scottohara/loot

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src/og-components/og-table-navigable/directives/og-table-navigable.test.ts

Summary

Maintainability
B
6 hrs
Test Coverage
A
100%
import type {
    JQueryKeyEventObjectMock,
    JQueryMouseEventObjectMock,
} from "~/mocks/types";
import type {
    OgTableActionHandlers,
    OgTableActions,
    OgTableNavigableScope,
} from "~/og-components/og-table-navigable/types";
import type { SinonMatcher, SinonStub } from "sinon";
import type DirectiveTest from "~/mocks/loot/directivetest";
import type OgTableNavigableService from "~/og-components/og-table-navigable/services/og-table-navigable";
import angular from "angular";
import sinon from "sinon";

describe("ogTableNavigable", (): void => {
    let ogTableNavigable: DirectiveTest,
        ogTableNavigableService: OgTableNavigableService,
        $window: angular.IWindowService,
        scope: OgTableNavigableScope & {
            rows: Record<string, unknown>[];
            model: OgTableActions;
        },
        isolateScope: OgTableNavigableScope;

    // Load the modules
    beforeEach(
        angular.mock.module("lootMocks", "ogComponents") as Mocha.HookFunction,
    );

    // Configure & compile the object under test
    beforeEach(
        angular.mock.inject(
            (
                _$window_: angular.IWindowService,
                directiveTest: DirectiveTest,
                _ogTableNavigableService_: OgTableNavigableService,
            ): void => {
                $window = _$window_;
                ogTableNavigableService = _ogTableNavigableService_;
                ogTableNavigable = directiveTest;
                ogTableNavigable.configure(
                    "og-table-navigable",
                    "table",
                    '<tbody><tr ng-repeat="row in rows"><td></td></tr></tbody>',
                );
                scope = ogTableNavigable.scope as OgTableNavigableScope & {
                    rows: Record<string, unknown>[];
                    model: OgTableActions;
                };
                scope.rows = [{}, {}];
                scope.model = {
                    selectAction: sinon.stub(),
                    cancelAction: sinon.stub(),
                    insertAction: sinon.stub(),
                    deleteAction: sinon.stub(),
                    editAction: sinon.stub(),
                    focusAction: sinon.stub(),
                };
                ogTableNavigable.compile({ "og-table-navigable": "model" });
                ogTableNavigable.scope.$digest();
                isolateScope = ogTableNavigable["element"].isolateScope();
            },
        ) as Mocha.HookFunction,
    );

    it("should attach a focusRow function to the handlers object", (): Chai.Assertion =>
        expect((scope.model as OgTableActionHandlers).focusRow).to.be.a(
            "function",
        ));

    describe("focusRow", (): void => {
        let row: JQuery<Element>;

        beforeEach((): void => {
            sinon.stub(isolateScope, "highlightRow");
            sinon.stub(isolateScope, "scrollToRow");
            row = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .last() as JQuery<Element>;
        });

        it("should highlight the row", (): void => {
            isolateScope.focusRow(row);
            expect(isolateScope.highlightRow).to.have.been.calledWith(row);
        });

        it("should scroll to the row", (): void => {
            isolateScope.focusRow(row);
            expect(isolateScope.scrollToRow).to.have.been.calledWith(row);
        });

        it("should store the focussed row index", (): void => {
            isolateScope.focusRow(row);
            expect(Number(isolateScope.focussedRow)).to.equal(1);
        });

        it("should invoke the focusAction handler", (): void => {
            isolateScope.focusRow(row);
            expect(scope.model.focusAction).to.have.been.calledWith(1);
        });
    });

    describe("highlightRow", (): void => {
        let oldRow: JQuery<Element>, newRow: JQuery<Element>;

        beforeEach((): void => {
            oldRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .first() as JQuery<Element>;
            oldRow.addClass("warning");
            newRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .last() as JQuery<Element>;
            isolateScope.highlightRow(newRow);
        });

        it("should remove highlighting on the previous row", (): Chai.Assertion =>
            expect(oldRow.hasClass("warning")).to.be.false);

        it("should highlight the new row", (): Chai.Assertion =>
            expect(newRow.hasClass("warning")).to.be.true);
    });

    describe("scrollToRow", (): void => {
        let mockJqueryInstance: { scrollTop: SinonStub; height: SinonStub },
            realJqueryInstance: JQuery,
            row: JQuery<Element>,
            top: number;

        beforeEach((): void => {
            top = 110;
            row = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .first() as JQuery<Element>;
            sinon.stub(row[0], "scrollIntoView");
            sinon
                .stub(row, "offset")
                .callsFake((): JQuery.Coordinates => ({ top, left: 0 }));
            sinon.stub(row, "height").returns(40);

            mockJqueryInstance = {
                scrollTop: sinon.stub().returns(100),
                height: sinon.stub().returns(200),
            };

            realJqueryInstance = $window.$ as JQuery;
            $window.$ = sinon.stub().returns(mockJqueryInstance);
        });

        it("should scroll the page up if the specified row is off the top of the screen", (): void => {
            top = 50;
            isolateScope.scrollToRow(row);
            expect(row[0]["scrollIntoView"]).to.have.been.calledWith({
                behavior: "smooth",
            });
        });

        it("should scroll the page down if the specified row is off the bottom of the screen", (): void => {
            top = 350;
            isolateScope.scrollToRow(row);
            expect(row[0]["scrollIntoView"]).to.have.been.calledWith({
                behavior: "smooth",
            });
        });

        it("should do nothing if the specified row is on screen", (): void => {
            isolateScope.scrollToRow(row);
            expect(row[0]["scrollIntoView"]).to.not.have.been.called;
        });

        it("should do nothing if the specified row offset can't be determined", (): void => {
            (row.offset as SinonStub).restore();
            sinon.stub(row, "offset").returns(undefined);
            isolateScope.scrollToRow(row);
            expect(row[0]["scrollIntoView"]).to.not.have.been.called;
        });

        afterEach((): JQuery => ($window.$ = realJqueryInstance));
    });

    describe("jumpToRow", (): void => {
        let targetRow: JQuery<Element>;
        const matchTargetRow: SinonMatcher = sinon.match(
            (value: JQuery<Element>): boolean => value[0] === targetRow[0],
        );

        beforeEach((): SinonStub => sinon.stub(isolateScope, "focusRow"));

        it("should do nothing if there is no focussed row", (): void => {
            isolateScope.focussedRow = null;
            isolateScope.jumpToRow(1);
            expect(isolateScope.focusRow).to.not.have.been.called;
        });

        it("should do nothing if the target row could not be determined", (): void => {
            (sinon.stub(isolateScope, "getRows") as SinonStub).callsFake(
                (): { length: number } => {
                    (isolateScope.getRows as SinonStub).restore();

                    return {
                        length: 4,
                    };
                },
            );
            isolateScope.focussedRow = 0;
            isolateScope.jumpToRow(3);
            expect(isolateScope.focusRow).to.not.have.been.called;
        });

        it("should focus the first row if currently focussed row + offset is less than zero", (): void => {
            isolateScope.focussedRow = 0;
            isolateScope.jumpToRow(-10);
            targetRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .first() as JQuery<Element>;
            expect(isolateScope.focusRow).to.have.been.calledWith(matchTargetRow);
        });

        it("should focus the last row if the currently focussed row + offset is greater than the number of rows", (): void => {
            isolateScope.focussedRow = 1;
            isolateScope.jumpToRow(10);
            targetRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .last() as JQuery<Element>;
            expect(isolateScope.focusRow).to.have.been.calledWith(matchTargetRow);
        });

        it("should focus the currently focussed row + offset if within the bounds of the table", (): void => {
            isolateScope.focussedRow = 1;
            isolateScope.jumpToRow(-1);
            targetRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .first() as JQuery<Element>;
            expect(isolateScope.focusRow).to.have.been.calledWith(matchTargetRow);
        });
    });

    describe("clickHandler", (): void => {
        const event: JQueryMouseEventObjectMock = {};

        beforeEach((): SinonStub => sinon.stub(isolateScope, "focusRow"));

        it("should do nothing when navigation is disabled", (): void => {
            ogTableNavigableService.enabled = false;
            isolateScope.clickHandler(event as JQueryMouseEventObject);
            expect(isolateScope.focusRow).to.not.have.been.called;
        });

        it("should do nothing if the closest parent TR element to where the event occurred could not be determined", (): void => {
            isolateScope.clickHandler(event as JQueryMouseEventObject);
            expect(isolateScope.focusRow).to.not.have.been.called;
        });

        it("should focus the closest parent TR element to where the event occurred", (): void => {
            const cellInLastRow: Element = $window
                    .$(ogTableNavigable["element"])
                    .find("tbody > tr > td")
                    .last() as Element,
                lastRow: JQuery<Element> = $window
                    .$(cellInLastRow)
                    .closest("[og-table-navigable] > tbody > tr") as JQuery<Element>;

            event.target = cellInLastRow;
            isolateScope.clickHandler(event as JQueryMouseEventObject);
            expect(isolateScope.focusRow).to.have.been.calledWith(lastRow);
        });
    });

    describe("doubleClickHandler", (): void => {
        const event: JQueryMouseEventObjectMock = {};

        it("should do nothing when navigation is disabled", (): void => {
            ogTableNavigableService.enabled = false;
            isolateScope.doubleClickHandler(event as JQueryMouseEventObject);
            expect(scope.model.selectAction).to.not.have.been.called;
        });

        it("should do nothing if the event was triggered by a button click", (): void => {
            event.target = { localName: "button" } as Element;
            isolateScope.doubleClickHandler(event as JQueryMouseEventObject);
            expect(scope.model.selectAction).to.not.have.been.called;
        });

        it("should do nothing if the closest parent TR element to where the event occurred could not be determined", (): void => {
            event.target = { localName: "td" } as Element;
            isolateScope.doubleClickHandler(event as JQueryMouseEventObject);
            expect(scope.model.selectAction).to.not.have.been.called;
        });

        it("should invoke the selectAction handler for the closest parent TR element to where the event occurred", (): void => {
            event.target = $window
                .$(ogTableNavigable["element"])
                .find("tbody > tr > td")
                .last() as Element;
            isolateScope.doubleClickHandler(event as JQueryMouseEventObject);
            expect(scope.model.selectAction).to.have.been.calledWith(1);
        });
    });

    describe("handlers.focusRow", (): void => {
        let lastRow: JQuery<Element>;
        const matchLastRow: SinonMatcher = sinon.match(
            (value: JQuery<Element>): boolean => value[0] === lastRow[0],
        );

        beforeEach((): void => {
            sinon.stub(isolateScope, "focusRow");
            sinon.stub(isolateScope, "highlightRow");
            isolateScope.focussedRow = 0;
            lastRow = $window
                .$(ogTableNavigable["element"])
                .children("tbody")
                .children("tr")
                .last() as JQuery<Element>;
        });

        it("should do nothing if the target row could not be determined", (): void => {
            isolateScope.handlers.focusRow(3);
            expect(isolateScope.focusRow).to.not.have.been.called;
            expect(isolateScope.highlightRow).to.not.have.been.called;
        });

        it("should focus the target row if not already focussed", (): void => {
            isolateScope.handlers.focusRow(1);
            expect(isolateScope.focusRow).to.have.been.calledWith(matchLastRow);
            expect(isolateScope.highlightRow).to.not.have.been.called;
        });

        it("should highlight the target row if already focussed", (): void => {
            isolateScope.focussedRow = 1;
            isolateScope.handlers.focusRow(1);
            expect(isolateScope.focusRow).to.not.have.been.called;
            expect(isolateScope.highlightRow).to.have.been.calledWith(matchLastRow);
        });
    });

    describe("keyHandler", (): void => {
        const TEST_MOVEMENT_KEYS: { code: number; name: string; amount: number }[] =
                [
                    { code: 33, name: "page up", amount: -10 },
                    { code: 34, name: "page down", amount: 10 },
                    { code: 38, name: "arrow up", amount: -1 },
                    { code: 40, name: "arrow down", amount: 1 },
                    { code: 74, name: "J", amount: 1 },
                    { code: 75, name: "K", amount: -1 },
                ],
            TEST_ACTION_KEYS: {
                code: number;
                ctrl?: boolean;
                name: string;
                handler: string;
            }[] = [
                { code: 8, name: "Backspace", handler: "deleteAction" },
                { code: 13, name: "Enter", handler: "selectAction" },
                { code: 27, name: "Esc", handler: "cancelAction" },
                { code: 45, name: "Insert", handler: "insertAction" },
                { code: 46, name: "Delete", handler: "deleteAction" },
                { code: 69, ctrl: true, name: "CTRL+E", handler: "editAction" },
                { code: 78, ctrl: true, name: "CTRL+N", handler: "insertAction" },
            ];

        let event: JQueryKeyEventObjectMock;

        beforeEach((): void => {
            event = {
                keyCode: 13,
                preventDefault: sinon.stub(),
            };
            sinon.stub(isolateScope, "jumpToRow");
            isolateScope.focussedRow = 1;
        });

        it("should do nothing when navigation is disabled", (): void => {
            ogTableNavigableService.enabled = false;
            isolateScope.keyHandler(event as JQueryKeyEventObject);
            expect(scope.model.selectAction).to.not.have.been.called;
        });

        TEST_MOVEMENT_KEYS.forEach(
            (key: { code: number; name: string; amount: number }): void => {
                it(`should jump ${key.amount < 0 ? "up" : "down"} ${Math.abs(
                    key.amount,
                )} row${1 === Math.abs(key.amount) ? "" : "s"} when the ${
                    key.name
                } key is pressed`, (): void => {
                    event.keyCode = key.code;
                    isolateScope.keyHandler(event as JQueryKeyEventObject);
                    expect(isolateScope.jumpToRow).to.have.been.calledWith(key.amount);
                    expect(event.preventDefault as SinonStub).to.have.been.called;
                });
            },
        );

        TEST_ACTION_KEYS.forEach(
            (key: {
                code: number;
                ctrl?: boolean;
                name: string;
                handler: string;
            }): void => {
                it(`should do nothing when the ${key.name} key${
                    undefined === key.ctrl ? " is" : "s are"
                } pressed and a ${key.handler} handler is not defined`, (): void => {
                    event.keyCode = key.code;
                    event.ctrlKey = key.ctrl;
                    scope.model[key.handler] = undefined;
                    ogTableNavigable.compile({ "og-table-navigable": "model" });
                    ogTableNavigable.scope.$digest();
                    isolateScope = ogTableNavigable["element"].isolateScope();
                    sinon.stub(isolateScope, "jumpToRow");
                    isolateScope.focussedRow = 1;
                    isolateScope.keyHandler(event as JQueryKeyEventObject);
                    expect(event.preventDefault as SinonStub).to.have.been.called;
                });

                it(`should invoke the defined ${key.handler} handler when the ${
                    key.name
                } key${undefined === key.ctrl ? " is" : "s are"} pressed`, (): void => {
                    event.keyCode = key.code;
                    event.ctrlKey = key.ctrl;
                    isolateScope.keyHandler(event as JQueryKeyEventObject);
                    expect(scope.model[key.handler] as SinonStub).to.have.been.calledWith(
                        1,
                    );
                    expect(event.preventDefault as SinonStub).to.have.been.called;
                });
            },
        );
    });

    it("should attach a click handler to the element", (): void => {
        sinon.stub(isolateScope, "clickHandler");
        ogTableNavigable["element"].triggerHandler("click");
        expect(isolateScope.clickHandler).to.have.been.called;
    });

    it("should attach a double-click handler to the element", (): void => {
        sinon.stub(isolateScope, "doubleClickHandler");
        ogTableNavigable["element"].triggerHandler("dblclick");
        expect(isolateScope.doubleClickHandler).to.have.been.called;
    });

    it("should attach a keydown handler to the document", (): void => {
        sinon.stub(isolateScope, "keyHandler");
        $window.$(document).triggerHandler("keydown");
        expect(isolateScope.keyHandler).to.have.been.called;
    });

    describe("on destroy", (): void => {
        beforeEach((): void => {
            sinon.stub(isolateScope, "clickHandler");
            sinon.stub(isolateScope, "doubleClickHandler");
            sinon.stub(isolateScope, "keyHandler");
            ogTableNavigable["element"].triggerHandler("$destroy");
        });

        it("should remove the click handler from the element", (): void => {
            ogTableNavigable["element"].triggerHandler("click");
            expect(isolateScope.clickHandler).to.not.have.been.called;
        });

        it("should remove the double-click handler from the element", (): void => {
            ogTableNavigable["element"].triggerHandler("dblclick");
            expect(isolateScope.doubleClickHandler).to.not.have.been.called;
        });

        it("should remove the keydown handler from the element", (): void => {
            $window.$(document).triggerHandler("keydown");
            expect(isolateScope.keyHandler).to.not.have.been.called;
        });
    });
});