[FIX] web: undefined graph when pie chart has no data

Before this commit, a crash occured when the no content
helper was rendered on an pie chart without data.

1 files changed, 20 insertions, 1 deletions

diff --git a/addons/web/static/tests/views/graph_tests.js b/addons/web/static/tests/views/graph_tests.js
index 5c9e5b67d6f..595ed3f31dd 100644
--- a/addons/web/static/tests/views/graph_tests.js
+++ b/addons/web/static/tests/views/graph_tests.js
@@ -225,7 +225,7 @@ QUnit.module('Views', {
         });
     });
 
-    QUnit.test('no content helper', function (assert) {
+    QUnit.test('no content helper (bar chart)', function (assert) {
         assert.expect(2);
         this.data.foo.records = [];
 
@@ -244,6 +244,25 @@ QUnit.module('Views', {
         graph.destroy();
     });
 
+    QUnit.test('no content helper (pie chart)', function (assert) {
+        assert.expect(2);
+        this.data.foo.records =  []
+
+        var graph = createView({
+            View: GraphView,
+            model: "foo",
+            data: this.data,
+            arch: '<graph type="pie">' +
+                        '<field name="product_id"/>' +
+                '</graph>',
+        });
+        assert.strictEqual(graph.$('div.o_graph_svg_container svg.nvd3-svg').length, 0,
+            "should not contain a div with a svg element");
+        assert.strictEqual(graph.$('div.o_view_nocontent').length, 1,
+            "should display the no content helper");
+        graph.destroy();
+    });
+
     QUnit.test('no content helper after update', function (assert) {
         var done = assert.async();
         assert.expect(4);