1 files changed, 38 insertions, 0 deletions
diff --git a/test/unit/tx-utils-test.js b/test/unit/tx-utils-test.js
index 7ace1f587..a43bcfb35 100644
--- a/test/unit/tx-utils-test.js
+++ b/test/unit/tx-utils-test.js
@@ -16,6 +16,44 @@ describe('txUtils', function () {
     }))
   })
 
+  describe('#sufficientBalance', function () {
+    it('returns true if max tx cost is equal to balance.', function () {
+      const tx = {
+        'value': '0x1',
+        'gas': '0x2',
+        'gasPrice': '0x3',
+      }
+      const balance = '0x8'
+
+      const result = txUtils.sufficientBalance(tx, balance)
+      assert.ok(result, 'sufficient balance found.')
+    })
+
+    it('returns true if max tx cost is less than balance.', function () {
+      const tx = {
+        'value': '0x1',
+        'gas': '0x2',
+        'gasPrice': '0x3',
+      }
+      const balance = '0x9'
+
+      const result = txUtils.sufficientBalance(tx, balance)
+      assert.ok(result, 'sufficient balance found.')
+    })
+
+    it('returns false if max tx cost is more than balance.', function () {
+      const tx = {
+        'value': '0x1',
+        'gas': '0x2',
+        'gasPrice': '0x3',
+      }
+      const balance = '0x6'
+
+      const result = txUtils.sufficientBalance(tx, balance)
+      assert.ok(!result, 'insufficient balance found.')
+    })
+  })
+
   describe('chain Id', function () {
     it('prepares a transaction with the provided chainId', function () {
       const txParams = {