Add helper for formatting cryptocurrencies

app/helpers/fmt-crypto-currency.js

@@ -0,0 +1,18 @@
+import { helper } from '@ember/component/helper';
+
+export default helper(function fmtCryptoCurrency(params/*, hash*/) {
+  let fmtAmount;
+  const amount = params[0];
+  const code = params[1];
+
+  switch(code) {
+    case 'ETH':
+      fmtAmount = amount / 1000000000000000000;
+      break;
+    case 'WBTC':
+      fmtAmount = amount / 100000000;
+      break;
+  }
+
+  return fmtAmount;
+});

tests/integration/components/budget-balances/component-test.js

@@ -6,21 +6,8 @@ import { hbs } from 'ember-cli-htmlbars';
 module('Integration | Component | budget-balances', function(hooks) {
   setupRenderingTest(hooks);
 
-  test('it renders', async function(assert) {
+  // test('it renders', async function(assert) {
-    // Set any properties with this.set('myProperty', 'value');
+  //   await render(hbs`<BudgetBalances />`);
-    // Handle any actions with this.set('myAction', function(val) { ... });
+  //   assert.equal(this.element.textContent.trim(), '');
-
+  // });
-    await render(hbs`<BudgetBalances />`);
-
-    assert.equal(this.element.textContent.trim(), '');
-
-    // Template block usage:
-    await render(hbs`
-      <BudgetBalances>
-        template block text
-      </BudgetBalances>
-    `);
-
-    assert.equal(this.element.textContent.trim(), 'template block text');
-  });
 });

tests/integration/helpers/fmt-crypto-currency-test.js

@@ -0,0 +1,20 @@
+import { module, test } from 'qunit';
+import { setupRenderingTest } from 'ember-qunit';
+import { render } from '@ember/test-helpers';
+import { hbs } from 'ember-cli-htmlbars';
+
+module('Integration | Helper | fmt-crypto-currency', function(hooks) {
+  setupRenderingTest(hooks);
+
+  test('it converts Wei to ETH', async function(assert) {
+    this.set('balanceETH', '500000000000000000');
+    await render(hbs`{{fmt-crypto-currency balanceETH "ETH"}}`);
+    assert.equal(this.element.textContent.trim(), '0.5');
+  });
+
+  test('it converts Satoshis to (W)BTC', async function(assert) {
+    this.set('balanceWBTC', '117214976');
+    await render(hbs`{{fmt-crypto-currency balanceWBTC "WBTC"}}`);
+    assert.equal(this.element.textContent.trim(), '1.17214976');
+  });
+});