mirror of
https://github.com/chartjs/Chart.js.git
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c216c0af76
`karma.conf.ci.js` has been merged into `karma.conf.js` for local testing consistency: `gulp unittestWatch` has been replaced by `gulp unittest --watch` and thus use exactly the same config file. Upgrade to latest jasmine and karma packages and remove deprecated `gulp-karma` dependency (directly use `karma.Server` in gulp). Split `test/mockContext.js` into smaller `test/jasmine.*` modules to make easier unit tests maintenance and finally, move all `*.test.js` files under the `test/specs` folder.
345 lines
8.7 KiB
JavaScript
345 lines
8.7 KiB
JavaScript
describe('Chart.plugins', function() {
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beforeEach(function() {
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this._plugins = Chart.plugins.getAll();
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Chart.plugins.clear();
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});
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afterEach(function() {
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Chart.plugins.clear();
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Chart.plugins.register(this._plugins);
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delete this._plugins;
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});
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describe('Chart.plugins.register', function() {
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it('should register a plugin', function() {
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Chart.plugins.register({});
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.register({});
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expect(Chart.plugins.count()).toBe(2);
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});
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it('should register an array of plugins', function() {
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Chart.plugins.register([{}, {}, {}]);
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expect(Chart.plugins.count()).toBe(3);
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});
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it('should succeed to register an already registered plugin', function() {
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var plugin = {};
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Chart.plugins.register(plugin);
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.register(plugin);
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.register([{}, plugin, plugin]);
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expect(Chart.plugins.count()).toBe(2);
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});
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});
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describe('Chart.plugins.unregister', function() {
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it('should unregister a plugin', function() {
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var plugin = {};
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Chart.plugins.register(plugin);
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.unregister(plugin);
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expect(Chart.plugins.count()).toBe(0);
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});
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it('should unregister an array of plugins', function() {
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var plugins = [{}, {}, {}];
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Chart.plugins.register(plugins);
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expect(Chart.plugins.count()).toBe(3);
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Chart.plugins.unregister(plugins.slice(0, 2));
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expect(Chart.plugins.count()).toBe(1);
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});
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it('should succeed to unregister a plugin not registered', function() {
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var plugin = {};
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Chart.plugins.register(plugin);
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.unregister({});
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expect(Chart.plugins.count()).toBe(1);
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Chart.plugins.unregister([{}, plugin]);
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expect(Chart.plugins.count()).toBe(0);
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});
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});
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describe('Chart.plugins.notify', function() {
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it('should call inline plugins with arguments', function() {
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var plugin = {hook: function() {}};
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var chart = window.acquireChart({
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plugins: [plugin]
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});
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spyOn(plugin, 'hook');
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Chart.plugins.notify(chart, 'hook', 42);
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expect(plugin.hook.calls.count()).toBe(1);
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expect(plugin.hook.calls.first().args[0]).toBe(chart);
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expect(plugin.hook.calls.first().args[1]).toBe(42);
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expect(plugin.hook.calls.first().args[2]).toEqual({});
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});
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it('should call global plugins with arguments', function() {
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var plugin = {hook: function() {}};
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var chart = window.acquireChart({});
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spyOn(plugin, 'hook');
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Chart.plugins.register(plugin);
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Chart.plugins.notify(chart, 'hook', 42);
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expect(plugin.hook.calls.count()).toBe(1);
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expect(plugin.hook.calls.first().args[0]).toBe(chart);
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expect(plugin.hook.calls.first().args[1]).toBe(42);
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expect(plugin.hook.calls.first().args[2]).toEqual({});
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});
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it('should call plugin only once even if registered multiple times', function() {
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var plugin = {hook: function() {}};
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var chart = window.acquireChart({
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plugins: [plugin, plugin]
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});
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spyOn(plugin, 'hook');
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Chart.plugins.register([plugin, plugin]);
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Chart.plugins.notify(chart, 'hook');
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expect(plugin.hook.calls.count()).toBe(1);
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});
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it('should call plugins in the correct order (global first)', function() {
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var results = [];
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var chart = window.acquireChart({
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plugins: [{
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hook: function() {
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results.push(1);
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}
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}, {
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hook: function() {
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results.push(2);
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}
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}, {
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hook: function() {
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results.push(3);
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}
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}]
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});
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Chart.plugins.register([{
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hook: function() {
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results.push(4);
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}
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}, {
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hook: function() {
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results.push(5);
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}
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}, {
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hook: function() {
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results.push(6);
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}
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}]);
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var ret = Chart.plugins.notify(chart, 'hook');
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expect(ret).toBeTruthy();
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expect(results).toEqual([4, 5, 6, 1, 2, 3]);
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});
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it('should return TRUE if no plugin explicitly returns FALSE', function() {
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var chart = window.acquireChart({
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plugins: [{
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hook: function() {}
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}, {
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hook: function() {
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return null;
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}
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}, {
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hook: function() {
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return 0;
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}
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}, {
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hook: function() {
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return true;
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}
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}, {
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hook: function() {
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return 1;
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}
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}]
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});
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var plugins = chart.config.plugins;
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plugins.forEach(function(plugin) {
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spyOn(plugin, 'hook').and.callThrough();
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});
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var ret = Chart.plugins.notify(chart, 'hook');
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expect(ret).toBeTruthy();
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plugins.forEach(function(plugin) {
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expect(plugin.hook).toHaveBeenCalled();
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});
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});
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it('should return FALSE if any plugin explicitly returns FALSE', function() {
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var chart = window.acquireChart({
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plugins: [{
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hook: function() {}
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}, {
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hook: function() {
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return null;
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}
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}, {
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hook: function() {
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return false;
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}
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}, {
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hook: function() {
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return 42;
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}
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}, {
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hook: function() {
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return 'bar';
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}
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}]
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});
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var plugins = chart.config.plugins;
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plugins.forEach(function(plugin) {
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spyOn(plugin, 'hook').and.callThrough();
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});
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var ret = Chart.plugins.notify(chart, 'hook');
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expect(ret).toBeFalsy();
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expect(plugins[0].hook).toHaveBeenCalled();
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expect(plugins[1].hook).toHaveBeenCalled();
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expect(plugins[2].hook).toHaveBeenCalled();
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expect(plugins[3].hook).not.toHaveBeenCalled();
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expect(plugins[4].hook).not.toHaveBeenCalled();
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});
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});
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describe('config.options.plugins', function() {
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it('should call plugins with options at last argument', function() {
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var plugin = {id: 'foo', hook: function() {}};
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var chart = window.acquireChart({
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options: {
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plugins: {
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foo: {a: '123'},
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}
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}
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});
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spyOn(plugin, 'hook');
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Chart.plugins.register(plugin);
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Chart.plugins.notify(chart, 'hook');
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Chart.plugins.notify(chart, 'hook', ['bla']);
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Chart.plugins.notify(chart, 'hook', ['bla', 42]);
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expect(plugin.hook.calls.count()).toBe(3);
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expect(plugin.hook.calls.argsFor(0)[1]).toEqual({a: '123'});
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expect(plugin.hook.calls.argsFor(1)[2]).toEqual({a: '123'});
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expect(plugin.hook.calls.argsFor(2)[3]).toEqual({a: '123'});
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});
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it('should call plugins with options associated to their identifier', function() {
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var plugins = {
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a: {id: 'a', hook: function() {}},
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b: {id: 'b', hook: function() {}},
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c: {id: 'c', hook: function() {}}
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};
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Chart.plugins.register(plugins.a);
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var chart = window.acquireChart({
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plugins: [plugins.b, plugins.c],
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options: {
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plugins: {
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a: {a: '123'},
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b: {b: '456'},
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c: {c: '789'}
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}
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}
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});
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spyOn(plugins.a, 'hook');
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spyOn(plugins.b, 'hook');
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spyOn(plugins.c, 'hook');
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Chart.plugins.notify(chart, 'hook');
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expect(plugins.a.hook).toHaveBeenCalled();
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expect(plugins.b.hook).toHaveBeenCalled();
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expect(plugins.c.hook).toHaveBeenCalled();
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expect(plugins.a.hook.calls.first().args[1]).toEqual({a: '123'});
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expect(plugins.b.hook.calls.first().args[1]).toEqual({b: '456'});
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expect(plugins.c.hook.calls.first().args[1]).toEqual({c: '789'});
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});
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it('should not called plugins when config.options.plugins.{id} is FALSE', function() {
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var plugins = {
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a: {id: 'a', hook: function() {}},
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b: {id: 'b', hook: function() {}},
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c: {id: 'c', hook: function() {}}
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};
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Chart.plugins.register(plugins.a);
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var chart = window.acquireChart({
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plugins: [plugins.b, plugins.c],
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options: {
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plugins: {
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a: false,
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b: false
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}
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}
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});
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spyOn(plugins.a, 'hook');
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spyOn(plugins.b, 'hook');
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spyOn(plugins.c, 'hook');
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Chart.plugins.notify(chart, 'hook');
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expect(plugins.a.hook).not.toHaveBeenCalled();
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expect(plugins.b.hook).not.toHaveBeenCalled();
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expect(plugins.c.hook).toHaveBeenCalled();
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});
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it('should call plugins with default options when plugin options is TRUE', function() {
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var plugin = {id: 'a', hook: function() {}};
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Chart.defaults.global.plugins.a = {a: 42};
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Chart.plugins.register(plugin);
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var chart = window.acquireChart({
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options: {
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plugins: {
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a: true
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}
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}
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});
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spyOn(plugin, 'hook');
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Chart.plugins.notify(chart, 'hook');
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expect(plugin.hook).toHaveBeenCalled();
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expect(plugin.hook.calls.first().args[1]).toEqual({a: 42});
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});
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it('should call plugins with default options if plugin config options is undefined', function() {
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var plugin = {id: 'a', hook: function() {}};
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Chart.defaults.global.plugins.a = {a: 'foobar'};
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Chart.plugins.register(plugin);
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spyOn(plugin, 'hook');
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var chart = window.acquireChart();
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Chart.plugins.notify(chart, 'hook');
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expect(plugin.hook).toHaveBeenCalled();
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expect(plugin.hook.calls.first().args[1]).toEqual({a: 'foobar'});
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});
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});
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});
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