1 files changed, 81 insertions, 0 deletions
diff --git a/test/unit/app/controllers/currency-controller-test.js b/test/unit/app/controllers/currency-controller-test.js
new file mode 100644
index 000000000..1941d1c43
--- /dev/null
+++ b/test/unit/app/controllers/currency-controller-test.js
@@ -0,0 +1,81 @@
+// polyfill fetch
+global.fetch = global.fetch || require('isomorphic-fetch')
+
+const assert = require('assert')
+const nock = require('nock')
+const CurrencyController = require('../../../../app/scripts/controllers/currency')
+
+describe('currency-controller', function () {
+  var currencyController
+
+  beforeEach(function () {
+    currencyController = new CurrencyController()
+  })
+
+  describe('currency conversions', function () {
+    describe('#setCurrentCurrency', function () {
+      it('should return USD as default', function () {
+        assert.equal(currencyController.getCurrentCurrency(), 'usd')
+      })
+
+      it('should be able to set to other currency', function () {
+        assert.equal(currencyController.getCurrentCurrency(), 'usd')
+        currencyController.setCurrentCurrency('JPY')
+        var result = currencyController.getCurrentCurrency()
+        assert.equal(result, 'JPY')
+      })
+    })
+
+    describe('#getConversionRate', function () {
+      it('should return undefined if non-existent', function () {
+        var result = currencyController.getConversionRate()
+        assert.ok(!result)
+      })
+    })
+
+    describe('#updateConversionRate', function () {
+      it('should retrieve an update for ETH to USD and set it in memory', function (done) {
+        this.timeout(15000)
+        nock('https://api.infura.io')
+          .get('/v1/ticker/ethusd')
+          .reply(200, '{"base": "ETH", "quote": "USD", "bid": 288.45, "ask": 288.46, "volume": 112888.17569277, "exchange": "bitfinex", "total_volume": 272175.00106721005, "num_exchanges": 8, "timestamp": 1506444677}')
+
+        assert.equal(currencyController.getConversionRate(), 0)
+        currencyController.setCurrentCurrency('usd')
+        currencyController.updateConversionRate()
+        .then(function () {
+          var result = currencyController.getConversionRate()
+          assert.equal(typeof result, 'number')
+          done()
+        }).catch(function (err) {
+          done(err)
+        })
+      })
+
+      it('should work for JPY as well.', function () {
+        this.timeout(15000)
+        assert.equal(currencyController.getConversionRate(), 0)
+
+        nock('https://api.infura.io')
+          .get('/v1/ticker/ethjpy')
+          .reply(200, '{"base": "ETH", "quote": "JPY", "bid": 32300.0, "ask": 32400.0, "volume": 247.4616071, "exchange": "kraken", "total_volume": 247.4616071, "num_exchanges": 1, "timestamp": 1506444676}')
+
+
+        var promise = new Promise(
+          function (resolve, reject) {
+            currencyController.setCurrentCurrency('jpy')
+            currencyController.updateConversionRate().then(function () {
+              resolve()
+            })
+          })
+
+        promise.then(function () {
+          var result = currencyController.getConversionRate()
+          assert.equal(typeof result, 'number')
+        }).catch(function (done, err) {
+          done(err)
+        })
+      })
+    })
+  })
+})