From d7d6cd51914963902c583f20743009345f077bbb Mon Sep 17 00:00:00 2001
From: Tankred Hase <mail@tankredhase.de>
Date: Wed, 18 Jul 2018 18:35:43 +0200
Subject: [PATCH] Fix bug where number smaller than 100 SAT would displayed in
 exponent format

---
 src/helper.js            |  6 +++++-
 test/unit/helper.spec.js | 20 ++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/helper.js b/src/helper.js
index 49d1c470a..39a24c4fb 100644
--- a/src/helper.js
+++ b/src/helper.js
@@ -82,7 +82,11 @@ export const toAmount = (satoshis, unit) => {
   if (!Number.isInteger(satoshis) || !UNITS[unit]) {
     throw new Error('Invalid input!');
   }
-  return (satoshis / UNITS[unit].denominator).toString();
+  const num = satoshis / UNITS[unit].denominator;
+  return num.toLocaleString('en-US', {
+    useGrouping: false,
+    maximumFractionDigits: 8,
+  });
 };
 
 /**
diff --git a/test/unit/helper.spec.js b/test/unit/helper.spec.js
index 8ad6c81ca..84ab60c57 100644
--- a/test/unit/helper.spec.js
+++ b/test/unit/helper.spec.js
@@ -275,6 +275,26 @@ describe('Helpers Unit Tests', () => {
       const num = helpers.toAmount(0, 'btc');
       expect(num, 'to equal', '0');
     });
+
+    it('should work for 1', () => {
+      const num = helpers.toAmount(1, 'btc');
+      expect(num, 'to equal', '0.00000001');
+    });
+
+    it('should work for 10', () => {
+      const num = helpers.toAmount(10, 'btc');
+      expect(num, 'to equal', '0.0000001');
+    });
+
+    it('should work for 100', () => {
+      const num = helpers.toAmount(100, 'btc');
+      expect(num, 'to equal', '0.000001');
+    });
+
+    it('should work for 1000', () => {
+      const num = helpers.toAmount(1000, 'btc');
+      expect(num, 'to equal', '0.00001');
+    });
   });
 
   describe('calculateExchangeRate()', () => {