added unit test for csv-label case'

src/ng-csv/services/csv-service.js

@@ -87,6 +87,15 @@ angular.module('ngCsv.services').
           csvContent += headerString + EOL;
         }
 
+        var arrData = [];
+
+        if (angular.isArray(responseData)) {
+          arrData = responseData;
+        }
+        else if (angular.isFunction(responseData)) {
+          arrData = responseData();
+        }
+
         // Check if using keys as labels
         if (angular.isDefined(options.label) && options.label && typeof options.label === 'boolean') {
             var encodingArray, labelString;
@@ -99,15 +108,6 @@ angular.module('ngCsv.services').
             csvContent += labelString + EOL;
         }
 
-        var arrData = [];
-
-        if (angular.isArray(responseData)) {
-          arrData = responseData;
-        }
-        else if (angular.isFunction(responseData)) {
-          arrData = responseData();
-        }
-
         angular.forEach(arrData, function (oldRow, index) {
           var row = angular.copy(arrData[index]);
           var dataString, infoArray;

test/unit/ngCsv/directives/ngCsv.js

@@ -129,6 +129,27 @@ describe('ngCsv directive', function () {
     scope.$apply();
   });
 
+  it('Creates a header row using keys if csv-label sets to true', function (done) {
+    // Compile a piece of HTML containing the directive
+    $rootScope.testDelim = [ {a:1, b:2, c:3}, {a:4, b:5, c:6} ];
+    var element = $compile(
+      '<div ng-csv="testDelim" csv-label="true" filename="custom.csv"></div>')($rootScope);
+
+    $rootScope.$digest();
+
+    var scope = element.isolateScope();
+
+    // Check that the compiled element contains the templated content
+    expect(scope.$eval(scope.data)).toEqual($rootScope.testDelim);
+
+
+    scope.buildCSV(scope.data).then(function() {
+      expect(scope.csv).toBe('a,b,c\r\n1,2,3\r\n4,5,6\r\n');
+      done();
+    });
+    scope.$apply();
+  });
+
   it('Accepts optional csv-column-order attribute (input array)', function (done) {
     $rootScope.testDelim = [ {a:1, b:2, c:3}, {a:4, b:5, c:6} ];
     $rootScope.order = [ 'b', 'a', 'c' ];