openmct/platform/commonUI/general/test/TreeNodeControllerSpec.js

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/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine*/
define(
["../src/TreeNodeController"],
function (TreeNodeController) {
"use strict";
describe("The tree node controller", function () {
var mockScope,
mockNavigationService,
controller;
function TestObject(id, context) {
return {
getId: function () { return id; },
getCapability: function (key) {
return key === 'context' ? context : undefined;
}
};
}
beforeEach(function () {
mockScope = jasmine.createSpyObj(
"$scope",
[ "$watch", "$on" ]
);
mockNavigationService = jasmine.createSpyObj(
"navigationService",
[
"getNavigation",
"setNavigation",
"addListener",
"removeListener"
]
);
controller = new TreeNodeController(
mockScope,
mockNavigationService
);
});
it("listens for navigation changes", function () {
expect(mockNavigationService.addListener)
.toHaveBeenCalledWith(jasmine.any(Function));
});
it("allows tracking of expansion state", function () {
// The tree node tracks whether or not it has ever
// been expanded in order to lazily load the expanded
// portion of the tree.
expect(controller.hasBeenExpanded()).toBeFalsy();
controller.trackExpansion();
expect(controller.hasBeenExpanded()).toBeTruthy();
controller.trackExpansion();
expect(controller.hasBeenExpanded()).toBeTruthy();
});
it("tracks whether or not the represented object is currently navigated-to", function () {
// This is needed to highlight the current selection
var mockContext = jasmine.createSpyObj(
"context",
[ "getParent", "getPath", "getRoot" ]
),
obj = new TestObject("test-object", mockContext);
mockContext.getPath.andReturn([obj]);
// Verify precondition
expect(controller.isNavigated()).toBeFalsy();
mockNavigationService.getNavigation.andReturn(obj);
mockScope.domainObject = obj;
mockNavigationService.addListener.mostRecentCall.args[0](obj);
expect(controller.isNavigated()).toBeTruthy();
});
it("expands a node if it is on the navigation path", function () {
var mockParentContext = jasmine.createSpyObj(
"parentContext",
[ "getParent", "getPath", "getRoot" ]
),
mockChildContext = jasmine.createSpyObj(
"childContext",
[ "getParent", "getPath", "getRoot" ]
),
parent = new TestObject("parent", mockParentContext),
child = new TestObject("child", mockChildContext);
mockChildContext.getParent.andReturn(parent);
mockChildContext.getPath.andReturn([parent, child]);
mockParentContext.getPath.andReturn([parent]);
// Set up such that we are on, but not at the end of, a path
mockNavigationService.getNavigation.andReturn(child);
mockScope.domainObject = parent;
mockScope.toggle = jasmine.createSpyObj("toggle", ["setState"]);
// Trigger update
mockNavigationService.addListener.mostRecentCall.args[0](child);
expect(mockScope.toggle.setState).toHaveBeenCalledWith(true);
expect(controller.hasBeenExpanded()).toBeTruthy();
expect(controller.isNavigated()).toBeFalsy();
});
it("does not expand a node if no context is available", function () {
var mockParentContext = jasmine.createSpyObj(
"parentContext",
[ "getParent", "getPath", "getRoot" ]
),
mockChildContext = jasmine.createSpyObj(
"childContext",
[ "getParent", "getPath", "getRoot" ]
),
parent = new TestObject("parent", mockParentContext),
child = new TestObject("child", undefined);
mockChildContext.getParent.andReturn(parent);
mockChildContext.getPath.andReturn([parent, child]);
mockParentContext.getPath.andReturn([parent]);
// Set up such that we are on, but not at the end of, a path
mockNavigationService.getNavigation.andReturn(child);
mockScope.domainObject = parent;
mockScope.toggle = jasmine.createSpyObj("toggle", ["setState"]);
// Trigger update
mockNavigationService.addListener.mostRecentCall.args[0](child);
expect(mockScope.toggle.setState).not.toHaveBeenCalled();
expect(controller.hasBeenExpanded()).toBeFalsy();
expect(controller.isNavigated()).toBeFalsy();
});
it("removes its navigation listener when the scope is destroyed", function () {
var navCallback =
mockNavigationService.addListener.mostRecentCall.args[0];
// Make sure the controller is listening in the first place
expect(mockScope.$on).toHaveBeenCalledWith(
"$destroy",
jasmine.any(Function)
);
// Verify precondition - no removeListener called
expect(mockNavigationService.removeListener)
.not.toHaveBeenCalled();
// Call that listener (act as if scope is being destroyed)
mockScope.$on.mostRecentCall.args[1]();
// Verify precondition - no removeListener called
expect(mockNavigationService.removeListener)
.toHaveBeenCalledWith(navCallback);
});
});
}
);