Add `roundOffFloat` helper method

1 files changed, 19 insertions, 0 deletions

diff --git a/spec/javascripts/lib/utils/common_utils_spec.js b/spec/javascripts/lib/utils/common_utils_spec.js
index 41ff59949e5..71b26a315af 100644
--- a/spec/javascripts/lib/utils/common_utils_spec.js
+++ b/spec/javascripts/lib/utils/common_utils_spec.js
@@ -627,4 +627,23 @@ describe('common_utils', () => {
       });
     });
   });
+
+  describe('roundOffFloat', () => {
+    it('Rounds off decimal places of a float number with provided precision', () => {
+      expect(commonUtils.roundOffFloat(3.141592, 3)).toBe(3.142);
+    });
+
+    it('Rounds off a float number to a whole number when provided precision is zero', () => {
+      expect(commonUtils.roundOffFloat(3.141592, 0)).toBe(3);
+      expect(commonUtils.roundOffFloat(3.5, 0)).toBe(4);
+    });
+
+    it('Rounds off float number to nearest 0, 10, 100, 1000 and so on when provided precision is below 0', () => {
+      expect(commonUtils.roundOffFloat(34567.14159, -1)).toBe(34570);
+      expect(commonUtils.roundOffFloat(34567.14159, -2)).toBe(34600);
+      expect(commonUtils.roundOffFloat(34567.14159, -3)).toBe(35000);
+      expect(commonUtils.roundOffFloat(34567.14159, -4)).toBe(30000);
+      expect(commonUtils.roundOffFloat(34567.14159, -5)).toBe(0);
+    });
+  });
 });