use d3.selectAll().size() to count number of items

Author: etpinard

test/jasmine/tests/plot_interact_test.js

@@ -21,17 +21,17 @@ describe('Test plot structure', function() {
 
             it('has one *subplot xy* node', function() {
                 var nodes = d3.selectAll('g.subplot.xy');
-                expect(nodes[0].length).toEqual(1);
+                expect(nodes.size()).toEqual(1);
             });
 
             it('has one *scatterlayer* node', function() {
                 var nodes = d3.selectAll('g.scatterlayer');
-                expect(nodes[0].length).toEqual(1);
+                expect(nodes.size()).toEqual(1);
             });
 
             it('has as many *trace scatter* nodes as there are traces', function() {
                 var nodes = d3.selectAll('g.trace.scatter');
-                expect(nodes[0].length).toEqual(mock.data.length);
+                expect(nodes.size()).toEqual(mock.data.length);
             });
 
             it('has as many *point* nodes as there are traces', function() {
@@ -42,7 +42,7 @@ describe('Test plot structure', function() {
                     Npts += trace.x.length;
                 });
 
-                expect(nodes[0].length).toEqual(Npts);
+                expect(nodes.size()).toEqual(Npts);
             });
         });
 
@@ -61,7 +61,7 @@ describe('Test plot structure', function() {
                     Npts += trace.values.length;
                 });
 
-                expect(nodes[0].length).toEqual(Npts);
+                expect(nodes.size()).toEqual(Npts);
             });
         });
     });
@@ -82,7 +82,7 @@ describe('Test plot structure', function() {
                 if(items) Npts += items.length;
             });
 
-            expect(nodes[0].length).toEqual(Npts);
+            expect(nodes.size()).toEqual(Npts);
         });
 
         it('has as many *point* nodes as there are marker points', function() {
@@ -94,7 +94,7 @@ describe('Test plot structure', function() {
                 if(items) Npts += items.length;
             });
 
-            expect(nodes[0].length).toEqual(Npts);
+            expect(nodes.size()).toEqual(Npts);
         });
     });
 
@@ -113,7 +113,7 @@ describe('Test plot structure', function() {
                 Npts += trace.r.length;
             });
 
-            expect(nodes[0].length).toEqual(Npts);
+            expect(nodes.size()).toEqual(Npts);
         });
     });
 });