fix(numberFilter): always convert scientific notation to decimal

Previously, the number filter would format small and large numbers
as scientific notation. It now uses toFixed() to ensure that all
requested digits are shown.

2 files changed, 23 insertions, 3 deletions

diff --git a/src/ng/filter/filters.js b/src/ng/filter/filters.js
index a3c38014..f69f65d3 100644
--- a/src/ng/filter/filters.js
+++ b/src/ng/filter/filters.js
@@ -171,6 +171,11 @@ function formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {
     }
 
     if (fractionSize && fractionSize !== "0") formatedText += decimalSep + fraction.substr(0, fractionSize);
+  } else {
+
+    if (fractionSize > 0 && number > -1 && number < 1) {
+      formatedText = number.toFixed(fractionSize);
+    }
   }
 
   parts.push(isNegative ? pattern.negPre : pattern.posPre);
diff --git a/test/ng/filter/filtersSpec.js b/test/ng/filter/filtersSpec.js
index d60db9de..abe180df 100644
--- a/test/ng/filter/filtersSpec.js
+++ b/test/ng/filter/filtersSpec.js
@@ -145,9 +145,24 @@ describe('filters', function() {
       expect(number(1234.567, 2)).toEqual("1,234.57");
     });
 
-    it('should filter exponential numbers', function() {
-      expect(number(1e50, 0)).toEqual('1e+50');
-      expect(number(-2e50, 2)).toEqual('-2e+50');
+    it('should filter exponentially large numbers', function() {
+      expect(number(1e50)).toEqual('1e+50');
+      expect(number(-2e100)).toEqual('-2e+100');
+    });
+
+    it('should ignore fraction sizes for large numbers', function() {
+      expect(number(1e50, 2)).toEqual('1e+50');
+      expect(number(-2e100, 5)).toEqual('-2e+100');
+    });
+
+    it('should filter exponentially small numbers', function() {
+      expect(number(1e-50, 0)).toEqual('0');
+      expect(number(1e-6, 6)).toEqual('0.000001');
+      expect(number(1e-7, 6)).toEqual('0.000000');
+
+      expect(number(-1e-50, 0)).toEqual('-0');
+      expect(number(-1e-6, 6)).toEqual('-0.000001');
+      expect(number(-1e-7, 6)).toEqual('-0.000000');
     });
   });