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libraries/framework/vendor/plugins/c3charts/spec/zoom-spec.js

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+var describe = window.describe,
+    expect = window.expect,
+    it = window.it,
+    beforeEach = window.beforeEach;
+
+describe('c3 chart zoom', function () {
+    'use strict';
+
+    var chart, d3;
+
+    var args = {
+        data: {
+            columns: [
+                ['data1', 30, 200, 100, 400, 3150, 250],
+                ['data2', 50, 20, 10, 40, 15, 6025]
+            ]
+        },
+        axis: {
+            x: {
+                extent: [1, 2]
+            }
+        },
+        zoom: {
+            enable: true
+        },
+        subchart: {
+            show: true
+        }
+    };
+
+    beforeEach(function (done) {
+        chart = window.initChart(chart, args, done);
+        d3 = chart.internal.d3;
+    });
+
+    describe('default extent', function () {
+
+        describe('main chart domain', function () {
+
+            it('should have original y domain', function () {
+                var yDomain = chart.internal.y.domain(),
+                    expectedYDomain = [-591.5, 6626.5];
+                expect(yDomain[0]).toBe(expectedYDomain[0]);
+                expect(yDomain[1]).toBe(expectedYDomain[1]);
+            });
+
+        });
+
+        describe('main chart domain', function () {
+
+            it('should have original y domain in subchart', function () {
+                var yDomain = chart.internal.y.domain(),
+                    subYDomain = chart.internal.subY.domain();
+                expect(subYDomain[0]).toBe(yDomain[0]);
+                expect(subYDomain[1]).toBe(yDomain[1]);
+            });
+
+        });
+
+        describe('main chart domain', function () {
+
+            it('should have specified brush extent', function () {
+                var brushExtent = chart.internal.brush.extent(),
+                    expectedBrushExtent = [1, 2];
+                expect(brushExtent[0]).toBe(expectedBrushExtent[0]);
+                expect(brushExtent[1]).toBe(expectedBrushExtent[1]);
+            });
+
+        });
+
+    });
+
+});