Fix unknown relayer bug (#340)

Author: cbovis

src/app/routes/v1/util/transform-fill.js

@@ -10,7 +10,7 @@ const getAssetsForFill = require('../../../../fills/get-assets-for-fill');
 const getFeesForFill = require('../../../../fills/get-fees-for-fill');
 
 const formatRelayer = relayer =>
-  relayer === undefined ? null : _.pick(relayer, 'slug', 'name', 'imageUrl');
+  relayer === null ? null : _.pick(relayer, 'slug', 'name', 'imageUrl');
 
 const transformFill = fill => {
   const assets = getAssetsForFill(fill);

src/app/routes/v1/util/transform-fill.test.js

@@ -97,7 +97,7 @@ describe('transformFill', () => {
   });
 
   it('should transform fill without relayer', () => {
-    const fill = { ...simpleFill, relayerId: undefined, relayer: undefined };
+    const fill = { ...simpleFill, relayerId: undefined, relayer: null };
     const viewModel = transformFill(fill);
 
     expect(viewModel.relayer).toBeNull();
@@ -128,7 +128,7 @@ describe('transformFill', () => {
   });
 
   it('should transform fill with unrecognised relayer', () => {
-    const fill = { ...simpleFill, relayer: undefined };
+    const fill = { ...simpleFill, relayer: null };
     const viewModel = transformFill(fill);
 
     expect(viewModel.relayer).toBeNull();

src/app/routes/v1/util/transform-fills.js

@@ -4,7 +4,7 @@ const formatFillStatus = require('../../../../fills/format-fill-status');
 const getAssetsForFill = require('../../../../fills/get-assets-for-fill');
 
 const transformRelayer = relayer =>
-  relayer === undefined ? null : _.pick(relayer, 'slug', 'name', 'imageUrl');
+  relayer === null ? null : _.pick(relayer, 'slug', 'name', 'imageUrl');
 
 const transformFill = fill => {
   const assets = getAssetsForFill(fill);