1 files changed, 51 insertions, 0 deletions
diff --git a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js
new file mode 100644
index 00000000..4d2447c3
--- /dev/null
+++ b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js
@@ -0,0 +1,51 @@
+import assert from 'assert'
+import proxyquire from 'proxyquire'
+import sinon from 'sinon'
+
+import {
+  REQUIRED_ERROR,
+  INVALID_RECIPIENT_ADDRESS_ERROR,
+} from '../../../send.constants'
+
+const stubs = {
+  isValidAddress: sinon.stub().callsFake(to => Boolean(to.match(/^[0xabcdef123456798]+$/))),
+}
+
+const toRowUtils = proxyquire('../send-to-row.utils.js', {
+  '../../../../util': {
+    isValidAddress: stubs.isValidAddress,
+  },
+})
+const {
+  getToErrorObject,
+} = toRowUtils
+
+describe('send-to-row utils', () => {
+
+  describe('getToErrorObject()', () => {
+    it('should return a required error if to is falsy', () => {
+      assert.deepEqual(getToErrorObject(null), {
+        to: REQUIRED_ERROR,
+      })
+    })
+
+    it('should return an invalid recipient error if to is truthy but invalid', () => {
+      assert.deepEqual(getToErrorObject('mockInvalidTo'), {
+        to: INVALID_RECIPIENT_ADDRESS_ERROR,
+      })
+    })
+
+    it('should return null if to is truthy and valid', () => {
+      assert.deepEqual(getToErrorObject('0xabc123'), {
+        to: null,
+      })
+    })
+
+    it('should return the passed error if to is truthy but invalid if to is truthy and valid', () => {
+      assert.deepEqual(getToErrorObject('invalid #$ 345878', 'someExplicitError'), {
+        to: 'someExplicitError',
+      })
+    })
+  })
+
+})