update date_range name

Author: steveoni

src/danfojs-browser/tests/core/daterange.test.js

@@ -1,7 +1,7 @@
-describe("dfd.date_range", function(){
+describe("dfd.dateRange", function(){
 
   // it("Obtain date between start and end specified", function(){
-  //   let d = dfd.date_range({start:'2018-04-24',end:'2018-04-27'})
+  //   let d = dfd.dateRange({start:'2018-04-24',end:'2018-04-27'})
   //   let rslt = [
   //     '4/24/2018, 1:00:00 AM',
   //     '4/25/2018, 1:00:00 AM',
@@ -11,7 +11,7 @@ describe("dfd.date_range", function(){
   //   assert.deepEqual(d,rslt)
   // });
   it("Obtain date between start with end not specified, but period and freq specified", function(){
-    let d = dfd.date_range({ start:'1/1/2018', period:5, freq:'M' });
+    let d = dfd.dateRange({ start:'1/1/2018', period:5, freq:'M' });
     let rslt = [
       '1/1/2018, 12:00:00 AM',
       '2/1/2018, 12:00:00 AM',
@@ -22,7 +22,7 @@ describe("dfd.date_range", function(){
     assert.deepEqual(d, rslt);
   });
   it("Obtain date between start with end not specified, but period and freq specified, plus offset", function(){
-    let d = dfd.date_range({ start:'1/1/2018', period:5, freq:'3M' });
+    let d = dfd.dateRange({ start:'1/1/2018', period:5, freq:'3M' });
     let rslt = [
       '1/1/2018, 12:00:00 AM',
       '4/1/2018, 12:00:00 AM',
@@ -33,7 +33,7 @@ describe("dfd.date_range", function(){
     assert.deepEqual(d, rslt);
   });
   it("Obtain date between start with end not specified, but period and freq specified, plus offset, longer freq", function(){
-    let d = dfd.date_range({ start:'1/1/2018', period:5, freq:'35m' });
+    let d = dfd.dateRange({ start:'1/1/2018', period:5, freq:'35m' });
     let rslt = [
       "1/1/2018, 12:00:00 AM",
       "1/1/2018, 12:35:00 AM",
@@ -44,7 +44,7 @@ describe("dfd.date_range", function(){
     assert.deepEqual(d, rslt);
   });
   it("Obtain date range with start not specified but end and period is given", function(){
-    let d = dfd.date_range({ end:'1/1/2018', period:8 });
+    let d = dfd.dateRange({ end:'1/1/2018', period:8 });
     let rslt = [
       '12/25/2017, 12:00:00 AM',
       '12/26/2017, 12:00:00 AM',
@@ -58,17 +58,17 @@ describe("dfd.date_range", function(){
     assert.deepEqual(d, rslt);
   });
   it("inputing wrong freq", function(){
-    assert.throws(function () { dfd.date_range({ end:'1/1/2018', period:8, freq:"d" }); }, Error, 'invalid freq d');
+    assert.throws(function () { dfd.dateRange({ end:'1/1/2018', period:8, freq:"d" }); }, Error, 'invalid freq d');
   });
   it("inputing wrong freq with offset", function(){
-    assert.throws(function () { dfd.date_range({ end:'1/1/2018', period:8, freq:"4d" }); }, Error, 'invalid freq d');
+    assert.throws(function () { dfd.dateRange({ end:'1/1/2018', period:8, freq:"4d" }); }, Error, 'invalid freq d');
   });
   it("inputing wrong freq offset", function(){
-    assert.throws(function () { dfd.date_range({ end:'1/1/2018', period:8, freq:"abcm" }); }, Error, 'invalid freq offset abc');
+    assert.throws(function () { dfd.dateRange({ end:'1/1/2018', period:8, freq:"abcm" }); }, Error, 'invalid freq offset abc');
   });
   // it("Obtain date between start and end specified with different month", function(){
 
-  //   let d = dfd.date_range({start:'2018-04-24',end:'2018-05-27'})
+  //   let d = dfd.dateRange({start:'2018-04-24',end:'2018-05-27'})
   //   let rslt = [
   //     '4/24/2018, 1:00:00 AM',
   //     '4/25/2018, 1:00:00 AM',