.throws(() => { txGasUtil.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)
+
+    // where from is array
+    txParams.from = []
+    assert.throws(() => { txGasUtil.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)
+
+    // where from is a object
+    txParams.from = {}
+    assert.throws(() => { txGasUtil.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)
+
+    // where from is a invalid address
+    txParams.from = 'im going to fail'
+    assert.throws(() => { txGasUtil.validateFrom(txParams) }, Error, `Invalid from address`)
+
+    // should run
+    txParams.from ='0x1678a085c290ebd122dc42cba69373b5953b831d'
+    txGasUtil.validateFrom(txParams)
+    })
+
 })