Prevent send to token (#6051)

* check contact metadata

* check for tokens in state

* tests

* update tests

* validation only if sending tokens

* container test

3 files changed, 40 insertions, 0 deletions

diff --git a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
index dfce7652f..95efdd7cc 100644
--- a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
+++ b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
@@ -24,6 +24,7 @@ proxyquire('../send-to-row.container.js', {
   },
   '../../send.selectors.js': {
     getCurrentNetwork: (s) => `mockNetwork:${s}`,
+    getSelectedToken: (s) => `mockSelectedToken:${s}`,
     getSendHexData: (s) => s,
     getSendTo: (s) => `mockTo:${s}`,
     getSendToAccounts: (s) => `mockToAccounts:${s}`,
@@ -31,6 +32,7 @@ proxyquire('../send-to-row.container.js', {
   './send-to-row.selectors.js': {
     getToDropdownOpen: (s) => `mockToDropdownOpen:${s}`,
     sendToIsInError: (s) => `mockInError:${s}`,
+    getTokens: (s) => `mockTokens:${s}`,
   },
   '../../../../actions': actionSpies,
   '../../../../ducks/send.duck': duckActionSpies,
@@ -45,9 +47,11 @@ describe('send-to-row container', () => {
         hasHexData: true,
         inError: 'mockInError:mockState',
         network: 'mockNetwork:mockState',
+        selectedToken: 'mockSelectedToken:mockState',
         to: 'mockTo:mockState',
         toAccounts: 'mockToAccounts:mockState',
         toDropdownOpen: 'mockToDropdownOpen:mockState',
+        tokens: 'mockTokens:mockState',
       })
     })
 
diff --git a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-selectors.test.js b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-selectors.test.js
index 122ad3265..0fa342d1e 100644
--- a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-selectors.test.js
+++ b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-selectors.test.js
@@ -1,6 +1,7 @@
 import assert from 'assert'
 import {
   getToDropdownOpen,
+  getTokens,
   sendToIsInError,
 } from '../send-to-row.selectors.js'
 
@@ -44,4 +45,15 @@ describe('send-to-row selectors', () => {
     })
   })
 
+  describe('getTokens()', () => {
+    it('should return empty array if no tokens in state', () => {
+      const state = {
+        metamask: {
+          tokens: [],
+        },
+      }
+
+      assert.deepStrictEqual(getTokens(state), [])
+    })
+  })
 })
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
index c779aeb76..8d4f26e15 100644
--- 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
@@ -5,6 +5,7 @@ import sinon from 'sinon'
 import {
   REQUIRED_ERROR,
   INVALID_RECIPIENT_ADDRESS_ERROR,
+  KNOWN_RECIPIENT_ADDRESS_ERROR,
 } from '../../../send.constants'
 
 const stubs = {
@@ -52,6 +53,29 @@ describe('send-to-row utils', () => {
         to: 'someExplicitError',
       })
     })
+
+    it('should return a known address recipient if to is truthy but part of state tokens', () => {
+      assert.deepEqual(getToErrorObject('0xabc123', undefined, false, [{'address': '0xabc123'}], {'address': '0xabc123'}), {
+        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
+      })
+    })
+
+    it('should null if to is truthy part of tokens but selectedToken falsy', () => {
+      assert.deepEqual(getToErrorObject('0xabc123', undefined, false, [{'address': '0xabc123'}]), {
+        to: null,
+      })
+    })
+
+    it('should return a known address recipient if to is truthy but part of contract metadata', () => {
+      assert.deepEqual(getToErrorObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', undefined, false, [{'address': '0xabc123'}], {'address': '0xabc123'}), {
+        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
+      })
+    })
+    it('should null if to is truthy part of contract metadata but selectedToken falsy', () => {
+      assert.deepEqual(getToErrorObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', undefined, false, [{'address': '0xabc123'}], {'address': '0xabc123'}), {
+        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
+      })
+    })
   })
 
 })