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

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+var describe = window.describe,
+    expect = window.expect,
+    it = window.it,
+    beforeEach = window.beforeEach;
+
+describe('c3 chart grid', function () {
+    'use strict';
+
+    var chart, d3;
+
+    var args = {
+        data: {
+            columns: [
+                ['data1', 30, 200, 100, 400, 150, 250]
+            ]
+        },
+        axis: {
+            y: {
+                tick: {
+                }
+            }
+        },
+        grid: {
+            y: {
+                show: false
+            }
+        }
+    };
+
+    beforeEach(function (done) {
+        chart = window.initChart(chart, args, done);
+        d3 = chart.internal.d3;
+    });
+
+    describe('y grid', function () {
+
+        it('should not show y grids', function () {
+            expect(chart.internal.main.select('.c3-ygrids').size()).toBe(0);
+        });
+
+        it('should update args to show y grids', function () {
+            args.grid.y.show = true;
+            expect(true).toBeTruthy();
+        });
+
+        it('should show y grids', function () {
+            var ygrids = chart.internal.main.select('.c3-ygrids');
+            expect(ygrids.size()).toBe(1);
+            expect(ygrids.selectAll('.c3-ygrid').size()).toBe(9);
+        });
+
+        it('should update args to show only 3 y grids', function () {
+            args.grid.y.ticks = 3;
+            expect(true).toBeTruthy();
+        });
+
+        it('should show only 3 y grids', function () {
+            var ygrids = chart.internal.main.select('.c3-ygrids');
+            expect(ygrids.size()).toBe(1);
+            expect(ygrids.selectAll('.c3-ygrid').size()).toBe(3);
+        });
+
+        it('should update args to show y grids depending on y axis ticks', function () {
+            args.axis.y.tick.count = 5;
+            expect(true).toBeTruthy();
+        });
+
+        it('should show grids depending on y axis ticks', function () {
+            var ygrids = chart.internal.main.select('.c3-ygrids'),
+                expectedYs = [];
+            ygrids.selectAll('.c3-ygrid').each(function (d, i) {
+                expectedYs[i] = +d3.select(this).attr('y1');
+            });
+            expect(ygrids.size()).toBe(1);
+            expect(ygrids.selectAll('.c3-ygrid').size()).toBe(5);
+            chart.internal.main.select('.c3-axis-y').selectAll('.tick').each(function (d, i) {
+                var t = d3.transform(d3.select(this).attr('transform'));
+                expect(t.translate[1]).toBe(expectedYs[i]);
+            });
+        });
+
+    });
+
+    describe('x grid lines', function () {
+
+        describe('on category axis', function () {
+
+            it('should update args', function () {
+                args = {
+                    data: {
+                        x: 'x',
+                        columns: [
+                            ['x', 'a', 'b', 'c', 'd'],
+                            ['data1', 30, 200, 100, 400],
+                        ]
+                    },
+                    axis: {
+                        x: {
+                            type: 'category'
+                        }
+                    },
+                    grid: {
+                        x: {
+                            lines: [
+                                {value: 3, text: 'Label 3'},
+                                {value: 'a', text: 'Label a'}
+                            ]
+                        }
+                    }
+                };
+                expect(true).toBeTruthy();
+            });
+
+            it('should show x grid lines', function () {
+                var lines = chart.internal.main.selectAll('.c3-xgrid-lines .c3-xgrid-line'),
+                    expectedX1 = [515, 74],
+                    expectedText = ['Label 3', 'Label a'];
+                lines.each(function (id, i) {
+                    var line = d3.select(this),
+                        l = line.select('line'),
+                        t = line.select('text');
+                    expect(+l.attr('x1')).toBeCloseTo(expectedX1[i], -1);
+                    expect(t.text()).toBe(expectedText[i]);
+                });
+            });
+
+        });
+
+    });
+
+});